NXEngine v1.0.0.5

[NXEngine.git] / player.cpp

#include "nx.h"
#include "player.fdh"

Player *player = NULL;
static void InitWeapon(int wpn, int l1, int l2, int l3, int maxammo=0);

bool pinputs[INPUT_COUNT];
bool lastpinputs[INPUT_COUNT];

void PInitFirstTime()
{
        player->dir = RIGHT;
        player->hp = player->maxHealth = 3;
        player->nxflags |= NXFLAG_FOLLOW_SLOPE;
        
        player->ninventory = 0;
        
        memset(player->weapons, 0, sizeof(player->weapons));
        
        InitWeapon(WPN_POLARSTAR,               10, 20, 10);
        InitWeapon(WPN_MGUN,                    30, 40, 10, 100);
        InitWeapon(WPN_MISSILE,                 10, 20, 10, 10);
        InitWeapon(WPN_FIREBALL,                10, 20, 20);
        InitWeapon(WPN_BLADE,                   15, 18, 0);
        InitWeapon(WPN_BUBBLER,                 10, 20, 5);
        InitWeapon(WPN_SUPER_MISSILE,   30, 60, 10, 10);
        InitWeapon(WPN_SNAKE,                   30, 40, 16);
        InitWeapon(WPN_SPUR,                    40, 60, 200);
        InitWeapon(WPN_NEMESIS,                 1,  1,  0);
        
        player->weapons[WPN_MGUN].SetFireRate(6, 6, 6);
        player->weapons[WPN_MGUN].SetRechargeRate(5, 5, 5);
        
        player->weapons[WPN_BUBBLER].SetFireRate(0, 7, 7);
        player->weapons[WPN_BUBBLER].SetRechargeRate(20, 1, 1);
        
        player->curWeapon = WPN_NONE;
        
        if (player->XPText) delete player->XPText;
        player->XPText = new FloatText(SPR_WHITENUMBERS);
        
        // initialize player repel points
        PInitRepel();
}


static void InitWeapon(int wpn, int l1, int l2, int l3, int maxammo)
{
        player->weapons[wpn].max_xp[0] = l1;
        player->weapons[wpn].max_xp[1] = l2;
        player->weapons[wpn].max_xp[2] = l3;
        player->weapons[wpn].maxammo = maxammo;
}


void InitPlayer(void)
{
        player->lookaway = false;
        player->walking = false;
        player->dead = false;
        player->drowned = false;
        player->disabled = false;
        
        player->hurt_time = 0;
        player->hurt_flash_state = 0;
        player->water_shield_frame = 0;
        player->movementmode = MOVEMODE_NORMAL;
        player->inputs_locked_lasttime = true;
        
        player->booststate = BOOST_OFF;
        player->lastbooststate = BOOST_OFF;
        player->boosterfuel = BOOSTER_FUEL_QTY;
        
        player->xinertia = 0;
        player->yinertia = 0;
        
        player->riding = NULL;
        player->lastriding = NULL;
        player->cannotride = NULL;
        
        player->DamageText->Reset();
        player->XPText->Reset();
        statusbar.xpflashcount = 0;
        
        PResetWeapons();
        PSelectSprite();
        
        // this prevents a splash if we start underwater, and prevents us
        // from drowning immediately since our air isn't yet set up
        player->touchattr = TA_WATER;
        player->airleft = 1000;
        player->airshowtimer = 0;
}

Player::~Player()
{
        if (XPText)
        {
                delete XPText;
                XPText = NULL;
        }
}

/*
void c------------------------------() {}
*/

void HandlePlayer(void)
{
        // freeze player for the split-second between <TRA to a new map and the
        // start of the on-entry script for that map. (Fixes: player could shoot during
        // end sequence if he holds key down).
        if (game.switchstage.mapno != -1)
                return;
        
        PUpdateInput();
        
        if (!player->dead)
        {
                PHandleAttributes();                    // handle special tile attributes
                PHandleSolidMushyObjects();             // handle objects like bugs marked "solid / mushy"
                
                PDoWeapons();   // p_arms.cpp
                PDoHurtFlash();
                
                switch((inputs[DEBUG_MOVE_KEY] && settings->enable_debug_keys) ? MOVEMODE_DEBUG : \
                           player->movementmode)
                {
                        case MOVEMODE_NORMAL:
                        {
                                PDoBooster();
                                PDoBoosterEnd();
                                PDoWalking();
                                PDoLooking();
                                PDoJumping();
                                PDoFalling();
                                PSelectFrame();
                        }
                        break;
                        
                        case MOVEMODE_ZEROG:            // Ironhead battle/UNI 1
                        {
                                PHandleZeroG();
                        }
                        break;
                        
                        case MOVEMODE_DEBUG:
                        {
                                player->xinertia = player->yinertia = 0;
                                player->blockl = player->blockr = player->blockd = player->blocku = 0;
                                
                                if (inputs[DOWNKEY]) player->y += 0x1000;
                                if (inputs[UPKEY]) player->y -= 0x1000;
                                if (inputs[LEFTKEY]) { player->x -= 0x1000; player->dir = LEFT; }
                                if (inputs[RIGHTKEY]) { player->x += 0x1000; player->dir = RIGHT; }
                                
                                map_scroll_jump(player->x, player->y);
                                
                                player->frame = 2;
                        }
                        break;
                        
                        default:
                        {
                                player->xinertia = player->yinertia = 0;
                        }
                        break;
                }
                
                // handle some special features, like damage and bouncy, of
                // 100% solid objects such as moving blocks. It's put at the end
                // so that we can see the desired inertia of the player before
                // it's canceled out by any block points that are set. That way
                // we can tell if the player is trying to move into it.
                PHandleSolidBrickObjects();
        }
        
        // apply inertia
        PDoPhysics();
        
        // thud sound when land on some objects
        if (player->riding && !player->lastriding &&
                (player->riding->nxflags & NXFLAG_THUD_ON_RIDING))
        {
                sound(SND_THUD);
        }
}

// player aftermove routine
void HandlePlayer_am(void)
{
        //debug("xinertia: %s", strhex(player->xinertia));
        //debug("yinertia: %s", strhex(player->yinertia));
        //debug("booststate: %d", player->booststate);
        //debug("y: %d", player->y>>CSF);
        //debug("riding %x", player->riding);
        //debug("block: %d%d%d%d", player->blockl, player->blockr, player->blocku, player->blockd);
        
        // if player is riding some sort of platform apply it's inertia to him
        if (player->riding)
        {
                player->apply_xinertia(player->riding->xinertia);
                player->apply_yinertia(player->riding->yinertia);
        }
        
        // keep player out of blocks "SMB1 style"
        PDoRepel();
        
        // handle landing and bonking head
        if (player->blockd && player->yinertia > 0)
        {
                if (player->yinertia > 0x400 && !player->hide)
                        sound(SND_THUD);
                
                player->yinertia = 0;
                player->jumping = 0;
        }
        else if (player->blocku && player->yinertia < 0)
        {
                // he behaves a bit differently when bonking his head on a
                // solid-brick object vs. bonking his head on the map.
                
