WIP: initial epic fight core extraction (Phase 0)

83 files forkés d'Epic Fight (~18k LOC). Base non-compilable en l'état.

Contenu extrait :
- math/ — OpenMatrix4f, Vec3f/4f/2f, QuaternionUtils, MathUtils, ...
- armature/ — Armature, Joint, JointTransform, HumanoidArmature
- anim/ — Animator, ServerAnimator, ClientAnimator, LivingMotion, ...
- anim/types/ — StaticAnimation, DynamicAnimation, MovementAnimation, LinkAnimation,
                ConcurrentLinkAnimation, LayerOffAnimation, EntityState
- anim/client/ — Layer, ClientAnimator, JointMask
- mesh/ — SkinnedMesh, SingleGroupVertexBuilder, Mesh, HumanoidMesh, ...
- cloth/ — AbstractSimulator, ClothSimulator (dépendance transitive de StaticMesh)
- asset/ — JsonAssetLoader, AssetAccessor
- patch/ — EntityPatch, LivingEntityPatch, PlayerPatch, ClientPlayerPatch
- util/ — ParseUtil, TypeFlexibleHashMap
- exception/ — AssetLoadingException
- event/ — PatchedRenderersEvent, PrepareModelEvent, RegisterResourceLayersEvent
- render/ — TiedUpRenderTypes

Headers GPLv3 + attribution injectés sur tous les .java.
Package declarations fixées sur Armature.java et TiedUpRenderTypes.java.

115 imports résiduels à résoudre manuellement :
- yesman.epicfight.main (EpicFightMod, EpicFightSharedConstants) — 30
- yesman.epicfight.gameasset (Animations, Armatures, EpicFightSounds) — 12
- yesman.epicfight.api.physics + physics.ik (combat physics) — 16
- yesman.epicfight.network.* (combat packets) — 13
- yesman.epicfight.world.* (combat entity logic) — 10
- yesman.epicfight.config.ClientConfig — 3
- yesman.epicfight.skill, .client.gui, .particle, .collider — divers combat/UI

Stratégie fix (2-3 sem manuel) : strip usage combat, stubs pour refs
core (EpicFightMod → TiedUpMod, SharedConstants → TiedUpRigConstants,
ClientConfig → TiedUpAnimationConfig).

