src/SignManager.cxx

   1 /*
   2  * SignManager.cxx
   3  * Daniel Nelson - 9/14/0
   4  *
   5  * Copyright (C) 2000  Daniel Nelson
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20  *
  21  * Daniel Nelson - aluminumangel.org
  22  * 174 W. 18th Ave.
  23  * Columbus, OH  43210
  24  *
  25  * Handles all the little reward signs.
  26  */
  27
  28 using namespace std;
  29
  30 #include "Game.h"
  31 #include "SignManager.h"
  32 #include "Random.h"
  33
  34 int SignManager::sign_count;
  35 Sign SignManager::signs[DC_MAX_SIGN_NUMBER];
  36
  37 // maximum levels for each sign type
  38 const int maximum_levels[3]
  39  = { 8, 10, 8 };
  40
  41 // which sign texture contains which signs
  42 const int texture_mapping[3][11]
  43  = { { 0, 0, 0, 0, 0, 0, 1, 1, 1 },
  44      { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
  45      { 1, 1, 1, 1, 1, 1, 1, 1, 1 } };
  46
  47 // where a sign's subtexture is located
  48 const GLfloat subtexture_s_mapping[3][11]
  49  = { { 0.0f, 0.0f, DC_SIGN_SMALL_SUBTEX_COORD_S, DC_SIGN_SMALL_SUBTEX_COORD_S,
  50        2.0f * DC_SIGN_SMALL_SUBTEX_COORD_S, 2.0f * DC_SIGN_SMALL_SUBTEX_COORD_S,
  51        0.0f, 0.0f, 0.0f },
  52      { 0.0f, 1.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  53        DC_SIGN_LARGE_SUBTEX_COORD_S, DC_SIGN_LARGE_SUBTEX_COORD_S,
  54        DC_SIGN_LARGE_SUBTEX_COORD_S, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  55        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  56        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  57        3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S },
  58      { 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  59        3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  60        3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  61        3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  62        3.0f * DC_SIGN_LARGE_SUBTEX_COORD_S } };
  63 const GLfloat subtexture_t_mapping[3][11]
  64  = { { 0.0f, DC_SIGN_SMALL_SUBTEX_COORD_T, 0.0f, DC_SIGN_SMALL_SUBTEX_COORD_T,
  65        0.0f, DC_SIGN_SMALL_SUBTEX_COORD_T, 0.0f, DC_SIGN_LARGE_SUBTEX_COORD_T,
  66        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_T },
  67      { 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_T, 0.0f, DC_SIGN_LARGE_SUBTEX_COORD_T,
  68        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_T, 3.0f * DC_SIGN_LARGE_SUBTEX_COORD_T,
  69        0.0f, DC_SIGN_LARGE_SUBTEX_COORD_T, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_T,
  70        3.0f * DC_SIGN_LARGE_SUBTEX_COORD_T, 0.0f,
  71        DC_SIGN_LARGE_SUBTEX_COORD_T },
  72      { 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  73        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  74        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  75        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S, 2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S,
  76        2.0f * DC_SIGN_LARGE_SUBTEX_COORD_S } };
  77
  78 void SignManager::initialize (   )
  79 {
  80   sign_count = 0;
  81   for (int n = DC_MAX_SIGN_NUMBER; n--; )
  82     signs[n].active = false;
  83 }
  84
  85 void SignManager::createSign ( int x, int y, int type, int level )
  86 {
  87   if (sign_count == DC_MAX_SIGN_NUMBER) return;
  88
  89   int n;
  90   for (n = 0; signs[n].active; n++);
  91   Sign &sign = signs[n];
  92
  93   if (type == ST_MULTIPLIER) {
  94     sign.g_x = x + 1;
  95     sign.g_y = y - 1;
  96     if (!confirmSignLocation(signs[n]))
  97       if (sign.g_x > 1)
  98         sign.g_x--;
  99       else
 100         sign.g_y++;
 101
 102   } else {
 103     sign.g_x = x;
 104     sign.g_y = y;
 105     if (!confirmSignLocation(sign))
 106       if (sign.g_x < GC_PLAY_WIDTH - 1)
 107         sign.g_x++;
 108       else
 109         sign.g_y++;
 110   }
 111
 112   while (!confirmSignLocation(sign))
 113     sign.g_y++;
 114
 115   sign.x = sign.g_x * DC_GRID_ELEMENT_LENGTH
 116    + (DC_PLAY_OFFSET_X + DC_SIGN_OFFSET_X - DC_SIGN_OFFSET_SPREAD)
 117    + (2 * DC_SIGN_OFFSET_SPREAD) * Random::number();
 118   sign.y = sign.g_y * DC_GRID_ELEMENT_LENGTH
 119    + Displayer::play_offset_y + (DC_SIGN_OFFSET_Y - DC_SIGN_OFFSET_SPREAD)
 120    + (2 * DC_SIGN_OFFSET_SPREAD) * Random::number();
 121
 122   if (level > maximum_levels[type])
 123     level = maximum_levels[type];
 124
 125   sign.texture = texture_mapping[type][level];
 126   sign.subtexture_s = subtexture_s_mapping[type][level];
 127   sign.subtexture_t = subtexture_t_mapping[type][level];
 128
 129   if (type != ST_SPECIAL)
 130     sign.color = 0;
 131   else
 132     sign.color = level;
 133
 134   sign.life_time = 0;
 135
 136   sign_count++;
 137   sign.active = true;
 138 }
 139
 140 void SignManager::timeStep_inline_split_ (   )
 141 {
 142   int c = sign_count;
 143   for (int n = 0; c; n++)
 144     if (signs[n].active) {
 145       Sign &sign = signs[n];
 146       c--;
 147
 148       if (++sign.life_time == DC_SIGN_LIFE_TIME) {
 149         sign_count--;
 150         sign.active = false;
 151       }
 152
 153       if (sign.life_time < DC_SIGN_ACCELERATION_TIME)
 154         sign.y += DC_SIGN_ACCELERATION * sign.life_time;
 155
 156       else
 157         sign.y += DC_SIGN_TERMINAL_VELOCITY;
 158     }
 159 }
 160