private void UpdateScreen(object sender, EventArgs e)
{
// Check for GameOver
if (Settings.GameOver)
{
// Check if 'Enter' is pressed
if (Input.KeyPressed(Keys.Enter))
{
StartGame();
}
}
else
{
if (Input.KeyPressed(Keys.Right) && Settings.Direction != Directions.LEFT)
Settings.Direction = Directions.RIGHT;
if (Input.KeyPressed(Keys.Left) && Settings.Direction != Directions.RIGHT)
Settings.Direction = Directions.LEFT;
if (Input.KeyPressed(Keys.Up) && Settings.Direction != Directions.DOWN)
Settings.Direction = Directions.UP;
if (Input.KeyPressed(Keys.Down) && Settings.Direction != Directions.UP)
Settings.Direction = Directions.DOWN;
MovePlayer();
}
// Close the game if 'Escape' is pressed
if (Input.KeyPressed(Keys.Escape))
this.Close();
PlayArea.Invalidate();
}
static void Main(string[] args)
{
/* *
* Declare + assign the variables
*/
// first we store the original size for post-gameover
int conW = Console.WindowWidth;
int conH = Console.WindowHeight;
// we set the console size to be the same as the playing field
int playW = 20;
int playH = 15;
Console.WindowWidth = playW;
Console.WindowHeight = playH;
// set the snake's head and its position
snek head = new snek();
head.colour = ConsoleColor.Cyan;
// start at a random position with intentional bullshit spawns
// we still want to be at least 1px off of the wall
head.posY = rand.Next(1, 14);
head.posX = rand.Next(1, 20);
// declare the tail
List <int> tailX = new List <int>();
List <int> tailY = new List <int>();
// set the fruit's position to a random position on the playing field
int fruitX = rand.Next(playW);
int fruitY = rand.Next(playH);
// initial movement direction, randomly generated for additional bullshit
string dir = "";
int dirRand = rand.Next(4);
switch (dirRand)
{
case 0:
dir = "u";
break;
case 1:
dir = "d";
break;
case 2:
dir = "l";
break;
case 3:
dir = "r";
break;
}
// score and gameover
int score = 0;
int gameover = 0;
// read high score from file in Snake/bin/Debug/netcoreapp3.1/highscore.txt
int highscore = 0;
if (File.Exists("highscore.txt"))
{
Int32.TryParse(File.ReadAllText("highscore.txt"), out highscore);
}
// these are needed to set the game at a pace of once per second
// i would like the game to run faster than this, but that is in the future
DateTime time;
DateTime time2;
/* *
* Gameplay
*/
while (true)
{
// Clear the console every movement iteration
PlayArea.ClearConsole(playW, playH);
// Draw the head
Console.SetCursorPosition(head.posX, head.posY);
Console.ForegroundColor = head.colour;
Console.Write("O");
// Draw the tail
for (int i = 0; i < tailX.Count(); i++)
{
Console.SetCursorPosition(tailX[i], tailY[i]);
Console.ForegroundColor = head.colour;
Console.Write("#");
// if head hits tail, declare a gameover
if (tailX[i] == head.posX && tailY[i] == head.posY)
{
gameover = 1;
}
}
tailX.Add(head.posX);
tailY.Add(head.posY);
// make tail only as long as the score
if (tailX.Count() > score || tailY.Count() > score)
{
tailX.RemoveAt(0);
tailY.RemoveAt(0);
}
// Draw the fruit
Console.SetCursorPosition(fruitX, fruitY);
Console.ForegroundColor = ConsoleColor.Green;
Console.Write("X");
Console.CursorVisible = false;
// Sync to time
time = DateTime.Now;
/* *
* Movement
*/
while (true)
{
time2 = DateTime.Now;
// scaling difficulty through different game speeds
if (score <= 5)
{
if (time2.Subtract(time).TotalMilliseconds > 500)
{
break;
}
}
else if (score > 5 && score <= 10)
{
if (time2.Subtract(time).TotalMilliseconds > 400)
{
break;
}
}
else if (score > 10 && score <= 15)
{
if (time2.Subtract(time).TotalMilliseconds > 300)
{
break;
}
}
else if (score > 15 && score <= 20)
{
if (time2.Subtract(time).TotalMilliseconds > 300)
{
break;
}
}
else if (score > 20 && score <= 25)
{
if (time2.Subtract(time).TotalMilliseconds > 200)
{
break;
}
}
else if (score > 25 && score <= 30)
{
if (time2.Subtract(time).TotalMilliseconds > 100)
{
break;
}
}
else if (score > 30)
{
if (time2.Subtract(time).TotalMilliseconds > 50)
{
break;
}
}
if (Console.KeyAvailable)
{
// read input
ConsoleKeyInfo input = Console.ReadKey(true);
// interpet the input
if (input.Key.Equals(ConsoleKey.UpArrow))
{
dir = "u";
}
if (input.Key.Equals(ConsoleKey.DownArrow))
{
dir = "d";
}
if (input.Key.Equals(ConsoleKey.LeftArrow))
{
dir = "l";
}
if (input.Key.Equals(ConsoleKey.RightArrow))
{
dir = "r";
}
}
}
/* END MOVEMENT */
switch (dir)
{
case "u":
head.posY--;
break;
case "d":
head.posY++;
break;
case "l":
head.posX--;
break;
case "r":
head.posX++;
break;
}
/* *
* Eating fruit
*/
// if head collides with fruit, award score and draw new fruit
if (head.posY == fruitY && head.posX == fruitX)
{
score++;
fruitY = rand.Next(playH);
fruitX = rand.Next(playW);
}
/* *
* The best part: death
*/
// kill if head goes outside boundaries
if (head.posY == -1 || head.posX == -1 || head.posY == playH || head.posX == playW)
{
gameover = 1;
}
// end the application if player reaches a gameover
if (gameover == 1)
{
break;
}
} /* END GAMEPLAY */
// The game-over screen runs after gameplay
// clear the area first
PlayArea.ClearConsole(playW, playH);
// write the score
Console.ForegroundColor = ConsoleColor.Red;
// we place the end text elsewhere than the first line
Console.SetCursorPosition(3, playH / 3);
// if score is below high we show both, otherwise just the new high score
if (score <= highscore)
{
Console.WriteLine("Game over!");
Console.SetCursorPosition(3, playH / 3 + 1);
Console.WriteLine("Score: " + score);
Console.SetCursorPosition(3, playH / 3 + 2);
Console.WriteLine("High Score: " + highscore);
}
else if (score > highscore)
{
Console.WriteLine("Game over!");
Console.SetCursorPosition(1, playH / 3 + 1);
Console.WriteLine("New High Score: " + score);
// overwrite content of highscore file or create it if it does not exist
File.WriteAllText("highscore.txt", score.ToString());
}
// place console output lines after game
// expect an input before actually closing the program to make it more interactive
Console.ReadKey();
Console.ForegroundColor = ConsoleColor.White;
// reset console size
Console.WindowWidth = conW;
Console.WindowHeight = conH;
} /* END MAIN */
