87 lines
2.6 KiB
C#
87 lines
2.6 KiB
C#
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using UnityEngine;
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using System.Collections;
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namespace RootMotion.FinalIK {
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/// <summary>
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/// Dedicated abstrac base component for the Grounding solver.
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/// </summary>
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public abstract class Grounder: MonoBehaviour {
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#region Main Interface
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/// <summary>
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/// The master weight. Use this to fade in/out the grounding effect.
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/// </summary>
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[Tooltip("The master weight. Use this to fade in/out the grounding effect.")]
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[Range(0f, 1f)] public float weight = 1f;
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/// <summary>
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/// The %Grounding solver. Not to confuse with IK solvers.
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/// </summary>
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[Tooltip("The Grounding solver. Not to confuse with IK solvers.")]
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public Grounding solver = new Grounding();
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/// <summary>
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/// Delegate for Grounder events.
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/// </summary>
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public delegate void GrounderDelegate();
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/// <summary>
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/// Called before the Grounder updates it's solver.
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/// </summary>
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public GrounderDelegate OnPreGrounder;
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/// <summary>
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/// Called after the Grounder has updated it's solver and before the IK is applied.
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/// </summary>
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public GrounderDelegate OnPostGrounder;
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/// <summary>
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/// Resets this Grounder so characters can be teleported instananeously.
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/// </summary>
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public abstract void ResetPosition();
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#endregion Main Interface
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public bool initiated { get; protected set; }
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// Gets the spine bend direction
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protected Vector3 GetSpineOffsetTarget() {
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Vector3 sum = Vector3.zero;
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for (int i = 0; i < solver.legs.Length; i++) {
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sum += GetLegSpineBendVector(solver.legs[i]);
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}
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return sum;
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}
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// Logs the warning if no other warning has beed logged in this session.
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protected void LogWarning(string message) {
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Warning.Log(message, transform);
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}
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// Gets the bend direction for a foot
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private Vector3 GetLegSpineBendVector(Grounding.Leg leg) {
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Vector3 spineTangent = GetLegSpineTangent(leg);
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float dotF = (Vector3.Dot(solver.root.forward, spineTangent.normalized) + 1) * 0.5f;
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float w = (leg.IKPosition - leg.transform.position).magnitude;
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return spineTangent * w * dotF;
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}
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// Gets the direction from the root to the foot (ortho-normalized to root.up)
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private Vector3 GetLegSpineTangent(Grounding.Leg leg) {
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Vector3 tangent = leg.transform.position - solver.root.position;
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if (!solver.rotateSolver || solver.root.up == Vector3.up) return new Vector3(tangent.x, 0f, tangent.z);
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Vector3 normal = solver.root.up;
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Vector3.OrthoNormalize(ref normal, ref tangent);
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return tangent;
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}
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// Open the User Manual url
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protected abstract void OpenUserManual();
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// Open the Script Reference url
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protected abstract void OpenScriptReference();
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}
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}
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