public override void Start()
{
base.Start();
if (AnimationComponent == null)
throw new InvalidOperationException("The animation component is not set");
if (AnimationIdle == null)
throw new InvalidOperationException("Idle animation is not set");
if (AnimationWalk == null)
throw new InvalidOperationException("Walking animation is not set");
if (AnimationRun == null)
throw new InvalidOperationException("Running animation is not set");
if (AnimationPunch == null)
throw new InvalidOperationException("Punching animation is not set");
// By setting a custom blend tree builder we can override the default behavior of the animation system
// Instead, BuildBlendTree(FastList<AnimationOperation> blendStack) will be called each frame
AnimationComponent.BlendTreeBuilder = this;
animEvaluatorIdle = AnimationComponent.Blender.CreateEvaluator(AnimationIdle);
animEvaluatorWalk = AnimationComponent.Blender.CreateEvaluator(AnimationWalk);
animEvaluatorRun = AnimationComponent.Blender.CreateEvaluator(AnimationRun);
animEvaluatorPunch = AnimationComponent.Blender.CreateEvaluator(AnimationPunch);
// Initial walk lerp
walkLerpFactor = 0;
animEvaluatorWalkLerp1 = animEvaluatorIdle;
animEvaluatorWalkLerp2 = animEvaluatorWalk;
animationClipWalkLerp1 = AnimationIdle;
animationClipWalkLerp2 = AnimationWalk;
}
public override void Start()
{
base.Start();
if (AnimationComponent == null)
throw new InvalidOperationException("The animation component is not set");
if (AnimationIdle == null)
throw new InvalidOperationException("Idle animation is not set");
if (AnimationWalk == null)
throw new InvalidOperationException("Walking animation is not set");
if (AnimationShoot == null)
throw new InvalidOperationException("Shooting animation is not set");
if (AnimationReload == null)
throw new InvalidOperationException("Reloading animation is not set");
// By setting a custom blend tree builder we can override the default behavior of the animation system
// Instead, BuildBlendTree(FastList<AnimationOperation> blendStack) will be called each frame
AnimationComponent.BlendTreeBuilder = this;
animEvaluatorIdle = AnimationComponent.Blender.CreateEvaluator(AnimationIdle);
animEvaluatorWalk = AnimationComponent.Blender.CreateEvaluator(AnimationWalk);
animEvaluatorShoot = AnimationComponent.Blender.CreateEvaluator(AnimationShoot);
animEvaluatorReload = AnimationComponent.Blender.CreateEvaluator(AnimationReload);
currentEvaluator = animEvaluatorIdle;
currentClip = AnimationIdle;
}
private void UpdateWalking()
{
if (runSpeed < WalkThreshold)
{
walkLerpFactor = runSpeed / WalkThreshold;
walkLerpFactor = (float)Math.Sqrt(walkLerpFactor); // Idle-Walk blend looks really werid, so skew the factor towards walking
animEvaluatorWalkLerp1 = animEvaluatorIdle;
animEvaluatorWalkLerp2 = animEvaluatorWalk;
animationClipWalkLerp1 = AnimationIdle;
animationClipWalkLerp2 = AnimationWalk;
}
else
{
walkLerpFactor = (runSpeed - WalkThreshold) / (1.0f - WalkThreshold);
animEvaluatorWalkLerp1 = animEvaluatorWalk;
animEvaluatorWalkLerp2 = animEvaluatorRun;
animationClipWalkLerp1 = AnimationWalk;
animationClipWalkLerp2 = AnimationRun;
}
// Use DrawTime rather than UpdateTime
var time = Game.DrawTime;
// This update function will account for animation with different durations, keeping a current time relative to the blended maximum duration
long blendedMaxDuration = 0;
blendedMaxDuration =
(long)MathUtil.Lerp(animationClipWalkLerp1.Duration.Ticks, animationClipWalkLerp2.Duration.Ticks, walkLerpFactor);
var currentTicks = TimeSpan.FromTicks((long)(currentTime * blendedMaxDuration));
currentTicks = blendedMaxDuration == 0
? TimeSpan.Zero
: TimeSpan.FromTicks((currentTicks.Ticks + (long)(time.Elapsed.Ticks * TimeFactor)) %
blendedMaxDuration);
currentTime = ((double)currentTicks.Ticks / (double)blendedMaxDuration);
}
/// <summary>
/// Creates a new animation pop operation.
