使用unity写一个方法,这个方法可以判断一张图片是否和另一张图片有重合
时间: 2024-01-29 21:02:43 浏览: 30
以下是一个示例代码,其中判断两张图片是否重合的方法为IsOverlap:
```csharp
using UnityEngine;
public class ImageOverlapChecker : MonoBehaviour
{
public bool IsOverlap(SpriteRenderer sprite1, SpriteRenderer sprite2)
{
Bounds bounds1 = sprite1.bounds;
Bounds bounds2 = sprite2.bounds;
if (bounds1.Intersects(bounds2))
{
Texture2D texture1 = sprite1.sprite.texture;
Texture2D texture2 = sprite2.sprite.texture;
int xMin = Mathf.RoundToInt(Mathf.Max(bounds1.min.x, bounds2.min.x));
int xMax = Mathf.RoundToInt(Mathf.Min(bounds1.max.x, bounds2.max.x));
int yMin = Mathf.RoundToInt(Mathf.Max(bounds1.min.y, bounds2.min.y));
int yMax = Mathf.RoundToInt(Mathf.Min(bounds1.max.y, bounds2.max.y));
for (int x = xMin; x < xMax; x++)
{
for (int y = yMin; y < yMax; y++)
{
Color color1 = texture1.GetPixel(x - Mathf.RoundToInt(bounds1.min.x), y - Mathf.RoundToInt(bounds1.min.y));
Color color2 = texture2.GetPixel(x - Mathf.RoundToInt(bounds2.min.x), y - Mathf.RoundToInt(bounds2.min.y));
if (color1.a > 0f && color2.a > 0f)
{
return true;
}
}
}
}
return false;
}
}
```
使用方式:
```csharp
public class Example : MonoBehaviour
{
public SpriteRenderer sprite1;
public SpriteRenderer sprite2;
public ImageOverlapChecker overlapChecker;
private void Update()
{
if (overlapChecker.IsOverlap(sprite1, sprite2))
{
Debug.Log("Images overlap!");
}
}
}
```
其中,Example脚本需要挂载到场景中的某一个GameObject上,同时需要将sprite1和sprite2分别指定为要比较的两张图片的SpriteRenderer组件,overlapChecker需要指定为ImageOverlapChecker组件。每一帧更新时,调用overlapChecker的IsOverlap方法,判断两张图片是否重合。如果重合,输出一条日志。
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