Fix slimeboots & slimesling (#63)

* Fix slimeboots & slimesling
* Use vec3 instead of Vector3d which isn't found on the server
* set entity.motionXYZ manually, as setVelocity is ClientOnly

* spotlessApply (#64)

Co-authored-by: Jason Mitchell <mitchej+github@gmail.com>
Co-authored-by: GitHub GTNH Actions <>

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

src/main/java/tconstruct/gadgets/TinkerGadgets.java

@@ -20,7 +20,7 @@ import tconstruct.gadgets.item.ItemSlimeSling;
 import tconstruct.library.SlimeBounceHandler;
 import tconstruct.library.TConstructRegistry;
 
-@Pulse(id = "Tinkers' Gadgets", description = "All the fun toys.")
+@Pulse(id = "Tinkers' Gadgets", description = "All the fun toys.", forced = true)
 public class TinkerGadgets {
 
     public static final String PulseId = "TinkerGadgets";
@@ -32,7 +32,7 @@ public class TinkerGadgets {
 
     @Handler
     public void preInit(FMLPreInitializationEvent event) {
-
+        log.info("Pre Init");
         SlimeBounceHandler.init();
         slimeSling = registerItem(new ItemSlimeSling(), "slimesling");
         slimeBoots = registerItem(new ItemSlimeBoots(), "slime_boots");
@@ -40,6 +40,7 @@ public class TinkerGadgets {
 
     @Handler
     public void init(FMLInitializationEvent event) {
+        log.info("Init");
         String ore = "blockSlime";
 
         GameRegistry.addRecipe(

src/main/java/tconstruct/gadgets/item/ItemSlimeBoots.java

@@ -4,7 +4,6 @@ import cpw.mods.fml.common.eventhandler.SubscribeEvent;
 import cpw.mods.fml.relauncher.Side;
 import cpw.mods.fml.relauncher.SideOnly;
 import java.util.List;
-import javax.vecmath.Vector3d;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.renderer.texture.IIconRegister;
 import net.minecraft.client.resources.I18n;
@@ -19,6 +18,7 @@ import net.minecraft.item.ItemArmor;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.DamageSource;
 import net.minecraft.util.IIcon;
+import net.minecraft.util.Vec3;
 import net.minecraft.world.World;
 import net.minecraftforge.common.ISpecialArmor;
 import net.minecraftforge.common.util.EnumHelper;
@@ -76,7 +76,7 @@ public class ItemSlimeBoots extends ItemArmor implements ISpecialArmor {
     @SubscribeEvent
     // RUBBERY BOUNCY BOUNCERY WOOOOO
     public void onFall(LivingFallEvent event) {
-        EntityLivingBase living = event.entityLiving;
+        final EntityLivingBase living = event.entityLiving;
         // TinkerGadgets.log.info("Fall event.");
         // using fall distance as the event distance could be reduced by jump boost
         if (living == null || living.fallDistance <= 2f) {
@@ -109,13 +109,15 @@ public class ItemSlimeBoots extends ItemArmor implements ISpecialArmor {
 
         // server players behave differently than non-server players, they have no
         // velocity during the event, so we need to reverse engineer it
-        Vector3d motion = SlimeBounceHandler.getMotion(living);
+        Vec3 motion = SlimeBounceHandler.getMotion(living);
         if (living instanceof EntityPlayerMP) {
             // velocity is lost on server players, but we dont have to defer the bounce
             double gravity = 0.2353455252;
             double time = Math.sqrt(living.fallDistance / gravity);
             double velocity = gravity * time;
-            living.setVelocity(motion.x / 0.95f, velocity, motion.z / 0.95f);
+            living.motionX = motion.xCoord / 0.95f;
+            living.motionY = velocity;
+            living.motionZ = motion.zCoord / 0.95f;
             living.velocityChanged = true;
             // preserve momentum
             SlimeBounceHandler.addBounceHandler(living);
@@ -123,8 +125,10 @@ public class ItemSlimeBoots extends ItemArmor implements ISpecialArmor {
         } else {
             // for non-players, need to defer the bounce
             // only slow down half as much when bouncing
-            living.setVelocity(motion.x / 0.95f, motion.y * -0.9, motion.z / 0.95f);
-            SlimeBounceHandler.addBounceHandler(living, SlimeBounceHandler.getMotion(living).y);
+            living.motionX = motion.xCoord / 0.95f;
+            living.motionY = motion.yCoord * -0.9;
+            living.motionZ = motion.zCoord / 0.95f;
+            SlimeBounceHandler.addBounceHandler(living, SlimeBounceHandler.getMotion(living).yCoord);
             // TinkerGadgets.log.info("Not Player");
         }
         // TinkerGadgets.log.info("Server Fall Handler.");

src/main/java/tconstruct/library/SlimeBounceHandler.java

@@ -3,9 +3,9 @@ package tconstruct.library;
 import cpw.mods.fml.common.FMLCommonHandler;
 import cpw.mods.fml.common.eventhandler.SubscribeEvent;
 import java.util.IdentityHashMap;
-import javax.vecmath.Vector3d;
 import net.minecraft.entity.EntityLivingBase;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.Vec3;
 import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.common.util.FakePlayer;
 import net.minecraftforge.event.entity.living.LivingEvent.LivingUpdateEvent;
@@ -122,7 +122,7 @@ public class SlimeBounceHandler {
                 // resets y motion after landing
                 if (entity.ticksExisted == info.bounceTick) {
                     TinkerGadgets.log.info("Bounce Tick?");
-                    entity.setVelocity(entity.motionX, info.bounce, entity.motionZ);
+                    entity.motionY = info.bounce;
                     info.bounceTick = 0;
                 }
 
@@ -145,7 +145,8 @@ public class SlimeBounceHandler {
                         // preserve 95% of former speed
                         double boost = Math.sqrt(info.lastMagSq / motionSq) * 0.95f;
                         if (boost > 1) {
-                            entity.setVelocity(entity.motionX * boost, entity.motionY, entity.motionZ * boost);
+                            entity.motionX *= boost;
+                            entity.motionZ *= boost;
                             entity.isAirBorne = true;
                             info.lastMagSq = info.lastMagSq * 0.95f * 0.95f;
                             // play sound if we had a big angle change
@@ -181,8 +182,8 @@ public class SlimeBounceHandler {
         }
     }
 
-    public static Vector3d getMotion(EntityLivingBase aEntity) {
-        return new Vector3d(aEntity.motionX, aEntity.motionY, aEntity.motionZ);
+    public static Vec3 getMotion(EntityLivingBase aEntity) {
+        return Vec3.createVectorHelper(aEntity.motionX, aEntity.motionY, aEntity.motionZ);
     }
 
     public static boolean hasSlimeBoots(EntityLivingBase entity) {