From e7ed4d009636804d5dbe05aae9e7ab23b80fdd37 Mon Sep 17 00:00:00 2001
From: aap <aap@papnet.eu>
Date: Tue, 11 Jun 2019 08:59:28 +0200
Subject: added animation system (with skin support for now)

---
 src/animation/AnimBlendAssociation.h | 89 ++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 src/animation/AnimBlendAssociation.h

(limited to 'src/animation/AnimBlendAssociation.h')

diff --git a/src/animation/AnimBlendAssociation.h b/src/animation/AnimBlendAssociation.h
new file mode 100644
index 00000000..7eec69a0
--- /dev/null
+++ b/src/animation/AnimBlendAssociation.h
@@ -0,0 +1,89 @@
+#pragma once
+
+#include "AnimBlendList.h"
+#include "AnimBlendNode.h"
+
+class CAnimBlendHierarchy;
+
+enum {
+	// TODO
+	ASSOC_RUNNING = 1,
+	ASSOC_REPEAT = 2,
+	ASSOC_DELETEFADEDOUT = 4,
+	ASSOC_FADEOUTWHENDONE = 8,
+	ASSOC_PARTIAL = 0x10,
+	ASSOC_MOVEMENT = 0x20,	// ???
+	ASSOC_HAS_TRANSLATION = 0x40,
+	ASSOC_FLAG80 = 0x80,
+	ASSOC_FLAG100 = 0x100,
+	ASSOC_FLAG200 = 0x200,
+	ASSOC_FLAG400 = 0x400,	// not seen yet
+	ASSOC_FLAG800 = 0x800,
+	ASSOC_HAS_X_TRANSLATION = 0x1000,
+};
+
+// 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;
+
+	int numNodes;			// taken from CAnimBlendClumpData::numFrames
+	// 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;
+	int32 animId;
+	int32 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);
+	virtual ~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 UpdateTime(float timeDelta, float relSpeed);
+	bool UpdateBlend(float timeDelta);
+
+	static CAnimBlendAssociation *FromLink(CAnimBlendLink *l) {
+		return (CAnimBlendAssociation*)((uint8*)l - offsetof(CAnimBlendAssociation, link));
+	}
+
+	CAnimBlendAssociation *ctor1(void) { return ::new (this) CAnimBlendAssociation(); }
+	CAnimBlendAssociation *ctor2(CAnimBlendAssociation &other) { return ::new (this) CAnimBlendAssociation(other); }
+	void dtor(void) { this->CAnimBlendAssociation::~CAnimBlendAssociation(); }
+};
+static_assert(sizeof(CAnimBlendAssociation) == 0x40, "CAnimBlendAssociation: error");
-- 
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