So I am wondering if it is possible to draw a cube above an entity. No matter what kind of entity it is.

 

Where should I start, with event handler? Because ther isn't an actual event for every entity rendered, is it?

 

public static void drawCube(double x, double y, double z) {
        GL11.glBegin(GL11.GL_QUADS);
        GL11.glColor3f(0.5f, 0.5f, 0.0f);
        GL11.glVertex3f(0.5f, 0.5f, -0.5f);
        GL11.glVertex3f(-0.5f, 0.5f, -0.5f);
        GL11.glVertex3f(-0.5f, 0.5f, 0.5f);
        GL11.glVertex3f(0.5f, 0.5f, 0.5f);

        GL11.glColor3f(0.5f, 0.5f, 0.0f);
        GL11.glVertex3f(0.5f, -0.5f, 0.5f);
        GL11.glVertex3f(-0.5f, -0.5f, 0.5f);
        GL11.glVertex3f(-0.5f, -0.5f, -0.5f);
        GL11.glVertex3f(0.5f, -0.5f, -0.5f);

        GL11.glColor3f(0.5f, 0.0f, 0.0f);
        GL11.glVertex3f(0.5f, 0.5f, 0.5f);
        GL11.glVertex3f(-0.5f, 0.5f, 0.5f);
        GL11.glVertex3f(-0.5f, -0.5f, 0.5f);
        GL11.glVertex3f(0.5f, -0.5f, 0.5f);

        GL11.glColor3f(0.5f, 0.5f, 0.0f);
        GL11.glVertex3f(0.5f, -0.5f, -0.5f);
        GL11.glVertex3f(-0.5f, -0.5f, -0.5f);
        GL11.glVertex3f(-0.5f, 0.5f, -0.5f);
        GL11.glVertex3f(0.5f, 0.5f, -0.5f);

        GL11.glColor3f(0.0f, 0.0f, 0.5f);
        GL11.glVertex3f(-0.5f, 0.5f, 0.5f);
        GL11.glVertex3f(-0.5f, 0.5f, -0.5f);
        GL11.glVertex3f(-0.5f, -0.5f, -0.5f);
        GL11.glVertex3f(-0.5f, -0.5f, 0.5f);

        GL11.glColor3f(0.5f, 0.0f, 0.5f);
        GL11.glVertex3f(0.5f, 0.5f, -0.5f);
        GL11.glVertex3f(0.5f, 0.5f, 0.5f);
        GL11.glVertex3f(0.5f, -0.5f, 0.5f);
        GL11.glVertex3f(0.5f, -0.5f, -0.5f);

        GL11.glEnd();

        GL11.glTranslated(x, y, z);

 

I'd take a look at how armor is rendered, then just use that to produce the cube over the entities head. I know as of 1.8, Minecraft uses a "layered" armor system. But, I have not been able to figure out how to utilize it correctly.

No matter what kind of entity it is.

 

@gummby8 There is your answer.

I'd take a look at how armor is rendered, then just use that to produce the cube over the entities head. I know as of 1.8, Minecraft uses a "layered" armor system. But, I have not been able to figure out how to utilize it correctly.

 

But how should that work on an EntityItem? I don't think armor is implemented for an EntityItem. 

I said look at how armor is rendered on the player, not armor itself. You could use that system to render a cube above an entities head.

For me it seems more like like its an ArrayList, and in this array list all textures are rendered, nothing I could use I guess, or can I?

I now figured out how I wanna do it. That way

 

@SubscribeEvent
    public void renderGameOverlayEvent(RenderWorldLastEvent event) {
        EntityPlayer player = mc.thePlayer;
        if (getItemPlayerIsLookingAt(player) != null) {
            if (getItemPlayerIsLookingAt(player) instanceof EntityItem) {
                EntityItem item = (EntityItem) getItemPlayerIsLookingAt(player);
                RenderHelper.drawCube(item.posX, item.posY, item.posZ);
            }
        }
    }

 

But my problem is, no matter what I try, the cube will always stick to my feet

 

https://lh4.googleusercontent.com/-cp4SDkOgJJA/VpI-_p8EjpI/AAAAAAAAA-o/ffJWop51ItU/w1597-h846-no/2016-01-10_12.20.03.png[/img]

 

If anyone knows how to move that cube away, feel free to leave a reply

 

THe code for rendering the block is in my first post

I think you have to translate the cube to the Entity position.

More specifically:

 

        GL11.glEnd();

 

        GL11.glTranslated(x, y, z);

 

I love how you add a translation after you finish drawing.