mummy.lua

   1 local S = minetest.get_translator("tsm_pyramids")
   2
   3 local mummy_walk_limit = 1
   4 local mummy_chillaxin_speed = 1
   5 local mummy_animation_speed = 10
   6 -- Note: This is currently broken due to a bug in Irrlicht, leave at 0
   7 local mummy_animation_blend = 0
   8
   9 -- Default player appearance
  10 local mummy_mesh = "tsm_pyramids_mummy.x"
  11 local mummy_texture = {"tsm_pyramids_mummy.png"}
  12 local mummy_hp = 20
  13 local mummy_drop = "default:papyrus"
  14
  15 local sound_normal = "mummy"
  16 local sound_hit = "mummy_hurt"
  17 local sound_dead = "mummy_death"
  18
  19 local spawner_check_range = 17
  20 local spawner_max_mobs = 6
  21
  22 local function get_animations()
  23         return {
  24                 stand_START = 74,
  25                 stand_END = 74,
  26                 sit_START = 81,
  27                 sit_END = 160,
  28                 lay_START = 162,
  29                 lay_END = 166,
  30                 walk_START = 74,
  31                 walk_END = 105,
  32                 mine_START = 74,
  33                 mine_END = 105,
  34                 walk_mine_START = 74,
  35                 walk_mine_END = 105
  36         }
  37 end
  38
  39 local npc_model = {}
  40 local npc_anim = {}
  41 local npc_sneak = {}
  42 local ANIM_STAND = 1
  43 local ANIM_SIT = 2
  44 local ANIM_LAY = 3
  45 local ANIM_WALK  = 4
  46 local ANIM_WALK_MINE = 5
  47 local ANIM_MINE = 6
  48
  49 local function hit(self)
  50         local prop = {
  51                 mesh = mummy_mesh,
  52                 textures = {"tsm_pyramids_mummy.png^tsm_pyramids_hit.png"},
  53         }
  54         self.object:set_properties(prop)
  55         minetest.after(0.4, function(self)
  56                 local prop = {textures = mummy_texture,}
  57                 if self ~= nil and self.object ~= nil then
  58                         self.object:set_properties(prop)
  59                 end
  60         end, self)
  61 end
  62
  63 local function mummy_update_visuals_def(self)
  64         npc_anim = 0 -- Animation will be set further below immediately
  65         local prop = {
  66                 mesh = mummy_mesh,
  67                 textures = mummy_texture,
  68         }
  69         self.object:set_properties(prop)
  70 end
  71
  72 local MUMMY_DEF = {
  73         hp_max = mummy_hp,
  74         physical = true,
  75         collisionbox = {-0.4, -0.01, -0.4, 0.4, 1.9, 0.4},
  76         visual = "mesh",
  77         visual_size = {x=8,y=8},
  78         mesh = mummy_mesh,
  79         textures = mummy_texture,
  80         makes_footstep_sound = true,
  81         npc_anim = 0,
  82         timer = 0,
  83         turn_timer = 0,
  84         vec = 0,
  85         yaw = 0,
  86         yawwer = 0,
  87         state = 1,
  88         jump_timer = 0,
  89         punch_timer = 0,
  90         sound_timer = 0,
  91         envdmg_timer = 0,
  92         attacker = "",
  93         attacking_timer = 0,
  94 }
  95
  96 local spawner_DEF = {
  97         hp_max = 1,
  98         physical = false,
  99         pointable = false,
 100         visual = "mesh",
 101         visual_size = {x=3.3,y=3.3},
 102         mesh = mummy_mesh,
 103         textures = mummy_texture,
 104         makes_footstep_sound = false,
 105         timer = 0,
 106         automatic_rotate = math.pi * 2.9,
 107 }
 108
 109 spawner_DEF.on_activate = function(self)
 110         mummy_update_visuals_def(self)
 111         self.object:set_velocity({x=0, y=0, z=0})
 112         self.object:set_acceleration({x=0, y=0, z=0})
 113         self.object:set_armor_groups({immortal=1})
 114
 115 end
 116
 117 spawner_DEF.on_step = function(self, dtime)
 118         self.timer = self.timer + 0.01
 119         local n = minetest.get_node_or_nil(self.object:get_pos())
 120         if self.timer > 1 then
 121                 if n and n.name and n.name ~= "tsm_pyramids:spawner_mummy" then
 122                         self.object:remove()
 123                 end
 124         end
 125 end
 126
 127 spawner_DEF.on_punch = function(self, hitter)
 128
 129 end
 130
 131 MUMMY_DEF.on_activate = function(self)
