unity3d小地圖代碼

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unity3d小地圖代碼：

ExecuteInEditMode()
public var blip : Texture; //定義一個(gè)指針文件代表角色
public var radarBG : Texture; //地圖背景圖片，我直接用場(chǎng)景里我創(chuàng)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);
}
}