How to add a renderer on top of an existing minecraft gui

[tlr38usd]

I have made a potion for my mod and I have also made its effect, the only problem is I don't know how to make it render a custom icon when it is applied to the player. I have found a way to do it in normal minecraft when a gui is not open with the RenderGameOverlayEvent. How would I make it so that when the players inventory is open my effect renderer (which only has a different texture btw) will render over the existing mine craft potion buff renderer.

 

Or even better is there a way I can simply change the mine craft inventory texture without a resource pack.

[hydroflame]

Or even better is there a way I can simply change the mine craft inventory texture without a resource pack.

yeah technicly you could set to a different render target before drawing the gui and render your texture/image/wtv there too

 

or if thats chinese / too complicated you can also (and its a better option)

 

make a TickHandler client side and render there

[tlr38usd]

make a TickHandler client side and render there

 

I tried something like that, but the only problem is I don't know how to make something render outside of a render class.

[hydroflame]

you do the exact same thign, there no magic there

 

back in the days, before RnederGameOverlayEvent was created, i was rendering my mana bar in a TickHandler

when the RenderGameOverlayEvent arrived, i copy pasted my code in a @ForgeSubscribe event method

[WorldsEnder]

I got some code for you:

import net.minecraftforge.client.event.RenderGameOverlayEvent;
import net.minecraftforge.client.event.RenderGameOverlayEvent.ElementType;
import net.minecraftforge.event.ForgeSubscribe;
//maybe some imports are missing... I hope not, respond if I'm wrong or fix it yourself
public class YourRenderer()
{
public YourRenderer()
{
//Whatever you need else
MinecraftForge.EVENT_BUS.register(this); //You can/should/may do this after you created an instance of the class anywhere you
								//like
}
@ForgeSubscribe
public void onRenderEvent(RenderGameOverlayEvent.Post postRender) //You wanted to render afterwards
{
if(postRender.type!=ElementType.ALL) return; //This renders it really last. You can select another ElementType if you like.
//your render code
}
}

[tlr38usd]

you do the exact same thign, there no magic there

 

back in the days, before RnederGameOverlayEvent was created, i was rendering my mana bar in a TickHandler

when the RenderGameOverlayEvent arrived, i copy pasted my code in a @ForgeSubscribe event method

 

Okay, that kind of works, but I use methods like drawTexturedModalRect that only work if the class it is inside extends Gui.

[hydroflame]

then do it by hand

 

<superhero voice>

[shadow=red,left]TESSELLATOR TO THE RESCUE !!! TO SAVE THE DAY !!!![/shadow]

</superhero voice>

 

 

code example because youll end up asking for it anyway

 

Tessellator tess = Tessellator.instance;
Minecraft.getMinecraft().renderEngine.bindTexture("path/to/texture");// or bind ressource if in 1.6+
tess.startDrawingQuads();
tess.setColorOpaque_F(1, 1, 1);
tess.addVertexWithUV(startX, startY, 0, 0, 0);
tess.addVertexWithUV(startX, startY+height, 0, 0, 1);
tess.addVertexWithUV(startX+width, startY+height, 0, 1, 1);
tess.addVertexWithUV(startX+xSize, startY, 0, 1, 0);
tess.draw();

[shadowmage4513]

you can still use the methods from your gui-extending class even when MC isn't 'displaying' that GUI -- this is how I render health bars for my vehicles in an overlay.

 

in your client tick handler, have a reference to your gui-extending object, and onTick() just call the render methods for (from/within) your GUI.

 

[WorldsEnder]

Tick Handler maybe great for some purposes but in my opinion @ForgeSubcribe-method is better as you can hook in everywhere you want (for example after the healthbar or before the hungerbar w s e). Just sayin

[tlr38usd]

Okay, put it in a client tick handler and it works. Kind of. It keeps randomly blinking and I'm not sure how to fix that.

[hydroflame]

same thing happened to me, print your code i dont remember the answer

[tlr38usd]

My client tick handler. Do you need anything else?

