85 lines
1.7 KiB
C
85 lines
1.7 KiB
C
#ifndef STATE_H
|
|
#define STATE_H
|
|
|
|
#include "twn_game_api.h"
|
|
|
|
|
|
#define POINTS_PER_METER 128
|
|
#define UNDO_STACK_SIZE 32
|
|
#define CAMERA_FOV ((float)M_PI_2 * 0.75f)
|
|
|
|
#define POINT_LIMIT 65534
|
|
#define FACE_LIMIT 2048
|
|
#define OBJECT_LIMIT 16
|
|
#define TEXTURE_LIMIT 32
|
|
|
|
#define INVALID_POINT (POINT_LIMIT+1)
|
|
#define INVALID_FACE (FACE_LIMIT+1)
|
|
#define INVALID_OBJECT (OBJECT_LIMIT+1)
|
|
#define INVALID_TEXTURE (TEXTURE_LIMIT+1)
|
|
|
|
#define CAMERA_ROTATION_SPEED 0.04f
|
|
#define SELECTION_SPHERE_RADIUS 32
|
|
|
|
typedef struct Operation {
|
|
enum {
|
|
OPERATION_MOVE_POINT,
|
|
} kind;
|
|
union {
|
|
struct {
|
|
uint16_t point;
|
|
int16_t delta_x;
|
|
int16_t delta_y;
|
|
int16_t delta_z;
|
|
uint8_t object;
|
|
} move_point;
|
|
} data;
|
|
} Operation;
|
|
|
|
typedef struct Point {
|
|
int16_t x, y, z;
|
|
} Point;
|
|
|
|
/* triangles have p3 = INVALID_POINT */
|
|
/* lines have p2, p3 = INVALID_POINT */
|
|
/* points have p1, p2, p3 = INVALID_POINT */
|
|
typedef struct Face {
|
|
uint16_t p[4];
|
|
uint8_t texture;
|
|
} Face;
|
|
|
|
typedef struct Object {
|
|
char *name;
|
|
bool is_invisible;
|
|
Point position;
|
|
char *textures[TEXTURE_LIMIT];
|
|
uint8_t textures_sz;
|
|
Point rotation;
|
|
Face faces[FACE_LIMIT];
|
|
uint16_t faces_sz;
|
|
} Object;
|
|
|
|
typedef struct State {
|
|
Operation op_stack[UNDO_STACK_SIZE];
|
|
uint32_t op_stack_ptr;
|
|
bool op_active;
|
|
|
|
Vec3 camera_position;
|
|
Vec3 camera_direction;
|
|
float camera_zoom;
|
|
bool camera_is_orthographic;
|
|
/* defaults to wireframe */
|
|
bool solid_display_mode;
|
|
/* positions skipped */
|
|
uint8_t grid_snap_granularity;
|
|
|
|
Point points[POINT_LIMIT];
|
|
uint16_t points_sz;
|
|
|
|
Object *objects;
|
|
uint8_t objects_sz;
|
|
} State;
|
|
|
|
|
|
#endif
|