int main(void) {
char buffer[20];
/* Initialize system */
SystemInit();
/* Initialize delay */
TM_DELAY_Init();
/* Initialize USART1, TX: PB6 */
TM_USART_Init(USART1, TM_USART_PinsPack_2, 115200);
/* Initialize random number generator */
TM_RNG_Init();
while (1) {
/* Get number */
sprintf(buffer, "Number: %u\n", TM_RNG_Get());
/* Put to USART */
TM_USART_Puts(USART1, buffer);
Delayms(1000);
}
}
void TM_SNAKE_Start(void) {
/* Initialize delay */
TM_DELAY_Init();
/* Initialize leds on board */
TM_DISCO_LedInit();
/* Turn off all leds */
TM_DISCO_LedOff(LED_ALL);
/* Initialize True random number generator */
TM_RNG_Init();
/* Initialize ILI9341 LCD */
TM_ILI9341_Init();
TM_ILI9341_Rotate(TM_ILI9341_Orientation_Portrait_2);
/* Initialize USB HID Host for keyboard */
TM_USB_HIDHOST_Init();
/* Set default options */
TM_SNAKE_SetFirstOptions();
/* Set default values */
TM_SNAKE_SetDefaultSnake();
/* Prepare display */
TM_SNAKE_PrepareDisplay();
/* Generate random target */
TM_SNAKE_GenerateTarget();
/* Set time to 0 */
TM_DELAY_SetTime(0);
while (1) {
/* Process USB HID host */
TM_USB_HIDHOST_Process();
/* Check for timeout, move snake here */
if (TM_DELAY_Time() >= Settings.Millis && !Settings.Pause && !GameOver) {
/* Reset time */
TM_DELAY_SetTime(0);
/* Get new direction value */
Snake.Direction = Snake1.Direction;
/* Get last x/y value from snake array = snake head */
Snake_Head[0] = Snake.Snake[Snake.LastIndex][0];
Snake_Head[1] = Snake.Snake[Snake.LastIndex][1];
/* Store last value before update */
Snake_Head_Last[0] = Snake_Head[0];
Snake_Head_Last[1] = Snake_Head[1];
if (!Snake_FirstTime) {
/* Move snake */
switch (Snake.Direction) {
case SNAKE_DIRECTION_LEFT:
Snake_Head[0] -= 1;
break;
case SNAKE_DIRECTION_RIGHT:
Snake_Head[0] += 1;
break;
case SNAKE_DIRECTION_UP:
Snake_Head[1] -= 1;
break;
case SNAKE_DIRECTION_DOWN:
Snake_Head[1] += 1;
break;
default:
break;
}
}
/* Overflow is activated */
if (Settings.Overflow) {
/* Check X */
if (Snake_Head[0] == -1) {
Snake_Head[0] = SNAKE_PIXELS - 1;
} else if (Snake_Head[0] == SNAKE_PIXELS) {
Snake_Head[0] = 0;
}
/* Check Y */
if (Snake_Head[1] == -1) {
Snake_Head[1] = SNAKE_PIXELS - 1;
} else if (Snake_Head[1] == SNAKE_PIXELS) {
Snake_Head[1] = 0;
}
} else {
/* Check walls */
if (
Snake_Head[0] == -1 ||
Snake_Head[0] == SNAKE_PIXELS ||
Snake_Head[1] == -1 ||
Snake_Head[1] == SNAKE_PIXELS
) {
/* We hit the wall somewhere */
GameOver = 1;
}
}
if (!Snake_FirstTime) {
/* Clear first value from array = snake foot */
TM_SNAKE_DeleteFromArray(0, Snake_Foot);
/* Check if snake hit itself */
if (TM_SNAKE_MatchesSnakeLocations(Snake_Head)) {
/* Set gameover flag */
GameOver = 1;
}
}
/* Check if target is reached */
if (
!GameOver &&
Snake_Head[0] == Snake_Food[0] &&
Snake_Head[1] == Snake_Food[1]
) {
/* Add new value to the array, increase snake */
TM_SNAKE_AddToArray(Snake_Head);
/* Increase counter for snake hits */
Snake.Hits++;
/* Generate new target */
TM_SNAKE_GenerateTarget();
}
if (!GameOver) {
if (!Snake_FirstTime) {
/* Add new value to the array = new snake head */
TM_SNAKE_AddToArray(Snake_Head);
}
/* Clear pixel on LCD for foot */
/* First clear foot, maybe is new head on the same position */
TM_SNAKE_DrawPixel(Snake_Foot[0], Snake_Foot[1], 0);
/* Draw pixel on LCD for new head position with head color */
TM_SNAKE_DrawPixel(Snake_Head[0], Snake_Head[1], 3);
/* Draw new pixel for the second pixel after head with new color to delete head color */
TM_SNAKE_DrawPixel(Snake_Head_Last[0], Snake_Head_Last[1], 1);
}
/* Clear flag if needed */
if (Snake_FirstTime) {
Snake_FirstTime = 0;
}
}
