private void Form1_KeyDown(object sender, KeyEventArgs e)
{
// Set the player object to movingUp
if (e.KeyCode == Keys.W)
{
playerOne.movingUp = true;
}
// Set the player object to be movingDown
if (e.KeyCode == Keys.S)
{
playerOne.movingDown = true;
}
// Fire an arrow if there is not one in play and at it to the list of game objects
if (e.KeyCode == Keys.Space && arrow == null)
{
x = GameWindow.Width / 15; // x coordinate for arrow spawn
y = playerOne.yPos + 36; // current y coordinate of player bow
arrow = new MissileObject(x, y);
objects.Add(arrow);
}
// Restart the application and close the previous instance if the game is over
if (e.KeyCode == Keys.R && gameOverState == true)
{
Application.Restart();
Environment.Exit(0);
}
// Close the application
if (e.KeyCode == Keys.Escape)
{
Application.Exit();
}
}
private void FrameTick_Tick(object sender, EventArgs e)
{
// Update position of all GameObjects
foreach (GameObject n in objects)
{
n.UpdatePos();
}
for (int i = 0; i < enemyObjects.Count; i++) // Loop through all EnemyObjects
{
EnemyObject m = enemyObjects[i];
if (m.xPos < 0) // Check if an EnemyObject has passed the player
{
gameOverState = true;
// Stop timers
FrameTick.Enabled = false;
SpawnTick.Enabled = false;
BobTick.Enabled = false;
// Remove in game score counter
ScoreLabel.Visible = false;
// Position Game Over message based on resolution and turn it on
GameOverLabel.Left = GameWindow.Width / 2 - GameOverLabel.Width / 2;
GameOverLabel.Top = GameWindow.Height / 2 - GameOverLabel.Height / 2 - 32;
GameOverLabel.Visible = true;
// Position final score relative to Game Over message and turn it on
FinalScoreLabel.Text = "You scored: " + playerPoints + " - Press R to restart.";
FinalScoreLabel.Left = GameWindow.Width / 2 - FinalScoreLabel.Width / 2;
FinalScoreLabel.Top = GameOverLabel.Bottom + 13;
FinalScoreLabel.Visible = true;
}
if (arrow != null && IsColliding(m) == true) // Check if the an arrow has collided with an EnemyObject
{
// Update the score
playerPoints += m.killPoints;
ScoreLabel.Text = "Score: " + playerPoints;
// Calculate where to put unused objects based on resolution
y = GameWindow.Height + 256;
// Move the arrow off screen and set to null for garbage collection
arrow.SendToTrash(y);
arrow = null;
// Move the EnemyObject off screen and set to null for garbage collection
m.SendToTrash(y);
m = null;
}
}
if (arrow != null && arrow.xPos > GameWindow.Width) // Check if an arrow has left the screen
{
arrow = null; // Set arrow to null for garbage collection, and to let the player fire a new arrow
}
GameWindow.Invalidate(); // Invalidate the picture box to force the graphics to update
}