unleashed-firmware/applications/tictactoe_game/tictactoe_game.c

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C
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#include <furi.h>
#include <gui/gui.h>
#include <input/input.h>
#include <stdlib.h>
#include <gui/view.h>
#define TAG "TicTacToe"
uint8_t selBoxX;
uint8_t selBoxY;
uint8_t selX = 2;
uint8_t selY = 2;
uint16_t scoreX;
uint16_t scoreO;
char player = 'X';
char field[3][3];
bool fieldx[3][3];
const uint8_t coords[3] = {6, 27, 48};
bool button_state = false;
typedef enum { EventTypeTick, EventTypeKey } EventType;
typedef enum { DirectionUp, DirectionRight, DirectionDown, DirectionLeft } Direction;
typedef enum { GameStatePlaying, GameStateGameOver } GameState;
typedef struct {
GameState game_state;
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FuriTimer* timer;
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} TicTacToeState;
typedef struct {
EventType type;
InputEvent input;
} GameEvent;
void drawCross(Canvas* const canvas, uint8_t x, uint8_t y) {
canvas_draw_line(canvas, x, y, x + 9, y + 9); // top left - bottom right slash
canvas_draw_line(canvas, x + 9, y, x, y + 9); // down left - top right slash
}
void drawCircle(Canvas* const canvas, uint8_t x, uint8_t y) {
canvas_draw_circle(canvas, x + 4, y + 5, 5);
}
void player_switch() {
if(player == 'O') {
player = 'X';
} else if(player == 'X') {
player = 'O';
}
}
void tictactoe_draw(Canvas* canvas) {
// Draws the game field
canvas_draw_frame(canvas, 0, 0, 64, 64); // frame
canvas_draw_line(canvas, 0, 21, 63, 21); // horizontal line
canvas_draw_line(canvas, 0, 42, 63, 42); // horizontal line
canvas_draw_line(canvas, 21, 0, 21, 63); // vertical line
canvas_draw_line(canvas, 42, 0, 42, 63); // vertical line
// Draws the game field elements (X or O)
for(uint8_t i = 0; i <= 2; i++) {
for(uint8_t j = 0; j <= 2; j++) {
if(field[i][j] == 'O') {
drawCircle(canvas, coords[i], coords[j]);
} else if(field[i][j] == 'X') {
drawCross(canvas, coords[i], coords[j]);
}
}
}
// Draws the selection box
if(selX == 1) {
selBoxX = 1;
} else if(selX == 2) {
selBoxX = 22;
} else if(selX == 3) {
selBoxX = 43;
}
if(selY == 1) {
selBoxY = 1;
} else if(selY == 2) {
selBoxY = 22;
} else if(selY == 3) {
selBoxY = 43;
}
canvas_set_color(canvas, ColorBlack);
canvas_draw_frame(canvas, selBoxX, selBoxY, 20, 20);
canvas_draw_frame(canvas, selBoxX + 1, selBoxY + 1, 18, 18);
// Draws the sidebar
canvas_set_font(canvas, FontPrimary);
canvas_draw_str(canvas, 81, 10, "SCORE");
canvas_draw_str(canvas, 75, 24, "X:");
char scoreXBuffer[10];
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snprintf(scoreXBuffer, sizeof(scoreXBuffer), "%d", scoreX);
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canvas_draw_str(canvas, 88, 24, scoreXBuffer);
canvas_draw_str(canvas, 75, 35, "O:");
char scoreOBuffer[10];
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snprintf(scoreOBuffer, sizeof(scoreOBuffer), "%d", scoreO);
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canvas_draw_str(canvas, 88, 35, scoreOBuffer);
canvas_set_font(canvas, FontSecondary);
canvas_draw_str(canvas, 75, 46, "Player:");
if(player == 'X') {
drawCross(canvas, 93, 50);
} else if(player == 'O') {
drawCircle(canvas, 93, 50);
}
}
void clear_game_field() {
// Clears the game field arrays
for(uint8_t i = 0; i <= 2; i++) {
for(uint8_t j = 0; j <= 2; j++) {
field[i][j] = ' ';
fieldx[i][j] = false;
}
}
selX = 2; // Centers the selection box on X axis
selY = 2; // Centers the selection box on Y axis
}
