Example #1
0
        public void Update(float timeDelta, Model[] asteroidModel, Camera camera)
        {
            for (int i = 0; i < asteroidList.Count(); i++)
            {
                asteroidList[i].Update(timeDelta);
                if (asteroidList[i].IsActive() == false)
                {
                    asteroidList[i].addLife(-1);
                    if (asteroidList[i].getLife() > 0)
                    {
                        //(-Y, X)
                        //(Y, -X)
                        //adds two more asteroids when one is destroyed
                        Vector3 perpendicularVector1 = new Vector3(-asteroidList[i].getVelocity().Y, asteroidList[i].getVelocity().X, 0); //maybe we should add bullet vector?
                        Vector3 perpendicularVector2 = new Vector3(asteroidList[i].getVelocity().Y, -asteroidList[i].getVelocity().X, 0); //maybe we should add bullet vector?
                        Vector3 newVector1           = ((asteroidList[i].getVelocity() * 2) + perpendicularVector1 + bulletVector) / 4;
                        Vector3 newVector2           = ((asteroidList[i].getVelocity() * 2) + perpendicularVector2 + bulletVector) / 4;
                        AddAsteroid(
                            asteroidModel[asteroidList[i].getLife() - 1], //pass in smaller roid
                            asteroidList[i].getPosition().X,              //pass in x position of parent roid
                            asteroidList[i].getPosition().Y,              //pass in y position of parent roid

                            newVector1.X,
                            newVector1.Y,
                            asteroidList[i].getSpeed(),
                            asteroidList[i].getLife(), 10 * asteroidList[i].getLife());// adds perpendicular vector (-y, x)

                        AddAsteroid(
                            asteroidModel[asteroidList[i].getLife() - 1], //pass in smaller model
                            asteroidList[i].getPosition().X,              //pass in x position of parent roid
                            asteroidList[i].getPosition().Y,              //pass in y position of parent roid
                            newVector2.X,
                            newVector2.Y,
                            asteroidList[i].getSpeed(),
                            asteroidList[i].getLife(), 10 * asteroidList[i].getLife());// adds perpendicular vector (y, -x)
                    }
                    int total = 25;
                    for (int j = 0; j < total; j++)
                    {
                        Vector3 velocity = new Vector3(1f * (float)(random.NextDouble() * 2 - 1), 1f * (float)(random.NextDouble() * 2 - 1), 0);
                        asteroidParticle.getParticles().Add(asteroidParticle.GenerateNewParticle(asteroidList[i].getPosition(), Vector3.Multiply(velocity, 0.1f), camera));
                    }
                    asteroidList.RemoveAt(i); // removes old asteroid
                    i--;
                }
            }
            asteroidParticle.Update();
        }
Example #2
0
        public void Update(KeyboardState state, Model bulletModel, Camera camera, float timeDelta)
        {
            spawnTimer -= timeDelta;
            //if (multiplier > 1)
            //{
            //    multiplier -= timeDelta * 5;
            //}
            //else
            //{
            //    multiplier = 1;
            //}

            if (spawnTimer <= 0.0f)
            {
                isSpawning = false;
                isVisible  = true;
            }
            else
            {
                isSpawning = true;
            }

            if (hasScored)
            {
                multiplier = multiplier * 2;
                score      = score + (10 * (int)multiplier);
                hasScored  = false;
            }

            if (!isActive)
            {
                explosion(camera);
                lives--;
                Reset();
            }

            if (state.IsKeyDown(Keys.Left) || state.IsKeyDown(Keys.A))
            {
                Rotation += 0.095f;
            }

            if (state.IsKeyDown(Keys.Right) || state.IsKeyDown(Keys.D))
            {
                Rotation -= 0.095f;
            }
            RotationMatrix = Matrix.CreateRotationZ(Rotation);

            VelocityAdd   = Vector3.Zero;
            VelocityAdd.X = (float)Math.Sin(Rotation);
            VelocityAdd.Y = -(float)Math.Cos(Rotation);
            VelocityAdd  /= 75;

            if (state.IsKeyDown(Keys.Up) || state.IsKeyDown(Keys.W))
            {
                setThrust(camera);
            }
            else
            {
                killThrust();
            }
            engineParticle.Update();
            explosionParticle.Update();

            Position -= Velocity;
            Velocity *= 0.999f;
            if (Position.X > GameConstants.PlayfieldSizeX)
            {
                Position.X -= 2 * GameConstants.PlayfieldSizeX;
            }
            if (Position.X < -GameConstants.PlayfieldSizeX)
            {
                Position.X += 2 * GameConstants.PlayfieldSizeX;
            }
            if (Position.Y > GameConstants.PlayfieldSizeY)
            {
                Position.Y -= 2 * GameConstants.PlayfieldSizeY;
            }
            if (Position.Y < -GameConstants.PlayfieldSizeY)
            {
                Position.Y += 2 * GameConstants.PlayfieldSizeY;
            }
        }