 132         mummy_update_visuals_def(self)
 133         self.anim = get_animations()
 134         self.object:set_animation({x=self.anim.stand_START,y=self.anim.stand_END}, mummy_animation_speed, mummy_animation_blend)
 135         self.npc_anim = ANIM_STAND
 136         self.object:set_acceleration({x=0,y=-20,z=0})--20
 137         self.state = 1
 138         self.object:set_hp(mummy_hp)
 139         self.object:set_armor_groups({fleshy=130})
 140 end
 141
 142 MUMMY_DEF.on_punch = function(self, puncher, time_from_last_punch, tool_capabilities, dir)
 143
 144         self.attacker = puncher
 145
 146         if puncher ~= nil then
 147                 minetest.sound_play(sound_hit, {pos = self.object:get_pos(), loop = false, max_hear_distance = 10, gain = 0.4})
 148                 if time_from_last_punch >= 0.45 then
 149                         hit(self)
 150                         self.direction = {x=self.object:get_velocity().x, y=self.object:get_velocity().y, z=self.object:get_velocity().z}
 151                         self.punch_timer = 0
 152                         self.object:set_velocity({x=dir.x*mummy_chillaxin_speed,y=5,z=dir.z*mummy_chillaxin_speed})
 153                         if self.state == 1 then
 154                                 self.state = 8
 155                         elseif self.state >= 2 then
 156                                 self.state = 9
 157                         end
 158                 end
 159         end
 160 end
 161
 162 MUMMY_DEF.on_death = function(self, killer)
 163         minetest.sound_play(sound_dead, {pos = self.object:get_pos(), max_hear_distance = 10 , gain = 0.3})
 164         -- Drop item on death
 165         local count = math.random(0,3)
 166         if count > 0 then
 167                 local pos = self.object:get_pos()
 168                 pos.y = pos.y + 1.0
 169                 minetest.add_item(pos, mummy_drop .. " " .. count)
 170         end
 171 end
 172
 173         local cnt1 = 0
 174         local cnt2 = 0
 175
 176 MUMMY_DEF.on_step = function(self, dtime)
 177         self.timer = self.timer + 0.01
 178         self.turn_timer = self.turn_timer + 0.01
 179         self.jump_timer = self.jump_timer + 0.01
 180         self.punch_timer = self.punch_timer + 0.01
 181         self.attacking_timer = self.attacking_timer + 0.01
 182         self.sound_timer = self.sound_timer + dtime + 0.01
 183
 184         local current_pos = self.object:get_pos()
 185         local current_node = minetest.get_node(current_pos)
 186         if self.time_passed == nil then
 187                 self.time_passed = 0
 188         end
 189
 190         local def = minetest.registered_nodes[current_node.name]
 191         local dps = def.damage_per_second
 192         local dmg = 0
 193         if dps ~= nil and dps > 0 then
 194                 dmg = dps
 195         end
 196         -- Damage from node
 197         if dmg < 4 and (minetest.get_item_group(current_node.name, "water") ~= 0 or minetest.get_item_group(current_node.name, "lava") ~= 0) then
 198                 dmg = 4
 199         end
 200         -- Damage by suffocation
 201         if (def.walkable == nil or def.walkable == true)
 202         and (def.drowning == nil or def.drowning == 0)
 203         and (def.damage_per_second == nil or def.damage_per_second <= 0)
 204         and (def.collision_box == nil or def.collision_box.type == "regular")
 205         and (def.node_box == nil or def.node_box.type == "regular")
 206         and (def.groups and def.groups.disable_suffocation ~= 1) then
 207                 dmg = dmg + 1
 208         end
 209         self.envdmg_timer = self.envdmg_timer + dtime
 210         if dmg > 0 then
 211                 if self.envdmg_timer >= 1 then
 212                         self.envdmg_timer = 0
 213                         self.object:set_hp(self.object:get_hp()-dmg)
 214                         hit(self)
 215                         self.sound_timer = 0
 216                         minetest.sound_play(sound_hit, {pos = current_pos, max_hear_distance = 10, gain = 0.4})
 217                 end
 218          else
 219                 self.time_passed = 0
 220          end