                // bonk-head star effect
                if (player->yinertia < -0x200 && !player->hide && \
                        player->blocku == BLOCKED_MAP)
                {
                        sound(SND_BONK_HEAD);
                        effect(player->CenterX(), player->y, EFFECT_BONKPLUS);
                }
                
                // bounces off ceiling with booster 0.8
                if (player->booststate == BOOST_08)
                {
                        player->yinertia = 0x200;
                }
                else if (player->bopped_object && player->bopped_object->yinertia != 0)
                {
                        // no clear yinertia when bop head on OBJ_BLOCK_MOVEV in labyrinth.
                }
                else
                {
                        player->yinertia = 0;
                }
                
                player->jumping = false;
        }
        
        player->lastwalking = player->walking;
        player->lastriding = player->riding;
        player->inputs_locked_lasttime = player->inputs_locked;
        memcpy(lastpinputs, pinputs, sizeof(lastpinputs));
}

/*
void c------------------------------() {}
*/

void PDoPhysics(void)
{
        if (player->xinertia > 0x5ff)  player->xinertia = 0x5ff;
        if (player->xinertia < -0x5ff) player->xinertia = -0x5ff;
        if (player->yinertia > 0x5ff)  player->yinertia = 0x5ff;
        if (player->yinertia < -0x5ff) player->yinertia = -0x5ff;
        
        if (player->blockd && player->yinertia > 0)
                player->yinertia = 0;
        
        player->apply_yinertia(player->yinertia);
        
        // if xinertia is less than the decel speed then maintain the value but don't actually
        // move anything. It seems a bit odd...but that's the best I can figure to make it
        // behave like the original.
        if (player->xinertia > player->decelspeed || player->xinertia < -player->decelspeed)
        {
                player->apply_xinertia(player->xinertia);
        }
}

void PUpdateInput(void)
{
int i;

        if (player->inputs_locked || player->disabled)
        {
                memset(pinputs, 0, sizeof(pinputs));
        }
        else
        {
                memcpy(pinputs, inputs, sizeof(pinputs));
                
                // prevent jumping/shooting when leaving a messagebox
                if (player->inputs_locked_lasttime)
                {
                        for(i=0;i<INPUT_COUNT;i++)
                                lastpinputs[i] |= pinputs[i];
                }
                
                // allow entering inventory
                if (justpushed(INVENTORYKEY))
                {
                        if (!game.frozen && !player->dead && GetCurrentScript() == -1)
                        {
                                game.setmode(GM_INVENTORY);
                        }
                }
                
                // Map System
                if (justpushed(MAPSYSTEMKEY))
                {
                        if (!game.frozen && !player->dead && GetCurrentScript() == -1)
                        {
                                if (fade.getstate() == FS_NO_FADE && game.switchstage.mapno == -1)
                                {
                                        game.setmode(GM_MAP_SYSTEM, game.mode);
                                }
                        }
                }
        }
}


// handles tile attributes of tiles player is touching
void PHandleAttributes(void)
{
static const Point pattrpoints[] = { {8, 8}, {8, 14} };
unsigned int attr;
int tile;

        // get attributes of tiles player it touching.
        // first, we'll check the top pattrpoint alone; this is the point at
        // which you go underwater, when that point is lower than the water level.
        // ** There is a spot in Labyrinth W just after the Shop where the positioning
        // of this point is a minor element in the gameplay, and so it must be set
        // correctly. If set too high you will not be underwater after climbing up the
        // small slope and you can just jump over the wall that you shouldn't be able to.
        attr = player->GetAttributes(&pattrpoints[0], 1, &tile);
        
        // water handler -- water uses only the top pattrpoint
        if (attr & TA_WATER)
        {
                // check if we just entered the water
                if (!(player->touchattr & TA_WATER))
                {
                        // splash on entering water quick enough
                        if ((player->yinertia > 0x200 && !player->blockd) || \
                                (player->xinertia < -0x200 || player->xinertia > 0x200))
                        {
                                int x = player->CenterX();
                                int y = player->CenterY();
                                int splashtype = !(player->touchattr & TA_HURTS_PLAYER) ? \
                                                                        OBJ_WATER_DROPLET : OBJ_LAVA_DROPLET;
                                
                                for(int i=0;i<8;i++)
                                {
                                        Object *o = CreateObject(x + (random(-8, 8) << CSF), y, splashtype);
                                        o->xinertia = random(-0x200, 0x200) + player->xinertia;
                                        o->yinertia = random(-0x200, 0x80) - (player->yinertia >> 1);
                                }
                                
                                sound(SND_SPLASH);
                        }
                }
                
                // setup physics constants for water
                player->walkspeed = 0x196;
                player->fallspeed = 0x2ff;
                
                player->fallaccel = 0x28;
                player->jumpfallaccel = 0x10;
                
                player->walkaccel = 0x2a;
                player->jumpwalkaccel = 0x10;
                
                player->decelspeed = 0x19;
                // was set at 0x280 but I believe that makes it impossible to clear one of the long
                // spike jumps in River
                player->jumpvelocity = 0x2c0;
                
                // decrement air left
                if (player->equipmask & EQUIP_AIRTANK)
                {
                        player->airleft = 1000;
                        player->airshowtimer = 0;
                }
                else
                {
                        player->airshowtimer = 60;
                        if (!player->drowned)
                        {
                                if (!player->inputs_locked) player->airleft--;
                                
