I'm trying to make an in-game tutorial-like thing for my mod, and want it to just draw a gui element on screen when you use an item. However, whenever I try, nothing happens. I don't get any error in the console, and I think I have everything set up properly, I'll attach the relevant files. Hell, I'm not even sure if you can use drawTexturedModalRext with a GuiScreen but I really hope you can or there's some other way to draw a gui without needing a whole container setup. What should I be doing that isn't being properly done?

Spoiler

package space.bbkr.aura.client.gui;

import net.minecraft.client.gui.GuiScreen;
import net.minecraft.util.ResourceLocation;
import net.minecraft.client.renderer.GlStateManager;
import space.bbkr.aura.Aura;

public class GuiNote extends GuiScreen {
    private static final ResourceLocation BG_TEXTURE = new ResourceLocation(Aura.modId, "textures/gui/note_background.png"); //A/N: the texture is in the right place, and it doesn't seem to be the problem because if it was the issue then it would just show the missing texture file

    @Override
    public void drawScreen(int mouseX, int mouseY, float partialTicks) {
        this.drawDefaultBackground();
        super.drawScreen(mouseX, mouseY, partialTicks);
    }

    @Override
    public boolean doesGuiPauseGame() {
        return false;
    }

    @Override
    public void initGui() {
        GlStateManager.color(1, 1, 1, 1);
        mc.getTextureManager().bindTexture(BG_TEXTURE);
        int x = (width - 248) / 2;
        int y = (height - 166) / 2;
        drawTexturedModalRect(x, y, 0, 0, 248, 166);
    }
}

package space.bbkr.aura;

import net.minecraftforge.fml.common.network.IGuiHandler;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.world.World;
import space.bbkr.aura.client.gui.GuiNote;

public class ModGuiHandler implements IGuiHandler {
    public static final int NOTE_TUTORIAL = 0;

    @Override
    public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
        return null;
    }

    @Override
    public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
        switch (ID) {
            case NOTE_TUTORIAL:
                return new GuiNote();
            default:
                return null;
        }
    }
}

package space.bbkr.aura.item;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.util.text.TextComponentTranslation;
import net.minecraft.util.text.TextFormatting;
import net.minecraft.util.EnumActionResult;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.EnumHand;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraft.item.Item;
import space.bbkr.aura.Aura;

public class ItemNote extends ItemBase {

    protected String name;

    public ItemNote(String name) {
        super(name);
        setMaxStackSize(1);
        setCreativeTab(Aura.creativeTab);
    }

    public EnumActionResult onItemUse(EntityPlayer p, World w, BlockPos pos, EnumHand h, EnumFacing f, float x, float y, float z) {
        if(!w.isRemote) { //A/N: still no idea whether !w.isRemote returns client or server, but having it as just w.isRemote caused a nullPointerException when I tried to open the gui so I think that's server-side
            p.openGui(Aura.instance, 0, w, (int) p.posX, (int) p.posY, (int) p.posZ);
        }
        return EnumActionResult.SUCCESS;
    }
}

 

 

You're calling Gui#drawTexturedModalRect once when the GUI is first opened, which does nothing. You need to call it every frame (in your override of GuiScreen#drawScreen).

Hm. Even then, it doesn't seem to be working. I right-click the ItemNote and nothing happens; it doesn't even do the screen tint or freeze my character. Is there anything else I might be doing wrong?

I'm not really sure what to do otherwise. I'm just going off what tutorials I can find, and I can't really find any for a client-only GUI except for one that's for Forge 1.8 and uses IGuiHandler. I don't know how to use the sided proxy to open a GUI.

That works. Thanks!!