Create HeldItemRendererMixin.java

src/main/java/net/wurstclient/mixin/HeldItemRendererMixin.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2014-2023 Wurst-Imperium and contributors.
+ *
+ * This source code is subject to the terms of the GNU General Public
+ * License, version 3. If a copy of the GPL was not distributed with this
+ * file, You can obtain one at: https://www.gnu.org/licenses/gpl-3.0.txt
+ */
+package net.wurstclient.mixin;
+
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import net.minecraft.client.network.AbstractClientPlayerEntity;
+import net.minecraft.client.render.VertexConsumerProvider;
+import net.minecraft.client.render.item.HeldItemRenderer;
+import net.minecraft.client.util.math.MatrixStack;
+import net.minecraft.item.ItemStack;
+import net.minecraft.item.Items;
+import net.minecraft.util.Hand;
+import net.wurstclient.WurstClient;
+
+@Mixin(HeldItemRenderer.class)
+public abstract class HeldItemRendererMixin
+{
+	@Inject(at = {@At(value = "INVOKE",
+		target = "Lnet/minecraft/client/render/item/HeldItemRenderer;applyEquipOffset(Lnet/minecraft/client/util/math/MatrixStack;Lnet/minecraft/util/Arm;F)V",
+		ordinal = 4)},
+		method = "renderFirstPersonItem")
+	private void lowerShieldBlocking(AbstractClientPlayerEntity player, float tickDelta, float pitch,
+		Hand hand, float swingProgress, ItemStack item, float equipProgress, MatrixStack matrices,
+		VertexConsumerProvider vertexConsumers, int light, CallbackInfo ci)
+	{
+		// lower shield when blocking
+		WurstClient.INSTANCE.getHax().noShieldOverlayHack.adjustShieldPosition(matrices, true);
+	}
+
+	@Inject(at = {@At(value = "INVOKE",
+		target = "Lnet/minecraft/client/render/item/HeldItemRenderer;applySwingOffset(Lnet/minecraft/client/util/math/MatrixStack;Lnet/minecraft/util/Arm;F)V",
+		ordinal = 1)},
+		method = "renderFirstPersonItem")
+	private void lowerShieldNonBlocking(AbstractClientPlayerEntity player, float tickDelta, float pitch,
+		Hand hand, float swingProgress, ItemStack item, float equipProgress, MatrixStack matrices,
+		VertexConsumerProvider vertexConsumers, int light, CallbackInfo ci)
+	{
+		// lower shield when not blocking
+		if(hand == Hand.OFF_HAND && item.getItem() == Items.SHIELD)
+			WurstClient.INSTANCE.getHax().noShieldOverlayHack.adjustShieldPosition(matrices, false);
+	}
+}