                                if (player->airleft <= 0 && !game.debug.god)
                                {       // player drowned
                                        // if flag 4000 is set, then we do not drown, but are in the Almond
                                        // level after Core battle, and should instead execute script 1100.
                                        if (game.flags[4000])
                                        {       // "your senses dim and the world grows dark"
                                                StartScript(1100);
                                        }
                                        else
                                        {       // nope sorry buddy, no such luck this time
                                                Object *o = CreateObject(player->x, player->y, OBJ_NULL);
                                                o->sprite = SPR_PDROWNED;
                                                o->dir = player->dir;
                                                
                                                killplayer(SCRIPT_DROWNED);
                                        }
                                        
                                        player->drowned = 1;
                                }
                        }
                }
        }
        else
        {
                // setup normal physics constants
                player->walkspeed = 0x32c;////0x030e;
                player->fallspeed = 0x5ff;
                
                player->fallaccel = 0x50;
                player->jumpfallaccel = 0x20;
                
                player->walkaccel = 0x55;
                player->jumpwalkaccel = 0x20;
                
                player->decelspeed = 0x33;
                player->jumpvelocity = 0x500;
                
                // reset air supply
                player->airleft = 1000;
                if (player->airshowtimer) player->airshowtimer--;
        }
        
        // add in the bottom pattrpoint, but don't let it set the "water" bit.
        // only the top pattrpoint can set "water".
        attr |= (player->GetAttributes(&pattrpoints[1], 1, &tile) & ~TA_WATER);
        
        if (attr & TA_HURTS_PLAYER)
                hurtplayer(10);
        
        // water current/wind:
        // for water currents--get the sum total of several points on the player to see
        // all the directions he's getting blown around at (support multiple directions)
        DoWaterCurrents();
        player->touchattr = attr;
}

// handes player being blown around by water currents
void DoWaterCurrents(void)
{
static Point currentpoints[] = { {7, 8},
                                                                 {1, 2}, {1, 8}, {1, 14},
                                                                 {7, 2}, {7, 14},
                                                                 {15,2}, {15, 8}, {15, 14} };
int i;
static const int current_dir[] = { LEFTMASK, UPMASK, RIGHTMASK, DOWNMASK };
uint8_t currentmask;
int tile;

        // check each point in currentpoints[] for a water current, and if found,
        // add it to the list of directions we're being blown
        currentmask = 0;
        for(i=0;i<9;i++)
        {
                //DebugCrosshair(player->x+(currentpoints[i].x<<CSF),player->y+(currentpoints[i].y<<CSF), 255,0,0);
                
                if (player->GetAttributes(&currentpoints[i], 1, &tile) & TA_CURRENT)
                {
                        currentmask |= current_dir[tilecode[tile] & 3];
                }
                
                // if the center point (the first one) has no current, then don't
                // bother checking the rest. as during 90% of the game you are NOT underwater.
                if (!currentmask) return;
        }
        
        // these constants are very critical for Waterway to work properly.
        // please be careful with them.
        if (currentmask & LEFTMASK)  player->xinertia -= 0x88;
        if (currentmask & RIGHTMASK) player->xinertia += 0x88;
        if (currentmask & UPMASK)    player->yinertia -= 0x80;
        if (currentmask & DOWNMASK)  player->yinertia += 0x50;
}


void PDoWalking(void)
{
int walk_accel;
int limit;
        
        walk_accel = (player->blockd) ? player->walkaccel : player->jumpwalkaccel;
        
        // walking/moving
        if (pinputs[LEFTKEY] || pinputs[RIGHTKEY])
        {
                // we check both without an else so that both keys down=turn right & walk in place
                if (pinputs[LEFTKEY])
                {
                        player->walking = true;
                        player->dir = LEFT;
                        
                        if (player->xinertia > -player->walkspeed)
                        {
                                player->xinertia -= walk_accel;
                                
                                if (player->xinertia < -player->walkspeed)
                                        player->xinertia = -player->walkspeed;
                        }
                }
                
                if (pinputs[RIGHTKEY])
                {
                        player->walking = true;
                        player->dir = RIGHT;
                        
                        if (player->xinertia < player->walkspeed)
                        {
                                player->xinertia += walk_accel;
                                
                                if (player->xinertia > player->walkspeed)
                                        player->xinertia = player->walkspeed;
                        }
                }
                
                if (player->walking && !player->lastwalking)
                        player->walkanimframe = 1;
        }
        else
        {
                player->walking = false;
                player->walkanimframe = 0;
                player->walkanimtimer = 0;
                // tap sound when stopped walking
                if (player->lastwalking && player->blockd)
                        sound(SND_PLAYER_WALK);
        }
        
        // deceleration
        if (player->blockd && player->yinertia >= 0)
        {       // deceleration on ground...
                // always move towards zero at decelspeed
                if (player->xinertia > 0)
                {
                        if (player->blockr && !pinputs[RIGHTKEY])
                        {
                                player->xinertia = 0;
                        }
                        else if (player->xinertia > player->decelspeed)
                        {
                                player->xinertia -= player->decelspeed;
                        }
                        else
                        {
                                player->xinertia = 0;
                        }
                }
                else if (player->xinertia < 0)
                {
                        if (player->blockl && !pinputs[LEFTKEY])
                        {
                                player->xinertia = 0;
                        }
                        else if (player->xinertia < -player->decelspeed)
                        {
                                player->xinertia += player->decelspeed;
                        }
                        else
                        {
                                player->xinertia = 0;
                        }
                }
        }
        else            // deceleration in air...
        {
                // implements 2 things
                //      1) if player partially hits a brick while in air, his inertia is lesser after he passes it
                //      2) but, if he's trying to turn around, let him! don't "stick" him to it just because
                //              of a high inertia when he hit it
                if (player->blockr)
                {
                        limit = (player->dir == RIGHT) ? 0x180 : 0;
                        if (player->xinertia > limit) player->xinertia = limit;
                }
                
                if (player->blockl)
                {
                        limit = (player->dir == LEFT) ? -0x180 : 0;
                        if (player->xinertia < limit) player->xinertia = limit;
                }
        }
}

void PDoFalling(void)
{
        if (player->disabled)
                return;
        
        if (player->booststate)
                return;
        
        if (game.curmap == STAGE_KINGS_TABLE && \
                fade.getstate() == FS_FADING)
                return;
        
