private void TimerAnimationTick(object sender, EventArgs e)
{
int index = -1;
//store three x position for opponent in an array
int[] arrayPositionOpponent = { 20, 140, 260 };
Random _rand = new Random();
foreach (Lane lane in _listLane)
{
lane.Move();
if (lane.Y > _pictureBoxRoadRacing.Height)
{
lane.Y -= _pictureBoxRoadRacing.Height + lane.Height;
}
}
if (_listOpponent.Count < 6)
{
int randomIndex = _rand.Next(0, 3);
int randomAppearance = _rand.Next(100);
int randomSpeed = _rand.Next(1, 10);
if (randomAppearance < 4)
{
//opponent appear in three possible x position randomly and at random speed
Opponent opponent = new Opponent(arrayPositionOpponent[randomIndex], -100, randomSpeed);
if (!CheckOpponentOverlap(opponent))
{
_listOpponent.Add(opponent);
}
}
}
foreach (Opponent opponent in _listOpponent)
{
opponent.Move();
if (opponent.Y > _pictureBoxRoadRacing.Height)
{
index = _listOpponent.IndexOf(opponent);
}
}
if (index != -1)
{
_listOpponent.RemoveAt(index);
}
_pictureBoxRoadRacing.Refresh();
}
private bool CheckOpponentOverlap(Opponent opponent)
{
if (_listOpponent != null)
{
foreach (Opponent existedOpponent in _listOpponent)
{
if (opponent.X == existedOpponent.X)
{
if (opponent.Y + opponent.Height > existedOpponent.Y - 1 && opponent.Y < existedOpponent.Y + existedOpponent.Height + 1)
{
return(true);
}
else if (opponent.Speed > existedOpponent.Speed)
{
return(true);
}
}
}
}
return(false);
}
/// <summary>
/// Check whether two opponents overlap with each other
/// </summary>
/// <param name="opponent"></param>
/// <returns></returns>
private bool CheckOpponentOverlap(Opponent opponent)
{
if (_listOpponent != null)
{
foreach (Opponent existedOpponent in _listOpponent)
{
//if they have the same x position
if (opponent.X == existedOpponent.X)
{
//if they overlap based on the y postion
if (opponent.Y + opponent.Height > existedOpponent.Y - 1 && opponent.Y < existedOpponent.Y + existedOpponent.Height + 1)
{
return(true);
}
//if this opponent has faster speed than the existed opponent, they could still overlap later
else if (opponent.Speed > existedOpponent.Speed)
{
return(true);
}
}
}
}
return(false);
}
/// <summary>
/// Timer for the animation
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void TimerAnimationTick(object sender, EventArgs e)
{
int index = -1;
//store three x position for opponent in an array
int[] arrayPositionOpponent = { 20, 140, 260 };
//create a random number
Random _rand = new Random();
foreach (Lane lane in _listLane)
{
//move all the lanes
lane.Move();
//if the lane is outside of the picture box, move it back to the top
if (lane.Y > _pictureBoxRoadRacing.Height)
{
lane.Y -= _pictureBoxRoadRacing.Height + lane.Height;
}
}
//if the count of the list for opponent is less than 6
if (_listOpponent.Count < 6)
{
int randomIndex = _rand.Next(0, 3);
int randomAppearance = _rand.Next(100);
int randomSpeed = _rand.Next(1, 10);
//if the random number is less than the difficulty, then an opponent is created
if (randomAppearance < _difficulty)
{
Bitmap bitmap0 = Properties.Resources.opponent_blue;
Bitmap bitmap1 = Properties.Resources.opponent_orange;
Bitmap bitmap2 = Properties.Resources.opponent_green;
Bitmap bitmap = Properties.Resources.opponent_blue;
int randomNumber = _rand.Next(0, 3);
switch (randomNumber)
{
case 0:
bitmap = bitmap0;
break;
case 1:
bitmap = bitmap1;
break;
case 2:
bitmap = bitmap2;
break;
}
//opponent appear in three possible x position randomly and at random speed and using one of the three bitmaps
Opponent opponent = new Opponent(arrayPositionOpponent[randomIndex], -100, randomSpeed, bitmap);
//if opponent doesnot overlap with another opponent and there is space for user to pass between opponents
if (!CheckOpponentOverlap(opponent) && AllowUserToSurvive(opponent))
{
//add the created opponent to the list for opponent
_listOpponent.Add(opponent);
}
}
}
foreach (Opponent opponent in _listOpponent)
{
//move every opponent in the list for opponent
opponent.Move();
//if user collide with an opponent
if (_user.Collide(opponent))
{
//stop all the timers
timerAnimation.Enabled = false;
timerSpeedUp.Enabled = false;
//show the label of Game Over
labelGameOver.Visible = true;
//store the best score
if (_bestScore < _score)
{
_bestScore = _score;
}
}
//if opponent is outside of the picture box, store its index value
if (opponent.Y > _pictureBoxRoadRacing.Height)
{
index = _listOpponent.IndexOf(opponent);
}
}
//remove the opponent from the list
if (index != -1)
{
_listOpponent.RemoveAt(index);
}
_pictureBoxRoadRacing.Refresh();
}