void reset_game_data() {
scoreO = 0;
scoreX = 0;
player = 'X';
}
void draw_win(Canvas* canvas, char player) {
// Handles the score table
if(player == 'X') {
scoreX++;
} else if(player == 'O') {
scoreO++;
}
// Switches the players
player_switch();
// Draws the board with players switched
tictactoe_draw(canvas);
// Clear the game field
clear_game_field();
// Draw the new board
tictactoe_draw(canvas);
}
static void tictactoe_state_init(TicTacToeState* const tictactoe_state) {
// Set the initial game state
tictactoe_state->game_state = GameStatePlaying;
clear_game_field();
reset_game_data();
}
static void tictactoe_draw_callback(Canvas* const canvas, void* ctx) {
const TicTacToeState* tictactoe_state = acquire_mutex((ValueMutex*)ctx, 25);
if(tictactoe_state == NULL) {
return;
}
if(selX > 3) {
selX = 3;
} else if(selX < 1) {
selX = 1;
}
if(selY > 3) {
selY = 3;
} else if(selY < 1) {
selY = 1;
}
// Assigns the game field elements their value (X or O) when the OK button is pressed
if(button_state) {
button_state = false;
for(uint8_t i = 0; i <= 2; i++) {
for(uint8_t j = 0; j <= 2; j++) {
if((selX == i + 1) && (selY == j + 1) && (fieldx[i][j] == false)) {
if(player == 'X') {
field[i][j] = 'X';
fieldx[i][j] = true;
player_switch();
} else if(player == 'O') {
field[i][j] = 'O';
fieldx[i][j] = true;
player_switch();
}
}
}
}
}
// Checks the game field for winning combinations
if((field[0][0] == 'X') && (field[1][0] == 'X') && (field[2][0] == 'X')) {
draw_win(canvas, 'X');
} else if((field[0][1] == 'X') && (field[1][1] == 'X') && (field[2][1] == 'X')) {
draw_win(canvas, 'X');
} else if((field[0][2] == 'X') && (field[1][2] == 'X') && (field[2][2] == 'X')) {
draw_win(canvas, 'X');
} else if((field[0][0] == 'X') && (field[0][1] == 'X') && (field[0][2] == 'X')) {
draw_win(canvas, 'X');
} else if((field[1][0] == 'X') && (field[1][1] == 'X') && (field[1][2] == 'X')) {
draw_win(canvas, 'X');
} else if((field[2][0] == 'X') && (field[2][1] == 'X') && (field[2][2] == 'X')) {
draw_win(canvas, 'X');
} else if((field[0][0] == 'X') && (field[1][1] == 'X') && (field[2][2] == 'X')) {
draw_win(canvas, 'X');
} else if((field[2][0] == 'X') && (field[1][1] == 'X') && (field[0][2] == 'X')) {
draw_win(canvas, 'X');
} else if((field[0][0] == 'O') && (field[1][0] == 'O') && (field[2][0] == 'O')) {
draw_win(canvas, 'O');
} else if((field[0][1] == 'O') && (field[1][1] == 'O') && (field[2][1] == 'O')) {
draw_win(canvas, 'O');
} else if((field[0][2] == 'O') && (field[1][2] == 'O') && (field[2][2] == 'O')) {
draw_win(canvas, 'O');
} else if((field[0][0] == 'O') && (field[0][1] == 'O') && (field[0][2] == 'O')) {
draw_win(canvas, 'O');
} else if((field[1][0] == 'O') && (field[1][1] == 'O') && (field[1][2] == 'O')) {
draw_win(canvas, 'O');
} else if((field[2][0] == 'O') && (field[2][1] == 'O') && (field[2][2] == 'O')) {
draw_win(canvas, 'O');
} else if((field[0][0] == 'O') && (field[1][1] == 'O') && (field[2][2] == 'O')) {
draw_win(canvas, 'O');
} else if((field[2][0] == 'O') && (field[1][1] == 'O') && (field[0][2] == 'O')) {
draw_win(canvas, 'O');
} else if(
(fieldx[0][0] == true) && (fieldx[0][1] == true) && (fieldx[0][2] == true) &&
(fieldx[1][0] == true) && (fieldx[1][1] == true) && (fieldx[1][2] == true) &&
(fieldx[2][0] == true) && (fieldx[2][1] == true) && (fieldx[2][2] == true)) {
draw_win(canvas, 'T');
}
tictactoe_draw(canvas);
release_mutex((ValueMutex*)ctx, tictactoe_state);
}
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static void tictactoe_input_callback(InputEvent* input_event, FuriMessageQueue* event_queue) {
