Help with drawning stuff into minecraft hud

[Daviipkp]

 

Well, my problem is this: I've been trying to modify the minecraft hud for a long time, relying only on old threads and decompiling mods that mess with that. So far I haven't managed much, so I decided to come here and ask for help. My objective is to change the game bars, add some slots and information on the screen.

Here's the code I'm using to stop rendering what I don't need, and this "renderOverlay" method should create a bar on the screen, but it actually makes the screen completely black

public void onRender(RenderGameOverlayEvent.Pre event) {
		this.mc.options.heldItemTooltips = false;
		renderOverlay(event.getMatrixStack(), 15);
		switch (event.getType()) {
	      case AIR:
	          event.setCanceled(true); 
	      case ARMOR:
	          event.setCanceled(true); 
	      case EXPERIENCE:
	          event.setCanceled(true); 
	      case FOOD:
	          event.setCanceled(true); 
	      case HEALTH:
	          event.setCanceled(true); 
	      case HEALTHMOUNT:
	          event.setCanceled(true); 
	      case HOTBAR:
	          event.setCanceled(true); 
	      case JUMPBAR:
	          event.setCanceled(true); 
	      case POTION_ICONS:
	          event.setCanceled(true); 
	    } 
	  }

 

Edited July 29, 2021 by Daviipkp

[Daviipkp]

private void renderOverlay(MatrixStack ms, float partialTicks) {
        drawElement(ms, partialTicks);
      }
    
    private void bind(ResourceLocation res) {
        this.mc.textureManager.bind(res);;
      }
    
    private void drawElement(MatrixStack ms, float partialTicks) {
        bind(AbstractGui.GUI_ICONS_LOCATION);
        RenderSystem.pushMatrix();
        RenderSystem.enableBlend();
        Drawer.drawRect(20, 20, 10, 10, 29836473);
        RenderSystem.popMatrix();
      }

Drawer.drawRect():

 

public static void drawRect(int posX, int posY, int width, int height, int color) {
	    float f3;
	    if (color == -1)
	      return; 
	    if (color <= 16777215 && color >= 0) {
	      f3 = 1.0F;
	    } else {
	      f3 = (color >> 24 & 0xFF) / 255.0F;
	    } 
	    float f = (color >> 16 & 0xFF) / 255.0F;
	    float f1 = (color >> 8 & 0xFF) / 255.0F;
	    float f2 = (color & 0xFF) / 255.0F;
	    RenderSystem.enableBlend();
	    RenderSystem.disableTexture();
	    RenderSystem.blendFuncSeparate(770, 771, 1, 0);
	    RenderSystem.color4f(f, f1, f2, f3);
	    RenderSystem.disableDepthTest();
	    Tessellator tessellator = Tessellator.getInstance();
	    BufferBuilder vertexbuffer = tessellator.getBuilder();
	    vertexbuffer.begin(7, DefaultVertexFormats.BLOCK);
	    vertexbuffer.normal(posX, posY + height, (float) 0.0D).endVertex();
	    vertexbuffer.normal(posX + width, posY + height, (float) 0.0D).endVertex();
	    vertexbuffer.normal(posX + width, posY, (float) 0.0D).endVertex();
	    vertexbuffer.normal(posX, posY, (float) 0.0D).endVertex();
	    tessellator.end();
	    RenderSystem.enableTexture();
	    RenderSystem.disableBlend();
	    RenderSystem.enableDepthTest();
	    RenderSystem.color3f(1.0F, 1.0F, 1.0F);
	  }

there's a lot I don't know how it works, since I'm a bit new to modding, but I've been programming in Java for a while

[Daviipkp]

  On 7/29/2021 at 7:26 PM, diesieben07 said:

Show renderOverlayas well.

Expand  

I forgot to put it as an answer, but it's there

[Daviipkp]

  On 7/29/2021 at 9:00 PM, diesieben07 said:

AbstractGui already has a method to fill a rectangle with a color, you should use that one.

Expand  

how and where? 
AbstractGui.fill(ms, ?, ?, ?, ?, ?);

[Draco18s]

  On 7/29/2021 at 7:17 PM, Daviipkp said:

 

public void onRender(RenderGameOverlayEvent.Pre event) {
		this.mc.options.heldItemTooltips = false;
		renderOverlay(event.getMatrixStack(), 15);
		switch (event.getType()) {
	      case AIR:
	          event.setCanceled(true); 
	      case ARMOR:
	          event.setCanceled(true); 
	      case EXPERIENCE:
	          event.setCanceled(true); 
	      case FOOD:
	          event.setCanceled(true); 
	      case HEALTH:
	          event.setCanceled(true); 
	      case HEALTHMOUNT:
	          event.setCanceled(true); 
	      case HOTBAR:
	          event.setCanceled(true); 
	      case JUMPBAR:
	          event.setCanceled(true); 
	      case POTION_ICONS:
	          event.setCanceled(true); 
	    } 
	  }

 

Expand  

Cough

default:
	event.setCanceled(true);

Cough

[Daviipkp]

  On 7/30/2021 at 1:13 PM, Draco18s said:

Cough

default:
	event.setCanceled(true);

Cough

Expand  

I meant: what do I put in these parameters?

[poopoodice]

MatrixStack, x1, y1, x2, y2, colour

[Daviipkp]

  On 7/30/2021 at 11:21 PM, poopoodice said:

MatrixStack, x1, y1, x2, y2, colour

Expand  

about the color, what should i put there? hex color?

x1 and y1 is one of the edges of the rectangle, right?
so x2 and y2 would be the other end, and will everything in between those two be the color I choose?

[Draco18s]

  On 7/30/2021 at 11:38 PM, Daviipkp said:

what should i put there? hex color?

Expand  

What is the signature of the method you're calling. It should tell you.

[Daviipkp]

  On 7/31/2021 at 5:26 PM, Draco18s said:

What is the signature of the method you're calling. It should tell you.

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that's a method from Minecraft classes. Is completely confuse (something like _p_82638_)

[Draco18s]

That's the name of the parameter, what's it's Type

[Daviipkp]

  On 8/1/2021 at 4:28 PM, Draco18s said:

That's the name of the parameter, what's it's Type

Expand  

Integer

[Draco18s]

  On 8/1/2021 at 4:44 PM, Daviipkp said:

Integer

Expand  

Alright then.

  On 7/30/2021 at 11:38 PM, Daviipkp said:

about the color, what should i put there? hex color?

Expand  

How would you express a color as an integer?

[Daviipkp]

  On 8/1/2021 at 6:15 PM, Draco18s said:

Alright then.

How would you express a color as an integer?

Expand  

Duuud that's exactly my question. RGB? idk ._.

[Draco18s]

https://lmgtfy.app/?q=rgb+color+as+integer