exercise 89

obj/Area.lua

@@ -49,6 +49,7 @@ end
 ---@param x number|nil horizontal position
 ---@param y number|nil vertical position
 ---@param opts table|nil additional arguments
+---@return GameObject
 function Area:addGameObject(game_object_type, x, y, opts)
     local game_object = _G[game_object_type](self, x or 0, y or 0, opts or {})
     table.insert(self.game_objects, game_object)

obj/game/Player.lua

@@ -72,7 +72,8 @@ function Player:shoot()
     local d = 1.2*self.w
     local offset_x, offset_y = self.x + d*math.cos(self.r), self.y + d*math.sin(self.r)
     self.area:addGameObject('ShootEffect', offset_x, offset_y, {player = self, d = d})
-    self.area:addGameObject('Projectile', offset_x, offset_y, {r = self.r})
+    local proj = self.area:addGameObject('Projectile', offset_x, offset_y, {v = 100 ,r = self.r})
+    proj.timer:tween(0.5, proj, {v = 400}, 'linear')
 end
 
 return Player