nuclear@27: #ifndef LIBANIM_H_
nuclear@27: #define LIBANIM_H_
nuclear@27: 
nuclear@27: #include "config.h"
nuclear@27: 
nuclear@27: #include <vmath/vector.h>
nuclear@27: #include <vmath/quat.h>
nuclear@27: #include <vmath/matrix.h>
nuclear@27: #include "track.h"
nuclear@27: 
nuclear@27: enum {
nuclear@27: 	ANM_TRACK_POS_X,
nuclear@27: 	ANM_TRACK_POS_Y,
nuclear@27: 	ANM_TRACK_POS_Z,
nuclear@27: 
nuclear@27: 	ANM_TRACK_ROT_X,
nuclear@27: 	ANM_TRACK_ROT_Y,
nuclear@27: 	ANM_TRACK_ROT_Z,
nuclear@27: 	ANM_TRACK_ROT_W,
nuclear@27: 
nuclear@27: 	ANM_TRACK_SCL_X,
nuclear@27: 	ANM_TRACK_SCL_Y,
nuclear@27: 	ANM_TRACK_SCL_Z,
nuclear@27: 
nuclear@27: 	ANM_NUM_TRACKS
nuclear@27: };
nuclear@27: 
nuclear@27: struct anm_node {
nuclear@27: 	char *name;
nuclear@27: 
nuclear@27: 	struct anm_track tracks[ANM_NUM_TRACKS];
nuclear@27: 	vec3_t pivot;
nuclear@27: 
nuclear@27: 	/* matrix cache */
nuclear@27: 	struct mat_cache {
nuclear@27: 		mat4_t matrix, inv_matrix;
nuclear@27: 		anm_time_t time, inv_time;
nuclear@27: 	} cache;
nuclear@27: 
nuclear@27: 	struct anm_node *parent;
nuclear@27: 	struct anm_node *child;
nuclear@27: 	struct anm_node *next;
nuclear@27: };
nuclear@27: 
nuclear@27: #ifdef __cplusplus
nuclear@27: extern "C" {
nuclear@27: #endif
nuclear@27: 
nuclear@27: /* node constructor and destructor */
nuclear@27: int anm_init_node(struct anm_node *node);
nuclear@27: void anm_destroy_node(struct anm_node *node);
nuclear@27: 
nuclear@27: /* recursively destroy an animation node tree */
nuclear@27: void anm_destroy_node_tree(struct anm_node *tree);
nuclear@27: 
nuclear@27: /* helper functions to allocate/construct and destroy/free with
nuclear@27:  * a single call. They call anm_init_node and anm_destroy_node
nuclear@27:  * internally.
nuclear@27:  */
nuclear@27: struct anm_node *anm_create_node(void);
nuclear@27: void anm_free_node(struct anm_node *node);
nuclear@27: 
nuclear@27: /* recursively destroy and free the nodes of a node tree */
nuclear@27: void anm_free_node_tree(struct anm_node *tree);
nuclear@27: 
nuclear@27: int anm_set_node_name(struct anm_node *node, const char *name);
nuclear@27: const char *anm_get_node_name(struct anm_node *node);
nuclear@27: 
nuclear@27: void anm_set_interpolator(struct anm_node *node, enum anm_interpolator in);
nuclear@27: void anm_set_extrapolator(struct anm_node *node, enum anm_extrapolator ex);
nuclear@27: 
nuclear@27: /* link and unlink nodes with parent/child relations */
nuclear@27: void anm_link_node(struct anm_node *parent, struct anm_node *child);
nuclear@27: int anm_unlink_node(struct anm_node *parent, struct anm_node *child);
nuclear@27: 
nuclear@27: void anm_set_position(struct anm_node *node, vec3_t pos, anm_time_t tm);
nuclear@27: vec3_t anm_get_node_position(struct anm_node *node, anm_time_t tm);
nuclear@27: 
nuclear@27: void anm_set_rotation(struct anm_node *node, quat_t rot, anm_time_t tm);
nuclear@27: quat_t anm_get_node_rotation(struct anm_node *node, anm_time_t tm);
nuclear@27: 
nuclear@27: void anm_set_scaling(struct anm_node *node, vec3_t scl, anm_time_t tm);
nuclear@27: vec3_t anm_get_node_scaling(struct anm_node *node, anm_time_t tm);
nuclear@27: 
nuclear@27: /* these three return the full p/r/s taking hierarchy into account */
nuclear@27: vec3_t anm_get_position(struct anm_node *node, anm_time_t tm);
nuclear@27: quat_t anm_get_rotation(struct anm_node *node, anm_time_t tm);
nuclear@27: vec3_t anm_get_scaling(struct anm_node *node, anm_time_t tm);
nuclear@27: 
nuclear@27: void anm_set_pivot(struct anm_node *node, vec3_t pivot);
nuclear@27: vec3_t anm_get_pivot(struct anm_node *node);
nuclear@27: 
nuclear@27: /* these calculate the matrix and inverse matrix of this node alone */
nuclear@27: void anm_get_node_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm);
nuclear@27: void anm_get_node_inv_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm);
nuclear@27: 
nuclear@27: /* These calculate the matrix and inverse matrix of this node taking hierarchy
nuclear@27:  * into account. The results are cached in thread-specific storage and returned
nuclear@27:  * if there's no change in time or tracks from the last query...
nuclear@27:  */
nuclear@27: void anm_get_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm);
nuclear@27: void anm_get_inv_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm);
nuclear@27: 
nuclear@27: /* those return the start and end times of the whole tree */
nuclear@27: anm_time_t anm_get_start_time(struct anm_node *node);
nuclear@27: anm_time_t anm_get_end_time(struct anm_node *node);
nuclear@27: 
nuclear@27: #ifdef __cplusplus
nuclear@27: }
nuclear@27: #endif
nuclear@27: 
nuclear@27: #endif	/* LIBANIM_H_ */