koobas.hobune.stream
Getting the 2d coordinates of an object
Hey guys, I have a 3d cylinder object called "Tower" and I am trying to create a 2d rectangle health bar above it. I am trying to use
Vector3 screenPos = Camera.WorldToScreenPoint(target.position);
to get the 2d coordinates of my "Tower" which i will then use to draw a rectangle at that position. Can someone help me? Where I do put in the tower object? How do I get the coordinates of my tower object? Thanks,
For determination of coordinates on the screen you use function WorldToScreenPoint(). But don't forget that it gives pivot point coordinates. In your case - the cylinder center. Furtherfor the health bar display, you can use either GUITexture, or GUIElements inOnGUI(). I wrote GUITexture example below (attach this script at your tower):
public GUITexture myhb = null; //your health bar for tower
void Start() {
setPosScr();
}
void Update() {
setPosScr();
}
public void setPosScr() {
Vector3 screenPos = Camera.WorldToScreenPoint(this.transform.position);
myhb.pixelInset = new Rect(screenPos.x, Screen.height - screenPos.y, myhb.pixelInset.width, mybh.PixelInset.height);
}
If you will use GUIElement tnen see my pregoing response
You can access its position by doing this.
Vector3 towerPos = GameObject.Find("Tower").transform.position;
I guess the tower's position doesn't change, so you could easily do this in the Start() function, so you don't keep calling the search function which takes a lot of useage of the device.
