/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="e">Provides a snapshot of timing values.</param>
public override void Update(FrameEventArgs e)
{
// Checks if the player has collected all the coins needed to win the level
if (CoinsCollected >= NumberOfCoins)
{
sceneManager.ChangeScene(3); return;
}
// Game timing related features
float dt = (float)e.Time;
if (PowerUpTimer > 0)
{
// Manages when the Power up sound effect plays and for how long and also updates playing position
PowerUpTimer -= dt;
SoundEffects[4].UpdateEmitterPosition(sceneManager.camera.Position);
// This will only run once right after the power up is collected to prevent multiple sound effects playing
if (!isPowerUpSound)
{
// Updates the sound effects settings
SoundEffects[4].VolumeOfAudio = 0.4f;
SoundEffects[4].LoopPlayAudio = true;
SoundEffects[4].PlayAudio();
isPowerUpSound = true;
}
// If this passes then the power up period has finised and all returns to normal
if (PowerUpTimer <= 0)
{
PowerUpTimer = 0.0f;
isPowerUp = false;
isPowerUpSound = false;
// Make sure to clean up audio trail
SoundEffects[4].Close();
}
}
// This is required for the AI (and physics) system to work as the AI require deltatime to work consitently
SystemAI AI = (SystemAI)systemManager.FindSystem("SystemAI");
if (DebugGhosts)
{
AI.UpdateDeltaTime(0.0f);
}
else
{
AI.UpdateDeltaTime(dt);
}
// This is requried for consitent animation across systems
SystemAnimator Animator = (SystemAnimator)systemManager.FindSystem("SystemAnimator");
Animator.UpdateDeltaTime(dt);
// Updates the AI to follow the player when its position changes
ManageGhostTargets();
// Checks for trigger collisions that need acting on such as item pickup or ghost collision
ManageTriggerCollisions();
// Handles the player inputs to move the player
ManageMovement(dt);
}
