public Game(ref char[] ScreenBuffer, Size ScreenSize)
{
this.Snake_Status = SnakeStatus.Alive;
this.ScreenSize = ScreenSize;
this.ScreenBuffer = ScreenBuffer;
int StartPos = ScreenSize.Width * (ScreenSize.Height / 2) - ScreenSize.Width / 2;
this.Snake = new SnakeAnimationHandle(SnakeStartLen, ScreenBuffer.Length, StartPos, StartDirection);
}
/// <summary>
/// Update the game and write in the buffer
/// </summary>
public void UpdateGame()
{
UpdateDirection();
// New Head Position
int SnakeHead = Snake.SnakePos[0];
int size = ScreenSize.Height * ScreenSize.Width; // Compute the value a unique time
switch (Snake.SnakeDirection)
{
case Direction.Right:
if (SnakeHead % ScreenSize.Width == ScreenSize.Width - 1) // Check if the snake hits the Screen Corner
{
SnakeHead -= (ScreenSize.Width - 1); // Set To the Left Side
}
else
{
SnakeHead++; // Move to right
}
break;
case Direction.Left:
if (SnakeHead % ScreenSize.Width == 0) // Check if the snake hits the Screen Corner
{
SnakeHead += (ScreenSize.Width - 1); // Set To the Right Side
}
else
{
SnakeHead--; // Move to Left
}
break;
case Direction.Up:
if (SnakeHead >= 0 && SnakeHead <= ScreenSize.Width) // Check if the snake hits the Screen Corner
{
SnakeHead = (size - ScreenSize.Width) + SnakeHead % ScreenSize.Width; // Set Snake to botton
}
else
{
SnakeHead -= (ScreenSize.Width); // Move Up
}
break;
case Direction.Down:
if (SnakeHead >= size - ScreenSize.Width && SnakeHead <= size) // Check if the snake hits the Screen Corner
{
SnakeHead = SnakeHead % ScreenSize.Width; // Set Snake to Top
}
else
{
SnakeHead += (ScreenSize.Width); // Move Down
}
break;
}
// Draw Food
Random food = new Random();
while (FoodCount < MaxFood)
{
int rnd = food.Next(0, ScreenBuffer.Length);
if (ScreenBuffer[rnd] != SnakeBody)
{
ScreenBuffer[rnd] = FoodChar;
FoodCount++;
}
}
// Check Food
if (ScreenBuffer[SnakeHead] == FoodChar)
{
Snake.SnakeSize++;
FoodCount--;
}
// Check Self Hit
if (ScreenBuffer[SnakeHead] == SnakeBody)
{
this.Snake_Status = SnakeStatus.Death;
}
// Draw the new Head
ScreenBuffer[SnakeHead] = SnakeBody;
ScreenBuffer[Snake.SnakePos[Snake.SnakeSize]] = '\0';
// Update the Snake Position
Snake.SnakePos = SnakeAnimationHandle.ShiftPos(Snake.SnakePos, Snake.SnakeSize);
Snake.SnakePos[0] = SnakeHead;
}
