Import Cai1Hsu/re3 @ miami (reVC / GTA:VC decompilation)HEADmiami

Snapshot import (no upstream history) into git.ancap.in.ua/claude, per @lzcnt.
Source: https://github.com/Cai1Hsu/re3 branch miami.

1 files changed, 314 insertions, 0 deletions

diff --git a/src/animation/AnimBlendNode.cpp b/src/animation/AnimBlendNode.cpp
new file mode 100644
index 0000000..6352c11
--- /dev/null
+++ b/src/animation/AnimBlendNode.cpp
@@ -0,0 +1,314 @@
+#include "common.h"
+
+#include "AnimBlendAssociation.h"
+#include "AnimBlendNode.h"
+
+void 
+CAnimBlendNode::Init(void)
+{
+	frameA = -1;
+	frameB = -1;
+	remainingTime = 0.0f;
+	sequence = nil;
+	association = nil;
+}
+
+bool
+CAnimBlendNode::Update(CVector &trans, CQuaternion &rot, float weight)
+{
+	bool looped = false;
+
+	trans = CVector(0.0f, 0.0f, 0.0f);
+	rot = CQuaternion(0.0f, 0.0f, 0.0f, 0.0f);
+
+	if(association->IsRunning()){
+		remainingTime -= association->timeStep;
+		if(remainingTime <= 0.0f)
+			looped = NextKeyFrame();
+	}
+
+	float blend = association->GetBlendAmount(weight);
+	if(blend > 0.0f){
+		KeyFrameTrans *kfA = (KeyFrameTrans*)sequence->GetKeyFrame(frameA);
+		KeyFrameTrans *kfB = (KeyFrameTrans*)sequence->GetKeyFrame(frameB);
+		float t = kfA->deltaTime == 0.0f ? 0.0f : (kfA->deltaTime - remainingTime)/kfA->deltaTime;
+		if(sequence->type & CAnimBlendSequence::KF_TRANS){
+			trans = kfB->translation + t*(kfA->translation - kfB->translation);
+			trans *= blend;
+		}
+		if(sequence->type & CAnimBlendSequence::KF_ROT){
+			rot.Slerp(kfB->rotation, kfA->rotation, theta, invSin, t);
+			rot *= blend;
+		}
+	}
+
+	return looped;
+}
+
+bool
+CAnimBlendNode::UpdateCompressed(CVector &trans, CQuaternion &rot, float weight)
+{
+	bool looped = false;
+
+	trans = CVector(0.0f, 0.0f, 0.0f);
+	rot = CQuaternion(0.0f, 0.0f, 0.0f, 0.0f);
+
+	if(association->IsRunning()){
+		remainingTime -= association->timeStep;
+		if(remainingTime <= 0.0f)
+			looped = NextKeyFrameCompressed();
+	}
+
+	float blend = association->GetBlendAmount(weight);
+	if(blend > 0.0f){
+		KeyFrameTransCompressed *kfA = (KeyFrameTransCompressed*)sequence->GetKeyFrameCompressed(frameA);
+		KeyFrameTransCompressed *kfB = (KeyFrameTransCompressed*)sequence->GetKeyFrameCompressed(frameB);
+		float t = kfA->deltaTime == 0 ? 0.0f : (kfA->GetDeltaTime() - remainingTime)/kfA->GetDeltaTime();
+		if(sequence->type & CAnimBlendSequence::KF_TRANS){
+			CVector transA, transB;
+			kfA->GetTranslation(&transA);
+			kfB->GetTranslation(&transB);
+			trans = transB + t*(transA - transB);
+			trans *= blend;
+		}
+		if(sequence->type & CAnimBlendSequence::KF_ROT){
+			CQuaternion rotA, rotB;
+			kfA->GetRotation(&rotA);
+			kfB->GetRotation(&rotB);
+			rot.Slerp(rotB, rotA, theta, invSin, t);
+			rot *= blend;
