1 files changed, 93 insertions, 0 deletions
diff --git a/src/animation/AnimBlendAssociation.h b/src/animation/AnimBlendAssociation.h
new file mode 100644
index 0000000..dbfcb72
--- /dev/null
+++ b/src/animation/AnimBlendAssociation.h
@@ -0,0 +1,93 @@
+#pragma once
+
+#include "AnimBlendList.h"
+#include "AnimBlendNode.h"
+#include "AnimBlendHierarchy.h"
+
+enum {
+	ASSOC_RUNNING = 1,
+	ASSOC_REPEAT = 2,
+	ASSOC_DELETEFADEDOUT = 4,
+	ASSOC_FADEOUTWHENDONE = 8,
+	ASSOC_PARTIAL = 0x10,
+	ASSOC_MOVEMENT = 0x20,	// ???
+	ASSOC_HAS_TRANSLATION = 0x40,
+	ASSOC_HAS_X_TRANSLATION = 0x80,	// for 2d velocity extraction
+	ASSOC_WALK = 0x100,	// for CPed::PlayFootSteps(void)
+	ASSOC_IDLE = 0x200,	// only xpress scratch has it by default, but game adds it to player's idle animations later
+	ASSOC_NOWALK = 0x400,	// see CPed::PlayFootSteps(void)
+	ASSOC_BLOCK = 0x800,	// unused in assoc description, blocks other anims from being played
+	ASSOC_FRONTAL = 0x1000, // anims that we fall to front
+	ASSOC_DRIVING = 0x2000,	// new in VC
+};
+
+// Anim hierarchy associated with a clump
+// Holds the interpolated state of all nodes.
+// Also used as template for other clumps.
+class CAnimBlendAssociation
+{
+public:
+	enum {
+		// callbackType
+		CB_NONE,
+		CB_FINISH,
+		CB_DELETE
+	};
+
+	CAnimBlendLink link;
+
+	int16 numNodes;			// taken from CAnimBlendClumpData::numFrames
+	int16 groupId;		// ID of CAnimBlendAssocGroup this is in
+	// NB: Order of these depends on order of nodes in Clump this was built from
+	CAnimBlendNode *nodes;
+	CAnimBlendHierarchy *hierarchy;
+	float blendAmount;
+	float blendDelta;	// how much blendAmount changes over time
+	float currentTime;
+	float speed;
+	float timeStep;
+	int16 animId;
+	int16 flags;
+	int32 callbackType;
+	void (*callback)(CAnimBlendAssociation*, void*);
+	void *callbackArg;
+
+	bool IsRunning(void) { return !!(flags & ASSOC_RUNNING); }
+	bool IsRepeating(void) { return !!(flags & ASSOC_REPEAT); }
+	bool IsPartial(void) { return !!(flags & ASSOC_PARTIAL); }
+	bool IsMovement(void) { return !!(flags & ASSOC_MOVEMENT); }
+	bool HasTranslation(void) { return !!(flags & ASSOC_HAS_TRANSLATION); }
+	bool HasXTranslation(void) { return !!(flags & ASSOC_HAS_X_TRANSLATION); }
+
+	float GetBlendAmount(float weight) { return IsPartial() ? blendAmount : blendAmount*weight; }
+	CAnimBlendNode *GetNode(int i) { return &nodes[i]; }
+
+	CAnimBlendAssociation(void);
+	CAnimBlendAssociation(CAnimBlendAssociation &other);
+#ifndef FIX_BUGS
+	virtual
+#endif
+	~CAnimBlendAssociation(void);
+	void AllocateAnimBlendNodeArray(int n);
+	void FreeAnimBlendNodeArray(void);
+	void Init(RpClump *clump, CAnimBlendHierarchy *hier);
+	void Init(CAnimBlendAssociation &assoc);
+	void SetBlend(float amount, float delta);
+	void SetFinishCallback(void (*callback)(CAnimBlendAssociation*, void*), void *arg);
+	void SetDeleteCallback(void (*callback)(CAnimBlendAssociation*, void*), void *arg);
+	void SetCurrentTime(float time);
+	void SyncAnimation(CAnimBlendAssociation *other);
+	void Start(float time);
+	void UpdateTimeStep(float timeDelta, float relSpeed);
+	bool UpdateTime(float timeDelta, float relSpeed);
+	bool UpdateBlend(float timeDelta);
+
+	void SetRun(void) { flags |= ASSOC_RUNNING; }
+
+	float GetTimeLeft() { return hierarchy->totalLength - currentTime; }
+	float GetProgress() { return currentTime / hierarchy->totalLength; }
+
+	static CAnimBlendAssociation *FromLink(CAnimBlendLink *l) {
+		return (CAnimBlendAssociation*)((uint8*)l - offsetof(CAnimBlendAssociation, link));
+	}
+};