        // needed to be able to see the falling blocks during
        // good-ending Helicopter cutscene (otherwise your
        // invisible character falls and the blocks spawn too low).
        if (player->hide)
        {
                player->xinertia = 0;
                player->yinertia = 0;
                return;
        }
        
        // use jump gravity as long as Jump Key is down and we're moving up,
        // regardless of whether a jump was ever actually initiated.
        // this is for the fans that blow up--you can push JUMP to climb higher.
        if (player->yinertia < 0 && pinputs[JUMPKEY])
        {       // use jump gravity
                if (player->yinertia < player->fallspeed)
                {
                        player->yinertia += player->jumpfallaccel;
                        if (player->yinertia > player->fallspeed) player->yinertia = player->fallspeed;
                }
        }
        else
        {       // use normal gravity
                if (player->yinertia < player->fallspeed)
                {
                        player->yinertia += player->fallaccel;
                        if (player->yinertia > player->fallspeed) player->yinertia = player->fallspeed;
                }
                
                // if we no longer qualify for jump gravity then the jump is over
                player->jumping = 0;
        }
}


void PDoJumping(void)
{
        // jumping
        if (pinputs[JUMPKEY] && !lastpinputs[JUMPKEY])
        {
                if (player->blockd)
                {
                        if (!player->jumping)
                        {
                                player->jumping = true;
                                player->yinertia -= player->jumpvelocity;
                                sound(SND_PLAYER_JUMP);
                        }
                }
                else if ((player->equipmask & (EQUIP_BOOSTER08 | EQUIP_BOOSTER20)))
                {
                        PStartBooster();
                }
        }
}


void PDoLooking(void)
{
int lookscroll_want;
int i, key;

        // looking/aiming up and down
        player->look = lookscroll_want = 0;
        
        if (pinputs[DOWNKEY])
        {
                if (!player->blockd)
                {
                        player->look = DOWN;
                }
                else if (!lastpinputs[DOWNKEY])
                {       // activating scripts/talking to NPC's
                        
                        if (!player->walking && !player->lookaway && \
                                !pinputs[JUMPKEY] && !pinputs[FIREKEY])
                        {
                                if (!inputs[DEBUG_MOVE_KEY] || !settings->enable_debug_keys)
                                {
                                        player->lookaway = true;
                                        player->xinertia = 0;
                                        PTryActivateScript();
                                }
                        }
                }
                
                // can still scroll screen down while standing, even though
                // it doesn't show any different frame.
                lookscroll_want = DOWN;
        }
        
        if (pinputs[UPKEY])
        {
                player->look = lookscroll_want = UP;
        }
        
        // when looking, pause a second to be sure they really want to do it
        // before triggering any real screen scrolling
        if (player->lookscroll != lookscroll_want)
        {
                if (player->lookscroll_timer >= 4 || !lookscroll_want)
                {
                        player->lookscroll = lookscroll_want;
                }
                else
                {
                        player->lookscroll_timer++;
                }
        }
        else
        {
                player->lookscroll_timer = 0;
        }
        
        // deactivation of lookaway
        if (player->lookaway)
        {
                // keys which deactivate lookaway when you are facing away from player
                static const char actionkeys[] = \
                        { LEFTKEY, RIGHTKEY, UPKEY, JUMPKEY, FIREKEY, -1 };
                
                // stop looking away if any keys are pushed
                for(i=0;;i++)
                {
                        key = actionkeys[i];
                        if (key == -1) break;
                        
                        if (pinputs[key])
                        {
                                player->lookaway = false;
                                break;
                        }
                }
                
                if (!player->blockd)
                        player->lookaway = false;
        }
}

/*
void c------------------------------() {}
*/

// called when the player has just turned on the booster
void PStartBooster(void)
{
        if (player->boosterfuel <= 0)
                return;
        
        // booster 2.0 lets you pick a direction and tacks inertia
        // solid in that direction when first activated
        if ((player->equipmask & EQUIP_BOOSTER20))
        {
                // default boost direction if no key is pressed
                player->booststate = BOOST_UP;
                
                // in order of precedence
                if (inputs[LEFTKEY] || inputs[RIGHTKEY])
                        player->booststate = BOOST_HOZ;
                
                if (inputs[DOWNKEY])
                        player->booststate = BOOST_DOWN;
                
                if (inputs[UPKEY])
                        player->booststate = BOOST_UP;
                
                // set initial inertia full on
                if (player->booststate == BOOST_UP || player->booststate == BOOST_DOWN)
                        player->xinertia = 0;
                
                switch(player->booststate)
                {
                        case BOOST_UP:
                                player->yinertia = -0x5ff;
                        break;
                        
                        case BOOST_DOWN:
                                player->yinertia = 0x5ff;
                        break;
                        
                        case BOOST_HOZ:
                        {
                                player->yinertia = 0;
                                
                                if (inputs[LEFTKEY])
                                        player->xinertia = -0x5ff;
                                else
                                        player->xinertia = 0x5ff;
                        }
                        break;
                }
        }
        else
        {
                player->booststate = BOOST_08;
                
                // help it overcome gravity
                if (player->yinertia > 0x100)
                        player->yinertia >>= 1;
        }
        
        PBoosterSmokePuff();
}

// called every tick to run the booster
void PDoBooster(void)
{
        /*static const char *statedesc[] = { "OFF", "UP", "DN", "HOZ", "0.8" };
        debug("fuel: %d", player->boosterfuel);
        debug("booststate: %s", statedesc[player->booststate]);
        debug("xinertia: %d", player->xinertia);
        debug("yinertia: %d", player->yinertia);*/
        
        if (!(player->equipmask & (EQUIP_BOOSTER08 | EQUIP_BOOSTER20)))
        {
                player->booststate = BOOST_OFF;
                return;
        }
        
        if (!pinputs[JUMPKEY])
        {
                player->booststate = BOOST_OFF;
                
                if (player->blockd)
                        player->boosterfuel = BOOSTER_FUEL_QTY;
                
                return;
        }
        
        if (!player->booststate)
                return;
        
        // player seems to want it active...check the fuel
        if (player->boosterfuel <= 0)
        {
                player->booststate = BOOST_OFF;
                return;
        }
        else
        {
                player->boosterfuel--;
        }
        
