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Posted (edited)

I want to be able to render an entity in a GUI (like in the survival inventory). I found the renderEntityInInventory() method, but I can't figure out how to create and render a new entity. For reference, I am trying to recreate the armor stand like in the new smithing table GUI.

Smithing_Table_GUI_1.20.png

This is what I have so far:

Spoiler

Spoiler so that my code doesn't take up the entire screen, unless opened.

package gg.hipposgrumm.armor_trims.gui;

import com.mojang.blaze3d.systems.RenderSystem;
import com.mojang.blaze3d.vertex.PoseStack;
import com.mojang.logging.LogUtils;
import gg.hipposgrumm.armor_trims.Main;
import gg.hipposgrumm.armor_trims.config.Config;
import net.minecraft.client.gui.screens.inventory.AbstractContainerScreen;
import net.minecraft.client.renderer.GameRenderer;
import net.minecraft.network.chat.Component;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.decoration.ArmorStand;
import net.minecraft.world.entity.player.Inventory;
import net.minecraft.world.inventory.AbstractContainerMenu;
import net.minecraft.world.inventory.ContainerListener;
import net.minecraft.world.item.ItemStack;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.api.distmarker.OnlyIn;
import org.slf4j.Logger;

import static net.minecraft.client.gui.screens.inventory.InventoryScreen.renderEntityInInventory;

@OnlyIn(Dist.CLIENT)
public class SmithingScreenNew extends AbstractContainerScreen<SmithingMenuNew> {
    private static final Logger LOGGER = LogUtils.getLogger();

    public static final ResourceLocation SMITHING = new ResourceLocation(Main.MODID, "textures/gui/container/smithing_new.png");
    public static final ResourceLocation SMITHING_TRIM = new ResourceLocation(Main.MODID, "textures/gui/container/smithing_new_trim.png");
    public static final ResourceLocation SMITHING_CLEAN = new ResourceLocation(Main.MODID, "textures/gui/container/smithing_new_clean.png");
    public static final ResourceLocation SMITHING_CLEAN_TRIM = new ResourceLocation(Main.MODID, "textures/gui/container/smithing_new_clean_trim.png");

    private ContainerListener containerListener;
    private ResourceLocation GUI_SMITHING;
    private ResourceLocation GUI_SMITHING_TRIM;
    private Config.As_Client.PreviewModes armorstandMode;
    private ArmorStand preview;

    public SmithingScreenNew(SmithingMenuNew p_99290_, Inventory p_99291_, Component p_99292_) {
        super(p_99290_, p_99291_, p_99292_);
        this.titleLabelX = 60;
        this.titleLabelY = 18;
    }

    protected void subInit() {}

    protected void init() {
        super.init();
        this.subInit();
        this.menu.addSlotListener(this.containerListener);
        armorstandMode = Config.previewMode();
        if (armorstandMode == Config.As_Client.PreviewModes.ARMORSTAND) {
            GUI_SMITHING = SMITHING;
            GUI_SMITHING_TRIM = SMITHING_TRIM;
            preview = new ArmorStand(this.minecraft.player.getLevel(), 0, 999999999, 0);
            preview.setNoGravity(true);
        } else if (armorstandMode == Config.As_Client.PreviewModes.FRONTFACING) {
            GUI_SMITHING = SMITHING;
            GUI_SMITHING_TRIM = SMITHING_TRIM;
            preview = new ArmorStand(this.minecraft.player.getLevel(), 0, 999999999, 0);
            preview.setNoGravity(true);
            preview.setInvisible(true);
        } else if (armorstandMode == Config.As_Client.PreviewModes.NONE) {
            GUI_SMITHING = SMITHING_CLEAN;
            GUI_SMITHING_TRIM = SMITHING_CLEAN_TRIM;
        } else {
            GUI_SMITHING = SMITHING_CLEAN;
            GUI_SMITHING_TRIM = SMITHING_CLEAN_TRIM;
            preview = new ArmorStand(this.minecraft.player.getLevel(), 0, 999999999, 0);
            preview.setNoGravity(true);
        }
    }

