protected override void Update(GameTime gameTime)
{
KeyboardState CurrKeys = Keyboard.GetState();
MouseState CurrMouse = Mouse.GetState();
Particle2D BulletInfo, EnemyInfo;
List <int> ParticlesToRemove = new List <int>();
int Ctr, Cnt;
if (cAliveSince == 0)
{
cAliveSince = (uint)gameTime.TotalGameTime.TotalSeconds;
}
if (cLastAsteroid < gameTime.TotalGameTime.TotalMilliseconds) //Create new asteroid
{
if ((cSpawnNum % 3 != 0) && (cEnemyKills >= cAsteroids.ParticleList.Count))
{
for (Ctr = 0; Ctr < 1 + (cEnemyKills / 20); Ctr++)
{
CreateNewAsteroid(100, new Vector2(-1, -1));
}
}
else
{
Vector2 StartPos;
StartPos.X = (float)(cRandom.NextDouble() * cGraphDevMgr.GraphicsDevice.Viewport.Width);
StartPos.Y = cRandom.Next(-2, 1) * 60;
if (StartPos.Y == 0)
{
StartPos.Y = cGraphDevMgr.GraphicsDevice.Viewport.Height;
}
CreateNewHunter(60, StartPos);
}
cSpawnNum++;
cLastAsteroid = gameTime.TotalGameTime.TotalMilliseconds + 2000;
}
//Check for player input
Ctr = (int)(500 - cEnemyKillsMax); //Calculate the minimum time between shots
if (Ctr > 400)
{
Ctr = 400;
}
else if (Ctr < 100)
{
Ctr = 50;
}
if (((CurrKeys.IsKeyDown(Keys.Space) == true) || (CurrMouse.LeftButton == ButtonState.Pressed)) && (cLastShot < gameTime.TotalGameTime.TotalMilliseconds - Ctr))
{
PlayerFireBullet();
cLastShot = gameTime.TotalGameTime.TotalMilliseconds;
}
if ((CurrKeys.IsKeyDown(Keys.OemTilde) == true) && (cPriorKeyState.IsKeyDown(Keys.OemTilde) == false))
{
cDevConsole.ToggleVisible();
}
cUFOs.Update(gameTime);
cAsteroids.Update(gameTime);
cEnemyBullets.Update(gameTime);
cPlayerBullets.Update(gameTime);
cPlayerShip.Update(gameTime, CurrKeys, CurrMouse);
cSparkles.Update(gameTime);
cDevConsole.Update(gameTime, CurrKeys, CurrMouse);
//Collision detection
cPlayerShip.ImageTint = Color.White;
for (Cnt = 0; Cnt < cAsteroids.ParticleList.Count; Cnt++)
{
EnemyInfo = (Particle2D)cAsteroids.ParticleList[Cnt];
//Are bullts hitting the asteroid?
for (Ctr = 0; Ctr < cPlayerBullets.ParticleList.Count; Ctr++)
{
BulletInfo = (Particle2D)cPlayerBullets.ParticleList[Ctr];
if (BulletInfo.TestCollision(EnemyInfo.GetCollisionRegions()) == true)
{
CreateParticleBurst(new Vector2(EnemyInfo.TopLeft.X + (EnemyInfo.Width / 2), EnemyInfo.TopLeft.Y + (EnemyInfo.Height / 2)), 25 * EnemyInfo.Height / 6, EnemyInfo.Height / 3, Color.SaddleBrown, cTextureDict[Textures.Dust]);
//Spawn little asteroids
if (EnemyInfo.Height > 50)
{
Vector2 TopLeft;
TopLeft.X = EnemyInfo.TopLeft.X + (EnemyInfo.Width / 2) - (EnemyInfo.Width * 0.35f);
TopLeft.Y = EnemyInfo.TopLeft.Y + (EnemyInfo.Height / 2) - (EnemyInfo.Height * 0.35f);
CreateNewAsteroid((int)(EnemyInfo.Width * 0.7f), TopLeft);
CreateNewAsteroid((int)(EnemyInfo.Width * 0.7f), TopLeft);
}
//Destroy shot and large asteroid
ParticlesToRemove.Add(Cnt);
cPlayerBullets.ParticleList.RemoveAt(Ctr);
cEnemyKills++;
break; //Exit inner loop so each bullet ony gets 1 asteroid
}
}
//Is the asteroid hitting the player?
if (EnemyInfo.TestCollision(cPlayerShip) == true)
{
cPlayerShip.ImageTint = Color.Red;
CreateParticleBurst(new Vector2(EnemyInfo.TopLeft.X + (EnemyInfo.Width / 2), EnemyInfo.TopLeft.Y + (EnemyInfo.Height / 2)), 25 * EnemyInfo.Height / 6, EnemyInfo.Height / 3, Color.SaddleBrown, cTextureDict[Textures.Dust]);
//Spawn little asteroids
if (EnemyInfo.Height > 50)
{
Vector2 TopLeft;
TopLeft.X = EnemyInfo.TopLeft.X + (EnemyInfo.Width / 2) - (EnemyInfo.Width * 0.35f);
TopLeft.Y = EnemyInfo.TopLeft.Y + (EnemyInfo.Height / 2) - (EnemyInfo.Height * 0.35f);
CreateNewAsteroid((int)(EnemyInfo.Width * 0.7f), TopLeft);
CreateNewAsteroid((int)(EnemyInfo.Width * 0.7f), TopLeft);
}
//Destroy asteroid
ParticlesToRemove.Add(Cnt);
PlayerHit(gameTime);
}
}
for (Cnt = ParticlesToRemove.Count - 1; Cnt >= 0; Cnt--)
{
cAsteroids.ParticleList.RemoveAt(ParticlesToRemove[Cnt]);
}
ParticlesToRemove.Clear();
for (Cnt = 0; Cnt < cUFOs.ParticleList.Count; Cnt++)
{
EnemyInfo = (Particle2D)cUFOs.ParticleList[Cnt];
//Are bullts hitting the UFO?
for (Ctr = 0; Ctr < cPlayerBullets.ParticleList.Count; Ctr++)
{
BulletInfo = (Particle2D)cPlayerBullets.ParticleList[Ctr];
if (BulletInfo.TestCollision(EnemyInfo.GetCollisionRegions()) == true)
{
//Destroy shot and UFO
cPlayerBullets.ParticleList.RemoveAt(Ctr);
ParticlesToRemove.Add(Cnt);
cEnemyKills++;
CreateParticleBurst(new Vector2(EnemyInfo.TopLeft.X + (EnemyInfo.Width / 2), EnemyInfo.TopLeft.Y + (EnemyInfo.Height / 2)), 200, Color.OrangeRed);
break; //Exit inner loop so each bullet ony gets 1 enemy
}
}
//Is the UFO hitting the player?
if (EnemyInfo.TestCollision(cPlayerShip) == true)
{
cPlayerShip.ImageTint = Color.Red;
PlayerHit(gameTime);
}
}
for (Cnt = ParticlesToRemove.Count - 1; Cnt >= 0; Cnt--)
{
cUFOs.ParticleList.RemoveAt(ParticlesToRemove[Cnt]);
}
for (Cnt = 0; Cnt < cEnemyBullets.ParticleList.Count; Cnt++)
{
BulletInfo = (Particle2D)cEnemyBullets.ParticleList[Cnt];
//Is the bullet hitting the player?
if (BulletInfo.TestCollision(cPlayerShip) == true)
{
cEnemyBullets.ParticleList.RemoveAt(Cnt);
PlayerHit(gameTime);
}
}
cPriorKeyState = CurrKeys;
//Use monogame update
base.Update(gameTime);
}