public GameplayScreen()
{
TransitionOffTime = TimeSpan.FromSeconds(0.5f);
//Initialize interval spawn time to 2 seconds
spawnTimeInterval = 2000;
previousSpawnTime = 0;
//Initialize collections
obstacles = new List<Obstacle>();
enemies = new List<Enemy>();
enemiesWithObject = new List<EnemyWithObject>();
flyingEnemies = new List<FlyingEnemy>();
gems = new List<Gem>();
horizontalEnemies = new List<HorizontalEnemy>();
collisionAnimations = new List<Animation>();
// Initialize random number generator
random = new Random();
//Set the initial player score to zero
score = 0;
GameStarted = false;
gameOver = false;
gameOverTime = TimeSpan.Zero;
//Three seconds for the game over screen to be displayed after game over
initiateGameOver = TimeSpan.FromSeconds(3.0);
//Set the number of obstacles to be spawned at a time to be one
numberOfObstacles = 1;
//Set the distance between subsequent obstacles to 200 pixels
obstacleTimeDifference = 0;
numOfObjects = EnemyWithObject.NumberOfObjects.One;
}
//Updates the interval at which the items spawn based on player score
private void UpdateSpawnTimeInterval()
{
if (score > 400 && score < 800)
{
spawnTimeInterval = 1500;
}
else if (score >= 800 && score <= 1500)
{
spawnTimeInterval = 1200;
numberOfObstacles = 2;
obstacleTimeDifference = 250;
}
else if (score > 1500 && score <= 2500)
{
spawnTimeInterval = 1000;
numOfObjects = EnemyWithObject.NumberOfObjects.Two;
}
else if (score > 2500 && score <= 3500)
{
spawnTimeInterval = 800;
numberOfObstacles = 3;
}
else if (score > 3500 && score <= 4500)
{
spawnTimeInterval = 700;
}
else if (score > 3500 && score <= 4000)
{
spawnTimeInterval = 600;
}
else if (score > 4000 && score <= 5000)
{
spawnTimeInterval = 700;
}
else if (score > 5000 && score <= 6000)
{
spawnTimeInterval = 600;
}
else if (score > 6000 && score <= 7000)
{
spawnTimeInterval = 500;
}
else if (score > 7000)
{
spawnTimeInterval = 400;
}
if (score > 4000)
{
GenerateRandomNumberOfObstacles();
}
}