src/main/java/com/tiedup/remake/rig/cloth/AbstractSimulator.java

@@ -0,0 +1,135 @@
+/*
+ * Derived from Epic Fight (https://github.com/Epic-Fight/epicfight)
+ * by the Epic Fight Team, licensed under GPLv3.
+ * Modifications © 2026 TiedUp! Remake Contributors, distributed under GPLv3.
+ */
+
+package com.tiedup.remake.rig.cloth;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.function.BooleanSupplier;
+
+import org.apache.commons.lang3.tuple.Pair;
+
+import com.google.common.collect.Maps;
+
+import yesman.epicfight.api.physics.PhysicsSimulator;
+import yesman.epicfight.api.physics.SimulationObject;
+import yesman.epicfight.api.physics.SimulationObject.SimulationObjectBuilder;
+import yesman.epicfight.api.physics.SimulationProvider;
+
+public abstract class AbstractSimulator<KEY, B extends SimulationObjectBuilder, PV extends SimulationProvider<O, SO, B, PV>, O, SO extends SimulationObject<B, PV, O>> implements PhysicsSimulator<KEY, B, PV, O, SO> {
+	protected Map<KEY, ObjectWrapper> simulationObjects = Maps.newHashMap();
+	
+	@Override
+	public void tick(O simObject) {
+		this.simulationObjects.values().removeIf((keyWrapper) -> {
+			if (keyWrapper.isRunning()) {
+				if (!keyWrapper.runWhen.getAsBoolean()) {
+					keyWrapper.stopRunning();
+					
+					if (!keyWrapper.permanent) {
+						return true;
+					}
+				}
+			} else {
+				if (keyWrapper.runWhen.getAsBoolean()) {
+					keyWrapper.startRunning(simObject);
+				}
+			}
+			
+			return false;
+		});
+	}
+	
+	/**
+	 * Add a simulation object and run. Remove when @Param until returns false
+	 */
+	@Override
+	public void runUntil(KEY key, PV provider, B builder, BooleanSupplier until) {
+		this.simulationObjects.put(key, new ObjectWrapper(provider, until, false, builder));
+	}
+	
+	/**
+	 * Add an undeleted simulation object. Run simulation when @Param when returns true
+	 */
+	@Override
+	public void runWhen(KEY key, PV provider, B builder, BooleanSupplier when) {
+		this.simulationObjects.put(key, new ObjectWrapper(provider, when, true, builder));
+	}
+	
+	/**
+	 * Stop simulation
+	 */
+	@Override
+	public void stop(KEY key) {
+		this.simulationObjects.remove(key);
+	}
+	
+	/**
+	 * Restart with the same condition but with another provider
+	 */
+	@Override
+	public void restart(KEY key) {
+		ObjectWrapper kwrap = this.simulationObjects.get(key);
+		
+		if (kwrap != null) {
+			this.stop(key);
+			this.simulationObjects.put(key, new ObjectWrapper(kwrap.provider, kwrap.runWhen, kwrap.permanent, kwrap.builder));
+		}
+	}
+	
+	@Override
+	public boolean isRunning(KEY key) {
+		return this.simulationObjects.containsKey(key) ? this.simulationObjects.get(key).isRunning() : false;
+	}
+	
+	@Override
+	public Optional<SO> getRunningObject(KEY key) {
+		if (!this.simulationObjects.containsKey(key)) {
+			return Optional.empty();
+		}
+		
+		return Optional.ofNullable(this.simulationObjects.get(key).simulationObject);
+	}
+	
+	public List<Pair<KEY, SO>> getAllRunningObjects() {
+		return this.simulationObjects.entrySet().stream().filter((entry) -> entry.getValue().isRunning()).map((entry) -> Pair.of(entry.getKey(), entry.getValue().simulationObject)).toList();
+	}
+	
+	protected class ObjectWrapper {
+		final PV provider;
+		final B builder;
+		final BooleanSupplier runWhen;
+		final boolean permanent;
+		
+		SO simulationObject;
+		boolean isRunning;
+		
+		ObjectWrapper(PV key, BooleanSupplier runWhen, boolean permanent, B builder) {
+			this.provider = key;
+			this.runWhen = runWhen;
+			this.permanent = permanent;
+			this.builder = builder;
+		}
+		
+		public void startRunning(O simObject) {
+			this.simulationObject = this.provider.createSimulationData(this.provider, simObject, this.builder);
+			
+			if (this.simulationObject != null) {
+				this.isRunning = true;
+			}
+		}
+		
+		public void stopRunning() {
+			this.isRunning = false;
+			this.simulationObject = null;
+		}
+		
+		public boolean isRunning() {
+			return this.isRunning;
+		}
+	}
+}

