Fix Morph crash caused by Sponge

build.gradle

@@ -100,6 +100,7 @@ dependencies {
     provided("actually-additions:ActuallyAdditions:1.12.2:r145")
     provided("immersive-engineering:ImmersiveEngineering:0.12:89")
     provided("matteroverdrive:MatterOverdrive-1.12.2:0.7.1.0:universal")
+    provided("morph:Morph:1.12.2:7.1.3")
     provided("mrtjp:ProjectRed:1.12.2-4.9.1.92:mechanical") {
         exclude(module: "jei_1.12.2")
     }
@@ -153,6 +154,7 @@ jar {
                         + "mixins.sledgehammer.forge.json,"
                         + "mixins.sledgehammer.immersiveengineering.json,"
                         + "mixins.sledgehammer.matteroverdrive.json,"
+                        + "mixins.sledgehammer.morph.json,"
                         + "mixins.sledgehammer.p455w0rdslib.json,"
                         + "mixins.sledgehammer.platform.json,"
                         + "mixins.sledgehammer.projectred.json,"

src/main/java/io/github/lxgaming/sledgehammer/configuration/category/MixinCategory.java

@@ -22,6 +22,7 @@
 import io.github.lxgaming.sledgehammer.configuration.category.mixin.ForgeMixinCategory;
 import io.github.lxgaming.sledgehammer.configuration.category.mixin.ImmersiveEngineeringMixinCategory;
 import io.github.lxgaming.sledgehammer.configuration.category.mixin.MatterOverdriveMixinCategory;
+import io.github.lxgaming.sledgehammer.configuration.category.mixin.MorphMixinCategory;
 import io.github.lxgaming.sledgehammer.configuration.category.mixin.P455w0rdsLibMixinCategory;
 import io.github.lxgaming.sledgehammer.configuration.category.mixin.PrimitiveMobsMixinCategory;
 import io.github.lxgaming.sledgehammer.configuration.category.mixin.ProjectRedMixinCategory;
@@ -56,6 +57,9 @@ public class MixinCategory {
     @Setting(value = "matter-overdrive", comment = "Matter Overdrive")
     private MatterOverdriveMixinCategory matterOverdriveMixinCategory = new MatterOverdriveMixinCategory();
 
+    @Setting(value = "morph", comment = "Morph")
+    private MorphMixinCategory morphMixinCategory = new MorphMixinCategory();
+
     @Setting(value = "p455w0rdslib", comment = "p455w0rd's Library")
     private P455w0rdsLibMixinCategory p455w0rdsLibMixinCategory = new P455w0rdsLibMixinCategory();
 
@@ -110,6 +114,10 @@ public MatterOverdriveMixinCategory getMatterOverdriveMixinCategory() {
         return matterOverdriveMixinCategory;
     }
 
+    public MorphMixinCategory getMorphMixinCategory() {
+        return morphMixinCategory;
+    }
+
     public P455w0rdsLibMixinCategory getP455w0rdsLibMixinCategory() {
         return p455w0rdsLibMixinCategory;
     }

src/main/java/io/github/lxgaming/sledgehammer/configuration/category/mixin/MorphMixinCategory.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2019 Alex Thomson
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.github.lxgaming.sledgehammer.configuration.category.mixin;
+
+import io.github.lxgaming.sledgehammer.configuration.annotation.Mapping;
+import ninja.leaping.configurate.objectmapping.Setting;
+import ninja.leaping.configurate.objectmapping.serialize.ConfigSerializable;
+
+@ConfigSerializable
+public class MorphMixinCategory {
+
+    @Mapping(value = "morph.MorphInfoMixin", dependencies = {"morph"})
+    @Setting(value = "entity-update", comment = "If 'true', fixes NullPointerException caused by onUpdate")
+    private boolean entityUpdate = false;
+
+    public boolean isEntityUpdate() {
+        return entityUpdate;
+    }
+}

src/main/java/io/github/lxgaming/sledgehammer/mixin/morph/MorphInfoMixin.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2019 Alex Thomson
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.github.lxgaming.sledgehammer.mixin.morph;
+
+import io.github.lxgaming.sledgehammer.Sledgehammer;
+import me.ichun.mods.morph.common.morph.MorphInfo;
+import net.minecraft.entity.EntityLivingBase;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(value = MorphInfo.class, priority = 1337, remap = false)
+public abstract class MorphInfoMixin {
+
+    @Redirect(method = "tick",
+            at = @At(value = "INVOKE",
+                    target = "Lnet/minecraft/entity/EntityLivingBase;onUpdate()V",
+                    remap = true
+            )
+    )
+    private void onTick(EntityLivingBase entity) {
+        try {
+            entity.onUpdate();
+        } catch (Exception ex) {
+            Sledgehammer.getInstance().debug("Encountered an error while performing entity update for Morph", ex);
+        }
+    }
+}

src/main/resources/mixins.sledgehammer.morph.json

@@ -0,0 +1,15 @@
+{
+  "required": false,
+  "minVersion": "0.7.10",
+  "package": "io.github.lxgaming.sledgehammer.mixin.morph",
+  "refmap": "mixins.sledgehammer.refmap.json",
+  "plugin": "io.github.lxgaming.sledgehammer.mixin.plugin.CorePlugin",
+  "target": "@env(DEFAULT)",
+  "compatibilityLevel": "JAVA_8",
+  "mixins": [
+    "MorphInfoMixin"
+  ],
+  "injectors": {
+    "defaultRequire": 1
+  }
+}