apps/display-demo/app_memgame.c File Reference

Display demo memory game implementation. More...

#include <gfx/gfx.h>
#include <gfx/win.h>
#include <gfx/wtk.h>
#include <gfx/sysfont.h>
#include <stream.h>
#include <string.h>
#include <timer.h>
#include "app_desktop.h"
#include "app_memgame.h"
#include <workqueue.h>
#include "file_loader.h"

Go to the source code of this file.

Data Structures
struct	memgame_piece
	Game piece data. More...
struct	memgame_context
	Context for the memory game application. More...
Defines
#define	memgame_print_helper(str, x, y, color)   gfx_draw_string(str, x, y, &sysfont, color, GFX_COLOR_TRANSPARENT)
	Convenience macro for drawing text.
General game board configuration
#define	NR_OF_PIECE_PAIRS   6
	Number of piece pairs in the game.
#define	NR_OF_PIECES   (2 * NR_OF_PIECE_PAIRS)
	Number of pieces in the game.
#define	NR_OF_BOARD_COLUMNS   4
	Number of pieces per row on the board.
#define	BOARD_POS_X   30
	X-coordinate to start drawing first piece at.
#define	BOARD_POS_Y   5
	Y-coordinate to start drawing first piece at.
#define	BACKGROUND_COLOR   GFX_COLOR(0, 0, 0)
	Background color for the game.
#define	WIDGET_FONT_SCALE   2
	Font scaling for button widgets.
Game piece configuration
#define	PIECE_PAIR_FILE_0   "i_fonts"
	Image file to load when showing piece pair 0.
#define	PIECE_PAIR_FILE_1   "i_pics"
	Image file to load when showing piece pair 1.
#define	PIECE_PAIR_FILE_2   "i_avr"
	Image file to load when showing piece pair 2.
#define	PIECE_PAIR_FILE_3   "i_clock"
	Image file to load when showing piece pair 3.
#define	PIECE_PAIR_FILE_4   "i_files"
	Image file to load when showing piece pair 4.
#define	PIECE_PAIR_FILE_5   "i_games"
	Image file to load when showing piece pair 5.
#define	PIECE_BACK_FILE   "cardback"
	Image file to load when showing the back of game pieces.
#define	PIECE_SIZE_X   57
	Width of piece images.
#define	PIECE_SIZE_Y   PIECE_SIZE_X
	Height of piece images.
#define	PIECE_SPACING_X   10
	Spacing between pieces in X-dimension.
#define	PIECE_SPACING_Y   PIECE_SPACING_X
	Spacing between pieces in Y-dimension.
#define	PIECE_INVALID_INDEX   0xFF
	Index to use to indicate no piece is selected.
New game-button configuration
#define	BTN_NEW_GAME_TEXT   "New"
	Text to draw on button.
#define	BTN_NEW_GAME_POS_X
	X-coordinate of button.
#define	BTN_NEW_GAME_POS_Y   APP_EXIT_BUTTON_POS_Y
	Y-coordinate of button.
#define	BTN_NEW_GAME_SIZE_X   (2 * APP_EXIT_BUTTON_SIZE_X)
	Width of button.
#define	BTN_NEW_GAME_SIZE_Y   APP_EXIT_BUTTON_SIZE_Y
	Height of button.
Number of tries-counter configuration
#define	MSG_TRIES_TEXT   "Tries: %i"
	Text to print, for use with snprintf().
#define	MSG_TRIES_LENGTH   10
	Maximum number of characters in text string.
#define	MSG_TRIES_POS_X   0
	X-coordinate of label.
#define	MSG_TRIES_POS_Y
	Y-coordinate of label, vertically centered on buttons.
#define	MSG_TRIES_SIZE_X
	Width of label widget.
#define	MSG_TRIES_SIZE_Y   gfx_font_get_height(&sysfont)
	Height of label widget.
Game over-message configuration
#define	MSG_GAME_OVER_TEXT   "Well done!"
	Text to print when game is completed.
#define	MSG_GAME_OVER_SCALE   4
	Font scaling for text string.
#define	MSG_GAME_OVER_POS_X   45
	X-coordinate of game-over text.
#define	MSG_GAME_OVER_POS_Y   105
	Y-coordinate of game-over text.
#define	MSG_GAME_OVER_GLOW_OFFSET   1
	Offset in position to use for getting a glow-effect.
#define	MSG_GAME_OVER_COLOR   GFX_COLOR(255, 160, 0)
	Color to print foreground text with.
#define	MSG_GAME_OVER_GLOW_COLOR   GFX_COLOR(250, 250, 250)
	Color to print background "glow" text with.
Application timing configuration
#define	TIMER_PAUSE_HALF_SECONDS   3
	Number of half seconds before hiding mismatched game pieces.
#define	TIMER_CLOCK_RATE   (0x1ffffUL / 8)
	Minimum timer clock rate to use.
Enumerations
enum	memgame_command_id { CMD_NONE, CMD_NEW_GAME, CMD_EXIT }
	Event command IDs for application widgets. More...
enum	memgame_state {   DRAW_ALL_PIECES, SELECT_FIRST_PIECE, SHOWN_FIRST_PIECE, SELECT_SECOND_PIECE,   SHOWN_SECOND_PIECE, HIDE_FIRST_PIECE, HIDE_SECOND_PIECE, HIDDEN_BOTH_PIECES,   GAME_OVER }
	States of the memory game. More...
Functions
static uint16_t	memgame_rand (void)
	Simple pseudo-random number generator.
static void	memgame_print_game_over (void)
	Print game over-message.
static void	memgame_print_tries (void)
	Print user's number of tries.
static void	memgame_get_piece_coordinates (uint8_t position, gfx_coord_t *pos_x, gfx_coord_t *pos_y)
	Get the coordinates for specified piece.
static void	memgame_draw_piece (uint8_t index, bool show)
	Enqueue drawing of specified piece.
static uint8_t	memgame_get_random_index (uint8_t indexes[])
	Pick a random piece index from array.
static void	memgame_start_new_game (void)
	Start new game.
static void	memgame_update (uint8_t new_piece)
	Update the game.
static void	memgame_handle_command_event (win_command_t data)
	Command event handler for application.
static void	memgame_handle_pointer_event (struct win_pointer_event const *data)
	Pointer event handler for application.
static bool	memgame_window_handler (struct win_window *win, enum win_event_type type, void const *data)
	Window event handler for application.
static void	memgame_worker (struct workqueue_task *task)
	Application task worker.
static void	memgame_timer_callback (struct timer *timer)
	Timer callback function.
void	app_memgame_launch (struct workqueue_task *task)
	Memory game application launcher.
Variables
static struct memgame_context *	game_ctx
	Pointer to memory game application context.

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Detailed Description

Display demo memory game implementation.

Copyright (C) 2010 Atmel Corporation. All rights reserved.

Definition in file app_memgame.c.