        // ok so then, booster is active right now
        bool sputtering = false;
        
        switch(player->booststate)
        {
                case BOOST_HOZ:
                {
                        if ((player->dir == LEFT && player->blockl) || \
                                (player->dir == RIGHT && player->blockr))
                        {
                                player->yinertia = -0x100;
                        }
                        
                        // this probably isn't the right way to do this, but this
                        // bit makes the hurt-hop work if you get hit during a sideways boost
                        //if (player->hitwhileboosting)
                        //      player->yinertia = -0x400;
                        
                        if (player->dir == LEFT)  player->xinertia -= 0x20;
                        if (player->dir == RIGHT) player->xinertia += 0x20;
                }
                break;
                
                case BOOST_UP:
                {
                        player->yinertia -= 0x20;
                }
                break;
                
                case BOOST_DOWN:
                {
                        player->yinertia += 0x20;
                }
                break;
                
                case BOOST_08:
                {
                        // top speed and sputtering
                        if (player->yinertia < -0x400)
                        {
                                player->yinertia += 0x20;
                                sputtering = true;      // no sound/smoke this frame
                        }
                        else
                        {
                                player->yinertia -= 0x20;
                        }
                }
                break;
        }
        
        // don't land if we booster through a one-tile high corridor,
        // but do land if we're, well, landing on something (yinertia not negative).
        // must be done after booster inertia applied to work properly.
        // for 1) there's a place in the village next to Mahin that is good for testing this,
        // for 2) the gaps in outer wall by the little house.
        if (player->blockd)
        {
                if (player->yinertia < 0)
                        player->blockd = false;
                else
                {
                        player->booststate = BOOST_OFF;
                        return;
                }
        }
        
        // smoke and sound effects
        if ((player->boosterfuel % 3) == 1 && !sputtering)
        {
                PBoosterSmokePuff();
        }
}

// called every tick just after PDoBooster returns.
// tones down player's inertia a bit once the Booster 2.0 stops firing
void PDoBoosterEnd()
{
        // put here to be sure it catches all the different ways the Booster can get turned off
        //if (!player->booststate)
                //player->hitwhileboosting = false;
        
        if (player->booststate != player->lastbooststate)
        {
                if (player->booststate == BOOST_OFF && (player->equipmask & EQUIP_BOOSTER20))
                {
                        switch(player->lastbooststate)
                        {
                                case BOOST_HOZ:
                                        player->xinertia >>= 1;
                                break;
                                
                                case BOOST_UP:
                                        player->yinertia >>= 1;
                                break;
                        }
                }
        }
        
        // in the original touching a slope while boosting horizontally
        // disables the booster. In that case, we don't want to half the xinertia,
        // which is why it's here.
        //if (player->booststate == BOOST_HOZ && CheckStandOnSlope(player))
                //player->booststate = BOOST_OFF;
        
        player->lastbooststate = player->booststate;
}

// spawn a Booster smoke puff
void PBoosterSmokePuff()
{
        // these are the directions the SMOKE is traveling, not the player
        //                                 RT   LT    UP    DN
        static const int smoke_xoffs[] = { 10,   4,   7,    7  };
        static const int smoke_yoffs[] = { 10,  10,   0,   14  };
        int smokedir;
        
        switch(player->booststate)
        {
                case BOOST_HOZ: smokedir = (player->dir ^ 1); break;
                case BOOST_UP:  smokedir = DOWN; break;
                case BOOST_DOWN:smokedir = UP; break;
                case BOOST_08:  smokedir = DOWN; break;
                default:                return;
        }
        
        int x = player->x + (smoke_xoffs[smokedir] << CSF);
        int y = player->y + (smoke_yoffs[smokedir] << CSF);
        
        Caret *smoke = effect(x, y, EFFECT_SMOKETRAIL_SLOW);
        smoke->MoveAtDir(smokedir, 0x200);
        
        sound(SND_BOOSTER);
}

/*
void c------------------------------() {}
*/

// handle some special characteristics of solid-brick objects,
// such as bouncy and damage. Unlike with FLAG_SOLID_MUSHY; the
// block/l/r/u/d flags for these objects have already been set in
// UpdateBlockStates, so we don't have to worry about those.
void PHandleSolidBrickObjects(void)
{
int i;
SIFSprite *sprite = player->Sprite();
Object *o;

        // calculate total inertia of player--this is needed so that
        // the forcefields in the Monster X arena will damage you if
        // the treads carry you into them.
        int p_xinertia = player->xinertia;
        int p_yinertia = player->yinertia;
        if (player->riding)
        {
                p_xinertia += player->riding->xinertia;
                p_yinertia += player->riding->yinertia;
        }
        
        for(i=0;i<nOnscreenObjects;i++)
        {
                o = onscreen_objects[i];
                if (!(o->flags & FLAG_SOLID_BRICK)) continue;
                
                // left, right, and up contact damage
                if (o->damage > 0)
                {
                        if (player->blockl && player->CheckSolidIntersect(o, &sprite->block_l))
                        {
                                if (p_xinertia < 0 || o->xinertia > 0)
                                        o->DealContactDamage();
                        }
                        
                        if (player->blockr && player->CheckSolidIntersect(o, &sprite->block_r))
                        {
                                if (p_xinertia > 0 || o->xinertia < 0)
                                        o->DealContactDamage();
                        }
                        
                        if (player->blocku && player->CheckSolidIntersect(o, &sprite->block_u))
                        {
                                if (p_yinertia < 0 || o->yinertia > 0)
                                        o->DealContactDamage();
                        }
                }
                
                // stuff for when you are standing on it
                if (player->blockd && player->CheckSolidIntersect(o, &sprite->block_d))
                {
                        if (o->damage && (player->yinertia >= 0 || o->yinertia < 0))
                                o->DealContactDamage();
                        
                        // don't do weird glitchy shit if we jump while being carried upward
                        // by an object moving faster than us. handles if you jump while flying
                        // momorin's rocket.
                        if (player->yinertia < 0 && o->yinertia < player->yinertia)
                                player->yinertia = 0;
                        
