Added double-headed yufeng, as a proof of concept for multi-headed la…

…texes

src/main/java/net/ltxprogrammer/changed/ability/IAbstractChangedEntity.java

@@ -12,6 +12,7 @@
 import net.minecraft.util.Mth;
 import net.minecraft.world.InteractionHand;
 import net.minecraft.world.MenuProvider;
+import net.minecraft.world.entity.Entity;
 import net.minecraft.world.entity.LivingEntity;
 import net.minecraft.world.entity.item.ItemEntity;
 import net.minecraft.world.entity.player.Player;
@@ -484,4 +485,12 @@ else if (entity instanceof ChangedEntity changed)
             return forEntity(changed);
         return null;
     }
+
+    static Optional<IAbstractChangedEntity> forEitherSafe(Entity entity) {
+        if (entity instanceof Player player && ProcessTransfur.isPlayerTransfurred(player))
+            return Optional.of(forPlayer(player));
+        else if (entity instanceof ChangedEntity changed)
+            return Optional.of(forEntity(changed));
+        return Optional.empty();
+    }
 }

src/main/java/net/ltxprogrammer/changed/client/renderer/DarkLatexDoubleYufengRenderer.java

@@ -0,0 +1,30 @@
+package net.ltxprogrammer.changed.client.renderer;
+
+import net.ltxprogrammer.changed.Changed;
+import net.ltxprogrammer.changed.client.renderer.layers.CustomEyesLayer;
+import net.ltxprogrammer.changed.client.renderer.layers.LatexParticlesLayer;
+import net.ltxprogrammer.changed.client.renderer.layers.TransfurCapeLayer;
+import net.ltxprogrammer.changed.client.renderer.model.DarkLatexDoubleYufengModel;
+import net.ltxprogrammer.changed.client.renderer.model.armor.ArmorLatexMaleWingedDragonModel;
+import net.ltxprogrammer.changed.entity.beast.DarkLatexDoubleYufeng;
+import net.ltxprogrammer.changed.util.Color3;
+import net.minecraft.client.renderer.entity.EntityRendererProvider;
+import net.minecraft.resources.ResourceLocation;
+
+public class DarkLatexDoubleYufengRenderer extends AdvancedHumanoidRenderer<DarkLatexDoubleYufeng, DarkLatexDoubleYufengModel, ArmorLatexMaleWingedDragonModel<DarkLatexDoubleYufeng>> {
+    public DarkLatexDoubleYufengRenderer(EntityRendererProvider.Context context) {
+        super(context, new DarkLatexDoubleYufengModel(context.bakeLayer(DarkLatexDoubleYufengModel.LAYER_LOCATION)), ArmorLatexMaleWingedDragonModel.MODEL_SET, 0.5f);
+        this.addLayer(new LatexParticlesLayer<>(this, getModel(), model::isPartNotMask));
+        this.addLayer(TransfurCapeLayer.normalCape(this, context.getModelSet()));
+        this.addLayer(CustomEyesLayer.builder(this, context.getModelSet())
+                .withSclera(Color3.fromInt(0x242424))
+                .withIris(CustomEyesLayer.fixedIfNotDarkLatexOverrideLeft(Color3.WHITE),
+                        CustomEyesLayer.fixedIfNotDarkLatexOverrideRight(Color3.WHITE))
+                .build());
+    }
+
+    @Override
+    public ResourceLocation getTextureLocation(DarkLatexDoubleYufeng p_114482_) {
+        return Changed.modResource("textures/dark_latex_yufeng.png");
+    }
+}

src/main/java/net/ltxprogrammer/changed/client/renderer/animate/multihead/DoubleHeadAnimator.java

@@ -0,0 +1,55 @@
+package net.ltxprogrammer.changed.client.renderer.animate.multihead;
+
+import net.ltxprogrammer.changed.client.renderer.animate.HumanoidAnimator;
+import net.ltxprogrammer.changed.client.renderer.model.AdvancedHumanoidModel;
+import net.ltxprogrammer.changed.entity.ChangedEntity;
+import net.ltxprogrammer.changed.entity.beast.DoubleHeadedEntity;
+import net.minecraft.client.model.geom.ModelPart;
+import net.minecraft.util.Mth;
+import org.jetbrains.annotations.NotNull;
+
+public class DoubleHeadAnimator<T extends ChangedEntity & DoubleHeadedEntity, M extends AdvancedHumanoidModel<T>> extends HumanoidAnimator.Animator<T, M> {
+    private final ModelPart head;
+    private final ModelPart head2;
+
+    public DoubleHeadAnimator(ModelPart head, ModelPart head2) {
+        this.head = head;
+        this.head2 = head2;
+    }
+
+    @Override
+    public HumanoidAnimator.AnimateStage preferredStage() {
+        return HumanoidAnimator.AnimateStage.FINAL;
+    }
+
+    private float gap = 4.0f;
+    private float tilt = Mth.DEG_TO_RAD * 5.0f;
+    @Override
+    public void setupAnim(@NotNull T entity, float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw, float headPitch) {
+        boolean fallFlying = entity.getFallFlyingTicks() > 4;
+        this.head2.copyFrom(this.head);
+
+        float partialTicks = Mth.positiveModulo(ageInTicks, 1.0f);
+
+        float head2Yaw = Mth.clamp((entity.getHead2YRot(partialTicks) - Mth.rotLerp(partialTicks, entity.yBodyRotO, entity.yBodyRot)) % 360.0f, -90.0f, 90.0f);
+        float head2Pitch = entity.getHead2XRot(partialTicks);
+        head2.yRot = head2Yaw * ((float)Math.PI / 180F);
+        head2.zRot = 0.0F;
+        if (fallFlying) {
+            head2.xRot = (-(float)Math.PI / 4F);
+        } else if (core.swimAmount > 0.0F) {
+            if (entity.isVisuallySwimming()) {
+                head2.xRot = HumanoidAnimator.rotlerpRad(core.swimAmount, head2.xRot, (-(float)Math.PI / 4F));
+            } else {
+                head2.xRot = HumanoidAnimator.rotlerpRad(core.swimAmount, head2.xRot, head2Pitch * ((float)Math.PI / 180F));
+            }
+        } else {
+            head2.xRot = head2Pitch * ((float)Math.PI / 180F);
+        }
+
+        this.head.x = -gap;
+        this.head2.x = gap;
+        this.head.zRot -= tilt;
+        this.head2.zRot += tilt;
+    }
+}