Shadow hacks

gigabit101 · Nov 18, 2023 · 049c7dd · 049c7dd
1 parent 0e691f2
commit 049c7dd
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Showing 5 changed files with 68 additions and 4 deletions.
diff --git a/common/src/main/java/net/gigabit101/shrink/Shrink.java b/common/src/main/java/net/gigabit101/shrink/Shrink.java
@@ -8,6 +8,7 @@
 import net.gigabit101.shrink.init.ModItems;
 import net.gigabit101.shrink.polylib.EntitySizeEvents;
 import net.minecraft.core.registries.Registries;
+import net.minecraft.world.entity.LivingEntity;
 import net.minecraft.world.entity.ai.attributes.Attribute;
 import net.minecraft.world.entity.player.Player;
 
@@ -36,13 +37,13 @@ public static void init()
         {
             if(entity == null) return new EntitySizeEvents.UpdatedSize(size, eyeHeight, size, eyeHeight);
 
-            if(entity instanceof Player livingEntity)
+            if(entity instanceof LivingEntity livingEntity)
             {
                 if (livingEntity.getAttributes() != null)
                 {
                     if (livingEntity.getAttribute(ShrinkAPI.SCALE_ATTRIBUTE) == null) return new EntitySizeEvents.UpdatedSize(size, eyeHeight, size, eyeHeight);
 
-                    boolean canShrink = livingEntity.getAttribute(ShrinkAPI.SCALE_ATTRIBUTE).getValue() != 1.0D;
+                    boolean canShrink = ShrinkAPI.canEntityShrink(livingEntity);
 
                     System.out.println("SIDE: " + (entity.level().isClientSide() ? "CLIENT " : " SERVER ")  + "canShrink:" + canShrink + " " + livingEntity.getAttribute(ShrinkAPI.SCALE_ATTRIBUTE).getValue());
 

diff --git a/common/src/main/java/net/gigabit101/shrink/ShrinkClient.java b/common/src/main/java/net/gigabit101/shrink/ShrinkClient.java
@@ -10,7 +10,7 @@ public static void init()
     {
         LivingEntityRenderEvents.PRE.register((livingEntity, f, g, poseStack, multiBufferSource, i) ->
         {
-            boolean shrunk = livingEntity.getAttribute(ShrinkAPI.SCALE_ATTRIBUTE).getValue() != 1.0D;
+            boolean shrunk = ShrinkAPI.isEntityShrunk(livingEntity);//livingEntity.getAttribute(ShrinkAPI.SCALE_ATTRIBUTE).getValue() != 1.0D;
             if(shrunk)
             {
                 poseStack.pushPose();
@@ -21,7 +21,7 @@ public static void init()
 
         LivingEntityRenderEvents.POST.register((livingEntity, f, g, poseStack, multiBufferSource, i) ->
         {
-            boolean shrunk = livingEntity.getAttribute(ShrinkAPI.SCALE_ATTRIBUTE).hasModifier(ItemShrinkDevice.createModifier(1.0F));
+            boolean shrunk = ShrinkAPI.isEntityShrunk(livingEntity);//livingEntity.getAttribute(ShrinkAPI.SCALE_ATTRIBUTE).hasModifier(ItemShrinkDevice.createModifier(1.0F));
             if(shrunk)
             {
                 poseStack.popPose();

diff --git a/common/src/main/java/net/gigabit101/shrink/api/ShrinkAPI.java b/common/src/main/java/net/gigabit101/shrink/api/ShrinkAPI.java
@@ -1,9 +1,28 @@
 package net.gigabit101.shrink.api;
 
+import net.minecraft.world.entity.LivingEntity;
 import net.minecraft.world.entity.ai.attributes.Attribute;
 import net.minecraft.world.entity.ai.attributes.RangedAttribute;
 
 public class ShrinkAPI
 {
     public static final Attribute SCALE_ATTRIBUTE = new RangedAttribute("shrink_scale", 1.0D, 0.25D, 10).setSyncable(true);
+
+    public static boolean canEntityShrink(LivingEntity livingEntity)
+    {
+        if(livingEntity == null) return false;
+        if(livingEntity.getAttributes() == null) return false;
+        if(livingEntity.getAttribute(SCALE_ATTRIBUTE) == null) return false;
+
+        return livingEntity.getAttribute(ShrinkAPI.SCALE_ATTRIBUTE).getValue() != 1.0D;
+    }
+
+    public static boolean isEntityShrunk(LivingEntity livingEntity)
+    {
+        if(livingEntity == null) return false;
+        if(livingEntity.getAttributes() == null) return false;
+        if(livingEntity.getAttribute(SCALE_ATTRIBUTE) == null) return false;
+
+        return !livingEntity.getAttribute(ShrinkAPI.SCALE_ATTRIBUTE).getModifiers().isEmpty();
+    }
 }
diff --git a/common/src/main/java/net/gigabit101/shrink/mixins/EntityRenderDispatcherMixin.java b/common/src/main/java/net/gigabit101/shrink/mixins/EntityRenderDispatcherMixin.java
@@ -0,0 +1,43 @@
+package net.gigabit101.shrink.mixins;
+
+import com.mojang.blaze3d.vertex.PoseStack;
+import net.gigabit101.shrink.api.ShrinkAPI;
+import net.minecraft.client.renderer.MultiBufferSource;
+import net.minecraft.client.renderer.entity.EntityRenderDispatcher;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.LivingEntity;
+import net.minecraft.world.level.LevelReader;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.ModifyVariable;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(EntityRenderDispatcher.class)
+public class EntityRenderDispatcherMixin
+{
+    @Unique
+    private static float shrink$value = 0;
+    @Inject(method = "renderShadow", at = @At("HEAD"))
+    private static void renderShadow(PoseStack poseStack, MultiBufferSource multiBufferSource, Entity entity, float f, float g, LevelReader levelReader, float h, CallbackInfo ci)
+    {
+        if(entity instanceof LivingEntity livingEntity)
+        {
+            if(ShrinkAPI.isEntityShrunk(livingEntity))
+            {
+                shrink$value = (float) (h * livingEntity.getAttribute(ShrinkAPI.SCALE_ATTRIBUTE).getValue());
+            }
+            else
+            {
+                shrink$value = h;
+            }
+        }
+    }
+
+    @ModifyVariable(method = "renderShadow", at = @At("HEAD"), ordinal = 2)
+    private static float injected(float h)
+    {
+        return shrink$value;
+    }
+}
diff --git a/common/src/main/resources/shrink.mixins.json b/common/src/main/resources/shrink.mixins.json
@@ -11,6 +11,7 @@
     "defaultRequire": 1
   },
   "client": [
+    "EntityRenderDispatcherMixin",
     "LivingEntityRendererMixin"
   ]
 }