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[1.7.2] Gui position on screen


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I've just added a gui to the game, which is drawn on the screen (RenderGameOverlayEvent). Now there's the problem:

If you resize the game window, the gui is always drawn relative to the upper left corner. But I want to draw it on s specific position (In my case, it should be near the health bar). Is there a possibility to get the current position of the health bar?

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You want to get the X position relative to the centre of the screen, and the Y position relative to the bottom. That way it doesn't mess up when you resize the window. You can do this using event.resolution.getScaledHeight() and event.resolution.getScaledWidth().


The Y position of the top-left corner of the health bar region is 91 pixels to the left of the centre of the screen, the X position is around 40 pixels up from the bottom.

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Here's my gui class.


package XX.XXX.XXX;

import java.util.Collection;
import java.util.Iterator;

import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.Gui;
import net.minecraft.client.shader.ShaderGroup;
import net.minecraft.potion.Potion;
import net.minecraft.potion.PotionEffect;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.client.event.RenderGameOverlayEvent;
import net.minecraftforge.client.event.RenderGameOverlayEvent.ElementType;

import org.lwjgl.opengl.GL11;

import cpw.mods.fml.common.eventhandler.EventPriority;
import cpw.mods.fml.common.eventhandler.SubscribeEvent;

public class GuiTest extends Gui
  private Minecraft mc;

  public GuiMana(Minecraft mc)
    this.mc = mc;

  @SubscribeEvent(priority = EventPriority.NORMAL)
  public void renderGameOverlayEvent(RenderGameOverlayEvent event)

    if(event.isCancelable() || event.type != ElementType.EXPERIENCE)

      GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
      this.mc.renderEngine.bindTexture(new ResourceLocation("XXX:textures/gui/ingame_gui.png"));
       *Here is the problem; What must be insert to draw the gui over the health bar?
      this.drawTexturedModalRect(/*xpos*/, /*ypos*/, 0, 49, 102, 14); 


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