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/*
This file is part of ct.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with ct. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef ACTIONS_H
#define ACTIONS_H
#include <stdint.h>
#include <stdlib.h>
#include <tak.h>
// ===================================================================
// Types
// ===================================================================
enum A_TYPE { A_PLACE, A_MOVE };
typedef uint32_t action_t;
#define A_DATA1_SHIFT 24
#define A_DATA0_SHIFT 16
#define A_LOC_SHIFT 8
#define A_GET_DATA1(a) (enum A_TYPE)((a) >> A_DATA1_SHIFT)
#define A_GET_DATA0(a) (int8_t)(((a) >> A_DATA0_SHIFT) & 0xFF)
#define A_GET_LOC(a) (uint8_t)(((a) >> A_LOC_SHIFT) & 0xFF)
#define A_GET_TYPE(a) (uint8_t)((a)&0xFF)
#define A_BUILD(type, loc, data0, data1) \
((type) | (loc) << A_LOC_SHIFT | (data0) << A_DATA0_SHIFT | \
(data1) << A_DATA1_SHIFT)
// ===================================================================
// Variables
// ===================================================================
extern int8_t move_deltas[4];
// ===================================================================
// Methods
// ===================================================================
void actions_init(const uint8_t board_size);
void actions_free(action_t *actions);
action_t *actions_generate(tak_state_p state, uint32_t *num_actions);
char action_in_list(action_t action, action_t *actions,
const uint32_t num_actions);
void action_move_to_front(action_t action, action_t *actions,
const uint32_t num_actions);
void action_take(tak_state_p state, const action_t action);
void action_undo(tak_state_p state, const action_t action);
void action_to_ptn(const action_t action, char *out_ptn);
#endif
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