creative no clip

src/main/java/carpet/CarpetSettings.java

@@ -580,4 +580,10 @@ public class CarpetSettings
             category = CLIENT
     )
     public static boolean fogOff = false;
+
+    @Rule(
+            desc = "Creative No Clip",
+            category = {CREATIVE, CLIENT}
+    )
+    public static boolean creativeNoClip = false;
 }

src/main/java/carpet/mixins/PistonBlockEntity_creativeNoClipMixin.java

@@ -0,0 +1,29 @@
+package carpet.mixins;
+
+import carpet.CarpetSettings;
+import net.minecraft.block.entity.PistonBlockEntity;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.Direction;
+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.Redirect;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(PistonBlockEntity.class)
+public class PistonBlockEntity_creativeNoClipMixin
+{
+    @Inject(method = "method_23672", at = @At("HEAD"), cancellable = true)
+    private static void dontPushSpectators(Direction direction, Entity entity, double d, Direction direction2, CallbackInfo ci)
+    {
+        if (CarpetSettings.creativeNoClip && entity instanceof PlayerEntity && (((PlayerEntity) entity).isCreative()) && ((PlayerEntity) entity).abilities.flying) ci.cancel();
+    }
+
+    @Redirect(method = "pushEntities", at = @At(value = "INVOKE", target = "Lnet/minecraft/entity/Entity;setVelocity(DDD)V"))
+    private void ignoreAccel(Entity entity, double x, double y, double z)
+    {
+        if (CarpetSettings.creativeNoClip && entity instanceof PlayerEntity && (((PlayerEntity) entity).isCreative()) && ((PlayerEntity) entity).abilities.flying) return;
+        entity.setVelocity(x,y,z);
+    }
+}

src/main/java/carpet/mixins/PlayerEntity_creativeNoClipMixin.java

@@ -0,0 +1,56 @@
+package carpet.mixins;
+
+import carpet.CarpetSettings;
+import net.minecraft.entity.EntityType;
+import net.minecraft.entity.LivingEntity;
+import net.minecraft.entity.MovementType;
+import net.minecraft.entity.player.PlayerAbilities;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.world.World;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(PlayerEntity.class)
+public abstract class PlayerEntity_creativeNoClipMixin extends LivingEntity
+{
+    @Shadow public abstract boolean isCreative();
+
+    @Shadow @Final public PlayerAbilities abilities;
+
+    protected PlayerEntity_creativeNoClipMixin(EntityType<? extends LivingEntity> type, World world)
+    {
+        super(type, world);
+    }
+
+    @Redirect(method = "tick", at = @At(
+            value = "INVOKE",
+            target = "Lnet/minecraft/entity/player/PlayerEntity;isSpectator()Z")
+    )
+    private boolean canClipTroughWorld(PlayerEntity playerEntity)
+    {
+        return playerEntity.isSpectator() || (CarpetSettings.creativeNoClip && playerEntity.isCreative() && playerEntity.abilities.flying);
+
+    }
+
+    @Redirect(method = "tickMovement", at = @At(
+            value = "INVOKE",
+            target = "Lnet/minecraft/entity/player/PlayerEntity;isSpectator()Z")
+    )
+    private boolean collidesWithEntities(PlayerEntity playerEntity)
+    {
+        return playerEntity.isSpectator() || (CarpetSettings.creativeNoClip && playerEntity.isCreative() && playerEntity.abilities.flying);
+    }
+
+    @Redirect(method = "updateSize", at = @At(
+            value = "INVOKE",
+            target = "Lnet/minecraft/entity/player/PlayerEntity;isSpectator()Z")
+    )
+    private boolean spectatorsDontPose(PlayerEntity playerEntity)
+    {
+        return playerEntity.isSpectator() || (CarpetSettings.creativeNoClip && playerEntity.isCreative() && playerEntity.abilities.flying);
+    }
+}

src/main/java/carpet/mixins/WorldRenderer_creativeNoClipMixin.java

@@ -0,0 +1,19 @@
+package carpet.mixins;
+
+import carpet.CarpetSettings;
+import net.minecraft.client.network.ClientPlayerEntity;
+import net.minecraft.client.render.WorldRenderer;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(WorldRenderer.class)
+public class WorldRenderer_creativeNoClipMixin
+{
+    @Redirect(method = "render", at = @At(value = "INVOKE", target = "Lnet/minecraft/client/network/ClientPlayerEntity;isSpectator()Z"))
+    private boolean canSeeWorld(ClientPlayerEntity clientPlayerEntity)
+    {
+        return clientPlayerEntity.isSpectator() || (CarpetSettings.creativeNoClip && clientPlayerEntity.isCreative());
+    }
+
+}

src/main/resources/carpet.mixins.json

@@ -156,7 +156,10 @@
     "PistonBlockEntity_movableTEMixin",
     "World_movableTEMixin",
     "WorldChunk_movableTEMixin",
-    "PistonHandler_movableTEMixin"
+    "PistonHandler_movableTEMixin",
+    "PlayerEntity_creativeNoClipMixin",
+    "PistonBlockEntity_creativeNoClipMixin"
+
   ],
   "client": [
     "RenderTickCounter_tickSpeedMixin",
@@ -169,7 +172,9 @@
     "PistonBlockEntityRenderer_movableTEMixin",
     "ClientPlayNetworkHandler_smoothClientAnimationsMixin",
     "ClientPlayerEntity_clientCommandMixin",
-    "WorldRenderer_fogOffMixin"
+    "WorldRenderer_fogOffMixin",
+    "WorldRenderer_creativeNoClipMixin"
+
   ],
   "server": [
     "MinecraftDedicatedServerMixin"