minecraft-src/net/minecraft/client/gui/screens/inventory/InventoryScreen.java

package net.minecraft.client.gui.screens.inventory;

import com.mojang.blaze3d.platform.Lighting;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.GuiGraphics;
import net.minecraft.client.gui.navigation.ScreenPosition;
import net.minecraft.client.gui.screens.recipebook.CraftingRecipeBookComponent;
import net.minecraft.client.renderer.RenderType;
import net.minecraft.client.renderer.entity.EntityRenderDispatcher;
import net.minecraft.network.chat.Component;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.entity.player.Player;
import net.minecraft.world.inventory.InventoryMenu;
import org.jetbrains.annotations.Nullable;
import org.joml.Quaternionf;
import org.joml.Vector3f;

@Environment(EnvType.CLIENT)
public class InventoryScreen extends AbstractRecipeBookScreen<InventoryMenu> {
	/**
	 * The old x position of the mouse pointer
	 */
	private float xMouse;
	/**
	 * The old y position of the mouse pointer
	 */
	private float yMouse;
	private boolean buttonClicked;
	private final EffectsInInventory effects;

	public InventoryScreen(Player player) {
		super(player.inventoryMenu, new CraftingRecipeBookComponent(player.inventoryMenu), player.getInventory(), Component.translatable("container.crafting"));
		this.titleLabelX = 97;
		this.effects = new EffectsInInventory(this);
	}

	@Override
	public void containerTick() {
		super.containerTick();
		if (this.minecraft.player.hasInfiniteMaterials()) {
			this.minecraft
				.setScreen(
					new CreativeModeInventoryScreen(this.minecraft.player, this.minecraft.player.connection.enabledFeatures(), this.minecraft.options.operatorItemsTab().get())
				);
		}
	}

	@Override
	protected void init() {
		if (this.minecraft.player.hasInfiniteMaterials()) {
			this.minecraft
				.setScreen(
					new CreativeModeInventoryScreen(this.minecraft.player, this.minecraft.player.connection.enabledFeatures(), this.minecraft.options.operatorItemsTab().get())
				);
		} else {
			super.init();
		}
	}

	@Override
	protected ScreenPosition getRecipeBookButtonPosition() {
		return new ScreenPosition(this.leftPos + 104, this.height / 2 - 22);
	}

	@Override
	protected void onRecipeBookButtonClick() {
		this.buttonClicked = true;
	}

	@Override
	protected void renderLabels(GuiGraphics guiGraphics, int mouseX, int mouseY) {
		guiGraphics.drawString(this.font, this.title, this.titleLabelX, this.titleLabelY, 4210752, false);
	}

	@Override
	public void render(GuiGraphics guiGraphics, int mouseX, int mouseY, float partialTick) {
		super.render(guiGraphics, mouseX, mouseY, partialTick);
		this.effects.render(guiGraphics, mouseX, mouseY, partialTick);
		this.xMouse = mouseX;
		this.yMouse = mouseY;
	}

	@Override
	public boolean showsActiveEffects() {
		return this.effects.canSeeEffects();
	}

	@Override
	protected boolean isBiggerResultSlot() {
		return false;
	}

	@Override
	protected void renderBg(GuiGraphics guiGraphics, float partialTick, int mouseX, int mouseY) {
		int i = this.leftPos;
		int j = this.topPos;
		guiGraphics.blit(RenderType::guiTextured, INVENTORY_LOCATION, i, j, 0.0F, 0.0F, this.imageWidth, this.imageHeight, 256, 256);
		renderEntityInInventoryFollowsMouse(guiGraphics, i + 26, j + 8, i + 75, j + 78, 30, 0.0625F, this.xMouse, this.yMouse, this.minecraft.player);
	}

	public static void renderEntityInInventoryFollowsMouse(
		GuiGraphics guiGraphics, int x1, int y1, int x2, int y2, int scale, float yOffset, float mouseX, float mouseY, LivingEntity entity
	) {
		float f = (x1 + x2) / 2.0F;
		float g = (y1 + y2) / 2.0F;
		guiGraphics.enableScissor(x1, y1, x2, y2);
		float h = (float)Math.atan((f - mouseX) / 40.0F);
		float i = (float)Math.atan((g - mouseY) / 40.0F);
		Quaternionf quaternionf = new Quaternionf().rotateZ((float) Math.PI);
		Quaternionf quaternionf2 = new Quaternionf().rotateX(i * 20.0F * (float) (Math.PI / 180.0));
		quaternionf.mul(quaternionf2);
		float j = entity.yBodyRot;
		float k = entity.getYRot();
		float l = entity.getXRot();
		float m = entity.yHeadRotO;
		float n = entity.yHeadRot;
		entity.yBodyRot = 180.0F + h * 20.0F;
		entity.setYRot(180.0F + h * 40.0F);
		entity.setXRot(-i * 20.0F);
		entity.yHeadRot = entity.getYRot();
		entity.yHeadRotO = entity.getYRot();
		float o = entity.getScale();
		Vector3f vector3f = new Vector3f(0.0F, entity.getBbHeight() / 2.0F + yOffset * o, 0.0F);
		float p = scale / o;
		renderEntityInInventory(guiGraphics, f, g, p, vector3f, quaternionf, quaternionf2, entity);
		entity.yBodyRot = j;
		entity.setYRot(k);
		entity.setXRot(l);
		entity.yHeadRotO = m;
		entity.yHeadRot = n;
		guiGraphics.disableScissor();
	}

	public static void renderEntityInInventory(
		GuiGraphics guiGraphics, float x, float y, float scale, Vector3f translate, Quaternionf pose, @Nullable Quaternionf cameraOrientation, LivingEntity entity
	) {
		guiGraphics.pose().pushPose();
		guiGraphics.pose().translate((double)x, (double)y, 50.0);
		guiGraphics.pose().scale(scale, scale, -scale);
		guiGraphics.pose().translate(translate.x, translate.y, translate.z);
		guiGraphics.pose().mulPose(pose);
		guiGraphics.flush();
		Lighting.setupForEntityInInventory();
		EntityRenderDispatcher entityRenderDispatcher = Minecraft.getInstance().getEntityRenderDispatcher();
		if (cameraOrientation != null) {
			entityRenderDispatcher.overrideCameraOrientation(cameraOrientation.conjugate(new Quaternionf()).rotateY((float) Math.PI));
		}

		entityRenderDispatcher.setRenderShadow(false);
		guiGraphics.drawSpecial(multiBufferSource -> entityRenderDispatcher.render(entity, 0.0, 0.0, 0.0, 1.0F, guiGraphics.pose(), multiBufferSource, 15728880));
		guiGraphics.flush();
		entityRenderDispatcher.setRenderShadow(true);
		guiGraphics.pose().popPose();
		Lighting.setupFor3DItems();
	}

	@Override
	public boolean mouseReleased(double mouseX, double mouseY, int button) {
		if (this.buttonClicked) {
			this.buttonClicked = false;
			return true;
		} else {
			return super.mouseReleased(mouseX, mouseY, button);
		}
	}
}