throwing/functions.lua

--~ 
--~ Shot and reload system
--~ 

function throwing_shoot_arrow (itemstack, player, stiffness, is_cross)
	local arrow = itemstack:get_metadata()
	itemstack:set_metadata("")
	player:set_wielded_item(itemstack)
	local playerpos = player:getpos()
	local obj = minetest.add_entity({x=playerpos.x,y=playerpos.y+1.5,z=playerpos.z}, arrow)
	local dir = player:get_look_dir()
	obj:setvelocity({x=dir.x*stiffness, y=dir.y*stiffness, z=dir.z*stiffness})
	obj:setacceleration({x=dir.x*-3, y=-10, z=dir.z*-3})
	obj:setyaw(player:get_look_yaw()+math.pi)
	if is_cross then
		minetest.sound_play("throwing_crossbow_sound", {pos=playerpos})
	else
		minetest.sound_play("throwing_bow_sound", {pos=playerpos})
	end
	if obj:get_luaentity().player == "" then
		obj:get_luaentity().player = player
	end
	obj:get_luaentity().stack = player:get_inventory():get_stack("main", player:get_wield_index()-1)
	obj:get_luaentity().inventory = player:get_inventory()
	return true
end

function throwing_unload (itemstack, player, unloaded, wear)
	if itemstack:get_metadata() then
		for _,arrow in ipairs(throwing_arrows) do
			if itemstack:get_metadata() == arrow[2] then
				if not minetest.setting_getbool("creative_mode") then
					player:get_inventory():add_item("main", arrow[1])
				end
			end
		end
	end
	if wear >= 65535 then
		player:set_wielded_item({})
	else
		player:set_wielded_item({name=unloaded, wear=wear})
	end
end

function throwing_reload (itemstack, player, pos, is_cross, loaded)
	if itemstack:get_name() == player:get_wielded_item():get_name() then
		if (pos.x == player:getpos().x and pos.y == player:getpos().y and pos.z == player:getpos().z) or not is_cross then
			local wear = itemstack:get_wear()
			for _,arrow in ipairs(throwing_arrows) do
				if player:get_inventory():get_stack("main", player:get_wield_index()+1):get_name() == arrow[1] then
					if not minetest.setting_getbool("creative_mode") then
						player:get_inventory():remove_item("main", arrow[1])
					end
					meta = arrow[2]
					player:set_wielded_item({name=loaded, wear=wear, metadata=meta})
				end
			end
		end
	end
end