public static void DoCollisions(Bullet b)
{
for (int i = Bullets.Count; i > 0; i--)
{
if (MHelper.Vector2Distance(Bullets[i - 1].Position, PlayerPosition) > 1000)
{
Bullets.RemoveAt(i - 1);
}
}
}
internal static void Update()
{
nextScoreUp -= gameTime.ElapsedGameTime.Milliseconds;
if (nextScoreUp <= 0)
{
nextScoreUp += 1000;
PlayerScore += 1;
}
#region PLAYER_UPDATE
float new_direction = 0;
bool have_new_direction = false;
foreach (GestureSample gs in Game.gestureSamples)
{
if (gs.GestureType == GestureType.Tap || gs.GestureType == GestureType.FreeDrag)
{
new_direction = (float)Math.Atan2((gs.Position.Y - 240), (gs.Position.X - 400));
have_new_direction = true;
}
}
if (have_new_direction)
{
target_direction = new_direction;
}
PlayerDirection = ChaseAndEvade.TurnToFace(target_direction, PlayerDirection);
PlayerPosition.X += (float)(PlayerSpeed * Math.Cos(PlayerDirection));
PlayerPosition.Y += (float)(PlayerSpeed * Math.Sin(PlayerDirection));
for (int i = Bullets.Count; i > 0; i--)
{
if (Bullets[i - 1].Colour != Color.LimeGreen)
{
if (MHelper.Vector2Distance(Bullets[i - 1].Position, PlayerPosition) < 20)
{
PlayerHealth -= 1;
Bullets.RemoveAt(i - 1);
break;
}
}
}
#endregion
#region BULLET_UPDATE
PlayerNextFire -= gameTime.ElapsedGameTime.Milliseconds;
if (PlayerNextFire <= 0)
{
Bullet b = new Bullet();
b.Colour = Color.LimeGreen;
b.Position = new Vector2(PlayerPosition.X, PlayerPosition.Y);
b.Direction = PlayerDirection;
b.Speed = PlayerSpeed * 2;
Bullets.Add(b);
PlayerNextFire += PlayerFireRate;
}
for (int i = 0; i < Bullets.Count; i++)
{
Bullet b = Bullets[i];
b.Position.X += (int)(b.Speed * Math.Cos(b.Direction));
b.Position.Y += (int)(b.Speed * Math.Sin(b.Direction));
DoCollisions(b);
}
#endregion
#region PICKUPS_UPDATE
for (int i = 0; Pickups.Count < 3; i++)
{
Pickup p = new Pickup();
p.WhatAmI = random.Next(20);
p.Position = new Vector2(PlayerPosition.X + random.Next(-2000, 2000), PlayerPosition.Y + random.Next(-2000, 2000));
Pickups.Add(p);
}
for (int i = Pickups.Count; i > 0; i--)
{
if (MHelper.Vector2Distance(PlayerPosition, Pickups[i - 1].Position) > 1500)
{
Pickups.RemoveAt(i - 1);
}
else if (MHelper.Vector2Distance(PlayerPosition, Pickups[i - 1].Position) < 50)
{
PickupScreen ps = new PickupScreen();
ps.PickupType = Pickups[i - 1].WhatAmI;
Pickups.RemoveAt(i - 1);
Game.PushPopUpScreen(ps);
}
}
#endregion
#region ENEMIES_UPDATE
while (Enemies.Count < EnemyCounter)
{
Enemy e = new Enemy((int)(PlayerPosition.X + random.Next(-850, 850)), (int)(PlayerPosition.Y + random.Next(-850, 850)), (int)(GameState.PlayerSpeed - 2), 0.5f);
switch (random.Next(5))
{
case 0: e.Colour = Color.Red; break;
case 1: e.Colour = Color.Magenta; break;
case 2: e.Colour = Color.DarkViolet; break;
case 3: e.Colour = Color.DeepPink; break;
default: e.Colour = Color.DarkOrange; break;
}
Enemies.Add(e);
}
for (int j = Enemies.Count; j > 0; j--)
{
if (MHelper.Vector2Distance(Enemies[j - 1].Position, PlayerPosition) > 2500)
{
Enemies.RemoveAt(j - 1);
}
else
{
for (int i = Bullets.Count; i > 0; i--)
{
if (Bullets[i - 1].Colour != Enemies[j - 1].Colour)
{
if (MHelper.Vector2Distance(Bullets[i - 1].Position, Enemies[j - 1].Position) < 20)
{
Enemies.RemoveAt(j - 1);
if (Bullets[i - 1].Colour == Color.LimeGreen)
PlayerScore += 25;
Bullets.RemoveAt(i - 1);
break;
}
}
}
}
}
foreach (Enemy e in Enemies)
{
e.Run(Enemies);
e.seek(PlayerPosition);
}
#endregion
}
public void Run(List<Enemy> enemies)
{
Flock(enemies);
//ChaseEvade(enemies);
nextFire -= GameState.gameTime.ElapsedGameTime.Milliseconds;
if (nextFire <= 0)
{
nextFire += FireRate;
Bullet b = new Bullet();
b.Damage = 1;
b.Direction = Direction;
b.Speed = 2 * Speed;
b.Colour = Colour;
b.Position = new Vector2(Position.X, Position.Y);
GameState.Bullets.Add(b);
}
Update();
}