LevelConfig should work now. Intervals are roughly seconds.

res/levels/test.level

@@ -2,10 +2,10 @@ name:Lustiger Levelname
 backgroundMusic:music/bla.wav
 background:FooBackground
 -
-[0-2025]
+[0-20]
-spawn:GegnerOne,2,6
+spawn:EnemyTwo,2,2
-[2026-2168]
+[21-25]
-spawn:GegnerOne,2,4
+spawn:EnemyThree,2,4
-spawn:GegnerTwo,5,6
+spawn:EnemyTwo,5,6
-[2169-2170]
+[26-30]
-spawn:BossGegner,1,1
+spawn:EnemyBoss,1,1

src/de/teamteamteam/spacescooter/level/Level.java

@@ -9,9 +9,10 @@ import de.teamteamteam.spacescooter.entity.enemy.EnemyOne;
 import de.teamteamteam.spacescooter.entity.enemy.EnemyThree;
 import de.teamteamteam.spacescooter.entity.enemy.EnemyTwo;
 import de.teamteamteam.spacescooter.entity.Entity;
-import de.teamteamteam.spacescooter.entity.Entity.availableNames;
 import de.teamteamteam.spacescooter.screen.GameScreen;
+import de.teamteamteam.spacescooter.utility.GameConfig;
 import de.teamteamteam.spacescooter.utility.Loader;
+import de.teamteamteam.spacescooter.utility.Random;
 
 /**
  * Implementation of the actual level based gameplay logic.
@@ -31,13 +32,14 @@ public final class Level {
 	 * Internal levelClock counter thing.
 	 * This is the "level time, we will use in our configs and such.
 	 */
-	private long levelClock;
+	private int levelClock;
 	
 	
 	/**
 	 * Constructor creating a LevelConfig based on a given config file.
 	 */
 	public Level(String levelConfig) {
+		this.levelClock = 0;
 		this.config = Loader.getLevelConfigByFilename(levelConfig);
 		System.out.println(this.config);
 	}
@@ -49,7 +51,6 @@ public final class Level {
 	public void doBuildUp() {
 		new StarBackground(0, 50);
 		GameScreen.setPlayer(new Player(200, 300));
-		
 	}
 	
 	/**
@@ -73,7 +74,37 @@ public final class Level {
 		if (Keyboard.isKeyDown(KeyEvent.VK_0)) {
 			new EnemyBoss(400,400);
 		}
+		//Increase levelClock
 		this.levelClock++;
+		//Check whether the current interval is configured
+		int currentIntervalIndex = this.config.getIntervalIndexByCurrentTime(this.levelClock);
+		if(currentIntervalIndex == -1) return; //Nothing to do
+		//Fetch the current interval
+		int[] currentInterval = this.config.intervalList.get(currentIntervalIndex);
+		int relativeTimeWithinCurrentInterval = this.levelClock - currentInterval[0];
+		int intervalLength = currentInterval[1] - currentInterval[0];
+		/*
+		 * @see <LevelConfig>
+		 * Get all the spawnrules for the current interval.
+		 * - 0: Interval this rule belongs to
+		 * - 1: EntityNumber - This helps to find out what Entity to actually spawn.
+		 * - 2: Amount - The amount of Entities to spawn at a time.
+		 * - 3: SpawnRate - The rate at which the Entities are supposed to be spawned.
+		 */
+		for(int[] spawnrule : this.config.spawnRuleList) {
+			//Skip spawn rules that are not in the current spawn interval.
+			if(spawnrule[0] != currentIntervalIndex) continue;
+			//Divide the current interval by spawnrate
+			int intervalModulus = intervalLength / spawnrule[3];
+			//Check whether the spawn rate strikes right now.
+			if(relativeTimeWithinCurrentInterval % Math.max(1,intervalModulus) == 0) {
+				//If the rule matches the current time, spawn the configured Entity in the configured amount:
+				for(int i=0; i<spawnrule[2]; i++) {
+					//TODO: More beautiful positions!
+					this.spawnEntityByAvailableName(Entity.availableNames.values()[spawnrule[1]], GameConfig.windowWidth - 75, Random.nextInt(GameConfig.windowHeight));
+				}
+			}
+		}
 	}
 	
 	/**
@@ -89,8 +120,7 @@ public final class Level {
 	 * Spawn an Entity by name on the given position.
 	 * Uses Entity.availableNames to determine the actual Entity to spawn.
 	 */
-	private void spawnEntityByName(String entityName, int x, int y) {
+	private void spawnEntityByAvailableName(Entity.availableNames entity, int x, int y) {
-		availableNames entity = Entity.availableNames.valueOf(entityName);
 		switch(entity) {
 			case EnemyOne:
 				new EnemyOne(x, y);
@@ -108,7 +138,7 @@ public final class Level {
 				new EnemyBoss(x, y);
 				break;
 			default:
-				System.err.println("Fuck you, i don't know what you mean with this!");
+				System.err.println("Fuck you, i don't know what you mean with this: " + entity);
 				break;
 		}
 	}

src/de/teamteamteam/spacescooter/level/LevelConfig.java

@@ -3,6 +3,8 @@ package de.teamteamteam.spacescooter.level;
 import java.util.ArrayList;
 import java.util.List;
 
