Pulsior

I searched for some tutorials on the subject, and they all tell me to do something like this: TextureManager e = Minecraft.getMinecraft().renderEngine; e.bindTexture(new ResourceLocation(TheOnePower.MODID, "textures/gui/spirit.png") ); Tessellator t = Tessellator.instance; t.startDrawingQuads(); t.addVertexWithUV(0, 0, 0, 0, 0);//bottom left texture t.addVertexWithUV(0, 64, 0, 0, 0);//top left t.addVertexWithUV(64, 64, 0, 1, 1);//top right t.addVertexWithUV(64, 0, 0, 64, 0);//bottom right t.draw(); But there's nothing happening. What's wrong in here?

I can see that RenderGameOverlayEvent is posted when the GUI is updated. But how can I actually render my precious little icons? (by listening to RenderGameOverlayEvent, or in another way) Would you please, please give me a code example?

I know how to listen in on the event, but I want the buttons to appear on screen when a key is pressed, and remove them with the another key. How should I make the buttons appear by listening in on an event which basically just allows me to get the x and y position of the rendered element?

I am, but how should a use such a RenderGameOverlayEvent?

So I recently started with modding, and I wondered how to show these buttons on screen, like this: I guess it has something to do with net.minecraft.client.gui, but I couldn't really find out how. Thanks in advance!