71 lines
3.2 KiB
C#
71 lines
3.2 KiB
C#
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using UnityEngine;
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namespace BehaviorDesigner.Runtime.Tasks.Movement
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{
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[TaskDescription("Rotates towards the specified rotation. The rotation can either be specified by a transform or rotation. If the transform "+
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"is used then the rotation will not be used.")]
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[TaskCategory("Movement")]
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[HelpURL("https://www.opsive.com/support/documentation/behavior-designer-movement-pack/")]
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[TaskIcon("04fb8138ea905c04ea39265f778fe1a4", "9bded0edc8b2a2f478fc28396fa41df2")]
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public class RotateTowards : Action
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{
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[Tooltip("Should the 2D version be used?")]
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[UnityEngine.Serialization.FormerlySerializedAs("usePhysics2D")]
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public bool m_UsePhysics2D;
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[Tooltip("The agent is done rotating when the angle is less than this value")]
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[UnityEngine.Serialization.FormerlySerializedAs("rotationEpsilon")]
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public SharedFloat m_RotationEpsilon = 0.5f;
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[Tooltip("The maximum number of angles the agent can rotate in a single tick")]
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[UnityEngine.Serialization.FormerlySerializedAs("maxLookAtRotationDelta")]
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public SharedFloat m_MaxLookAtRotationDelta = 1;
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[Tooltip("Should the rotation only affect the Y axis?")]
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[UnityEngine.Serialization.FormerlySerializedAs("onlyY")]
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public SharedBool m_OnlyY;
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[Tooltip("The GameObject that the agent is rotating towards")]
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[UnityEngine.Serialization.FormerlySerializedAs("target")]
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public SharedGameObject m_Target;
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[Tooltip("If target is null then use the target rotation")]
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[UnityEngine.Serialization.FormerlySerializedAs("targetRotation")]
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public SharedVector3 m_TargetRotation;
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public override TaskStatus OnUpdate()
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{
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var rotation = Target();
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// Return a task status of success once we are done rotating
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if (Quaternion.Angle(transform.rotation, rotation) < m_RotationEpsilon.Value) {
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return TaskStatus.Success;
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}
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// We haven't reached the target yet so keep rotating towards it
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transform.rotation = Quaternion.RotateTowards(transform.rotation, rotation, m_MaxLookAtRotationDelta.Value);
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return TaskStatus.Running;
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}
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// Return targetPosition if targetTransform is null
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private Quaternion Target()
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{
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if (m_Target == null || m_Target.Value == null) {
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return Quaternion.Euler(m_TargetRotation.Value);
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}
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var position = m_Target.Value.transform.position - transform.position;
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if (m_OnlyY.Value) {
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position.y = 0;
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}
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if (m_UsePhysics2D) {
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var angle = Mathf.Atan2(position.y, position.x) * Mathf.Rad2Deg;
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return Quaternion.AngleAxis(angle, Vector3.forward);
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}
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return Quaternion.LookRotation(position);
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}
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// Reset the public variables
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public override void OnReset()
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{
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m_UsePhysics2D = false;
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m_RotationEpsilon = 0.5f;
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m_MaxLookAtRotationDelta = 1f;
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m_OnlyY = false;
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m_Target = null;
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m_TargetRotation = Vector3.zero;
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}
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}
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}
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