Making healthbar follow enemy gameobject

Questions & Answers
1

Hi, I’m trying to set up a health bar system for a 2D game made in 3D engine. X is horizontal and Z is vertical. I have most of it working, but I can’t get the enemy health bar to follow the enemy. This is my code: (C#)

void OnGUI(){
	Vector3 targetPos = Camera.main.WorldToScreenPoint(transform.position);


		GUI.DrawTexture(new Rect(targetPos.x -30, targetPos.z, 60, 20), background);
		GUI.Box(new Rect (targetPos.x -30, targetPos.z, 60, 20), curHealth + "/"	+ maxHealth);
	}

It’s OK on the X axis, but on the Z axis the healthbar just stays at the top of the screen. I’ve probably spent 10-15 hours googling for answers and trying things that haven’t worked out. I’m sure it’s a tiny thing I’m doing wrong, but I’m a complete noob and can’t figure it out. Greatly appreciate any help.

2

GUI uses GUI coordinates, not screen coordinates. GUI coordinates start in the upper left corner, screen coordinates start in the lower right. So at line 3 do:

targetPos.y = Screen.height - targetPos.y;