                        // handle FLAG_BOUNCY--used eg by treads on Monster X when tipped up
                        if (o->flags & FLAG_BOUNCY)
                        {
                                if (player->yinertia > (o->yinertia - 0x200))
                                        player->yinertia = (o->yinertia - 0x200);
                        }
                        else if (o->yinertia <= player->yinertia)
                        {
                                // snap his Y right on top if it
                                player->y = o->SolidTop() - (sprites[player->sprite].block_d[0].y << CSF);
                        }
                }
        }
}


void PHandleSolidMushyObjects(void)
{
        for(int i=0;i<nOnscreenObjects;i++)
        {
                Object *o = onscreen_objects[i];
                
                if (o->flags & FLAG_SOLID_MUSHY)
                        PRunSolidMushy(o);
        }
}

// handle "solid mushy" objects, such as bugs. These objects are solid but not 100% super
// solid like a brick. Their solidity is more of an "it repels the player" kind of way.
// NOTE: This is also responsible for the horizontal motion you see when hit by many kinds
// of enemies. The hurtplayer damage routine makes you hop vertically, but it is this that
// throws you away horizontally.
void PRunSolidMushy(Object *o)
{
        // cache these, so we're not calling the same functions over and over again
        const int p_left = player->SolidLeft();
        const int p_right = player->SolidRight();
        const int p_top = player->SolidTop();
        const int p_bottom = player->SolidBottom();
        
        const int o_left = o->SolidLeft();
        const int o_right = o->SolidRight();
        const int o_top = o->SolidTop();
        const int o_bottom = o->SolidBottom();
        
        static const int MUSHY_MARGIN = (3<<CSF);
        static const int STAND_MARGIN = (1<<CSF);
        static const int REPEL_FORCE = 0x200;
        
        // hitting sides of object
        if ((p_top < (o_bottom - MUSHY_MARGIN)) && (p_bottom > (o_top + MUSHY_MARGIN)))
        {
                // left side
                if ((p_right > o_left) && (p_right < o->CenterX()))
                {
                        if (player->xinertia > -REPEL_FORCE)
                                player->xinertia -= REPEL_FORCE;
                }
                
                // right side
                if ((p_left < o_right) && (p_left > o->CenterX()))
                {
                        if (player->xinertia < REPEL_FORCE)
                                player->xinertia += REPEL_FORCE;
                }
        }
        
        // bonking head on object or standing on object
        
        // to tell if we are within horizontal bounds to be standing on the object,
        // we will check if we have NOT FALLEN OFF the object.
        if (p_left > (o_right - STAND_MARGIN) || p_right < (o_left + STAND_MARGIN))
        { }
        else
        {
                // standing on object
                if (p_bottom >= o_top && p_bottom <= o->CenterY())
                {
                        if (o->flags & FLAG_BOUNCY)
                        {
                                if (player->yinertia > (o->yinertia - 0x200))
                                        player->yinertia = (o->yinertia - 0x200);
                        }
                        else
                        {
                                // force to top of sprite if we're REALLY far into it
                                int em_fline = o->SolidTop() + (3 << CSF);
                                if (player->SolidBottom() > em_fline)
                                {
                                        int over_amt = (em_fline - player->SolidBottom());
                                        int dec_amt = (3 << CSF);
                                        
                                        if (over_amt < dec_amt) dec_amt = over_amt;
                                        if (dec_amt < (1<<CSF)) dec_amt = (1<<CSF);
                                        
                                        player->apply_yinertia(-dec_amt);
                                }
                                
                                player->blockd = true;
                                player->riding = o;
                        }
                }
                else if (p_top < o_bottom && p_top > o->CenterY())
                {
                        // hit bottom of object with head
                        if (player->yinertia < 0)
                                player->yinertia = 0;
                }
        }
}

/*
void c------------------------------() {}
*/

// does "damage" points of damage to the player
// if even_if_controls_locked is true the damage is
// dealt even if the player's input is locked.
void hurtplayer(int damage)
{
        if (damage == 0) return;
        if (!player || !player->hp) return;
        if (settings->enable_debug_keys && (game.debug.god || inputs[DEBUG_MOVE_KEY])) return;
        
        if (player->hurt_time)
                return;
        
        if (player->hide)
                return;
        
        player->hp -= damage;
        player->DamageText->AddQty(damage);
        
        player->lookaway = 0;
        player->hurt_time = 128;
        
        if (player->equipmask & EQUIP_WHIMSTAR)
                remove_whimstar(&player->whimstar);
        
        //if (player->booststate)
                //player->hitwhileboosting = true;
        
        if (player->hp <= 0)
        {
                sound(SND_PLAYER_DIE);
                SmokeClouds(player, 64, 16, 16);
                
                killplayer(SCRIPT_DIED);
        }
        else
        {
                sound(SND_PLAYER_HURT);
                
                // hop
                if (player->movementmode != MOVEMODE_ZEROG)
                        player->yinertia = -0x400;
        }
        
        // decrement weapon XP.
        if (player->equipmask & EQUIP_ARMS_BARRIER)
                SubXP(damage);
        else
                SubXP(damage * 2);
}

// set the player state to "dead" and execute script "script"
void killplayer(int script)
{
        Replay::end_record();
        Replay::end_playback();
        
        player->hp = 0;
        player->dead = true;
        player->hide = true;
        player->xinertia = 0;
        player->yinertia = 0;
        player->riding = NULL;                  // why exactly did I say this? i dunno, but not touching for safety
        StopLoopSounds();                               // important for Almond
        StartScript(script);
}

