Animation trees

src/k3anim.h

@@ -0,0 +1,70 @@
+#pragma once
+
+#include<cglm/mat4.h>
+#include<cglm/quat.h>
+#include<stdint.h>
+#include<stddef.h>
+
+struct k3AnimationBone {
+	vec4 translation;
+	versor rotation;
+};
+
+enum k3AnimationOp {
+	k3_ANIM_BASIC,
+	k3_ANIM_BLEND,
+	k3_ANIM_ADD,
+};
+
+struct k3AnimationFountain {
+	float fps;
+	size_t frameCount;
+	size_t bones;
+	uint16_t id;
+	_Alignas(16) struct k3AnimationBone frames[];
+};
+
+struct k3Animation {
+	enum k3AnimationOp op;
+	size_t bones;
+	struct k3AnimationBone *cache;
+	size_t ref;
+};
+
+struct k3AnimationBasic {
+	enum k3AnimationOp op;
+	size_t bones;
+	struct k3AnimationBone *cache;
+	size_t ref;
+	
+	struct k3AnimationFountain *fountain;
+	bool loop;
+};
+
+struct k3AnimationBlend {
+	enum k3AnimationOp op;
+	size_t bones;
+	struct k3AnimationBone *cache;
+	size_t ref;
+	
+	size_t children;
+	float *offsets;
+	float *speeds;
+	float *weights;
+	struct k3Animation **subs;
+};
+
+struct k3AnimationAdd {
+	enum k3AnimationOp op;
+	size_t bones;
+	struct k3AnimationBone *cache;
+	size_t ref;
+	
+	struct k3Animation *sub1;
+	struct k3Animation *sub2;
+	
+	float scale;
+};
+
+bool k3AnimationUpdate(struct k3Animation *anim, float time);
+void k3AnimationFree(struct k3Animation *anim);