mods/mob/init.lua

   1 --this is where mobs are defined
   2
   3 --this is going to be used to set an active mob limit
   4 global_mob_table = {}
   5
   6
   7 local path = minetest.get_modpath(minetest.get_current_modname())
   8
   9 dofile(path.."/spawning.lua")
  10 dofile(path.."/items.lua")
  11
  12
  13 --these are helpers to create entities
  14 pig = {}
  15
  16
  17
  18 pig.initial_properties = {
  19         hp_max = 1,
  20         physical = true,
  21         collide_with_objects = false,
  22         collisionbox = {-0.37, -0.4, -0.37, 0.37, 0.5, 0.37},
  23         visual = "mesh",
  24         visual_size = {x = 3, y = 3},
  25         mesh = "pig.x",
  26         textures = {
  27                 "body.png","leg.png","leg.png","leg.png","leg.png"
  28         },
  29         is_visible = true,
  30         pointable = true,
  31         automatic_face_movement_dir = -90.0,
  32         automatic_face_movement_max_rotation_per_sec = 300,
  33         --makes_footstep_sound = true,
  34 }
  35
  36 pig.hp = 5
  37 pig.speed = 5
  38 pig.jump_timer = 0
  39
  40 pig.death_animation_timer = 0
  41
  42 pig.mob = true
  43 pig.hostile = false
  44 pig.hostile_timer = 0
  45 pig.timer = 0
  46
  47 pig.state = 0
  48 pig.hunger = 200
  49 pig.view_distance = 20
  50
  51 pig.punch_timer = 0
  52 pig.punched_timer = 0
  53
  54
  55 --head stuff
  56 pig.head_mount = vector.new(0,1.2,1.9)
  57
  58 dofile(path.."/chatcommands.lua")
  59 dofile(path.."/timers.lua")
  60 dofile(path.."/head_code.lua")
  61 dofile(path.."/movement_code.lua")
  62 dofile(path.."/data_handling_code.lua")
  63 dofile(path.."/interaction_code.lua")
  64
  65
  66 ----------------------------------
  67
  68
  69 --repel from players
  70 pig.push = function(self)
  71         local pos = self.object:getpos()
  72         local radius = 1
  73         for _,object in ipairs(minetest.get_objects_inside_radius(pos, radius)) do
  74                 if object:is_player() or object:get_luaentity().mob == true then
  75                         local player_pos = object:getpos()
  76                         pos.y = 0
  77                         player_pos.y = 0
  78
  79                         local currentvel = self.object:getvelocity()
  80                         local vel = vector.subtract(pos, player_pos)
  81                         vel = vector.normalize(vel)
  82                         local distance = vector.distance(pos,player_pos)
  83                         distance = (radius-distance)*10
  84                         vel = vector.multiply(vel,distance)
  85                         local acceleration = vector.new(vel.x-currentvel.x,0,vel.z-currentvel.z)
  86
  87
  88                         self.object:add_velocity(acceleration)
  89
  90                         acceleration = vector.multiply(acceleration, 5)
  91                         object:add_player_velocity(acceleration)
  92                 end
  93         end
  94 end
  95
  96 --sets the mob animation and speed
  97 pig.set_animation = function(self)
  98         if self.speed == 0 or vector.equals(self.direction,vector.new(0,0,0)) then
  99                 self.object:set_animation({x=0,y=0}, 1, 0, true)
 100         else
 101                 self.object:set_animation({x=5,y=15}, 1, 0, true)
 102                 local speed = self.object:get_velocity()
 103                 speed.y = 0
 104                 self.object:set_animation_frame_speed(vector.distance(vector.new(0,0,0),speed)*5)
 105         end
 106 end
 107
 108 --this depletes the mobs hunger
 109 pig.do_hunger = function(self,dtime)
 110         self.hunger = self.hunger - dtime
 111 end
 112
 113 --this sets the state of the mob
 114 pig.set_state = function(self,dtime)
 115         self.do_hunger(self,dtime)
 116 end
 117
 118 pig.on_step = function(self, dtime)
 119         self.manage_death_animation(self,dtime)
 120         if self.death_animation_timer == 0 then
 121                 self.set_state(self,dtime)
 122                 self.move(self,dtime)
 123                 self.set_animation(self)
 124                 self.look_around(self,dtime)
 125                 self.manage_punch_timer(self,dtime)
 126                 pig.debug_nametag(self,dtime)
 127         end
 128 end
 129
 130 minetest.register_entity("mob:pig", pig)
 131
 132
 133
 134
 135
 136 ------------------------------------------------------------------------the head
 137
 138 pig.head = {}
 139 pig.head.initial_properties = {
 140         hp_max = 1,
 141         physical = false,
 142         collide_with_objects = false,
 143         collisionbox = {0, 0, 0, 0, 0, 0},
 144         visual = "mesh",
 145         visual_size = {x = 1.1, y = 1.1},
 146         mesh = "pig_head.x",
 147         textures = {
 148                 "head.png","nose.png"
 149         },
 150         is_visible = true,
 151         pointable = false,
 152         --automatic_face_movement_dir = 0.0,
 153         --automatic_face_movement_max_rotation_per_sec = 600,
 154 }
 155
 156 --remove the head if no body
 157 pig.head.on_step = function(self, dtime)
 158         if self.parent == nil then
 159                 self.object:remove()
 160         end
 161 end
 162 minetest.register_entity("mob:head", pig.head)