/*
void c------------------------------() {}
*/

// this is basically a replacement for most of the player code,
// used when the player is in <UNI0001 (the Ironhead battle).
void PHandleZeroG(void)
{
        if (!player->inputs_locked)
        {
                if (inputs[LEFTKEY] || inputs[RIGHTKEY])
                {
                        if (inputs[LEFTKEY])  player->xinertia -= 0x100;
                        if (inputs[RIGHTKEY]) player->xinertia += 0x100;
                }
                else
                {       // decel
                        if (player->xinertia < 0x80 || player->xinertia > -0x80)
                        {
                                player->xinertia = 0;
                        }
                        else
                        {
                                player->xinertia += (player->xinertia > 0) ? -0x80 : 0x80;
                        }
                }
                
                if (inputs[UPKEY] || inputs[DOWNKEY])
                {
                        if (inputs[UPKEY]) player->yinertia -= 0x100;
                        if (inputs[DOWNKEY]) player->yinertia += 0x100;
                }
                else
                {       // decel
                        if (player->yinertia < 0x80 || player->yinertia > -0x80)
                        {
                                player->yinertia = 0;
                        }
                        else
                        {
                                player->xinertia += (player->xinertia > 0) ? -0x80 : 0x80;
                        }
                }
        }
        else
        {       // decel for when inputs locked after victory
                if (player->xinertia < 0x80 && player->xinertia > -0x40)
                {
                        player->xinertia = 0;
                }
                else
                {
                        player->xinertia += (player->xinertia > 0) ? -0x80 : 0x80;
                }
                
                if (player->yinertia < 0x80 && player->yinertia > -0x40)
                {
                        player->yinertia = 0;
                }
                else
                {
                        player->yinertia += (player->yinertia > 0) ? -0x80 : 0x80;
                }
        }
        
        if (player->xinertia > 0x400)  player->xinertia = 0x400;
        if (player->xinertia < -0x400) player->xinertia = -0x400;
        if (player->yinertia > 0x400)  player->yinertia = 0x400;
        if (player->yinertia < -0x400) player->yinertia = -0x400;
        
        player->frame = (player->yinertia > 0) ? 1 : 2;
}

/*
void c------------------------------() {}
*/

void PInitRepel(void)
{
const int s = SPR_MYCHAR;
int i;

        player->nrepel_l = sprites[s].block_l.count;
        player->nrepel_r = sprites[s].block_r.count;
        player->nrepel_d = sprites[s].block_d.count;
        player->nrepel_u = sprites[s].block_u.count;
        
        for(i=0;i<player->nrepel_l;i++)
        {
                player->repel_l[i].x = sprites[s].block_l[i].x + 1;
                player->repel_l[i].y = sprites[s].block_l[i].y;
        }
        
        for(i=0;i<player->nrepel_r;i++)
        {
                player->repel_r[i].x = sprites[s].block_r[i].x - 1;
                player->repel_r[i].y = sprites[s].block_r[i].y;
        }
        
        for(i=0;i<player->nrepel_d;i++)
        {
                player->repel_d[i].x = sprites[s].block_d[i].x;
                player->repel_d[i].y = sprites[s].block_d[i].y - 1;
        }
        
        for(i=0;i<player->nrepel_u;i++)
        {
                player->repel_u[i].x = sprites[s].block_u[i].x;
                player->repel_u[i].y = sprites[s].block_u[i].y + 1;
        }
}

// the player's block points are assymetrical--block u/d are closer together than block l/r.
// So it's quite possible to get e.g. your blockl points embedded in a wall by
// falling off the top of it. This function implements a SMB1-style "repel" that
// allows this to happen but then pushes the player out of the block over the next
// few frames.
void PDoRepel(void)
{
        // since this function is called from the aftermove, regular player->blockl etc
        // won't be updated until the following frame, so we always check the attributes
        // directly here.
        static const int REPEL_SPEED =  (1<<CSF);
        
        if (settings->enable_debug_keys && inputs[DEBUG_MOVE_KEY])
                return;
        
        // pushes player out of walls if he become embedded in them, ala Super Mario 1.
        // this can happen for example because his R,L block points are further out than
        // his D block points so it's possible to fall really close to a block and
        // embed the R or L points further into the block than they should be
        if (player->CheckAttribute(player->repel_r, player->nrepel_r, TA_SOLID_PLAYER))
        {
                if (!player->CheckAttribute(&sprites[player->sprite].block_l, TA_SOLID_PLAYER))
                {
                        player->x -= REPEL_SPEED;
                        //debug("REPEL [to left]");
                }
        }
        
        if (player->CheckAttribute(player->repel_l, player->nrepel_l, TA_SOLID_PLAYER))
        {
                if (!player->CheckAttribute(&sprites[player->sprite].block_r, TA_SOLID_PLAYER))
                {
                        player->x += REPEL_SPEED;
                        //debug("REPEL [to right]");
                }
        }
        
        // vertical repel doesn't happen normally, but if we get embedded in a
        // block somehow, it can happen.
        /*
        // do repel down
        if (player->CheckAttribute(player->repel_u, player->nrepel_u, TA_SOLID_PLAYER))
        {
                if (!player->CheckAttribute(&sprites[player->sprite].block_d, TA_SOLID_PLAYER))
                {
                        player->y += REPEL_SPEED;
                        //debug("REPEL [down]");
                }
        }
        
        // do repel up
        if (player->CheckAttribute(player->repel_d, player->nrepel_d, TA_SOLID_PLAYER))
        {
                if (!player->CheckAttribute(&sprites[player->sprite].block_u, TA_SOLID_PLAYER))
                {
                        player->y -= REPEL_SPEED;
                        //debug("REPEL [up]");
                }
        }
        */
}

/*
void c------------------------------() {}
*/

// called when you press down.
// Tries to find an SCRIPTONACTIVATE object you are standing near and activate it.
// if it can't find anything to activate, spawns the "question mark" effect.
void PTryActivateScript()
{
        if (RunScriptAtX(player->CenterX()))
                return;
        
        if (player->dir == RIGHT)
        {
                if (RunScriptAtX(player->Right()) || RunScriptAtX(player->Left()))
                        return;
        }
        else
        {
                if (RunScriptAtX(player->Left()) || RunScriptAtX(player->Right()))
                        return;
        }
        
        // e.g. Plantation Rocket
        if (player->riding && (player->riding->flags & FLAG_SCRIPTONACTIVATE))
        {
                StartScript(player->riding->id2);
                return;
        }
        
        effect(player->CenterX(), player->CenterY(), EFFECT_QMARK);
}

static bool RunScriptAtX(int x)
{
        if (RunScriptAtLocation(x, player->y + (8 << CSF)) || \
                RunScriptAtLocation(x, player->y + (14 << CSF)) || \
                RunScriptAtLocation(x, player->y + (2 << CSF)))
        {
                return true;
        }
        
        return false;
}

static bool RunScriptAtLocation(int x, int y)
{
        // top-to-bottom scan
        for(int i=nOnscreenObjects-1; i>=0; i--)
        {
                Object *o = onscreen_objects[i];
                
                if (o->flags & FLAG_SCRIPTONACTIVATE)
                {
                        if (x >= o->Left() && x <= o->Right() && \
                                y >= o->Top() && y <= o->Bottom())
                        {
                                StartScript(o->id2);
                                return true;
                        }
                }
        }
        
        return false;
}

/*
void c------------------------------() {}
*/

// does the invincibility flash when the player has recently been hurt
void PDoHurtFlash(void)
{
        // note that hurt_flash_state is NOT cleared when timer reaches 0,
        // but this is ok because the number of blinks are and always should be even.
        // (if not it wouldn't look right when he unhurts).
        if (player->hurt_time)
        {
                player->hurt_time--;
                player->hurt_flash_state = (player->hurt_time & 2);
        }
}