 221
 222         --update moving state every 1 or 2 seconds
 223         if self.state < 3 then
 224                 if self.timer > math.random(1,2) then
 225                         if self.attacker == "" then
 226                                 self.state = math.random(1,2)
 227                         else self.state = 1 end
 228                         self.timer = 0
 229                 end
 230         end
 231
 232         --play sound
 233         if self.sound_timer > math.random(5,35) then
 234                 minetest.sound_play(sound_normal, {pos = current_pos, max_hear_distance = 10, gain = 0.2})
 235                 self.sound_timer = 0
 236         end
 237
 238         --after punched
 239         if self.state >= 8 then
 240                 if self.punch_timer > 0.15 then
 241                         if self.state == 9 then
 242                                 self.object:set_velocity({x=self.direction.x*mummy_chillaxin_speed,y=-20,z=self.direction.z*mummy_chillaxin_speed})
 243                                 self.state = 2
 244                         elseif self.state == 8 then
 245                                 self.object:set_velocity({x=0,y=-20,z=0})
 246                                 self.state = 1
 247                         end
 248                 end
 249         end
 250
 251         --STANDING
 252         if self.state == 1 then
 253                 self.yawwer = true
 254                 self.attacker = ""
 255                 for  _,object in ipairs(minetest.get_objects_inside_radius(self.object:get_pos(), 4)) do
 256                         if object:is_player() then
 257                                 self.yawwer = false
 258                                 local NPC = self.object:get_pos()
 259                                 local PLAYER = object:get_pos()
 260                                 self.vec = {x=PLAYER.x-NPC.x, y=PLAYER.y-NPC.y, z=PLAYER.z-NPC.z}
 261                                 self.yaw = math.atan(self.vec.z/self.vec.x)+math.pi^2
 262                                 if PLAYER.x > NPC.x then
 263                                         self.yaw = self.yaw + math.pi
 264                                 end
 265                                 self.yaw = self.yaw - 2
 266                                 self.object:set_yaw(self.yaw)
 267                                 self.attacker = object
 268                         end
 269                 end
 270
 271                 if self.attacker == "" and self.turn_timer > math.random(1,4) then
 272                         self.yaw = 360 * math.random()
 273                         self.object:set_yaw(self.yaw)
 274                         self.turn_timer = 0
 275                         self.direction = {x = math.sin(self.yaw)*-1, y = -20, z = math.cos(self.yaw)}
 276                 end
 277                 self.object:set_velocity({x=0,y=self.object:get_velocity().y,z=0})
 278                 if self.npc_anim ~= ANIM_STAND then
 279                         self.anim = get_animations()
 280                         self.object:set_animation({x=self.anim.stand_START,y=self.anim.stand_END}, mummy_animation_speed, mummy_animation_blend)
 281                         self.npc_anim = ANIM_STAND
 282                 end
 283                 if self.attacker ~= "" then
 284                         self.direction = {x = math.sin(self.yaw)*-1, y = -20, z = math.cos(self.yaw)}
 285                         self.state = 2
 286                 end
 287         end
 288         --WALKING
 289         if self.state == 2 then
 290
 291                 if self.direction ~= nil then
 292                         self.object:set_velocity({x=self.direction.x*mummy_chillaxin_speed,y=self.object:get_velocity().y,z=self.direction.z*mummy_chillaxin_speed})
 293                 end
 294                 if self.turn_timer > math.random(1,4) and not self.attacker then
 295                         self.yaw = 360 * math.random()
 296                         self.object:set_yaw(self.yaw)
 297                         self.turn_timer = 0
 298                         self.direction = {x = math.sin(self.yaw)*-1, y = -20, z = math.cos(self.yaw)}
