/// <summary>
/// Projectile ctor, sets the damage, speed, target, and colour
/// </summary>
/// <param name="damage">Damage projectile will do</param>
/// <param name="speed">Speed it travels</param>
/// <param name="enemy">Target it's aiming at</param>
/// <param name="color">colour of the projectile</param>
public Projectile(double damage, double speed, Enemy enemy, string color)
{
this.damage = damage;
this.speed = speed;
target = enemy;
Color = color;
}
/// <summary>
/// Updates this instance of EnemyWave class
/// </summary>
/// <param name="gameTime">current gametime</param>
public void update(GameTime gameTime)
{
// doesn't update if a certian time hasn't passed
if (gameTime.TotalGameTime - previousUpdateTime > spawnRate)
{
Random random = new Random();
if (waveSize <= 0 && Enemy.enemyList.Count == 0)
{
complete = true;
return;
}
if (waveSize-- > 0)
{
Enemy e = new Enemy(Map.currentMap);
int movementspeed = random.Next(20, 100);
e.movetime = TimeSpan.FromMilliseconds(movementspeed);
double newhealth = (70 * TDPlayerStats.currentWave) + movementspeed * (Math.Pow(TDPlayerStats.currentWave, 2));
e.SetHealth((int)newhealth);
}
spawnRate = TimeSpan.FromMilliseconds(random.Next(500, 4000));
previousUpdateTime = gameTime.TotalGameTime;
}
}
/// <summary>
/// BasicBolt Constructor
/// Sets the damage, speed, target, and current x/y positions, and colour
/// </summary>
/// <param name="damage">Damage the projectile does</param>
/// <param name="speed">Speed the projectile travels at</param>
/// <param name="enemy">Target of the projectile</param>
/// <param name="xpos">Starting X position in pixels</param>
/// <param name="ypos">starting Y position in pixels</param>
/// <param name="color">Colour of the projectile</param>
public BasicBolt(double damage, double speed, Enemy enemy, int xpos, int ypos, string color)
: base(damage, speed, enemy, color)
{
centerX = xpos;
centerY = ypos;
projectileSprite = new TDProjectileSprite();
TowerDefenseManager.TDLayers[2].AddEntity(projectileSprite);
projectileSprite.Position.Y = centerY ;
projectileSprite.Position.X = centerX ;
id = count++;
alive = true;
}
/// <summary>
/// Checks if the target is within range of the tower.
/// </summary>
/// <returns>If an enemy is within range it returns the distance
/// other wise it returns -1</returns>
public double isWithinRange(Enemy enemy)
{
double xdist = xposCenter - (enemy.xpos * 5);
double ydist = yposCenter - (enemy.ypos * 5);
double distance = Math.Sqrt(Math.Pow(xdist, 2) + Math.Pow(ydist, 2));
if (distance <= range)
return distance;
return -1;
}
