110 lines
3.9 KiB
C#
110 lines
3.9 KiB
C#
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// Copyright (c) Pixel Crushers. All rights reserved.
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using UnityEngine;
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namespace PixelCrushers.DialogueSystem.SequencerCommands
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{
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/// <summary>
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/// Implements sequencer command: "MoveTo(target, [, subject[, duration]])", which matches the
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/// subject to the target's position and rotation. If the subject has a rigidbody, uses
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/// Rigidbody.MovePosition/Rotation; otherwise sets the transform directly.
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///
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/// Arguments:
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/// -# The target.
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/// -# (Optional) The subject; can be speaker, listener, or the name of a game object.
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/// Default: speaker.
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/// -# (Optional) Duration in seconds.
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/// </summary>
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[AddComponentMenu("")] // Hide from menu.
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public class SequencerCommandMoveTo : SequencerCommand
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{
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private const float SmoothMoveCutoff = 0.05f;
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private Transform target;
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private Transform subject;
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private Rigidbody subjectRigidbody;
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private float duration;
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float startTime;
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float endTime;
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Vector3 originalPosition;
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Quaternion originalRotation;
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public void Start()
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{
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// Get the values of the parameters:
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target = GetSubject(0);
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subject = GetSubject(1);
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duration = GetParameterAsFloat(2, 0);
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if (DialogueDebug.logInfo) Debug.Log(string.Format(System.Globalization.CultureInfo.InvariantCulture, "{0}: Sequencer: MoveTo({1}, {2}, {3})", new System.Object[] { DialogueDebug.Prefix, target, subject, duration }));
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if ((target == null) && DialogueDebug.logWarnings) Debug.LogWarning(string.Format("{0}: Sequencer: MoveTo() target '{1}' wasn't found.", new System.Object[] { DialogueDebug.Prefix, GetParameter(0) }));
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if ((subject == null) && DialogueDebug.logWarnings) Debug.LogWarning(string.Format("{0}: Sequencer: MoveTo() subject '{1}' wasn't found.", new System.Object[] { DialogueDebug.Prefix, GetParameter(1) }));
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// Set up the move:
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if ((subject != null) && (target != null) && (subject != target))
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{
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subjectRigidbody = subject.GetComponent<Rigidbody>();
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// If duration is above the cutoff, smoothly move toward target:
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if (duration > SmoothMoveCutoff)
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{
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startTime = DialogueTime.time;
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endTime = startTime + duration;
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originalPosition = subject.position;
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originalRotation = subject.rotation;
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}
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else
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{
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Stop();
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}
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}
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else
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{
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Stop();
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}
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}
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private void SetPosition(Vector3 newPosition, Quaternion newRotation)
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{
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// For efficiency, doesn't warp NavMeshAgent.
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if (subjectRigidbody != null && !subjectRigidbody.isKinematic)
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{
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subjectRigidbody.MoveRotation(newRotation);
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subjectRigidbody.MovePosition(newPosition);
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}
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else
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{
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subject.rotation = newRotation;
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subject.position = newPosition;
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}
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}
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public void Update()
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{
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// Keep smoothing for the specified duration:
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if (DialogueTime.time < endTime)
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{
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float elapsed = (DialogueTime.time - startTime) / duration;
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SetPosition(Vector3.Lerp(originalPosition, target.position, elapsed), Quaternion.Lerp(originalRotation, target.rotation, elapsed));
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}
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else
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{
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Stop();
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}
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}
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public void OnDestroy()
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{
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// Final position:
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if ((subject != null) && (target != null) && (subject != target))
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{
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SetPosition(target.position, target.rotation);
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}
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}
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}
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}
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