 299                 end
 300                 if self.npc_anim ~= ANIM_WALK then
 301                         self.anim = get_animations()
 302                         self.object:set_animation({x=self.anim.walk_START,y=self.anim.walk_END}, mummy_animation_speed, mummy_animation_blend)
 303                         self.npc_anim = ANIM_WALK
 304                 end
 305
 306                 if self.attacker ~= "" and minetest.settings:get_bool("enable_damage") then
 307                         local s = self.object:get_pos()
 308                         local p = self.attacker:get_pos()
 309                         if (s ~= nil and p ~= nil) then
 310                                 local dist = ((p.x-s.x)^2 + (p.y-s.y)^2 + (p.z-s.z)^2)^0.5
 311
 312                                 if dist < 2 and self.attacking_timer > 0.6 then
 313                                 self.attacker:punch(self.object, 1.0,  {
 314                                         full_punch_interval=1.0,
 315                                         damage_groups = {fleshy=1}
 316                                 })
 317                                         self.attacking_timer = 0
 318                                 end
 319                         end
 320                 end
 321         end
 322 end
 323
 324 minetest.register_entity("tsm_pyramids:mummy", MUMMY_DEF)
 325 minetest.register_entity("tsm_pyramids:mummy_spawner", spawner_DEF)
 326
 327
 328 --spawn-egg/spawner
 329
 330 minetest.register_craftitem("tsm_pyramids:spawn_egg", {
 331         description = S("Mummy Spawn Egg"),
 332         _doc_items_longdesc = S("Can be used to create a hostile mummy."),
 333         _doc_items_usagehelp = S("Place the egg to create a mummy on this spot. Careful, it will probably attack immediately!"),
 334         inventory_image = "tsm_pyramids_mummy_egg.png",
 335         liquids_pointable = false,
 336         stack_max = 99,
 337         on_place = function(itemstack, placer, pointed_thing)
 338                 if pointed_thing.type == "node" then
 339                         minetest.add_entity(pointed_thing.above,"tsm_pyramids:mummy")
 340                         if not minetest.settings:get_bool("creative_mode") then itemstack:take_item() end
 341                         return itemstack
 342                 end
 343         end,
 344
 345 })
 346
 347 -- Spawn a mummy at position
 348 function tsm_pyramids.spawn_mummy_at(pos, number)
 349         local node = minetest.get_node(pos)
 350         if node.name ~= "air" then
 351                 return
 352         end
 353         for _=1, number do
 354                 minetest.add_entity(pos,"tsm_pyramids:mummy")
 355         end
 356 end
 357
 358 local spawnersounds
 359 if default.node_sound_metal_defaults then
 360         spawnersounds = default.node_sound_metal_defaults()
 361 else
 362         spawnersounds = default.node_sound_stone_defaults()
 363 end
 364
 365 minetest.register_node("tsm_pyramids:spawner_mummy", {
 366         description = S("Mummy Spawner"),
 367         _doc_items_longdesc = S("A mummy spawner causes hostile mummies to appear in its vicinity as long it exists."),
 368         paramtype = "light",
 369         tiles = {"tsm_pyramids_spawner.png"},
 370         is_ground_content = false,
 371         drawtype = "allfaces",
 372         groups = {cracky=1,level=1},
 373         drop = "",
 374         on_construct = function(pos)
 375                 pos.y = pos.y - 0.28
 376                 minetest.add_entity(pos,"tsm_pyramids:mummy_spawner")
 377         end,
 378         on_destruct = function(pos)
 379                 for  _,obj in ipairs(minetest.get_objects_inside_radius(pos, 1)) do
 380                         if not obj:is_player() then
 381                                 if obj ~= nil and obj:get_luaentity().name == "tsm_pyramids:mummy_spawner" then
 382                                         obj:remove()
 383                                 end
 384                         end
 385                 end
 386         end,
 387         sounds = spawnersounds,
 388 })
 389
 390 -- Attempt to spawn a mummy at a random appropriate position around pos.
