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/*
Kitsune's Curse
Copyright (C) 2020-2023 Juan J. Martinez <jjm@usebox.net>
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 this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef _SPLIB_H
#define _SPLIB_H
#include <stdint.h>
// this is 160x160; 8x8 pixels tiles
#define TMW 20
#define TMH 20
#define TW 8
#define TH 8
// All the buffer must be under 0x8000
#define BUFF_ADDR 0x0100
// CONFIGURE **
#define SCREEN_ADDR(x, y) ((int)(0xc000 + x + ((y / 8) * 80) + ((y % 8) * 2048)))
#define DIRTY_BIT 0x8000
#define ADDR_BITS 0x7fff
struct st_tile
{
uint16_t baddr;
const uint8_t *t;
uint16_t saddr;
struct st_tile *n;
};
void init_tiles();
void update_screen();
void validate_screen();
void invalidate_screen();
struct st_tile *get_tile_xy(uint8_t x, uint8_t y);
void invalidate_tile(struct st_tile *st) __z88dk_fastcall;
uint8_t is_invalid_tile(struct st_tile *st) __z88dk_fastcall;
uint8_t is_invalid_tile2(struct st_tile *st) __z88dk_fastcall;
void erase_tile(struct st_tile *st) __z88dk_fastcall;
void link_buffer(struct st_tile *st) __z88dk_fastcall;
void link_buffer_xy(uint8_t x, uint8_t y);
void put_tile(const uint8_t *t, struct st_tile *st);
void put_sprite4(const uint8_t *s, uint8_t x, uint8_t y, uint8_t th, uint8_t inv);
void erase_sprite(uint8_t x, uint8_t y, uint8_t th);
void fill_screen(const uint8_t *t) __z88dk_fastcall;
// misc
void clear_screen();
void wait_vsync();
void set_hw_border(uint8_t c) __z88dk_fastcall;
void set_hw_ink(uint8_t ink, uint8_t c);
void pad_numbers(uint8_t *s, uint8_t limit, uint16_t number);
uint16_t screen_addr(uint16_t x, uint16_t y);
uint8_t abs_sub(uint8_t a, uint8_t b);
// require spfont, 63 chars (starting on 31)
void set_text_ink(uint8_t c, uint8_t c2, uint8_t c3);
void put_text(const char *s, uint8_t x, uint8_t y);
#endif // _SPLIB_H
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