src/main/java/com/tiedup/remake/rig/cloth/ClothColliderPresets.java

@@ -0,0 +1,68 @@
+/*
+ * Derived from Epic Fight (https://github.com/Epic-Fight/epicfight)
+ * by the Epic Fight Team, licensed under GPLv3.
+ * Modifications © 2026 TiedUp! Remake Contributors, distributed under GPLv3.
+ */
+
+package com.tiedup.remake.rig.cloth;
+
+import java.util.List;
+import java.util.function.Function;
+
+import com.google.common.collect.ImmutableList;
+import com.mojang.datafixers.util.Pair;
+
+import com.tiedup.remake.rig.math.OpenMatrix4f;
+
+/**
+ * 0: Root,
+ * 1: Thigh_R,
+ * 2: "Leg_R",
+ * 3: "Knee_R",
+ * 4: "Thigh_L",
+ * 5: "Leg_L",
+ * 6: "Knee_L",
+ * 7: "Torso",
+ * 8: "Chest",
+ * 9: "Head",
+ * 10: "Shoulder_R",
+ * 11: "Arm_R",
+ * 12: "Hand_R",
+ * 13: "Tool_R",
+ * 14: "Elbow_R",
+ * 15: "Shoulder_L",
+ * 16: "Arm_L",
+ * 17: "Hand_L",
+ * 18: "Tool_L",
+ * 19: "Elbow_L"
+**/
+
+public class ClothColliderPresets {
+	public static final List<Pair<Function<ClothSimulatable, OpenMatrix4f>, ClothSimulator.ClothOBBCollider>> BIPED_SLIM = ImmutableList.<Pair<Function<ClothSimulatable, OpenMatrix4f>, ClothSimulator.ClothOBBCollider>>builder()
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[1], new ClothSimulator.ClothOBBCollider(0.125D, 0.24D, 0.125D, 0.0D, 0.22D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[2], new ClothSimulator.ClothOBBCollider(0.125D, 0.1875D, 0.125D, 0.0D, 0.1875D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[4], new ClothSimulator.ClothOBBCollider(0.125D, 0.24D, 0.125D, 0.0D, 0.22D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[5], new ClothSimulator.ClothOBBCollider(0.125D, 0.1875D, 0.125D, 0.0D, 0.1875D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[7], new ClothSimulator.ClothOBBCollider(0.25D, 0.25D, 0.13D, 0.0D, 0.125D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[8], new ClothSimulator.ClothOBBCollider(0.25D, 0.25D, 0.13D, 0.0D, 0.3D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[9], new ClothSimulator.ClothOBBCollider(0.25D, 0.25D, 0.25D, 0.0D, 0.2D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[11], new ClothSimulator.ClothOBBCollider(0.12D, 0.24D, 0.125D, -0.05D, 0.14D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[12], new ClothSimulator.ClothOBBCollider(0.12D, 0.1875D, 0.125D, -0.05D, 0.14D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[16], new ClothSimulator.ClothOBBCollider(0.12D, 0.24D, 0.125D, 0.05D, 0.14D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[17], new ClothSimulator.ClothOBBCollider(0.12D, 0.1875D, 0.125D, 0.05D, 0.14D, 0.0D)))
+			.build();
+	
+	public static final List<Pair<Function<ClothSimulatable, OpenMatrix4f>, ClothSimulator.ClothOBBCollider>> BIPED = ImmutableList.<Pair<Function<ClothSimulatable, OpenMatrix4f>, ClothSimulator.ClothOBBCollider>>builder()
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[1], new ClothSimulator.ClothOBBCollider(0.125D, 0.24D, 0.125D, 0.0D, 0.22D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[2], new ClothSimulator.ClothOBBCollider(0.125D, 0.1875D, 0.125D, 0.0D, 0.1875D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[4], new ClothSimulator.ClothOBBCollider(0.125D, 0.24D, 0.125D, 0.0D, 0.22D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[5], new ClothSimulator.ClothOBBCollider(0.125D, 0.1875D, 0.125D, 0.0D, 0.1875D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[7], new ClothSimulator.ClothOBBCollider(0.25D, 0.25D, 0.13D, 0.0D, 0.125D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[8], new ClothSimulator.ClothOBBCollider(0.25D, 0.25D, 0.13D, 0.0D, 0.3D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[9], new ClothSimulator.ClothOBBCollider(0.25D, 0.25D, 0.25D, 0.0D, 0.2D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[11], new ClothSimulator.ClothOBBCollider(0.13D, 0.24D, 0.13D, -0.0D, 0.14D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[12], new ClothSimulator.ClothOBBCollider(0.13D, 0.1875D, 0.13D, -0.0D, 0.14D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[16], new ClothSimulator.ClothOBBCollider(0.13D, 0.24D, 0.13D, 0.0D, 0.14D, 0.0D)))
+			.add(Pair.of((simObject) -> simObject.getArmature().getPoseMatrices()[17], new ClothSimulator.ClothOBBCollider(0.13D, 0.1875D, 0.13D, 0.0D, 0.14D, 0.0D)))
+			.build();
+}

src/main/java/com/tiedup/remake/rig/cloth/ClothSimulatable.java

@@ -0,0 +1,37 @@
+/*
+ * Derived from Epic Fight (https://github.com/Epic-Fight/epicfight)
+ * by the Epic Fight Team, licensed under GPLv3.
+ * Modifications © 2026 TiedUp! Remake Contributors, distributed under GPLv3.
+ */
+
+package com.tiedup.remake.rig.cloth;
+
+import javax.annotation.Nullable;
+
+import net.minecraft.world.phys.Vec3;
+import com.tiedup.remake.rig.anim.Animator;
+import com.tiedup.remake.rig.armature.Armature;
+import yesman.epicfight.api.physics.SimulatableObject;
+
+public interface ClothSimulatable extends SimulatableObject {
+	@Nullable
+	Armature getArmature();
+	
+	@Nullable
+	Animator getSimulatableAnimator();
+	
+	boolean invalid();
+	public Vec3 getObjectVelocity();
+	public float getYRot();
+	public float getYRotO();
+	
+	// Cloth object requires providing location info for 2 steps before for accurate continuous collide detection.
+	public Vec3 getAccurateCloakLocation(float partialFrame);
+	public Vec3 getAccuratePartialLocation(float partialFrame);
+	public float getAccurateYRot(float partialFrame);
+	public float getYRotDelta(float partialFrame);
+	public float getScale();
+	public float getGravity();
+	
+	ClothSimulator getClothSimulator();
+}