C 게임프로그래밍 7

#include 
#include 
#include 

char bg[25][80];
int playerX;
int playerY;

bool fire;
int bulletX;
int bulletY;

void PrintfScreen(void);
void ClearScreen(void);
void GameMain(void);

void KeyControl(void);
void BulletDraw(void);
void PlayerDraw(void);

void main(void)
{
	playerX = 0;
	playerY = 12;

	fire = false;

	for(;;)
	{
		ClearScreen();
		GameMain();
		PrintfScreen();
	}
}

void PrintfScreen(void)
{
	bg[24][79] = 0;
	printf("%s",bg);
}


void ClearScreen(void)
{
	system("cls");
	for(int y = 0; y< 25; y++)
	{
		for(int x = 0; x<80;x++)
		{
			bg[y][x] = ' ';
		}
	}
}



void GameMain(void)
{
	KeyControl();
	BulletDraw();
	PlayerDraw();
}


void KeyControl(void)
{
	char pressKey;

	if(kbhit())
	{
		pressKey = getch();

		switch(pressKey)
		{
		case 72:
			playerY--;
			if(playerY < 1)
				playerY = 1;
				break;
		case 75:
			playerX--;
			if(playerX < 0)
				playerX = 0;
			break;
		case 77:
			playerX++;
			if(playerX > 75)
				playerX = 75;
			break;
		case 80:
			playerY++;
			if(playerY > 23)
				playerY = 23;
			break;
		case 32:
			if(fire == false)
			{
				fire = true;
				bulletX = playerX + 5;
				bulletY = playerY;
			}
			break;


		}
	}
}


void BulletDraw(void)
{
	if(fire != true)
	{
		return;
	}

	bg[bulletY][bulletX - 1] = '-';
	bg[bulletY][bulletX + 0] = '>';

	bulletX++;
	if(bulletX > 79)
	{
		fire = false;
	}

}

void PlayerDraw(void)
{
	bg[playerY - 1][playerX + 0] = '-';
	bg[playerY - 1][playerX + 1] = '>';
	bg[playerY + 0][playerX + 1] = '>';
	bg[playerY - 0][playerX + 2] = '>';
	bg[playerY - 0][playerX + 3] = '>';
	bg[playerY + 1][playerX + 0] = '-';
	bg[playerY + 1][playerX + 1] = '>';


}