コード例 #1
0
ファイル: GameEngine.cs プロジェクト: JamesPersaud/EnemyMaze
        public void SpawnEnemy(int maxlevel)
        {
            PauseRendering = true;

            int r = Randomiser.Next(1, maxlevel+2);

            Enemy enemy;

            switch (r)
            {
                case 1: enemy = new Enemy(GameTypes.ENEMY_UNI);break;
                case 2: enemy = new Enemy(GameTypes.ENEMY_BIKE);break;
                case 3: enemy = new Enemy(GameTypes.ENEMY_TRIKE);break;
                case 4: enemy = new Enemy(GameTypes.ENEMY_QUAD);break;
                default: enemy = new Enemy(GameTypes.ENEMY_UNI); break;
            }

            LifeTimer.Stop();
            enemy.BirthTime = (float)LifeTimer.Elapsed;

            GameEngine.Instance.Enemies.Add(enemy);

            // make sure his path is ok
            bool pathproven = false;
            bool pointclear = false;
            Stack<PathNode> testpath = new Stack<PathNode>();
            Point start = Point.Empty;

            while (!pathproven)
            {
                start = new Point(Randomiser.Next(0, GameTypes.MAP_WIDTH), Randomiser.Next(0, GameTypes.MAP_HEIGHT));
                bool mightbeclear = true;

                foreach(Enemy inner in Enemies)
                {
                    if(enemy != inner)
                    {
                        if (inner.LastPoint == start || inner.NextPoint == start)
                        {
                            mightbeclear = false;
                            break;
                        }
                    }
                }

                if(mightbeclear)
                {
                    if (PathFinding.Instance.GetNode(start).Walkable)
                    {
                        PathFinding.Instance.GetPath(testpath, start, GameEngine.Instance.ThePlayer.CurrentPoint);
                        pathproven = (testpath != null && testpath.Count > 2);
                    }
                }
            }

            enemy.BeamTo(start);

            PauseRendering = false;
        }