if (GameOver) {
/* Check flag */
if (!GameOverDisplay) {
/* Set flag */
GameOverDisplay = 1;
/* Show content to user */
TM_ILI9341_Puts(88, 120, "Game\nOVER", &TM_Font_16x26, ILI9341_COLOR_WHITE, ILI9341_COLOR_BLACK);
TM_ILI9341_Puts(28, 180, "Press 'r' to start again!!", &TM_Font_7x10, ILI9341_COLOR_WHITE, ILI9341_COLOR_BLACK);
}
} else {
/* Clear flag */
GameOverDisplay = 0;
}
/* Check if connected device is keyboard */
if (TM_USB_HIDHOST_Device() == TM_USB_HIDHOST_Result_KeyboardConnected) {
/* Green LED ON */
TM_DISCO_LedOn(LED_GREEN);
/* Read keyboard data */
TM_USB_HIDHOST_ReadKeyboard(&Keyboard);
/* If any buttons active */
if (Keyboard.ButtonStatus == TM_USB_HIDHOST_Button_Pressed) {
/* Check pressed button and do actions */
switch ((uint8_t)Keyboard.Button) {
case SNAKE_KEY_LEFT:
/* Change direction if possible */
if (
Snake.Direction == SNAKE_DIRECTION_UP ||
Snake.Direction == SNAKE_DIRECTION_DOWN ||
Snake.Direction == SNAKE_DIRECTION_LEFT
) {
/* Disable pause mode */
Settings.Pause = 0;
/* Set direction */
Snake1.Direction = SNAKE_DIRECTION_LEFT;
}
break;
case SNAKE_KEY_RIGHT:
/* Change direction if possible */
if (
Snake.Direction == SNAKE_DIRECTION_UP ||
Snake.Direction == SNAKE_DIRECTION_DOWN ||
Snake.Direction == SNAKE_DIRECTION_RIGHT
) {
/* Disable pause mode */
Settings.Pause = 0;
/* Set direction */
Snake1.Direction = SNAKE_DIRECTION_RIGHT;
}
break;
case SNAKE_KEY_UP:
/* Change direction if possible */
if (
Snake.Direction == SNAKE_DIRECTION_LEFT ||
Snake.Direction == SNAKE_DIRECTION_RIGHT ||
Snake.Direction == SNAKE_DIRECTION_UP
) {
/* Disable pause mode */
Settings.Pause = 0;
/* Set direction */
Snake1.Direction = SNAKE_DIRECTION_UP;
}
break;
case SNAKE_KEY_DOWN:
/* Change direction if possible */
if (
Snake.Direction == SNAKE_DIRECTION_LEFT ||
Snake.Direction == SNAKE_DIRECTION_RIGHT ||
Snake.Direction == SNAKE_DIRECTION_DOWN
) {
/* Disable pause mode */
Settings.Pause = 0;
/* Set direction */
Snake1.Direction = SNAKE_DIRECTION_DOWN;
}
break;
case SNAKE_KEY_SPEED_UP:
/* Increase speed if possible */
TM_SNAKE_SpeedUp();
break;
case SNAKE_KEY_SPEED_DOWN:
/* Decrease speed if possible */
TM_SNAKE_SpeedDown();
break;
case SNAKE_KEY_PAUSE:
/* Toggle pause */
if (Settings.Pause) {
Settings.Pause = 0;
} else {
Settings.Pause = 1;
}
break;
case SNAKE_KEY_RESET:
/* Draw snake area */
TM_SNAKE_DrawArea();
/* Set default snake, leave as it was before */
TM_SNAKE_SetDefaultSnake();
/* Generate random target */
TM_SNAKE_GenerateTarget();
/* Disable gameover */
GameOver = 0;
/* Reset first time flag */
Snake_FirstTime = 1;
break;
case SNAKE_KEY_OVERFLOW:
/* Toggle overflow mode */
if (Settings.Overflow) {
Settings.Overflow = 0;
} else {
Settings.Overflow = 1;
}
break;
default:
break;
}
}
} else {
/* Green LED OFF */
TM_DISCO_LedOff(LED_GREEN);
}
/* Update LCD with changed settings */
/* Check overflow */
if (Settings1.Overflow != Settings.Overflow || Settings1.Speed != Settings.Speed) {
/* Save new */
Settings1.Overflow = Settings.Overflow;
/* Save new */
Settings1.Speed = Settings.Speed;
/* Display game mode and speed */
sprintf(Buffer, "Mode:%4d; Speed: %2d/%2d", Settings.Overflow, Settings.Speed, SNAKE_SPEED_MAX);
TM_ILI9341_Puts(10, SNAKE_TEXT_LINE1, Buffer, &TM_Font_7x10, 0x0000, SNAKE_COLOR_MAIN_BCK);
}
/* Check snake hits */
if (Snake1.Hits != Snake.Hits) {
/* Save new */
Snake1.Hits = Snake.Hits;
/* Display Speed */
sprintf(Buffer, "Hits:%4d; Score: %5d", Snake.Hits, (2 - Settings.Overflow) * Snake.Hits * Settings.Speed);
TM_ILI9341_Puts(10, SNAKE_TEXT_LINE2, Buffer, &TM_Font_7x10, 0x0000, SNAKE_COLOR_MAIN_BCK);
}
}
}