    public void removed() {
        super.removed();
        this.menu.removeSlotListener(this.containerListener);
    }

    protected void renderLabels(PoseStack p_99294_, int p_99295_, int p_99296_) {
        RenderSystem.disableBlend();
        super.renderLabels(p_99294_, p_99295_, p_99296_);
    }

    public void render(PoseStack p_98922_, int p_98923_, int p_98924_, float p_98925_) {
        this.renderBackground(p_98922_);
        super.render(p_98922_, p_98923_, p_98924_, p_98925_);
        RenderSystem.disableBlend();
        this.renderTooltip(p_98922_, p_98923_, p_98924_);
    }

    protected void renderBg(PoseStack p_98917_, float p_98918_, int p_98919_, int p_98920_) {
        RenderSystem.setShader(GameRenderer::getPositionTexShader);
        RenderSystem.setShaderColor(1.0F, 1.0F, 1.0F, 1.0F);
        RenderSystem.setShaderTexture(0, SmithingScreenNew.this.GUI_SMITHING);
        int i = (this.width - this.imageWidth) / 2;
        int j = (this.height - this.imageHeight) / 2;
        this.blit(p_98917_, i, j, 0, 0, this.imageWidth, this.imageHeight);
        this.blit(p_98917_, i + 59, j + 20, 0, this.imageHeight + (this.menu.getSlot(0).hasItem() ? 0 : 16), 110, 16);
        if ((this.menu.getSlot(0).hasItem() || this.menu.getSlot(1).hasItem() || this.menu.getSlot(3).hasItem()) && !this.menu.getSlot(2).hasItem()) {
            this.blit(p_98917_, i + 99, j + 45, this.imageWidth, 0, 28, 21);
        }
        if (this.menu.getSlot(1).hasItem() && this.menu.getSlot(1).getItem().is(Main.smithing_templates)) {
            RenderSystem.setShaderTexture(0, SmithingScreenNew.this.GUI_SMITHING_TRIM);
        } else {
            RenderSystem.setShaderTexture(0, SmithingScreenNew.this.GUI_SMITHING);
            LOGGER.warn(armorstandMode.toString());
        }
        if (this.armorstandMode != Config.As_Client.PreviewModes.NONE) {
            try {
                renderEntityInInventory(i + 51, j + 75, 30, 0, 0, preview);
            } catch (NullPointerException e) {
                LOGGER.warn("Armorstand is disabled or null.");
            }
        }
    }

    @Override
    public void onClose() {
        super.onClose();
        if (preview != null) {
            preview.remove(Entity.RemovalReason.DISCARDED);
        }
    }

    public void dataChanged(AbstractContainerMenu p_169759_, int p_169760_, int p_169761_) {}
    public void slotChanged(AbstractContainerMenu p_98910_, int p_98911_, ItemStack p_98912_) {}
}

And before anyone tells me, I have checked InventoryScreen.class (it's where I found renderEntityInInventory()). InventoryScreen.class refers to an existing entity (the player), I am trying to instantiate and refer to a NEW entity. How can I do this or is there a better way to do it than what I think I should do? (I WOULD decompile 23w05a if mcp for snapshots was a thing.)

Edited by Hipposgrumm
Case Closed

I'm not good at modding, but at least I can read a crash report (well enough). That's something, right?

  • Hipposgrumm changed the title to How to create new Entity in GUI?
Posted (edited)

I figured it out, I had to cast preview as LivingEntity instead of ArmorStand.

From:

private ArmorStand preview;

To:

private LivingEntity preview;
Edited by Hipposgrumm
For modders hoping for help with this themselves, this is all that had to change from my original code; line 37.

I'm not good at modding, but at least I can read a crash report (well enough). That's something, right?

  • Hipposgrumm changed the title to [Solved] How to create new Entity in GUI?

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