 

package TuxWeapons.TuxCraft;

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

import org.lwjgl.opengl.GL11;

import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.ScaledResolution;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.resources.I18n;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.potion.Potion;
import net.minecraft.potion.PotionEffect;
import net.minecraft.util.ResourceLocation;

import cpw.mods.fml.common.ITickHandler;
import cpw.mods.fml.common.TickType;

public class ClientTickHandler implements ITickHandler {

private ResourceLocation location = new ResourceLocation(
		TuxWeaponsCore.modidLowerCase, "textures/gui/statusEffects.png");

Minecraft mc = Minecraft.getMinecraft();

@Override
public void tickStart(EnumSet<TickType> type, Object... tickData) {
	//onClientTick();

}

@Override
public void tickEnd(EnumSet<TickType> type, Object... tickData) {
	onClientTick();
}

private void onClientTick() {

	ScaledResolution scaledresolution = new ScaledResolution(mc.gameSettings, mc.displayWidth, mc.displayHeight);
        int width = scaledresolution.getScaledWidth();
        int height = scaledresolution.getScaledHeight();

	int i = ((width - 176) / 2) - 64;
        int j = (height - 166) / 2;
        boolean flag = true;
        Collection collection = this.mc.thePlayer.getActivePotionEffects();

        if (!collection.isEmpty())
        {
            GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
            GL11.glDisable(GL11.GL_LIGHTING);
            int k = 33;

            if (collection.size() > 5)
            {
                k = 132 / (collection.size() - 1);
            }

            for (Iterator iterator = this.mc.thePlayer.getActivePotionEffects().iterator(); iterator.hasNext(); j += k)
            {
                PotionEffect potioneffect = (PotionEffect)iterator.next();
                Potion potion = Potion.potionTypes[potioneffect.getPotionID()];
                GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
                this.mc.func_110434_K().func_110577_a(location);
                this.drawTexturedModalRect(i, j, 0, 166, 140, 32);

                if (potion.hasStatusIcon())
                {
                    int l = potion.getStatusIconIndex();
                    this.drawTexturedModalRect(i + 6, j + 7, 0 + l % 8 * 18, 198 + l / 8 * 18, 18, 18);
                }

                String s = I18n.func_135053_a(potion.getName());

                if (potioneffect.getAmplifier() == 1)
                {
                    s = s + " II";
                }
                else if (potioneffect.getAmplifier() == 2)
                {
                    s = s + " III";
                }
                else if (potioneffect.getAmplifier() == 3)
                {
                    s = s + " IV";
                }

                mc.fontRenderer.drawStringWithShadow(s, i + 10 + 18, j + 6, 16777215);
                String s1 = Potion.getDurationString(potioneffect);
                mc.fontRenderer.drawStringWithShadow(s1, i + 10 + 18, j + 6 + 10, 8355711);
            }
        }

}

public void drawTexturedModalRect(int par1, int par2, int par3, int par4, int par5, int par6)
{
	float zLevel = 200.0F;

    float f = 0.00390625F;
    float f1 = 0.00390625F;
    Tessellator tessellator = Tessellator.instance;
    tessellator.startDrawingQuads();
    tessellator.addVertexWithUV((double)(par1 + 0), (double)(par2 + par6), (double)zLevel, (double)((float)(par3 + 0) * f), (double)((float)(par4 + par6) * f1));
    tessellator.addVertexWithUV((double)(par1 + par5), (double)(par2 + par6), (double)zLevel, (double)((float)(par3 + par5) * f), (double)((float)(par4 + par6) * f1));
    tessellator.addVertexWithUV((double)(par1 + par5), (double)(par2 + 0), (double)zLevel, (double)((float)(par3 + par5) * f), (double)((float)(par4 + 0) * f1));
    tessellator.addVertexWithUV((double)(par1 + 0), (double)(par2 + 0), (double)zLevel, (double)((float)(par3 + 0) * f), (double)((float)(par4 + 0) * f1));
    tessellator.draw();
}

@Override
public EnumSet<TickType> ticks() {

	return EnumSet.of(TickType.PLAYER);
}

@Override
public String getLabel() {

	return null;
}

}

[WorldsEnder]

I would suppose not to use TickType.PLAYER but TickType.RENDER. Everything should work smoother

[hydroflame]

oh its not the same problem, mine was because i was rendering on tickEnd, you should maybe leave that method empty as your computer will work twice as hard for the same resutl

[tlr38usd]

I would suppose not to use TickType.PLAYER but TickType.RENDER. Everything should work smoother

 

That fixed it thanks! Although, however, now the text decided to not render

[hydroflame]

are you rendering the text AFTER the rest ? basicly if you render it first, the rest will show up in fron of it and you wont see it

[tlr38usd]

Yes