我的 Unity2D 屏幕适配

以下方法纯属我YY,切勿当真!!!

确定一个设计尺寸，比如 devWidth = 960,devHeight = 640, 按照这个尺寸进行设计游戏.

方式一: 不管什么屏幕尺寸,都和设计的尺寸对应.

只需在 Camera上 加上如下脚本:

public class ScreenAdapter : MonoBehaviour {

	private Camera mainCamera;

	private static float devWidth = 960f;
	private static float devHeight = 640f;
	private static float devAspect = devWidth / devHeight;

	// Use this for initialization
	void Start () {
		mainCamera = Camera.main;

		mainCamera.aspect = devAspect;
		mainCamera.orthographicSize = devHeight * 0.01f / 2;
	}
}

方式二:  只缩放背景图片.只需将如下代码放到背景上:

public class BgAdapter : MonoBehaviour {

	private Camera mainCamera;

	private static float devWidth = 960f;
	private static float devHeight = 640f;
	private static float devAspect = devWidth / devHeight;

	//  背景完全显示在屏幕上
	private bool mShowAll = true;

	// Use this for initialization
	void Start () {

		mainCamera = Camera.main;
		Vector3 scale = transform.localScale;

		float sy = mainCamera.orthographicSize * 2 * 100/ devHeight;
		float cameraWidth = mainCamera.orthographicSize * mainCamera.aspect * 2 * 100;
		if (mainCamera.aspect > devAspect) {

			// 会在左右留下空白,所以可以放大x
			float sx = cameraWidth/devWidth;
			scale.x = sx * sy;

			if (!mShowAll) {
				scale.y = scale.x;
			}

			transform.localScale = scale;

		} else if (mainCamera.aspect < devAspect) {

			if (mShowAll) {
				// 会裁减左右,所以可以进行缩小 x
				float sx = cameraWidth/devWidth;
				scale.x = sx * sy;

				transform.localScale = scale;
			}
		}
	}
}

　　如果mShowAll为true,则进行适配的时候背景图片会进行不均匀的拉伸,但是图片不会被裁减掉

如果mShowAll为false,则进行适配的时候背景图片可能进行的是均匀的拉伸,但是图片会被裁减掉.

Over!!!