I want to make a custom screen overlay. So when a boolean is true, I want that the screen to have a red overlay. I looked up in the IngameGui class and the renderPortalOverlay method but I don t know how to make a custom GUI

Edited May 20, 20223 yr by Faro

did you look at how carved pumpkin works (when you put it on your head)?

i tried doing this but cannot find anything in the source code. i looked in 'BlockPumpkin.class' and 'ItemArmor.class' but neither of them have anything about putting a pumpkin on your head. any help is appreciated.

so, did you try full text search? it's not that difficult. it would point you towards the class called IngameGui.

that helped i found the code. its in a file called GuiIngame.java. i dont know the file path for it but it contains a bunch of code for overlay gui effects and stuff so it should help a lot.

steps to find it in intellij are right click on a folder in the project, click 'find in files' button, search for "pumpkinblur.png" and click the scope button.

yeah but to use this code I need to make custom GUI and I don t know when to register it or when to call its methods

Ok thank you I made it like this and it works.

 @SubscribeEvent
  @OnlyIn(Dist.CLIENT)
  public static void RenderHUD(final RenderGameOverlayEvent event){
        if (isRampage){
           int  screenColor = 0xfff00000;
           Minecraft mc = Minecraft.getInstance();

           
            MatrixStack stack = event.getMatrixStack();
            stack.pushPose();
            int w = (mc.getWindow().getGuiScaledWidth());
            int h = (mc.getWindow().getGuiScaledHeight());

              
                float r = (float) (screenColor >> 16 & 255) / 255.0F;
                float g = (float) (screenColor >> 8 & 255) / 255.0F;
                float b = (float) (screenColor & 255) / 255.0F;
                float a = (1/ 100f) * (screenColor >> 24 & 255) / 255F;

                   RenderSystem.disableTexture();
                   RenderSystem.enableBlend();
                   RenderSystem.disableAlphaTest();
                   RenderSystem.blendFuncSeparate(770, 771, 1, 0);
                   RenderSystem.shadeModel(7425);
                   Tessellator tessellator = Tessellator.getInstance();
                   Matrix4f matrix = stack.last().pose();
                   BufferBuilder worldrenderer = tessellator.getBuilder();
                   worldrenderer.begin(7, DefaultVertexFormats.POSITION_COLOR);
                   worldrenderer.vertex(matrix, 0, h, mc.gui.getBlitOffset()).color(r, g, b, a).endVertex();


                   worldrenderer.vertex(matrix, w, h, mc.gui.getBlitOffset()).color(r, g, b, a).endVertex();
                   worldrenderer.vertex(matrix, w, 0, mc.gui.getBlitOffset()).color(r, g, b, a).endVertex();
                   worldrenderer.vertex(matrix, 0, 0, mc.gui.getBlitOffset()).color(r, g, b, a).endVertex();

                   tessellator.end();
                   RenderSystem.shadeModel(7424);
                   RenderSystem.disableBlend();
                   RenderSystem.enableAlphaTest();
                   RenderSystem.enableTexture();
                   


        }
  }