5.16 贴图融合

usingUnityEngine;

usingSystem.Collections;

usingSystem.Collections.Generic;

publicclassPlaneScript:MonoBehaviour{

//获得墙和子弹的纹理图片

public Texture2D bulletTexture;

public Texture2D wallTexture;

//墙面图片副本

Texture2D  wallTextureCopy;

//墙面和子弹的宽、高

float wall_width;

float wall_height;

float bullet_width;

float bullet_height;

//获取射线信息

RaycastHit hit;

//定义一个泛型队列来存储像素点信息

Queue uvQueues;

voidStart( ){

uvQueues=new Queue();

//获取墙面的贴图

wallTexture=GetComponent.material.mainTexture as Texture2D;

//备份墙面贴图

wallTextureCopy=Instantiate(wallTexture);

//将备份的材质赋值回去，作为修改的对象

GetComponent( ).material.mainTexture=wallTextureCopy;

wall_height=wallTextureCopy.height;

wall_width=wallTextureCopy.width;

bullet_height=bulletTexture.height;

bullet_width=bulletTexture.width;

}

voidUpdate( ){

//点击鼠标左键发射射线

if(Input.GetMouseButtonDown(0)){

if(Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition),outhit)){

if(hit.collider.name=="Plane"){

Vector2 uv=hit.textureCoord;

uvQueues.Enqueue(uv);//入队列

//遍历子弹图片覆盖的区域

for(int i=0;i

for(int j=0;j

//得到墙面上子弹覆盖区域对应的每个像素点

float w=uv.x*wall_width-bullet_width/2+i;

float h=uv.y*wall_height-bullet_height/2+j;

//获得墙上每一个像素点的颜色

Color wallColor=wallTextureCopy.GetPixel((int)w,(int)h);

//子弹对应的每一个像素点的颜色

Color bulletColor=bulletTexture.GetPixel(i,j);

wallTextureCopy.SetPixel((int)w,(int)h,wallColor*bulletColor);

}

}

wallTextureCopy.Apply( );

Invoke("ClearWall",2);//2秒后调用方法，清除墙面上弹痕

}

}

}

}

void ClearWall( ){

//获取队列中要取出队列的信息（弹痕）

Vector2uv=uvQueues.Dequeue( );

for(inti=0;i

for(intj=0;j

float w=uv.x*wall_width-bullet_width/2+i;

float h=uv.y*wall_height-bullet_height/2+j;

Color  wallColor=wallTexture.GetPixel((int)w,(int)h);

wallTextureCopy.SetPixel((int)w,(int)h,wallColor);

}

}

wallTextureCopy.Apply();

}

}