Snake game in C/raylib in only 47 lines of code

snake.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <raylib.h>
#define TILE_SIZE 64
#define ROWS 15
#define COLS 10
static short foodPos[2], snakePos[2], snakeDirection = 0, lost = 0, gameRunCooldown = 0, snakePartTime[ROWS][COLS], creationPower = 2;
void main() {
	srand(time(0));
	InitWindow(ROWS * TILE_SIZE, COLS * TILE_SIZE, "Snake");
	SetTargetFPS(10);
	foodPos[0] = rand() % ROWS;
	foodPos[1] = rand() % COLS;
	snakePos[0] = (int)ROWS / 2;
	snakePos[1] = (int)COLS / 2;
	memset(snakePartTime, 0, sizeof(snakePartTime));
	while (!WindowShouldClose()) {
		if (gameRunCooldown == 2) {
			snakePos[0] += snakeDirection == 0 ? 1 : (snakeDirection == 1 ? - 1 : 0);
			snakePos[1] += snakeDirection == 2 ? 1 : (snakeDirection == 3 ? -1 : 0);
			if (snakePartTime[snakePos[0]][snakePos[1]] > 0) lost = 1;
			snakePartTime[snakePos[0]][snakePos[1]] = creationPower;
			for (short i = 0; i < ROWS; i++) for (int j = 0; j < COLS; j++) snakePartTime[i][j] -= snakePartTime[i][j] > 0 ? 1 : 0;
			gameRunCooldown = 0;
		} gameRunCooldown++;
		snakeDirection = IsKeyDown(KEY_LEFT) ? 1 : (IsKeyDown(KEY_RIGHT) ? 0 : (IsKeyDown(KEY_UP) ? 3 : (IsKeyDown(KEY_DOWN) ? 2 : snakeDirection)));
		if (snakePos[0] < 0 || snakePos[1] < 0 || snakePos[0] >= ROWS || snakePos[1] >= COLS) lost = 1;
		if (snakePos[0] == foodPos[0] && snakePos[1] == foodPos[1]) {
			while (snakePartTime[foodPos[0]][foodPos[1]] > 0) {
				foodPos[0] = rand() % ROWS;
				foodPos[1] = rand() % COLS;
			} creationPower++;
		}
		BeginDrawing();
			ClearBackground(BLACK);
			if (lost == 0) {
				DrawRectangle(foodPos[0] * TILE_SIZE, foodPos[1] * TILE_SIZE, TILE_SIZE, TILE_SIZE, RED);
				for (short i = 0; i < ROWS; i++) for (int j = 0; j < COLS; j++) if (snakePartTime[i][j] > 0)
					DrawRectangle(i * TILE_SIZE, j * TILE_SIZE, TILE_SIZE, TILE_SIZE, GREEN);
			} else
				DrawText("You lost", GetScreenWidth() / 2 - (MeasureText("You lost", 50) / 2), GetScreenHeight() / 2  - (MeasureText("You lost", 50) / 2), 50, RED);
		EndDrawing();
	}
	CloseWindow();
}