1. Gameprogrammeren: Edit states
Arjan Egges
Paul Bergervoet
Wouter van Toll

2. Level finished
Overlay

3. ‘Edit states’
Een edit state is een game state die gebruikt maakt van andere game states
Voorbeelden:
Game over state
Level finished state …

4. Plaats de overlay in het midden
LevelFinishedState
class LevelFinishedState : GameObjectList {
protected IGameLoopObject playingState;
public LevelFinishedState()
GameStateManager gm = GameEnvironment.GameStateManager;
playingState = gm.GetGameState("playingState");
SpriteGameObject o = new SpriteGameObject(“spr_welldone");
o.Position = new Vector2(GameEnvironment.Screen.X,
GameEnvironment.Screen.Y) / 2 - o.Center;
this.Add(o); } …
Plaats de overlay in het midden
van het scherm.

5. LevelFinishedState
public override void HandleInput(InputHelper inputHelper) {
if (!inputHelper.KeyPressed(Keys.Space))
return;
GameEnvironment.GameStateManager.SwitchTo("playingState");
(playingState as PlayingState).NextLevel(); }
public override void Update(GameTime gameTime) {
playingState.Update(gameTime);
public override void Draw(GameTime gameTime, SpriteBatch s) {
playingState.Draw(gameTime, s);
base.Draw(gameTime, s);

6. Level afgemaakt? public bool Completed { get
SpriteGameObject exitObj = this.Find("exit") as SpriteGameObject;
Player player = this.Find("player") as Player;
GameObjectList w = this.Find("waterdrops") as GameObjectList;
if (!exitObj.CollidesWith(player))
return false;
foreach (GameObject d in w.Objects)
if (d.Visible)
return true; }
Speler heeft de uitgang
nog niet bereikt
Alle waterdruppels zijn
nog niet verzameld

7. Update-actie van Level
public override void Update(GameTime gameTime) {
TimerGameObject timer = Find("timer") as TimerGameObject;
Player player = Find("player") as Player;
// check if we died …
// check if we ran out of time
// check if we won
base.Update(gameTime); }

8. Update-actie van Level
// check if we died
if (!player.IsAlive)
timer.Running = false;
// check if we ran out of time
if (timer.GameOver)
player.Explode();
// check if we won
if (this.Completed && timer.Running) {
player.LevelFinished(); }

9. public void Explode() {
if (!isAlive || finished)
return;
isAlive = false;
exploded = true;
velocity = Vector2.Zero;
position.Y += 15;
this.PlayAnimation("explode"); }
public void LevelFinished() {
finished = true;
velocity.X = 0.0f;
this.PlayAnimation("celebrate");
GameEnvironment.AssetManager.playSound("snd_player_won");