/// </summary>
/// <param name="evaluator">The evaluator.</param>
/// <param name="time">The time.</param>
/// <returns></returns>
public static AnimationOperation NewPop(AnimationClipEvaluator evaluator, TimeSpan time)
{
return new AnimationOperation { Type = AnimationOperationType.Pop, Evaluator = evaluator, Time = time };
}
/// <summary>
/// Creates a new animation push operation.
/// </summary>
/// <param name="evaluator">The evaluator.</param>
/// <returns></returns>
public static AnimationOperation NewPush(AnimationClipEvaluator evaluator)
{
return new AnimationOperation { Type = AnimationOperationType.Push, Evaluator = evaluator, Time = TimeSpan.Zero };
}
public AnimationClipEvaluator CreateEvaluator(AnimationClip clip)
{
// Check if this clip has already been used
if (clips.Add(clip))
{
// If new clip, let's scan its channel to add new ones.
foreach (var curve in clip.Channels)
{
Channel channel;
if (channelsByName.TryGetValue(curve.Key, out channel))
{
// TODO: Check if channel matches
}
else
{
// New channel, add it to every evaluator
// Find blend type
BlendType blendType;
var elementType = curve.Value.ElementType;
if (elementType == typeof(Quaternion))
{
blendType = BlendType.Quaternion;
}
else if (elementType == typeof(float))
{
blendType = BlendType.Float1;
}
else if (elementType == typeof(Vector2))
{
blendType = BlendType.Float2;
}
else if (elementType == typeof(Vector3))
{
blendType = BlendType.Float3;
}
else if (elementType == typeof(Vector4))
{
blendType = BlendType.Float4;
}
else
{
blendType = BlittableHelper.IsBlittable(elementType) ? BlendType.Blit : BlendType.Object;
}
// Create channel structure
channel.BlendType = blendType;
channel.Offset = blendType == BlendType.Object ? objectsSize : structureSize;
channel.PropertyName = curve.Key;
channel.Size = curve.Value.ElementSize;
// Add channel
channelsByName.Add(channel.PropertyName, channel);
channels.Add(channel);
if (blendType == BlendType.Object)
{
objectsSize++;
}
else
{
// Update new structure size
// We also reserve space for a float that will specify channel existence and factor in case of subtree blending
structureSize += sizeof(float) + channel.Size;
}
// Add new channel update info to every evaluator
// TODO: Maybe it's better lazily done? (avoid need to store list of all evaluators)
foreach (var currentEvaluator in evaluators)
{
currentEvaluator.AddChannel(ref channel);
}
}
}
}
// Update results to fit the new data size
lock (availableResultsPool)
{
foreach (var result in availableResultsPool)
{
if (result.DataSize < structureSize)
{
result.DataSize = structureSize;
result.Data = new byte[structureSize];
}
}
}
// Create evaluator and store it in list of instantiated evaluators
AnimationClipEvaluator evaluator;
lock (evaluatorPool)
{
if (evaluatorPool.Count > 0)
{
evaluator = evaluatorPool.Pop();
}
else
{
evaluator = new AnimationClipEvaluator();
}
}
evaluator.Initialize(clip, channels);
evaluators.Add(evaluator);
return(evaluator);
}
public AnimationClipEvaluator CreateEvaluator(AnimationClip clip)
{
// Check if this clip has already been used
if (clips.Add(clip))
{
// If new clip, let's scan its channel to add new ones.
