#ifndef ACTIONS_H
#define ACTIONS_H

#include <stdlib.h>
#include <stdint.h>

#include <tak.h>

enum A_TYPE { A_PLACE, A_MOVE };

typedef uint32_t action_t;

#define TYPE_SHIFT  24
#define LOC_SHIFT   16
#define DATA0_SHIFT  8

#define GET_TYPE(a)  (enum A_TYPE)((a)>>TYPE_SHIFT)
#define GET_LOC(a)   (int8_t)(((a)>>LOC_SHIFT) & 0xFF)
#define GET_DATA0(a) (uint8_t)(((a)>>DATA0_SHIFT) & 0xFF)
#define GET_DATA1(a) (uint8_t)((a) & 0xFF)

typedef struct action_node_s {
	struct action_node_s *next;
	action_t action;
} action_node_t;

typedef struct action_list_s {
	struct action_node_s *head, *tail;
	uint32_t length;
} action_list_t;

extern int8_t move_deltas[4];

void action_list_init(void);
void action_list_free(action_list_t *list);
action_list_t *action_list_generate(void);
int action_move_to_front(const action_t action, action_list_t *list);

void action_take(const action_t action);
void action_undo(const action_t action);

void action_to_ptn(const action_t action, char* out_ptn);

#endif