local Astar = require "engine.Astar"

newAI("creep_move_simple", function(self)
	if self.ai_target.grid then
		local tx, ty = self:aiSeeTargetPos(self.ai_target.grid)
		return self:moveDirection(tx, ty)
	end
end)

newAI("creep_move_astar", function(self)
	if self.ai_target.grid then
		local tx, ty = self:aiSeeTargetPos(self.ai_target.grid)
		if tx==self.x and ty==self.y then
			self:spawnSinkReached()
		end
		local a = Astar.new(game.level.map, self)
		local path = a:calc(self.x, self.y, tx, ty)
		if not path then
			return self:runAI("creep_move_simple")
		else
			return self:move(path[1].x, path[1].y)
		end
	end
end)