+		}
+	}
+
+	return looped;
+}
+
+bool
+CAnimBlendNode::NextKeyFrame(void)
+{
+	bool looped;
+
+	if(sequence->numFrames <= 1)
+		return false;
+
+	looped = false;
+	frameB = frameA;
+
+	// Advance as long as we have to
+	while(remainingTime <= 0.0f){
+		frameA++;
+
+		if(frameA >= sequence->numFrames){
+			// reached end of animation
+			if(!association->IsRepeating()){
+				frameA--;
+				remainingTime = 0.0f;
+				return false;
+			}
+			looped = true;
+			frameA = 0;
+		}
+
+		remainingTime += sequence->GetKeyFrame(frameA)->deltaTime;
+	}
+
+	frameB = frameA - 1;
+	if(frameB < 0)
+		frameB += sequence->numFrames;
+
+	CalcDeltas();
+	return looped;
+}
+
+bool
+CAnimBlendNode::NextKeyFrameCompressed(void)
+{
+	bool looped;
+
+	if(sequence->numFrames <= 1)
+		return false;
+
+	looped = false;
+	frameB = frameA;
+
+	// Advance as long as we have to
+	while(remainingTime <= 0.0f){
+		frameA++;
+
+		if(frameA >= sequence->numFrames){
+			// reached end of animation
+			if(!association->IsRepeating()){
+				frameA--;
+				remainingTime = 0.0f;
+				return false;
+			}
+			looped = true;
+			frameA = 0;
+		}
+
+		remainingTime += sequence->GetKeyFrameCompressed(frameA)->GetDeltaTime();
+	}
+
+	frameB = frameA - 1;
+	if(frameB < 0)
+		frameB += sequence->numFrames;
+
+	CalcDeltasCompressed();
+	return looped;
+}
+
+// Set animation to time t
+bool
+CAnimBlendNode::FindKeyFrame(float t)
+{
+	if(sequence->numFrames < 1)
+		return false;
+
+	frameA = 0;
+	frameB = frameA;
+
+	if(sequence->numFrames == 1){
+		remainingTime = 0.0f;
+	}else{
+		// advance until t is between frameB and frameA
+		while (t > sequence->GetKeyFrame(++frameA)->deltaTime) {
+			t -= sequence->GetKeyFrame(frameA)->deltaTime;
+			if (frameA + 1 >= sequence->numFrames) {
+				// reached end of animation
+				if (!association->IsRepeating()) {
+					CalcDeltas();
+					remainingTime = 0.0f;
+					return false;
+				}
+				frameA = 0;
+			}
+			frameB = frameA;
+		}
+
+		remainingTime = sequence->GetKeyFrame(frameA)->deltaTime - t;
+	}
+
+	CalcDeltas();
+	return true;
+}
+
+bool
+CAnimBlendNode::SetupKeyFrameCompressed(void)
+{
+	if(sequence->numFrames < 1)
+		return false;
+
+	frameA = 1;
+	frameB = 0;
+
+	if(sequence->numFrames == 1){
+		frameA = 0;
+		remainingTime = 0.0f;
+	}else
+		remainingTime = sequence->GetKeyFrameCompressed(frameA)->GetDeltaTime();
+
+	CalcDeltasCompressed();
+	return true;
+}
+
+void
+CAnimBlendNode::CalcDeltas(void)
+{
+	if((sequence->type & CAnimBlendSequence::KF_ROT) == 0)
+		return;
+	KeyFrame *kfA = sequence->GetKeyFrame(frameA);
+	KeyFrame *kfB = sequence->GetKeyFrame(frameB);
+	float cos = DotProduct(kfA->rotation, kfB->rotation);
+	if(cos > 1.0f)
+		cos = 1.0f;
+	theta = Acos(cos);
