1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
/*
* Copyright (c) 2019-2021, yzrh <yzrh@noema.org>
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <SDL2/SDL.h>
#include <SDL2/SDL_ttf.h>
#include "renderer.h"
#include "game.h"
#include "input.h"
bool collision(int *a, int *b);
bool collision_block(int *a, int *b);
bool collision_bound(float x, float y, Snake_Text *message);
void draw_clear(SDL_Renderer *renderer);
void draw_colour(SDL_Renderer *renderer, Snake_Colour colour);
void draw_text(SDL_Renderer *renderer, TTF_Font *font,
int text_x, int text_y, char *text,
bool centre, bool select, SDL_Color fg, SDL_Color bg,
Snake_Text *message);
void draw_wall(SDL_Renderer *renderer);
void draw_snake(SDL_Renderer *renderer, Snake_Pos **snake);
void draw_fruit(SDL_Renderer *renderer, int *fruit);
void draw_pipe(SDL_Renderer *renderer, Snake_Pos **pipe);
void game_snake_init(Snake_Pos **snake, int dx);
void game_snake_move(Snake_Pos **snake0, Snake_Pos **snake1,
Snake_Input *head, bool lawi, int *legal);
void game_snake_grow(Snake_Pos **snake);
void game_fruit(int *fruit, Snake_Pos **snake);
void game_snake_fall(Snake_Pos **snake, bool norm, int speed);
void game_pipe_init(Snake_Pos **pipe);
void game_pipe_move(Snake_Pos **pipe);
void game_pipe_add(Snake_Pos **pipe);
void game_pipe_del(Snake_Pos **pipe);
void game_pipe_pos(Snake_Pos **pipe, int *state);
void game_pipe_bound(Snake_Pos **pipe, int *pos);
void input_keyboard(SDL_Keycode sym, Snake_Input *code);
void input_controller(uint8_t button, Snake_Input *code);
void input_gpio(int gpio, uint8_t *button);
#ifdef GPIO
int gpio_export(int pin);
int gpio_unexport(int pin);
int gpio_config(int pin, int direction, int interrupt);
int gpio_write(int pin, int value);
int gpio_read(int pin);
#endif /* GPIO */
|
