throwing/fireworks_blue_arrow.lua

minetest.register_craftitem("throwing:arrow_fireworks_blue", {
	description = "Blue fireworks arrow",
	inventory_image = "throwing_arrow_fireworks_blue.png",
})

minetest.register_node("throwing:arrow_fireworks_blue_box", {
	drawtype = "nodebox",
	node_box = {
		type = "fixed",
		fixed = {
			-- Shaft
			{-6.5/17, -1.5/17, -1.5/17, 6.5/17, 1.5/17, 1.5/17},
			--Spitze
			{-4.5/17, 2.5/17, 2.5/17, -3.5/17, -2.5/17, -2.5/17},
			{-8.5/17, 0.5/17, 0.5/17, -6.5/17, -0.5/17, -0.5/17},
			--Federn
			{6.5/17, 1.5/17, 1.5/17, 7.5/17, 2.5/17, 2.5/17},
			{7.5/17, -2.5/17, 2.5/17, 6.5/17, -1.5/17, 1.5/17},
			{7.5/17, 2.5/17, -2.5/17, 6.5/17, 1.5/17, -1.5/17},
			{6.5/17, -1.5/17, -1.5/17, 7.5/17, -2.5/17, -2.5/17},
			
			{7.5/17, 2.5/17, 2.5/17, 8.5/17, 3.5/17, 3.5/17},
			{8.5/17, -3.5/17, 3.5/17, 7.5/17, -2.5/17, 2.5/17},
			{8.5/17, 3.5/17, -3.5/17, 7.5/17, 2.5/17, -2.5/17},
			{7.5/17, -2.5/17, -2.5/17, 8.5/17, -3.5/17, -3.5/17},
		}
	},
	tiles = {"throwing_arrow_fireworks_blue.png", "throwing_arrow_fireworks_blue.png", "throwing_arrow_fireworks_blue_back.png", "throwing_arrow_fireworks_blue_front.png", "throwing_arrow_fireworks_blue_2.png", "throwing_arrow_fireworks_blue.png"},
	groups = {not_in_creative_inventory=1},
})

local THROWING_ARROW_ENTITY={
	physical = false,
	timer=0,
	visual = "wielditem",
	visual_size = {x=0.1, y=0.1},
	textures = {"throwing:arrow_fireworks_blue_box"},
	lastpos={},
	collisionbox = {0,0,0,0,0,0},
}

local radius = 0.5

local function add_effects(pos, radius)
	minetest.add_particlespawner({
		amount = 256,
		time = 0.2,
		minpos = vector.subtract(pos, radius / 2),
		maxpos = vector.add(pos, radius / 2),
		minvel = {x=-5, y=-5, z=-5},
		maxvel = {x=5,  y=5,  z=5},
		minacc = {x=0, y=-8, z=0},
		--~ maxacc = {x=-20, y=-50, z=-50},
		minexptime = 2.5,
		maxexptime = 3,
		minsize = 1,
		maxsize = 2.5,
		texture = "throwing_sparkle_blue.png",
	})
end


local function boom(pos)
	minetest.sound_play("throwing_firework_boom", {pos=pos, gain=1, max_hear_distance=2*64})
	minetest.set_node(pos, {name="throwing:firework_boom"})
	minetest.get_node_timer(pos):start(0.2)
	add_effects(pos, radius)
end

-- Back to the arrow

THROWING_ARROW_ENTITY.on_step = function(self, dtime)
	self.timer=self.timer+dtime
	local pos = self.object:getpos()
	local node = minetest.get_node(pos)
	if self.timer < 0.07 then
		minetest.sound_play("throwing_firework_launch", {pos=pos, gain=0.8, max_hear_distance=2*64})
	end
	minetest.add_particlespawner({
		amount = 16,
		time = 0.1,
		minpos = pos,
		maxpos = pos,
		minvel = {x=-5, y=-5, z=-5},
		maxvel = {x=5,  y=5,  z=5},
		minacc = vector.new(),
		maxacc = vector.new(),
		minexptime = 0.3,
		maxexptime = 0.5,
		minsize = 0.5,
		maxsize = 1,
		texture = "throwing_sparkle.png",
	})
	if self.timer>0.2 then
		local objs = minetest.get_objects_inside_radius({x=pos.x,y=pos.y,z=pos.z}, 2)
		for k, obj in pairs(objs) do
			if obj:get_luaentity() ~= nil then
				if obj:get_luaentity().name ~= "throwing:arrow_fireworks_blue_entity" and obj:get_luaentity().name ~= "__builtin:item" then
					local damage = 2
					obj:punch(self.object, 1.0, {
						full_punch_interval=1.0,
						damage_groups={fleshy=damage},
					}, nil)
					self.object:remove()
					boom(pos)
				end
			end
		end
	end
	if self.timer > 2 then
		self.object:remove()
		boom(self.lastpos)
	end
	if self.lastpos.x~=nil then
		if node.name ~= "air" and node.name ~= "throwing:firework_trail" then
			self.object:remove()
			boom(self.lastpos)
		end
	end
	minetest.add_node(pos, {name="throwing:firework_trail"})
	minetest.get_node_timer(pos):start(0.2)
	self.lastpos={x=pos.x, y=pos.y, z=pos.z}
end

minetest.register_entity("throwing:arrow_fireworks_blue_entity", THROWING_ARROW_ENTITY)

minetest.register_craft({
	output = 'throwing:arrow_fireworks_blue 8',
	recipe = {
		{'default:stick', 'tnt:gunpowder', 'dye:blue'},
	}
})

minetest.register_craft({
	output = 'throwing:arrow_fireworks_blue 8',
	recipe = {
		{'dye:blue', 'tnt:gunpowder', 'default:stick'},
	}
})

minetest.register_node("throwing:firework_trail", {
	drawtype = "airlike",
	light_source = 9,
	walkable = false,
	drop = "",
	groups = {dig_immediate=3},
	on_timer = function(pos, elapsed)
		minetest.remove_node(pos)
	end,
})

minetest.register_node("throwing:firework_boom", {
	drawtype = "plantlike",
	tiles = {"throwing_sparkle.png"},
	light_source = default.LIGHT_MAX,
	walkable = false,
	drop = "",
	groups = {dig_immediate=3},
	on_timer = function(pos, elapsed)
		minetest.remove_node(pos)
	end,
	after_destruct = function(pos, oldnode)
		minetest.set_node(pos, {name="throwing:firework_light"})
		minetest.get_node_timer(pos):start(3)
	end,
})

minetest.register_node("throwing:firework_light", {
	drawtype = "airlike",
	light_source = default.LIGHT_MAX,
	walkable = false,
	drop = "",
	groups = {dig_immediate=3},
	on_timer = function(pos, elapsed)
		minetest.remove_node(pos)
	end,
})