+	invSin = theta == 0.0f ?  0.0f : 1.0f/Sin(theta);
+}
+
+void
+CAnimBlendNode::CalcDeltasCompressed(void)
+{
+	if((sequence->type & CAnimBlendSequence::KF_ROT) == 0)
+		return;
+	KeyFrameCompressed *kfA = sequence->GetKeyFrameCompressed(frameA);
+	KeyFrameCompressed *kfB = sequence->GetKeyFrameCompressed(frameB);
+	CQuaternion rotA, rotB;
+	kfA->GetRotation(&rotA);
+	kfB->GetRotation(&rotB);
+	float cos = DotProduct(rotA, rotB);
+	if(cos < 0.0f){
+		rotB *= -1.0f;
+		kfB->SetRotation(rotB);
+	}
+	cos = DotProduct(rotA, rotB);
+	if(cos > 1.0f)
+		cos = 1.0f;
+	theta = Acos(cos);
+	invSin = theta == 0.0f ?  0.0f : 1.0f/Sin(theta);
+}
+
+void
+CAnimBlendNode::GetCurrentTranslation(CVector &trans, float weight)
+{
+	trans = CVector(0.0f, 0.0f, 0.0f);
+
+	float blend = association->GetBlendAmount(weight);
+	if(blend > 0.0f){
+		KeyFrameTrans *kfA = (KeyFrameTrans*)sequence->GetKeyFrame(frameA);
+		KeyFrameTrans *kfB = (KeyFrameTrans*)sequence->GetKeyFrame(frameB);
+		float t = kfA->deltaTime == 0.0f ? 0.0f : (kfA->deltaTime - remainingTime)/kfA->deltaTime;
+		if(sequence->type & CAnimBlendSequence::KF_TRANS){
+			trans = kfB->translation + t*(kfA->translation - kfB->translation);
+			trans *= blend;
+		}
+	}
+}
+
+void
+CAnimBlendNode::GetCurrentTranslationCompressed(CVector &trans, float weight)
+{
+	trans = CVector(0.0f, 0.0f, 0.0f);
+
+	float blend = association->GetBlendAmount(weight);
+	if(blend > 0.0f){
+		KeyFrameTransCompressed *kfA = (KeyFrameTransCompressed*)sequence->GetKeyFrameCompressed(frameA);
+		KeyFrameTransCompressed *kfB = (KeyFrameTransCompressed*)sequence->GetKeyFrameCompressed(frameB);
+		float t = kfA->deltaTime == 0 ? 0.0f : (kfA->GetDeltaTime() - remainingTime)/kfA->GetDeltaTime();
+		if(sequence->type & CAnimBlendSequence::KF_TRANS){
+			CVector transA, transB;
+			kfA->GetTranslation(&transA);
+			kfB->GetTranslation(&transB);
+			trans = transB + t*(transA - transB);
+			trans *= blend;
+		}
+	}
+}
+
+void
+CAnimBlendNode::GetEndTranslation(CVector &trans, float weight)
+{
+	trans = CVector(0.0f, 0.0f, 0.0f);
+
+	float blend = association->GetBlendAmount(weight);
+	if(blend > 0.0f){
+		KeyFrameTrans *kf = (KeyFrameTrans*)sequence->GetKeyFrame(sequence->numFrames-1);
+		if(sequence->type & CAnimBlendSequence::KF_TRANS)
+			trans = kf->translation * blend;
+	}
+}
+
+void
+CAnimBlendNode::GetEndTranslationCompressed(CVector &trans, float weight)
+{
+	trans = CVector(0.0f, 0.0f, 0.0f);
+
+	float blend = association->GetBlendAmount(weight);
+	if(blend > 0.0f){
+		KeyFrameTransCompressed *kf = (KeyFrameTransCompressed*)sequence->GetKeyFrameCompressed(sequence->numFrames-1);
+		if(sequence->type & CAnimBlendSequence::KF_TRANS){
+			CVector pos;
+			kf->GetTranslation(&pos);
+			trans = pos * blend;
+		}
+	}
+}