Mini-Map Radar screen with different blips.

var sphere : Texture; //blip for spheres var cube : Texture; //blip for cubes var cone : Texture; //blip for cones var cylinder : Texture; //blip for cylinders var radarBG : Texture; //background texture (radar screen)

var centerObject : Transform; var mapScale = 0.3; var mapSizePercent = 15;

var sphereTag = "Sphere"; var cubeTag = "Cube"; var coneTag = "Cone"; var cylinderTag = "Cylinder";

enum radarLocationValues {topLeft, topCenter, topRight, middleLeft, middleCenter, middleRight, bottomLeft, bottomCenter, bottomRight, custom} var radarLocation : radarLocationValues = radarLocationValues.bottomLeft;

private var mapWidth : float; private var mapHeight : float; private var mapCenter : Vector2; var mapCenterCustom : Vector2;

function Start () { setMapLocation();
}

function OnGUI () { // GUI.matrix = Matrix4x4.TRS (Vector3.zero, Quaternion.identity, Vector3(Screen.width / 600.0, Screen.height / 450.0, 1));

 // Draw player blip (centerObject)
 bX=centerObject.transform.position.x * mapScale;
 bY=centerObject.transform.position.z * mapScale;   
 GUI.DrawTexture(Rect(mapCenter.x - mapWidth/2,mapCenter.y-mapHeight/2,mapWidth,mapHeight),radarBG);

 DrawBlipsForShapes();

}

function drawBlip(go,aTexture){

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

 // first we need to get the distance of the enemy from the player
 dist=Vector3.Distance(centerPos,extPos);

 dx=centerPos.x-extPos.x; // how far to the side of the player is the enemy?
 dz=centerPos.z-extPos.z; // how far in front or behind the player is the enemy?

 // what's the angle to turn to face the enemy - compensating for the player's turning?
 deltay=Mathf.Atan2(dx,dz)*Mathf.Rad2Deg - 270 - centerObject.eulerAngles.y;

 // just basic trigonometry to find the point x,y (enemy's location) given the angle deltay
 bX=dist*Mathf.Cos(deltay * Mathf.Deg2Rad);
 bY=dist*Mathf.Sin(deltay * Mathf.Deg2Rad);

 bX=bX*mapScale; // scales down the x-coordinate so that the plot stays within our radar
 bY=bY*mapScale; // scales down the y-coordinate so that the plot stays within our radar

 if(dist<=mapWidth*.5/mapScale){
     // this is the diameter of our largest radar circle
    GUI.DrawTexture(Rect(mapCenter.x+bX,mapCenter.y+bY,4,4),aTexture);

 }

}

function DrawBlipsForShapes(){

 var gos : GameObject[];
 gos = GameObject.FindGameObjectsWithTag(sphereTag && cubeTag && coneTag && cylinderTag);

 var distance = Mathf.Infinity;
 var position = transform.position;

 // Iterate through them and call drawBlip function
 for (var go : GameObject in gos)  {
     var blipChoice : Texture;
     if(go.tag == "Sphere") {
         blipChoice = sphere;
     }
     drawBlip(go,blipChoice);
     if(go.tag == "Cube") {
         blipChoice = cube;
     }
     drawBlip(go,blipChoice);
     if(go.tag == "Cone") {
         blipChoice = cone;
     }
     drawBlip(go,blipChoice);
     if(go.tag == "Cylinder") {
         blipChoice = cylinder;
     }
     drawBlip(go,blipChoice);
 }

}

function setMapLocation () { mapWidth = Screen.width*mapSizePercent/100.0; mapHeight = mapWidth;

 //sets mapCenter based on enum selection
 if(radarLocation == radarLocationValues.topLeft){
     mapCenter = Vector2(mapWidth/2, mapHeight/2);
 } else if(radarLocation == radarLocationValues.topCenter){
     mapCenter = Vector2(Screen.width/2, mapHeight/2);
 } else if(radarLocation == radarLocationValues.topRight){
     mapCenter = Vector2(Screen.width-mapWidth/2, mapHeight/2);
 } else if(radarLocation == radarLocationValues.middleLeft){
     mapCenter = Vector2(mapWidth/2, Screen.height/2);
 } else if(radarLocation == radarLocationValues.middleCenter){
     mapCenter = Vector2(Screen.width/2, Screen.height/2);
 } else if(radarLocation == radarLocationValues.middleRight){
     mapCenter = Vector2(Screen.width-mapWidth/2, Screen.height/2);
 } else if(radarLocation == radarLocationValues.bottomLeft){
     mapCenter = Vector2(mapWidth/2, Screen.height - mapHeight/2);
 } else if(radarLocation == radarLocationValues.bottomCenter){
     mapCenter = Vector2(Screen.width/2, Screen.height - mapHeight/2);
 } else if(radarLocation == radarLocationValues.bottomRight){
     mapCenter = Vector2(Screen.width-mapWidth/2, Screen.height - mapHeight/2);
 } else if(radarLocation == radarLocationValues.custom){
     mapCenter = mapCenterCustom;
 }