Ejemplo n.º 1
0
        public override void Update(GameTime gameTime)
        {
            Vector3 direction = pathPoints[currentPoint] - pos;
            float distance = direction.LengthSquared();
            direction.Normalize();

            if (distance > 5)
            {
                spinY = (float)Math.Atan2(direction.X, direction.Z);
                pos += direction* 0.55f;
            }
            else
            {
                direction = Game1.getInstance().getPlayer().getPos() - pos;
                direction.Normalize();
                spinY = (float)Math.Atan2(direction.X, direction.Z);
                if (lastShot > 2.0f && !dying)
                {
                    //add offset to bullet to position it near the barrell of the tank
                    Bullet tempBullet = new Bullet(this, pos + (world.Left*3)+(world.Up *5), direction);
                    tempBullet.LoadContent();
                    Game1.getInstance().setBullet(tempBullet);
                    Shoot.Play();
                    lastShot = 0;
                    if (currentPoint < (pathPoints.Count - 1))
                    {
                        currentPoint++;
                    }
                    else
                    {
                        currentPoint = 0;
                    }
                }
                lastShot += (float)gameTime.ElapsedGameTime.TotalSeconds;

            }

            //center the bounding sphere on the tanks position
            bs.Center = pos + (world.Left * 5);

            //check for collisions with bullets
            for (int i = 0; i < Game1.getInstance().getNumBullets(); i++)
            {
                Bullet tempBullet = Game1.getInstance().getBullet(i);
                if (collidesWith(tempBullet.getBoundingSphere(), tempBullet.getWorld()) && tempBullet.getCreator() is Player)
                {
                    health--;
                    Hit.Play();
                    if (health == 0)
                    {
                        EnemyDying.Play();
                        dying = true;
                    }
                    tempBullet.setAlive(false);
                }
                if (dying)
                {
                    break;
                }
            }

            if (dying)
            {
                pos -= up * 2;
            }

            //check for collisions with obstacles
            for(int i = 0; i < Game1.getInstance().getNumObstacles(); i++)
            {
                Obstacle tempObstacle = Game1.getInstance().getObstacle(i);
                if (collidesWith(tempObstacle.getBoundingSphere(), tempObstacle.getWorld()))
                {
                    if (currentPoint < (pathPoints.Count - 1))
                    {
                        currentPoint++;
                    }
                    else
                    {
                        currentPoint = 0;
                    }
                }
            }

            //check for collisions with player
            if (collidesWith(Game1.getInstance().getPlayer().getBoundingSphere(), Game1.getInstance().getPlayer().getWorld()))
            {
                pos -= direction;
            }

            //each model has a world matrix for scale rotation and translation  NB: Translation MUST BE LAST
            world = Matrix.CreateScale(1f, 0.2f, 5.5f) * Matrix.CreateRotationY(spinY) * Matrix.CreateTranslation(pos);
        }
Ejemplo n.º 2
0
        public override void Update(GameTime gameTime)
        {
            GamePadState currentState = GamePad.GetState(PlayerIndex.One);
            KeyboardState keyState = Keyboard.GetState();

            // move camera left and right
            if (currentState.ThumbSticks.Right.X < 0 || keyState.IsKeyDown(Keys.Left))
            {
                yaw(MathHelper.ToRadians(0.5f));
            }

            if (currentState.ThumbSticks.Right.X > 0 || keyState.IsKeyDown(Keys.Right))
            {
                yaw(MathHelper.ToRadians(-0.5f));

            }

            //move camera forward and back
            if (currentState.ThumbSticks.Left.Y > 0 || keyState.IsKeyDown(Keys.Up))
            {
                forward(1);
            }

            if (currentState.ThumbSticks.Left.Y < 0 || keyState.IsKeyDown(Keys.Down))
            {
                backward(0.35f);
            }

            // limit the amount of bullets that can be spawned with last shot
            if ((currentState.Triggers.Right >0||keyState.IsKeyDown(Keys.Space)) && lastShot > 0.9)
            {
                //add offset to the bullet vector3 to center it in the crosshairs
                Bullet tempBullet = new Bullet(this, new Vector3(pos.X+0.06f, pos.Y-0.12f, pos.Z-1.5f), look);
                //load bullets loadcontent or it wont draw
                tempBullet.LoadContent();
                Game1.getInstance().setBullet(tempBullet);
                lastShot = 0;
                Shoot.Play();
            }
            lastShot += (float)gameTime.ElapsedGameTime.TotalSeconds;

            //collision detection stuff
            bs.Center = pos;

            if (collidesWith(Game1.getInstance().getEnemy().getBoundingSphere(), Game1.getInstance().getEnemy().getWorld()) && Game1.getInstance().getEnemy().isAlive())
            {
                hitCount++;
            }

            //check for collisions with bullets
            for (int i = 0; i < Game1.getInstance().getNumBullets();i++)
            {
                Bullet tempBullet = Game1.getInstance().getBullet(i);
                if (collidesWith(tempBullet.getBoundingSphere(), tempBullet.getWorld()) && tempBullet.getCreator() is Enemy)
                {
                    GettingHit.Play();

                    tempBullet.setAlive(false);
                    hitCount++;
                    health -=2;
                    Game1.getInstance().CheckForRumble(gameTime);
                    if (health <= 0)
                    {
                        alive = false;
                    }
                }
            }

            //check for collisions with obstacles
            for (int i = 0; i < Game1.getInstance().getNumObstacles(); i++)
            {
                Obstacle tempObstacle = Game1.getInstance().getObstacle(i);
                if (collidesWith(tempObstacle.getBoundingSphere(), tempObstacle.getWorld()))
                {
                    Crash.Play();
                    //player cant drive through obstaclesgit
                    collisionString = "collision: x: " + tempObstacle.getPos().X + " y: " + tempObstacle.getPos().Y + " Z: " + tempObstacle.getPos().Z;
                    if (currentState.ThumbSticks.Left.Y > 0 || keyState.IsKeyDown(Keys.Up))
                    {
                        backward(1.0f);
                    }

                    if (currentState.ThumbSticks.Left.Y < 0 || keyState.IsKeyDown(Keys.Down))
                    {
                        forward(1);
                    }
                }
            }
            //end of collision detection

            view = Matrix.CreateLookAt(pos, pos + look, up);
            world = Matrix.Identity;

            //projection is the view space, anything out of this range is not drawn
            projection = Matrix.CreatePerspectiveFieldOfView(MathHelper.ToRadians(45.0f), Game1.getInstance().getGraphics().GraphicsDevice.Viewport.AspectRatio, 1.0f, 1000.0f);
        }
Ejemplo n.º 3
0
 public void setBullet(Bullet bullet)
 {
     _bullets.Add(bullet);
 }