public virtual void Update(GameTime gameTime, Rectangle enemyFieldBound, Rectangle fieldBound)
{
// Toggles between alive animation states and dead animation states.
if (alive)
{
spriteAlive.UpdateFrame((float)gameTime.ElapsedGameTime.TotalSeconds);
time.update(gameTime);
}
if (!alive)
{
animating = spriteDead.UpdateFrameOnce((float)gameTime.ElapsedGameTime.TotalSeconds);
}
// Handles when enemy moves off screen. Otherwise subclasses must implement other update tasks.
if (!enemyFieldBound.Intersects(getRect()))
{
alive = false;
}
foreach (Bullet bullet in bullets)
{
bullet.Update(fieldBound);
}
}
// Update method for player character. Note that it does not replace the
// update method in Game1.cs
public void Update(GameTime gameTime)
{
if (gaugeLevel <= .25f)
{
multiplier = 1;
}
else if (.25 < gaugeLevel & gaugeLevel <= .6f)
{
multiplier = 2;
}
else if (.6f < gaugeLevel & gaugeLevel <= .85f)
{
multiplier = 3;
}
else if (gaugeLevel > .85f)
{
multiplier = 4;
}
if (alive || respawning)
{
// Decrease the food gauge by ~2.5% per second.
gaugeLevel -= .00035f;
// Get new keyboard state and assign it to PC keyboard state.
keyboardState = Keyboard.GetState();
gamePadState = GamePad.GetState(PlayerIndex.One);
// Call to PC move method.
Move();
// Call to PC fire method.
Fire();
// Update previous keyboard state.
prevKeyboardState = keyboardState;
flySprite.UpdateFrame((float)gameTime.ElapsedGameTime.TotalSeconds);
// Make sure gauge can't fall below 0 or above 1.
gaugeLevel = MathHelper.Clamp(gaugeLevel, 0, 1.0f);
}
else
{
// If we're not respawning we're dying. This call evaluates to !(true) while the death animation is still going.
// Once we're done animating the death sprite, we're now in respawn mode.
respawning = !(deathSprite.UpdateFrameOnce((float)gameTime.ElapsedGameTime.TotalSeconds));
}
// Respawn function.
if (respawning)
{
// If you're out of lives, this runs once and nothing happens except that you're completely dead at this point.
if (lives <= 0)
{
respawning = false;
doneAnimating = true;
}
// Increment the counter to know when to come back in.
respawnCounter++;
// Keep updating the flying animation for continuity.
flySprite.UpdateFrame((float)gameTime.ElapsedGameTime.TotalSeconds);
// If we have enough lives, put the player back in the default position after 1.5 seconds.
if (lives > 0 && respawnCounter == respawnTime)
{
position = new Vector2(viewportRect.Width / 2 - (width / 2), viewportRect.Height * .9f);
}
// After another 1.5 seconds, if the palyer has enough lives, take away the invincibility.
// Collsisions are checked in Collisions.cs which uses the respawning boolean to figure out whether to count the hits.
if (lives > 0 && respawnCounter == respawnTime * 2)
{
respawning = false;
alive = true;
deathSprite.Frame = 0;
}
}
// Update fireballs by calling each one.
foreach (Bullet fireball in fireballs)
{
fireball.Update(viewportRect);
}
}
