#include "types.h"
#include "constants.h"

enum {
	STATE_INACTIVE = 0,
	STATE_ACTIVE,
	STATE_REMOVED,
	STATE_DEAD
};

struct player {
	uint8_t state;
	uint8_t input;
	vec2 pos;
	vec2 vel;
};

struct ball {
	uint8_t state;
	vec2 pos;
	vec2 vel;
};

struct snapshot {
	char active;
	uint32_t tick;
	int32_t players_len;
	struct player *players;
	int32_t balls_len;
	struct ball *balls;
};

int dp_snapshot_init(struct snapshot *, int32_t players_len, int32_t balls_len);
void dp_snapshot_deinit(struct snapshot *);

int dp_snapshot_put_player(struct snapshot *, int32_t id, const struct player *);
struct player *dp_snapshot_get_player(struct snapshot *, int32_t id);
int dp_snapshot_remove_player(struct snapshot *, int32_t id);
int dp_snapshot_set_player_input(struct snapshot *, int32_t id, uint8_t input);

int dp_snapshot_put_ball(struct snapshot *, int32_t id, const struct ball *);
struct ball *dp_snapshot_get_ball(struct snapshot *, int32_t id);
int dp_snapshot_remove_ball(struct snapshot *, int32_t id);