public void BuildCollision()
{
if (this == null)
{
path.OnPathChanged -= Path_OnPathChanged;
}
if (path != null)
{
Transform capsuleRoot = transform.Find("CapsuleRoot");
if (capsuleRoot != null)
{
if (Application.IsPlaying(this))
{
Destroy(capsuleRoot.gameObject);
}
else
{
DestroyImmediate(capsuleRoot.gameObject);
}
}
if (useCapsules)
{
MeshCollider mc = GetComponent <MeshCollider>();
if (mc != null)
{
if (Application.IsPlaying(this))
{
Destroy(mc);
}
else
{
DestroyImmediate(mc);
}
}
capsuleRoot = new GameObject("CapsuleRoot").transform;
capsuleRoot.SetParent(transform);
capsuleRoot.ResetLocals();
colliders.Clear();
int numCapsules = Mathf.CeilToInt(path.GetLength() * capsulesPerUnit);
for (int i = 1; i <= numCapsules; i++)
{
float prevAlpha = (i - 1) / (float)numCapsules;
float alpha = i / (float)numCapsules;
Vector3 prevPos = path.GetPoint(prevAlpha);
Vector3 pos = path.GetPoint(alpha);
GameObject capsuleGo = new GameObject("CapsuleCollider", typeof(CapsuleCollider));
CapsuleCollider capsule = capsuleGo.GetComponent <CapsuleCollider>();
capsule.transform.SetParent(capsuleRoot);
capsule.transform.position = (prevPos + pos) / 2f;
Vector3 lookDir = pos - prevPos;
if (lookDir != Vector3.zero)
{
capsule.transform.forward = lookDir.normalized;
}
capsule.direction = 2; // Z
float prevThickness = thicknessCurve.Evaluate(prevAlpha);
float thickness = thicknessCurve.Evaluate(alpha);
capsule.radius = path.Radius * (prevThickness + thickness) / 2f;
capsule.height = (pos - prevPos).magnitude + capsule.radius;
capsule.isTrigger = false;
capsule.gameObject.layer = colliderLayer.layer;
colliders.Add(capsule);
}
RefreshActiveColliders();
}
else
{
MeshFilter mf = GetComponent <MeshFilter>();
if (mf == null)
{
mf = path.GetComponent <MeshFilter>();
}
if (mf != null)
{
MeshCollider mc = mf.gameObject.GetComponent <MeshCollider>();
if (mc == null)
{
mc = mf.gameObject.AddComponent <MeshCollider>();
}
mc.sharedMesh = mf.sharedMesh;
}
}
#if UNITY_EDITOR
EditorUtility.SetDirty(this);
#endif
OnCollisionChanged(this);
}
}
