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Add **Animation Events**

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This commit is contained in:
Wojtek Figat
2022-01-08 15:06:02 +01:00
parent 79200a784b
commit 82a43dea28
11 changed files with 720 additions and 3 deletions
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78
Source/Engine/Animations/Graph/AnimGroup.Animation.cpp
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@@ -5,7 +5,9 @@
#include "Engine/Content/Assets/SkeletonMask.h"
#include "Engine/Content/Assets/AnimationGraphFunction.h"
#include "Engine/Animations/AlphaBlend.h"
#include "Engine/Animations/AnimEvent.h"
#include "Engine/Animations/InverseKinematics.h"
#include "Engine/Level/Actors/AnimatedModel.h"
namespace
{
@@ -146,6 +148,7 @@ Variant AnimGraphExecutor::SampleAnimation(AnimGraphNode* node, bool loop, float
if (anim == nullptr || !anim->IsLoaded())
return Value::Null;
PROFILE_CPU_ASSET(anim);
const float oldTimePos = prevTimePos;
// Calculate actual time position within the animation node (defined by length and loop mode)
const float pos = GetAnimPos(newTimePos, startTimePos, loop, length);
@@ -180,6 +183,81 @@ Variant AnimGraphExecutor::SampleAnimation(AnimGraphNode* node, bool loop, float
ExtractRootMotion(mapping, rootNodeIndex, anim, animPos, animPrevPos, nodes->Nodes[rootNodeIndex], nodes->RootMotion);
}
// Collect events
if (anim->Events.Count() != 0)
{
ANIM_GRAPH_PROFILE_EVENT("Events");
auto& context = Context.Get();
float eventTimeMin = animPrevPos;
float eventTimeMax = animPos;
if (loop)
{
// Check if animation looped
const float posNotLooped = startTimePos + oldTimePos;
if (posNotLooped < 0.0f || posNotLooped > length)
{
if (context.DeltaTime * speed < 0)
{
// Playback backwards
Swap(eventTimeMin, eventTimeMax);
}
}
}
const float eventTime = animPos / static_cast<float>(anim->Data.FramesPerSecond);
const float eventDeltaTime = (animPos - animPrevPos) / static_cast<float>(anim->Data.FramesPerSecond);
for (const auto& track : anim->Events)
{
for (const auto& k : track.Second.GetKeyframes())
{
if (!k.Value.Instance)
continue;
const float duration = k.Value.Duration > 1 ? k.Value.Duration : 0.0f;
if (k.Time <= eventTimeMax && eventTimeMin <= k.Time + duration)
{
int32 stateIndex = -1;
if (duration > 1)
{
// Begin for continuous event
for (stateIndex = 0; stateIndex < context.Data->Events.Count(); stateIndex++)
{
const auto& e = context.Data->Events[stateIndex];
if (e.Instance == k.Value.Instance && e.Node == node)
break;
}
if (stateIndex == context.Data->Events.Count())
{
auto& e = context.Data->Events.AddOne();
e.Instance = k.Value.Instance;
e.Anim = anim;
e.Node = node;
ASSERT(k.Value.Instance->Is<AnimContinuousEvent>());
((AnimContinuousEvent*)k.Value.Instance)->OnBegin((AnimatedModel*)context.Data->Object, anim, eventTime, eventDeltaTime);
}
}
// Event
k.Value.Instance->OnEvent((AnimatedModel*)context.Data->Object, anim, eventTime, eventDeltaTime);
if (stateIndex != -1)
context.Data->Events[stateIndex].Hit = true;
}
else if (duration > 1)
{
// End for continuous event
for (int32 i = 0; i < context.Data->Events.Count(); i++)
{
const auto& e = context.Data->Events[i];
if (e.Instance == k.Value.Instance && e.Node == node)
{
((AnimContinuousEvent*)k.Value.Instance)->OnEnd((AnimatedModel*)context.Data->Object, anim, eventTime, eventDeltaTime);
context.Data->Events.RemoveAt(i);
break;
}
}
}
}
}
}
return nodes;
}