 391 -- Criteria:
 392 -- * Must be close to pos
 393 -- * Not in sunlight
 394 -- * Must be air on top of a non-air block
 395 -- * No more than 6 mummies in area
 396 -- * Player must be near is player_near_required is true
 397 function tsm_pyramids.attempt_mummy_spawn(pos, player_near_required)
 398         local player_near = false
 399         local mobs = 0
 400         for  _,obj in ipairs(minetest.get_objects_inside_radius(pos, spawner_check_range)) do
 401                 if obj:is_player() then
 402                         player_near = true
 403                 else
 404                         if obj:get_luaentity() and obj:get_luaentity().name == "tsm_pyramids:mummy" then
 405                                 mobs = mobs + 1
 406                         end
 407                 end
 408         end
 409         if player_near or (not player_near_required) then
 410                 if mobs < spawner_max_mobs then
 411                         local offset = {x=5,y=2,z=5}
 412                         local nposses = minetest.find_nodes_in_area(vector.subtract(pos, offset), vector.add(pos,offset), "air")
 413                         local tries = math.min(6, #nposses)
 414                         for i=1, tries do
 415                                 local r = math.random(1, #nposses)
 416                                 local npos = nposses[r]
 417                                 -- Check if mummy has 2 nodes of free space
 418                                 local two_space = false
 419                                 -- Check if mummy has something to walk on
 420                                 local footing = false
 421                                 -- Find the lowest node
 422                                 for y=-1, -5, -1 do
 423                                         npos.y = npos.y - 1
 424                                         local below = minetest.get_node(npos)
 425                                         if below.name ~= "air" then
 426                                                 if y < -1 then
 427                                                         two_space = true
 428                                                 end
 429                                                 npos.y = npos.y + 1
 430                                                 footing = true
 431                                                 break
 432                                         end
 433                                 end
 434                                 local light = minetest.get_node_light(npos, 0.5)
 435                                 if not two_space then
 436                                         local above = minetest.get_node({x=npos.x, y=npos.y+1, z=npos.z})
 437                                         if above.name == "air" then
 438                                                 two_space = true
 439                                         end
 440                                 end
 441                                 if footing and two_space and light < 15 then
 442                                         tsm_pyramids.spawn_mummy_at(npos, 1)
 443                                         break
 444                                 else
 445                                         table.remove(nposses, r)
 446                                 end
 447                         end
 448                 end
 449         end
 450 end
 451
 452 if not minetest.settings:get_bool("only_peaceful_mobs") then
 453         minetest.register_abm({
 454                 nodenames = {"tsm_pyramids:spawner_mummy"},
 455                 interval = 2.0,
 456                 chance = 20,
 457                 action = function(pos, node, active_object_count, active_object_count_wider)
 458                         tsm_pyramids.attempt_mummy_spawn(pos, true)
 459                 end,
 460         })
 461 end
 462
 463 if minetest.get_modpath("awards") then
 464         awards.register_achievement("tsm_pyramids_no_mummy_spawner", {
 465                 title = S("No more mummies!"),
 466                 description = S("Destroy a mummy spawner by digging."),
 467                 secret = true,
 468                 icon = "tsm_pyramids_spawner.png",
 469                 trigger = {
 470                         type = "dig",
 471                         node = "tsm_pyramids:spawner_mummy",
 472                         target = 1
 473                 }
 474         })
 475 end