Box in the vents

- Make the player hitbox smaller when hiding as a box and allow them to go into 1x1 spaces

build.gradle

@@ -85,10 +85,11 @@ minecraft {
 
             property 'forge.logging.markers', ''
             property 'forge.logging.console.level', 'info'
-            jvmArgs '-XX:+IgnoreUnrecognizedVMOptions', '-XX:+AllowEnhancedClassRedefinition' // uncomment with jbr
+            jvmArgs '-XX:+IgnoreUnrecognizedVMOptions', '-XX:+AllowEnhancedClassRedefinition'
             //jvmArgs("-XX:-OmitStackTraceInFastThrow") // uncomment when you get exceptions with null messages etc
             //jvmArgs '-XX:+UnlockCommercialFeatures' // uncomment for profiling
 
+            property 'mixin.debug.export', 'true'
             property 'mixin.env.remapRefMap', 'true'
             property 'mixin.env.refMapRemappingFile', "${projectDir}/build/createSrgToMcp/output.srg"
 
@@ -234,6 +235,10 @@ dependencies {
         jarJar.ranged(it, '[0.7.5,)')
     }
 
+    implementation(jarJar("io.github.llamalad7:mixinextras-forge:${mixin_extras_version}")) {
+        jarJar.ranged(it, "[${mixin_extras_version},)")
+    }
+
     implementation fg.deobf("com.tterrag.registrate:Registrate:${registrate_version}")
 
     compileOnly fg.deobf("dev.engine_room.flywheel:flywheel-forge-api-${flywheel_minecraft_version}:${flywheel_version}")
@@ -253,6 +258,8 @@ dependencies {
         implementation fg.deobf("net.createmod.ponder:Ponder-Forge-${minecraft_version}:${ponder_version}")
     }
 
+    compileOnly(annotationProcessor("io.github.llamalad7:mixinextras-common:${mixin_extras_version}"))
+
     compileOnly fg.deobf("mezz.jei:jei-${jei_minecraft_version}-common-api:${jei_version}")
     compileOnly fg.deobf("mezz.jei:jei-${jei_minecraft_version}-forge-api:${jei_version}")
     runtimeOnly fg.deobf("mezz.jei:jei-${jei_minecraft_version}-forge:${jei_version}")

gradle.properties

@@ -30,6 +30,7 @@ curios_minecraft_version = 1.20.1
 curios_version = 5.3.1
 catnip_version = 0.8.20
 ponder_version = 0.8.12
+mixin_extras_version = 0.4.1
 
 cc_tweaked_enable = true
 cc_tweaked_minecraft_version = 1.20.1

src/main/java/com/simibubi/create/content/equipment/armor/CardboardArmorHandler.java

@@ -6,6 +6,7 @@ import com.simibubi.create.AllItems;
 
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.EntityDimensions;
 import net.minecraft.world.entity.EquipmentSlot;
 import net.minecraft.world.entity.LivingEntity;
 import net.minecraft.world.entity.Mob;
@@ -13,15 +14,23 @@ import net.minecraft.world.entity.NeutralMob;
 import net.minecraft.world.entity.Pose;
 import net.minecraft.world.entity.ai.goal.target.TargetGoal;
 import net.minecraft.world.entity.player.Player;
+import net.minecraftforge.event.entity.EntityEvent;
 import net.minecraftforge.event.entity.living.LivingEvent.LivingTickEvent;
 import net.minecraftforge.event.entity.living.LivingEvent.LivingVisibilityEvent;
-import net.minecraftforge.event.level.NoteBlockEvent.Play;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod.EventBusSubscriber;
 
 @EventBusSubscriber
 public class CardboardArmorHandler {
 
+	@SubscribeEvent
+	public static void playerHitboxChangesWhenHidingAsBox(EntityEvent.Size event) {
+		if (event.getEntity().isAddedToWorld() && testForStealth(event.getEntity())) {
+			event.setNewSize(EntityDimensions.fixed(0.8F, 0.8F));
+			event.setNewEyeHeight(0.6F);
+		}
+	}
+
 	@SubscribeEvent
 	public static void playersStealthWhenWearingCardboard(LivingVisibilityEvent event) {
 		LivingEntity entity = event.getEntity();

src/main/java/com/simibubi/create/foundation/mixin/EntityMixin.java

@@ -1,5 +1,12 @@
 package com.simibubi.create.foundation.mixin;
 
+import com.llamalad7.mixinextras.injector.ModifyExpressionValue;
+
+import com.llamalad7.mixinextras.sugar.Local;
+import com.simibubi.create.content.equipment.armor.CardboardArmorHandler;
+
+import net.minecraft.world.entity.Pose;
+
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
@@ -11,7 +18,11 @@ import net.minecraft.world.entity.Entity;
 
 @Mixin(value = Entity.class, priority = 900)
 public class EntityMixin {
-	
+	@ModifyExpressionValue(method = "canEnterPose", at = @At(value = "INVOKE", target = "Lnet/minecraft/world/level/Level;noCollision(Lnet/minecraft/world/entity/Entity;Lnet/minecraft/world/phys/AABB;)Z"))
+	public boolean create$playerHidingAsBoxIsCrouchingNotSwimming(boolean original, @Local(argsOnly = true) Pose pose) {
+		return original || (pose == Pose.CROUCHING && CardboardArmorHandler.testForStealth((Entity) (Object) this));
+	}
+
 	@Inject(method = "fireImmune()Z", at = @At("RETURN"), cancellable = true)
 	public void create$onFireImmune(CallbackInfoReturnable<Boolean> cir) {
 		if (!cir.getReturnValueZ()) {
@@ -21,5 +32,4 @@ public class EntityMixin {
 				cir.setReturnValue(immune);
 		}
 	}
-	
 }

src/main/resources/create.mixins.json

@@ -15,6 +15,7 @@
     "LavaSwimmingMixin",
     "MainMixin",
     "MapItemSavedDataMixin",
+    "PlayerMixin",
     "TestCommandMixin",
     "WaterWheelFluidSpreadMixin",
     "accessor.AbstractProjectileDispenseBehaviorAccessor",