113 lines
2.8 KiB
Lua
113 lines
2.8 KiB
Lua
--[[
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Particles for Minetest
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Copyright (c) 2012 cornernote, Brett O'Donnell <cornernote@gmail.com>
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Source Code: https://github.com/cornernote/minetest-particles
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License: GPLv3
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API
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]]--
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-- expose api
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particles = {}
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-- dig_particles
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particles.dig_particles = 32
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-- register entity
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minetest.register_entity("particles:particle", {
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physical = true,
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collisionbox = {-0.05,-0.05,-0.05,0.05,0.05,0.05},
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timer = 0,
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timer2 = 0,
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on_activate = function(self, staticdata)
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-- Let the entity move random-ish arround
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local obj = self.object
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obj:setacceleration({x=0, y=-5, z=0})
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obj:setvelocity({x=(math.random(0,60)-30)/30, y=(math.random(0,60))/30, z=(math.random(0,60)-30)/30})
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obj:setyaw(math.random(0,359)/180*math.pi)
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self.timer = math.random(0, 6)/3
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end,
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on_step = function(self, dtime)
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-- stop "sliding" on the ground
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self.timer2 = self.timer2+dtime
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if self.timer2 >= 0.5 then
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if self.object:getvelocity().y == 0 then
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self.object:setvelocity({x=0, y=0, z=0})
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end
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self.timer2 = 0
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end
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-- remove after ~3 seconds
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self.timer = self.timer+dtime
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if self.timer >= 3 then
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self.object:remove()
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end
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end,
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})
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-- on_dignode
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particles.on_dignode = function(pos, oldnode, digger)
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local node = minetest.registered_nodes[oldnode.name]
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-- if the no_particles group is set dont add particles
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if node.groups.no_particles then
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return
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end
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-- try to get the textures from the dig_result instead of the digged node
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local tmp = minetest.get_node_drops(oldnode.name, digger:get_wielded_item():get_name())
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if type(tmp) == "string" then
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node = minetest.registered_nodes[tmp]
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elseif type(tmp) == "table" and tmp[1] and tmp[1].get_name then
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node = minetest.registered_nodes[tmp[1]:get_name()]
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end
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-- if dig result is an item
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if node == nil then
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node = minetest.registered_nodes[oldnode.name]
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-- prevent unwanted effects
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if node == nil then
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return
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end
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end
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for i=1,particles.dig_particles do
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local dx = (math.random(0,10)-5)/10
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local dy = (math.random(0,10)-5)/10
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local dz = (math.random(0,10)-5)/10
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-- spawn at random position in the node
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local obj = minetest.env:add_entity({x=pos.x+dx, y=pos.y+dy, z=pos.z+dz}, "particles:particle")
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-- set the textures
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local textures = {}
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local max = 1
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for i=1,6 do
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if node.tiles then
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if node.tiles[i] then
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max = i
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textures[i] = node.tiles[i]
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else
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textures[i] = node.tiles[max]
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end
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else -- its a item
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textures[i] = node.inventory_image
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end
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end
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-- set size
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local vis_size= math.random(5,15)/100
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-- set drawtype
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local vis = "cube"
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-- make it upright_sprite if the drawtype of the node is not nodelike
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if node.drawtype and node.drawtype ~= "normal" then
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vis = "upright_sprite"
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end
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obj:set_properties({
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textures = textures,
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visual_size = {x=vis_size, y=vis_size},
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visual = vis,
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})
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end
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end
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