mods/fireworks/init.lua

   1 local colors ={
   2     "red",
   3     "white",
   4     "blue"
   5 }
   6
   7 local function fireworks_pop(pos)
   8     for _,color in pairs(colors) do
   9         minetest.add_particlespawner({
  10             amount = 15,
  11             time = 0.001,
  12             minpos = pos,
  13             maxpos = pos,
  14             minvel = vector.new(-16,-16,-16),
  15             maxvel = vector.new(16,16,16),
  16             minacc = {x=0, y=0, z=0},
  17             maxacc = {x=0, y=0, z=0},
  18             minexptime = 1.1,
  19             maxexptime = 1.5,
  20             minsize = 1,
  21             maxsize = 2,
  22             collisiondetection = false,
  23             collision_removal = false,
  24             vertical = false,
  25             texture = "smoke.png^[colorize:"..color..":255",
  26             glow = 14,
  27         })
  28     end
  29     minetest.sound_play("fireworks_pop",{pos=pos,pitch=math.random(80,100)/100,gain=6.0,max_hear_distance = 128})
  30 end
  31
  32
  33 minetest.register_entity("fireworks:rocket", {
  34         initial_properties = {
  35                 hp_max = 1,
  36                 physical = true,
  37                 collide_with_objects = false,
  38                 collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
  39                 visual = "sprite",
  40                 visual_size = {x = 1, y = 1},
  41                 textures = {"fireworks.png"},
  42                 is_visible = true,
  43                 pointable = true,
  44         },
  45
  46     timer = 0,
  47
  48         on_activate = function(self, staticdata, dtime_s)
  49         self.object:set_acceleration(vector.new(0,50,0))
  50         minetest.add_particlespawner({
  51             amount = 30,
  52             time = 1,
  53             minpos = pos,
  54             maxpos = pos,
  55             minvel = vector.new(0,-20,0),
  56             maxvel = vector.new(0,-20,0),
  57             minacc = {x=0, y=0, z=0},
  58             maxacc = {x=0, y=0, z=0},
  59             minexptime = 1.1,
  60             maxexptime = 1.5,
  61             minsize = 1,
  62             maxsize = 2,
  63             collisiondetection = false,
  64             collision_removal = false,
  65             vertical = false,
  66             attached = self.object,
  67             texture = "smoke.png",
  68         })
  69         minetest.sound_play("fireworks_launch",{object=self.object,pitch=math.random(80,100)/100})
  70         end,
  71
  72         sound_played = false,
  73         on_step = function(self, dtime)
  74         self.timer = self.timer + dtime
  75         if self.timer >= 1 then
  76             fireworks_pop(self.object:get_pos())
  77             self.object:remove()
  78         end
  79         end,
  80 })
  81
  82
  83 minetest.register_craftitem("fireworks:rocket", {
  84         description = "Fireworks",
  85         inventory_image = "fireworks.png",
  86         wield_image = "fireworks.png",
  87         on_place = function(itemstack, placer, pointed_thing)
  88                 if not pointed_thing.type == "node" then
  89                         return
  90                 end
  91
  92                 minetest.add_entity(pointed_thing.above, "fireworks:rocket")
  93
  94                 itemstack:take_item()
  95
  96                 return itemstack
  97         end,
  98 })
  99
 100 minetest.register_craft({
 101         type = "shapeless",
 102         output = "fireworks:rocket",
 103         recipe = {"main:paper","mob:gunpowder"},
 104 })