// decides which player frame to show
void PSelectFrame(void)
{
        if (player->lookaway)
        {       // looking away
                player->frame = 11;
        }
        else if (!player->blockd || player->yinertia < 0)
        {       // jumping/falling
                player->frame = (player->yinertia > 0) ? 1 : 2;
        }
        else if (player->walking)
        {       // do walk animation
                static const uint8_t pwalkanimframes[] = { 0, 1, 0, 2 };
                
                if (++player->walkanimtimer >= 5)
                {
                        player->walkanimtimer = 0;
                        if (++player->walkanimframe >= 4) player->walkanimframe = 0;
                        if (pwalkanimframes[player->walkanimframe]==0) sound(SND_PLAYER_WALK);
                }
                
                player->frame = pwalkanimframes[player->walkanimframe];
        }
        else
        {       // standing
                player->frame = 0;
        }
        
        // switch frames to "up" or "down" versions if we're looking
        if (player->look)
        {
                if (player->look == UP)
                {
                        if (!player->blockd || player->yinertia < 0)
                                player->frame = 4;
                        else
                                player->frame += 3;
                }
                else
                {
                        player->frame += 6;
                }
        }
        
        // mimiga mask support-- it would be better to make equipmask private,
        // and funnel all player->equipmask changes through a setter function,
        // then I'd feel safe doing this only when equipped items are changed.
        PSelectSprite();
}

// mimiga mask support
void PSelectSprite(void)
{
        player->sprite = (player->equipmask & EQUIP_MIMIGA_MASK) ? \
                                        SPR_MYCHAR_MIMIGA : SPR_MYCHAR;
}

/*
void c------------------------------() {}
*/


// returns the sprite and frame # to be used for drawing the given weapon
void GetSpriteForGun(int wpn, int look, int *spr, int *frame)
{
int s;
        
        switch(wpn)
        {
                case WPN_SUPER_MISSILE: s = SPR_SUPER_MLAUNCHER; break;
                case WPN_NEMESIS: s = SPR_NEMESIS; break;
                case WPN_BUBBLER: s = SPR_BUBBLER; break;
                case WPN_SPUR: s = SPR_SPUR; break;
                
                default:
                        s = SPR_WEAPONS_START + (wpn * 2);
                break;
        }
        
        if (look)
        {
                s++;
                *frame = (look == DOWN);
        }
        else
        {
                *frame = 0;
        }
        
        *spr = s;
}


// returns the point that a player's shot should be centered on when firing
void GetPlayerShootPoint(int *x_out, int *y_out)
{
int spr, frame;
int x, y;

        GetSpriteForGun(player->curWeapon, player->look, &spr, &frame);
        
        // we have to figure out where the gun is being carried, then figure out where the
        // gun's sprite is drawn relative to that, then finally we can offset in the
        // shoot point of the gun's sprite.
        x = player->x + (sprites[player->sprite].frame[player->frame].dir[player->dir].actionpoint.x << CSF);
        x -= sprites[spr].frame[frame].dir[player->dir].drawpoint.x << CSF;
        x += sprites[spr].frame[frame].dir[player->dir].actionpoint.x << CSF;
        
        y = player->y + (sprites[player->sprite].frame[player->frame].dir[player->dir].actionpoint.y << CSF);
        y -= sprites[spr].frame[frame].dir[player->dir].drawpoint.y << CSF;
        y += sprites[spr].frame[frame].dir[player->dir].actionpoint.y << CSF;
        
        *x_out = x;
        *y_out = y;
}

// draws the player
void DrawPlayer(void)
{
int scr_x, scr_y;

        if (player->hide || player->disabled)
                return;
        
        // keep his floattext position linked--do NOT update this if he is hidden
        // so that floattext doesn't follow him after he dies.
        player->DamageText->UpdatePos(player);
        player->XPText->UpdatePos(player);
        
        // get screen position to draw him at
        scr_x = (player->x >> CSF) - (map.displayed_xscroll >> CSF);
        scr_y = (player->y >> CSF) - (map.displayed_yscroll >> CSF);
        
        // draw his gun
        if (player->curWeapon != WPN_NONE && player->curWeapon != WPN_BLADE)
        {
                int spr, frame;
                GetSpriteForGun(player->curWeapon, player->look, &spr, &frame);
                
                // draw the gun at the player's Action Point. Since guns have their Draw Point set
                // to point at their handle, this places the handle in the player's hand.
                draw_sprite_at_dp(scr_x + sprites[player->sprite].frame[player->frame].dir[player->dir].actionpoint.x, \
                                                  scr_y + sprites[player->sprite].frame[player->frame].dir[player->dir].actionpoint.y, \
                                                  spr, frame, player->dir);
        }
        
        // draw the player sprite
        if (!player->hurt_flash_state)
        {
                draw_sprite(scr_x, scr_y, player->sprite, player->frame, player->dir);
                
                // draw the air bubble shield if we have it on
                if (((player->touchattr & TA_WATER) && (player->equipmask & EQUIP_AIRTANK)) || \
                        player->movementmode == MOVEMODE_ZEROG)
                {
                        draw_sprite_at_dp(scr_x, scr_y, SPR_WATER_SHIELD, \
                                                          player->water_shield_frame, player->dir);
                        
                        if (++player->water_shield_timer > 1)
                        {
                                player->water_shield_frame ^= 1;
                                player->water_shield_timer = 0;
                        }
                }
        }
        
        if (player->equipmask & EQUIP_WHIMSTAR)
                draw_whimstars(&player->whimstar);
}