foreach (var curve in clip.Channels)
{
Channel channel;
if (channelsByName.TryGetValue(curve.Key, out channel))
{
// TODO: Check if channel matches
}
else
{
// New channel, add it to every evaluator
// Find blend type
BlendType blendType;
var elementType = curve.Value.ElementType;
if (elementType == typeof(Quaternion))
{
blendType = BlendType.Quaternion;
}
else if (elementType == typeof(float))
{
blendType = BlendType.Float1;
}
else if (elementType == typeof(Vector2))
{
blendType = BlendType.Float2;
}
else if (elementType == typeof(Vector3))
{
blendType = BlendType.Float3;
}
else if (elementType == typeof(Vector4))
{
blendType = BlendType.Float4;
}
else
{
blendType = BlittableHelper.IsBlittable(elementType) ? BlendType.Blit : BlendType.Object;
}
// Create channel structure
channel.BlendType = blendType;
channel.Offset = blendType == BlendType.Object ? objectsSize : structureSize;
channel.PropertyName = curve.Key;
channel.Size = curve.Value.ElementSize;
// Add channel
channelsByName.Add(channel.PropertyName, channel);
channels.Add(channel);
if (blendType == BlendType.Object)
{
objectsSize++;
}
else
{
// Update new structure size
// We also reserve space for a float that will specify channel existence and factor in case of subtree blending
structureSize += sizeof(float) + channel.Size;
}
// Add new channel update info to every evaluator
// TODO: Maybe it's better lazily done? (avoid need to store list of all evaluators)
foreach (var currentEvaluator in evaluators)
{
currentEvaluator.AddChannel(ref channel);
}
}
}
}
// Update results to fit the new data size
lock (availableResultsPool)
{
foreach (var result in availableResultsPool)
{
if (result.DataSize < structureSize)
{
result.DataSize = structureSize;
result.Data = new byte[structureSize];
}
}
}
// Create evaluator and store it in list of instantiated evaluators
AnimationClipEvaluator evaluator;
lock (evaluatorPool)
{
if (evaluatorPool.Count > 0)
{
evaluator = evaluatorPool.Pop();
}
else
{
evaluator = new AnimationClipEvaluator();
}
}
evaluator.Initialize(clip, channels);
evaluators.Add(evaluator);
return evaluator;
}
public void ReleaseEvaluator(AnimationClipEvaluator evaluator)
{
lock (evaluatorPool)
{
evaluators.Remove(evaluator);
evaluator.Cleanup();
evaluatorPool.Push(evaluator);
}
}
/// <summary>
/// Creates a new animation pop operation.
/// </summary>
/// <param name="evaluator">The evaluator.</param>
/// <param name="time">The time.</param>
/// <returns></returns>
public static AnimationOperation NewPop(AnimationClipEvaluator evaluator, TimeSpan time)
{
return(new AnimationOperation {
Type = AnimationOperationType.Pop, Evaluator = evaluator, Time = time
});
}
/// <summary>
/// Creates a new animation push operation.
/// </summary>
/// <param name="evaluator">The evaluator.</param>
/// <returns></returns>
public static AnimationOperation NewPush(AnimationClipEvaluator evaluator)
{
return(new AnimationOperation {
Type = AnimationOperationType.Push, Evaluator = evaluator, Time = TimeSpan.Zero
});
}
private void SwitchToDefaultState()
{
currentTime = (state == defaultState) ? currentTime : 0;
state = defaultState;
if (state == AnimationState.Idle)
{
currentClip = AnimationIdle;
currentEvaluator = animEvaluatorIdle;
}
else
{
currentClip = AnimationWalk;
currentEvaluator = animEvaluatorWalk;
}
}
public override void Update()
{
runSpeedEvent.TryReceive(out runSpeed);
defaultState = (runSpeed > 0.15f) ? AnimationState.Walking : AnimationState.Idle;
WeaponFiredResult weaponResult;
var didFire = weaponFiredEvent.TryReceive(out weaponResult);
bool isReloading;
var didReload = isReloadingEvent.TryReceive(out isReloading);
isReloading |= didReload;
// Update current animation
var currentTicks = TimeSpan.FromTicks((long)(currentTime * currentClip.Duration.Ticks));
var updatedTicks = currentTicks.Ticks + (long)(Game.DrawTime.Elapsed.Ticks * TimeFactor);
var currentClipFinished = (updatedTicks >= currentClip.Duration.Ticks);
currentTicks = TimeSpan.FromTicks(updatedTicks % currentClip.Duration.Ticks);
currentTime = ((double)currentTicks.Ticks / (double)currentClip.Duration.Ticks);
// State change if necessary
if (isReloading)
{
if (state != AnimationState.Reloading)
{
currentTime = 0;
state = AnimationState.Reloading;
currentClip = AnimationReload;
currentEvaluator = animEvaluatorReload;
}
}
else
if (didFire)
{
if (state != AnimationState.Shooting)
{
currentTime = 0;
state = AnimationState.Shooting;
currentClip = AnimationShoot;
currentEvaluator = animEvaluatorShoot;
}
}
else
if (currentClipFinished)
{
SwitchToDefaultState();
}
else
if ((state == AnimationState.Idle || state == AnimationState.Walking) && state != defaultState)
{
SwitchToDefaultState();
}
}