/** @brief GameState transitioned from GameStart to GamePlay. */
void BeginPlay()
{
this.SpawnShip(this.shipPrefab);
// Spawn large asteroids
for (uint i = 0; i < this.currentLevel * 3; i++)
{
float startingX = (Random.value - 0.5f) * Globals.screenWidth;
float startingY = (Random.value - 0.5f) * Globals.screenHeight;
Vector3 pos = new Vector3(startingX, startingY, 0.0f);
GameObject newAsteroid = Instantiate(this.asteroidLargePrefab) as GameObject;
newAsteroid.transform.parent = this.guiAsteroids.transform;
newAsteroid.transform.localPosition = pos;
newAsteroid.name = "LargeAsteroid" + i.ToString();
AsteroidScript newAsteroidScript = newAsteroid.GetComponent <AsteroidScript>();
if (newAsteroidScript != null)
{
newAsteroidScript.SetSpeed((float)this.currentLevel * 2.0f);
newAsteroidScript.SetRotSpeed(60.0f, 60.0f, 60.0f);
}
this.AddAsteroid(newAsteroid);
}
// Spawn medium asteroids
for (uint i = 0; i < this.currentLevel * 3; i++)
{
float startingX = (Random.value - 0.5f) * Globals.screenWidth;
float startingY = (Random.value - 0.5f) * Globals.screenHeight;
Vector3 pos = new Vector3(startingX, startingY, 0.0f);
GameObject newAsteroid = Instantiate(this.asteroidMediumPrefab) as GameObject;
newAsteroid.transform.parent = this.guiAsteroids.transform;
newAsteroid.transform.localPosition = pos;
newAsteroid.name = "MediumAsteroid" + i.ToString();
AsteroidScript newAsteroidScript = newAsteroid.GetComponent <AsteroidScript>();
if (newAsteroidScript != null)
{
newAsteroidScript.SetSpeed((float)this.currentLevel * 2.0f);
newAsteroidScript.SetRotSpeed(60.0f, 60.0f, 60.0f);
}
this.AddAsteroid(newAsteroid);
}
GameStateScript.gameState = GameState.GamePlay;
}
/**
* @brief Scene showed to players before an active game session.
* @details This should show the game title, Asteroids, have an option to
* PLAY GAME or see HIGH SCORES. There will be asteroids flying around
* randomly in the background.
*/
private void GameStart()
{
// Reusing this is okay, since each reference (attaching to a parent
// transform, for example) retains the GameObject.
GameObject guiGO;
// Large ASTEROIDS title: GO and its component
guiGO = new GameObject("guiAsteroidsTitle");
guiGO.transform.parent = this.guiElements.transform;
guiGO.transform.localPosition = new Vector3(0.5f, 0.65f, 0.0f);
guiGameStartTitle = guiGO.AddComponent <GUIText>();
guiGameStartTitle.text = "ASTEROIDS";
guiGameStartTitle.anchor = TextAnchor.MiddleCenter;
guiGameStartTitle.alignment = TextAlignment.Center;
guiGameStartTitle.pixelOffset = Vector2.zero;
guiGameStartTitle.lineSpacing = 1.0f;
guiGameStartTitle.tabSize = 4.0f;
guiGameStartTitle.fontSize = 50;
guiGameStartTitle.fontStyle = FontStyle.Bold;
// Smaller "Press SPACE" text: GO and its component
guiGO = new GameObject("guiPressSpace");
guiGO.transform.parent = this.guiElements.transform;
guiGO.transform.localPosition = new Vector3(0.5f, 0.4f, 0.0f);
guiGameStartPlay = guiGO.AddComponent <GUIText>();
guiGameStartPlay.text = "Press SPACE to begin";
guiGameStartPlay.anchor = TextAnchor.MiddleCenter;
guiGameStartPlay.alignment = TextAlignment.Center;
guiGameStartPlay.pixelOffset = Vector2.zero;
guiGameStartPlay.lineSpacing = 1.0f;
guiGameStartPlay.tabSize = 4.0f;
guiGameStartPlay.fontSize = 20;
guiGameStartPlay.fontStyle = FontStyle.Normal;
// Bunch of random asteroids flying around. These will not be used in
// the actual game; they are just austhetics while we wait for the
// player to hit SPACE.
int numAsteroids = 30;
// All asteroids here will be set to increasing z-depths so they don't
// look funky as they overlap each other.
float startingZ = 0.0f;
for (; startingZ < (float)(numAsteroids / 3.0f); startingZ += 1.0f)
{
float startingX = (Random.value - 0.5f) * Globals.screenWidth;
float startingY = (Random.value - 0.5f) * Globals.screenHeight;
Vector3 pos = new Vector3(startingX, startingY, startingZ);
GameObject newAsteroid = Instantiate(this.asteroidLargePrefab) as GameObject;
newAsteroid.transform.parent = this.guiAsteroids.transform;
newAsteroid.transform.localPosition = pos;
newAsteroid.name = "LargeAsteroid" + Mathf.Floor(startingZ);
AsteroidScript newAsteroidScript = newAsteroid.GetComponent <AsteroidScript>();
if (newAsteroidScript != null)
{
newAsteroidScript.SetSpeed((float)this.currentLevel * 2.0f);
newAsteroidScript.SetRotSpeed(60.0f, 60.0f, 60.0f);
}
this.AddAsteroid(newAsteroid);
}
// Resume at previous z-depth
for (; startingZ < (float)(numAsteroids * 2.0f / 3.0f); startingZ += 1.0f)
{
float startingX = (Random.value - 0.5f) * Globals.screenWidth;
float startingY = (Random.value - 0.5f) * Globals.screenHeight;
Vector3 pos = new Vector3(startingX, startingY, startingZ);
GameObject newAsteroid = Instantiate(this.asteroidMediumPrefab) as GameObject;
newAsteroid.transform.parent = this.guiAsteroids.transform;
newAsteroid.transform.localPosition = pos;
newAsteroid.name = "MediumAsteroid" + Mathf.Floor(startingZ);
AsteroidScript newAsteroidScript = newAsteroid.GetComponent <AsteroidScript>();
if (newAsteroidScript != null)
{
newAsteroidScript.SetSpeed((float)this.currentLevel * 2.0f);
newAsteroidScript.SetRotSpeed(60.0f, 60.0f, 60.0f);
}
this.AddAsteroid(newAsteroid);
}
// Keep going at previous z-depth
for (; startingZ < (float)numAsteroids; startingZ += 1.0f)
{
float startingX = (Random.value - 0.5f) * Globals.screenWidth;
float startingY = (Random.value - 0.5f) * Globals.screenHeight;
Vector3 pos = new Vector3(startingX, startingY, startingZ);
GameObject newAsteroid = Instantiate(this.asteroidSmallPrefab) as GameObject;
newAsteroid.transform.parent = this.guiAsteroids.transform;
newAsteroid.transform.localPosition = pos;
newAsteroid.name = "SmallAsteroid" + Mathf.Floor(startingZ);
AsteroidScript newAsteroidScript = newAsteroid.GetComponent <AsteroidScript>();
if (newAsteroidScript != null)
{
newAsteroidScript.SetSpeed((float)this.currentLevel * 2.0f);
newAsteroidScript.SetRotSpeed(60.0f, 60.0f, 60.0f);
}
this.AddAsteroid(newAsteroid);
}
GameStateScript.UserInputPlay += UserInputPlay;
}
