How to put a health bar above enemy?C#

Questions & Answers
1

Hi there!

So, I must feel really stupid or something because I cant seem to figure this out, and I even looked it up.

Basically, I would like a red bar above the enemy that would go down when ever it gets hit.
If someone could like… point me in the right direction or help me, that would be great.

Again sorry if I sound like a complete idiot. GUI is not my thing.

-Squizy

2

BugzergArcade’s vids tutorial’s he does what your asking.

3

One way to do it would be using Transform.InverseTransformPoint(Vector3) to transform a world point (i.e., the point in which you want the health bar to “float” on) to screen coordinates. Then you would use Unity’s GUI features to draw a health texture for the bar, labels, etc. Here is an example:

public class Bar : MonoBehaviour {
    public Transform barWorldCoords;
    public Texture barBackground;
    public Texture barForeground;
    public float health = 1.0f; // From 0.0 (no health) to 1.0 (full health)

    void OnGUI() {
        Vector3 screenPoint = Transform.InverseTransformPoint(barWorldCoords.position);

        // Draw Background
        GUI.DrawTexture(new Rect(screenPoint.x-100, screenPoint.y-20, 200, 40), 
                        barBackground, ScaleMode.StretchToFill, true);
        // Draw Foreground
        GUI.DrawTexture(new Rect(screenPoint.x-100, screenPoint.y-20, 200F*health, 40),
                        barForeground, ScaleMode.StretchToFill, true, 
                        ((barForeground.width*health)/barForeground.height));
    }

}

This isn’t tested, so it might have bugs, but you should get the general idea from it.