Files
minigame-menu/engine/grid_game_engine.h

158 lines
3.5 KiB
C

/*
* Created by snapshot112 on 15/10/2025.
*
* A game engine build on top of a grid api to run and display games using ncurses.
*
* Please make sure to initialize the game engine before running any games.
*/
#ifndef MINIGAME_MENU_GRID_GAME_ENGINE_H
#define MINIGAME_MENU_GRID_GAME_ENGINE_H
#include "grid/grid.h"
#define KEY_ESCAPE 27
typedef struct {
int x;
int y;
} coordinate;
// Start at 1 since the color 0 is reserved for no_color.
typedef enum {
BLACK = 1,
WHITE = 2,
BLUE = 3,
GREEN = 4,
CYAN = 5,
MAGENTA = 6,
YELLOW = 7,
RED = 8
} game_colors;
typedef struct {
char name[100];
grid *game_map;
} game_maps;
/*
* Checks if 2 coordinates are the same.
*
* Input:
* a: coordinate 1
* b: coordinate 2
*
* Returns:
* If they point to the same location: 1
* Otherwise: 0
*/
int same_coordinate(coordinate a, coordinate b);
/*
* A proper modulo function.
* The one provided by c: '%' doesn't work according to the mathematical definition.
*/
int modulo(int number, int mod);
/*
* Displays the given grid with the given offset using ncurses.
*
* Input:
* gp: A pointer to the grid.
*
* Side effect:
* The console is cleared and the grid is printed.
*/
void show_grid_on_offset(const grid *gp, int starting_x, int starting_y);
/*
* Displays the given grid with ncurses.
*
* Input:
* gp: A pointer to the grid.
*
* Side effect:
* The console is cleared and the grid is printed.
*/
void show_grid(const grid *gp);
/*
* Turn on color highlighting for ncurses
*
* Input:
* color: The color you want the highlight to be.
*
* Side Effects:
* Enables color highlighting in ncurses.
*
* Note:
* This should always be disabled with disable_highlights before being called again.
* Not disabling the current highlight before enabling another one is undefined behaviour.
*/
void enable_highlight(game_colors color);
/*
* Turn off color highlighting for ncurses
*
* Input:
* color: The color highlighting you want to turn off.
*
* Side Effects:
* Enables color highlighting in ncurses.
*
* Note:
* This should always be enabled with enable_highlights before being called.
* Disabling the highlight before enabling it is undefined behaviour.
*/
void disable_highlight(game_colors color);
/*
* Updates a single location in the grid.
*
* Input:
* gp: A pointer to the grid.
* c: The character to update the location with.
* x: The x-coordinate of the spot you want to update.
* y: The y-coordinate of the spot you want to update.
*
* Side effect:
* The update gets applied both on the grid and on the screen.
*/
void update_grid(grid *gp, char c, int x, int y);
/*
* Display the ending screen that matches the end state of the grid.
*
* Input:
* gp: A pointer to the grid.
* coordinate: The location to show the ending screen.
*
* Side Effects:
* The end of game screen gets displayed with a graceful exit.
*/
void game_exit_message(const grid *gp, coordinate location);
/*
* Waits for you to press ENTER before exiting the game.
*
* Input:
* coordinate: The location to show the message.
*
* Side effect: Prints "Press ENTER to exit." game to the console.
*/
void graceful_exit(coordinate message_location);
/*
* Initialize ncurses.
*
* This enables cbreak, noecho, hides the cursor and enables the extra keys.
* This also creates the color pairs needed for game_colors and sets ESCDELAY to 0.
*/
void init_engine(void);
/*
* Cleanup ncurses.
*/
void cleanup_engine(void);
#endif //MINIGAME_MENU_GRID_GAME_ENGINE_H