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furi_assert(event_queue);
GameEvent event = {.type = EventTypeKey, .input = *input_event};
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furi_message_queue_put(event_queue, &event, FuriWaitForever);
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}
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static void tictactoe_update_timer_callback(FuriMessageQueue* event_queue) {
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furi_assert(event_queue);
GameEvent event = {.type = EventTypeTick};
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furi_message_queue_put(event_queue, &event, 0);
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}
int32_t tictactoe_game_app(void* p) {
UNUSED(p);
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FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(GameEvent));
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TicTacToeState* tictactoe_state = malloc(sizeof(TicTacToeState));
ValueMutex state_mutex;
if(!init_mutex(&state_mutex, tictactoe_state, sizeof(TicTacToeState))) {
FURI_LOG_E(TAG, "Cannot create mutex\r\n");
free(tictactoe_state);
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furi_message_queue_free(event_queue);
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return 255;
}
// Set system callbacks
ViewPort* view_port = view_port_alloc();
view_port_draw_callback_set(view_port, tictactoe_draw_callback, &state_mutex);
view_port_input_callback_set(view_port, tictactoe_input_callback, event_queue);
tictactoe_state->timer =
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furi_timer_alloc(tictactoe_update_timer_callback, FuriTimerTypePeriodic, event_queue);
furi_timer_start(tictactoe_state->timer, furi_kernel_get_tick_frequency() / 22);
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tictactoe_state_init(tictactoe_state);
// Open GUI and register view_port
Gui* gui = furi_record_open("gui");
gui_add_view_port(gui, view_port, GuiLayerFullscreen);
GameEvent event;
for(bool processing = true; processing;) {
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FuriStatus event_status = furi_message_queue_get(event_queue, &event, 100);
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TicTacToeState* tictactoe_state = (TicTacToeState*)acquire_mutex_block(&state_mutex);
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if(event_status == FuriStatusOk) {
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// Key events
if(event.type == EventTypeKey) {
if(event.input.type == InputTypePress) {
switch(event.input.key) {
case InputKeyBack:
processing = false;
break;
case InputKeyRight:
selX++;
break;
case InputKeyLeft:
selX--;
break;
case InputKeyUp:
selY--;
break;
case InputKeyDown:
selY++;
break;
case InputKeyOk:
button_state = true;
break;
}
}
}
} else {
// Event timeout
FURI_LOG_D(TAG, "osMessageQueue: Event timeout");
}
view_port_update(view_port);
release_mutex(&state_mutex, tictactoe_state);
}
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furi_timer_free(tictactoe_state->timer);
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view_port_enabled_set(view_port, false);
gui_remove_view_port(gui, view_port);
furi_record_close("gui");
view_port_free(view_port);
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furi_message_queue_free(event_queue);
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delete_mutex(&state_mutex);
free(tictactoe_state);
return 0;
}