unity3d小地图代码

@script ExecuteInEditMode()
public var blip : Texture; //定義一個指針文件代表角色
public var radarBG : Texture; //地圖背景圖片，我直接用場景里我創建的render texture
public var centerObject : Transform; //選擇角色的物體的位置信息
public var mapScale = 0.3; //地圖縮放
public var mapCenter = Vector2(50,50); //地圖中心
function OnGUI () {

    bX=centerObject.transform.position.x * mapScale;
    bY=centerObject.transform.position.z * mapScale;

    bX=centerObject.transform.position.x * mapScale;
    bY=centerObject.transform.position.z * mapScale;

    GUI.DrawTexture(Rect(mapCenter.x-32,mapCenter.y-32,64,64),radarBG);
   // 上面的mapCenter.x-32是地圖的x位置，mapCenter.y-32是y位置，64,64是地圖的大小
    DrawBlipsForEnemies();
}
function DrawBlipsForCows(){

    var gos : GameObject[];
    gos = GameObject.FindGameObjectsWithTag("Cow");
    var distance = Mathf.Infinity;
    var position = transform.position;
    for (var go : GameObject in gos)  {
        drawBlip(go,blip);
    }
}
function drawBlip(go,aTexture){

    centerPos=centerObject.position;
    extPos=go.transform.position;

    dist=Vector3.Distance(centerPos,extPos);

    dx=centerPos.x-extPos.x;
    dz=centerPos.z-extPos.z;

    deltay=Mathf.Atan2(dx,dz)*Mathf.Rad2Deg - 270 - centerObject.eulerAngles.y;

    bX=dist*Mathf.Cos(deltay * Mathf.Deg2Rad);
    bY=dist*Mathf.Sin(deltay * Mathf.Deg2Rad);

    bX=bX*mapScale;
    bY=bY*mapScale;

    if(dist<=200){
       GUI.DrawTexture(Rect(mapCenter.x+bX,mapCenter.y+bY,2,2),aTexture);
    }
}
function DrawBlipsForEnemies(){

    var gos : GameObject[];
    gos = GameObject.FindGameObjectsWithTag("Enemy");
    var distance = Mathf.Infinity;
    var position = transform.position;
    for (var go : GameObject in gos)  {
    drawBlip(go,blip);
    }
}

本文来自：http://blog.csdn.net/zhulinpptor/article/details/5882835