２Ｄシューティングの備忘録

クリックした位置に弾を飛ばす

        var v = Input.mousePosition;
        v.z = transform.position.z - Camera.main.transform.position.z;
        var worldVector3 = Camera.main.ScreenToWorldPoint(v);
        worldVector3.x += -mEmitter.transform.position.x;
        worldVector3.y += -mEmitter.transform.position.y;

        var bullet = (GameObject)Instantiate(mBulletPrefab, mEmitter.transform.position, Quaternion.identity);

        var rad = Mathf.Atan2(worldVector3.y, worldVector3.x);
        var vx = Mathf.Cos(rad);
        var vy = Mathf.Sin(rad);

        bullet.rigidbody2D.velocity = new Vector2(MoveSpeed * vx, MoveSpeed * vy);