add gun client rendering mixin

src/client/java/com/nuclearcrackhead/serverboss/mixin/client/HeldItemRendererMixin.java

@@ -0,0 +1,31 @@
+package com.nuclearcrackhead.serverboss.mixin.client;
+
+import net.minecraft.client.render.item.HeldItemRenderer;
+import net.minecraft.client.render.VertexConsumerProvider;
+import net.minecraft.client.util.math.MatrixStack;
+import net.minecraft.util.Arm;
+import net.minecraft.item.ItemStack;
+import net.minecraft.client.network.AbstractClientPlayerEntity;
+import net.minecraft.util.Hand;
+
+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 org.spongepowered.asm.mixin.injection.callback.LocalCapture;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import org.spongepowered.asm.mixin.Shadow;
+import org.jetbrains.annotations.Nullable;
+
+import com.nuclearcrackhead.serverboss.content.item.IGun;
+
+@Mixin(HeldItemRenderer.class)
+public class HeldItemRendererMixin {
+	@Inject(at = @At("HEAD"), method = "renderFirstPersonItem", cancellable = true)
+	private void renderGun(AbstractClientPlayerEntity player, float tickDelta, float pitch, Hand hand, float swingProgress, ItemStack item, float equipProgress, MatrixStack matrices, VertexConsumerProvider vertexConsumers, int light, CallbackInfo ci) {
+		if (item.getItem() instanceof IGun gun) {
+			// todo render
+			ci.cancel();
+		}
+	}
+}

src/client/resources/svbcr.client.mixins.json

@@ -3,9 +3,10 @@
 	"package": "com.nuclearcrackhead.serverboss.mixin.client",
 	"compatibilityLevel": "JAVA_21",
 	"client": [
-		"ExampleClientMixin"
+		"ExampleClientMixin",
+		"HeldItemRendererMixin"
 	],
 	"injectors": {
 		"defaultRequire": 1
 	}
-}
+}

src/main/java/com/nuclearcrackhead/serverboss/content/item/IGun.java

@@ -0,0 +1,4 @@
+package com.nuclearcrackhead.serverboss.content.item;
+
+public interface IGun {
+}

src/main/java/com/nuclearcrackhead/serverboss/content/item/Pistol.java

@@ -9,7 +9,7 @@
 
 import com.nuclearcrackhead.serverboss.content.entity.*;
 
-public class Pistol extends Item implements IAttackItem {
+public class Pistol extends Item implements IAttackItem, IGun {
 	public Pistol(Settings settings) {
 		super(settings);
 	}