-- function to register tamed dragon attacks

function dmobs.register_fire(fname, texture, dmg, replace_node, explode,
		ice, variance, size)

	minetest.register_entity(fname, {

		initial_properties = {

			textures = {texture},
			collisionbox = {0, 0, 0, 0, 0, 0}
		},

		velocity = 0.1,
		damage = dmg,

		on_step = function(self, obj, pos)

			local remove = minetest.after(2, function()
				self.object:remove()
			end)

			local pos = self.object:get_pos()
			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 ~= fname
					and obj:get_luaentity().name ~= "dmobs:dragon_red"
					and obj:get_luaentity().name ~= "dmobs:dragon_blue"
					and obj:get_luaentity().name ~= "dmobs:dragon_black"
					and obj:get_luaentity().name ~= "dmobs:dragon_green"
					and obj:get_luaentity().name ~= "dmobs:dragon_great_tame"
					and obj:get_luaentity().name ~= "__builtin:item" then

						obj:punch(self.launcher, 1.0, {
							full_punch_interval = 1.0,
							damage_groups={fleshy = 3}
						}, nil)

						self.object:remove()
					end
				end
			end

			for dx = 0, 1 do
				for dy = 0, 1 do
					for dz = 0, 1 do

						local p = {x = pos.x + dx, y = pos.y, z = pos.z + dz}
						local t = {x = pos.x + dx, y = pos.y + dy, z = pos.z + dz}
						local n = minetest.get_node(p).name

						if n ~= fname and n ~="default:dirt_with_grass"
						and n ~="default:dirt_with_dry_grass"
						and n ~="default:stone" then

							if minetest.registered_nodes[n].groups.flammable then

								minetest.set_node(t, {name=replace_node})
								self.object:remove()
								return
							end

							if ice and n == "default:water_source" then
								minetest.set_node(t, {name="default:ice"})
								self.object:remove()
							end
						end
					end
				end
			end

			local apos = self.object:get_pos()

			if not apos then return end

			minetest.add_particlespawner({
				amount = 6,
				time = 0.3,
				minpos = {x = apos.x - variance, y = apos.y - variance, z = apos.z - variance},
				maxpos = {x = apos.x + variance, y = apos.y + variance, z = apos.z + variance},
				minvel = {x = -0, y = -0, z = -0},
				maxvel = {x = 0, y = 0, z = 0},
				minacc = {x = variance, y = -0.5 - variance, z = variance},
				maxacc = {x = 0.5 + variance, y = 0.5 + variance, z = 0.5 + variance},
				minexptime = 0.1,
				maxexptime = 0.3,
				minsize = size,
				maxsize = size + 2,
				collisiondetection = false,
				texture = texture
			})
		end
	})
end


dmobs.register_fire("dmobs:fire_plyr", "dmobs_fire.png", 2,
		"fire:basic_flame", true, false, 0.3, 1)

dmobs.register_fire("dmobs:ice_plyr", "dmobs_ice.png", 2,
		"default:ice", false, true, 0.5, 10)

dmobs.register_fire("dmobs:poison_plyr", "dmobs_poison.png", 2,
		"air", false, false, 0.3, 1)

dmobs.register_fire("dmobs:lightning_plyr", "dmobs_lightning.png", 2,
		"air", true, false, 0, 0.5)