Luis Gonzalez
72 lines
1.6 KiB
C#
72 lines
1.6 KiB
C#
using Unity.Entities;
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using UnityEngine;
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////////////////////////////////////////////////////////////////////////////////////////
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namespace Rukhanka.Hybrid
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{
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public class FABRIKBaker: Baker<FABRIKAuthoring>
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{
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public override void Bake(FABRIKAuthoring a)
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{
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if (a.target == null)
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{
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Debug.LogError($"'{a.name}': IK target is not set.");
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return;
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}
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if (a.tip == null)
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{
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Debug.LogError($"'{a.name}': IK tip (end of chain) is not set.");
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return;
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}
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if (a.tip == a.target)
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{
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Debug.LogError($"'{a.name}': IK tip and target must not be same transform.");
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return;
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}
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if (a.tip == a.transform)
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{
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Debug.LogError($"'{a.name}': IK tip and root must not be same transform.");
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return;
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}
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if (!CheckReachability(a.transform, a.tip))
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{
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Debug.LogError($"'{a.name}' transform cannot be reached from '{a.tip}'. Check your skeleton hierarchy.");
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return;
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}
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var ikComponent = new FABRIKComponent()
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{
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target = GetEntity(a.target, TransformUsageFlags.Dynamic),
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tip = GetEntity(a.tip, TransformUsageFlags.Dynamic),
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numIterations = a.numIterations,
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threshold = a.threshold,
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weight = a.weight
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};
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var e = GetEntity(TransformUsageFlags.Dynamic);
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AddComponent(e, ikComponent);
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}
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////////////////////////////////////////////////////////////////////////////////////////
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bool CheckReachability(Transform root, Transform tip)
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{
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var isReachable = false;
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var curNode = tip;
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while (!isReachable && curNode != null)
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{
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isReachable = curNode == root;
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curNode = curNode.parent;
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}
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return isReachable;
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}
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}
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}
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