+import de.teamteamteam.spacescooter.entity.Entity;
+
 /**
  * The actual LevelConfig.
  * It contains all the important details that are required to build the level up
@@ -31,12 +33,12 @@ public class LevelConfig {
 	 * - 2: Amount - The amount of Entities to spawn at a time.
 	 * - 3: SpawnRate - The rate at which the Entities are supposed to be spawned.
 	 */
-	public List<int[]> ruleList;
+	public List<int[]> spawnRuleList;
 	
 	
 	public LevelConfig() {
 		this.intervalList = new ArrayList<int[]>();
-		this.ruleList = new ArrayList<int[]>();
+		this.spawnRuleList = new ArrayList<int[]>();
 	}
 	
 	public String toString() {
@@ -51,7 +53,7 @@ public class LevelConfig {
 		sb.append(" bossEnemy=");
 		sb.append(this.bossEnemy);
 		sb.append("\\\n\tRules:\n");
-		for(int[] rule : this.ruleList) {
+		for(int[] rule : this.spawnRuleList) {
 			sb.append("\t");
 			sb.append(rule);
 			sb.append("\n");
@@ -65,7 +67,7 @@ public class LevelConfig {
 	 * TODO: Catch overlapping intervals and more!
 	 */
 	public void addIntervalToList(int intervalStart, int intervalEnd) {
-		if(this.getIntervalByBorders(intervalStart, intervalEnd) != -1) {
+		if(this.getIntervalIndexByBorders(intervalStart, intervalEnd) != -1) {
 			System.err.println("Duplicate interval - not added!");
 		} else {
 			int[] newInterval= {intervalStart, intervalEnd};
@@ -77,7 +79,7 @@ public class LevelConfig {
 	 * Return index of given interval.
 	 * Returns -1 in case the interval is not in the list.
 	 */
-	public int getIntervalByBorders(int intervalStart, int intervalEnd) {
+	public int getIntervalIndexByBorders(int intervalStart, int intervalEnd) {
 		for(int[] interval : this.intervalList) {
 			if(interval[0] == intervalStart && interval[1] == intervalEnd) {
 				return this.intervalList.indexOf(interval);
@@ -86,18 +88,31 @@ public class LevelConfig {
 		return -1;
 	}
 	
+	/**
+	 * Returns the index of the current interval the given time fits into.
+	 */
+	public int getIntervalIndexByCurrentTime(int time) {
+		for(int[] interval : this.intervalList) {
+			if(interval[0] <= time && interval[1] >= time) {
+				return this.intervalList.indexOf(interval);
+			}
+		}
+		return -1;
+	}
+	
 	/**
 	 * Add a given EntitySpawnRule to the ruleList.
 	 */
-	public void addEntitySpawnRule(int intervalStart, int intervalEnd, String enemyName, int amount, int spawnRate) {
+	public void addEntitySpawnRule(int intervalStart, int intervalEnd, String entityName, int amount, int spawnRate) {
-		System.out.println("Adding rule for " + intervalStart + " to " + intervalEnd + ": " + enemyName + ", " + amount + ", " + spawnRate);
+		System.out.println("Adding rule for " + intervalStart + " to " + intervalEnd + ": " + entityName + ", " + amount + ", " + spawnRate);
-		if(this.getIntervalByBorders(intervalStart, intervalEnd) == -1) {
+		int intervalIndex = this.getIntervalIndexByBorders(intervalStart, intervalEnd);
+		if(intervalIndex == -1) {
 			System.err.println("No Interval for rule found!");
-			System.err.println("Rule: " + intervalStart + " to " + intervalEnd + ": " + enemyName + ", " + amount + ", " + spawnRate);
+			System.err.println("Rule: " + intervalStart + " to " + intervalEnd + ": " + entityName + ", " + amount + ", " + spawnRate);
 		} else {
-			int enemyNumber = -1; //TODO: implement this!
+			int enemyNumber = Entity.availableNames.valueOf(entityName).ordinal();
-			int[] newRule = {enemyNumber, amount, spawnRate};
+			int[] newRule = {intervalIndex, enemyNumber, amount, spawnRate};
-			this.ruleList.add(newRule);
+			this.spawnRuleList.add(newRule);
 		}
 	}
 	

src/de/teamteamteam/spacescooter/level/LevelConfigParser.java

@@ -78,6 +78,7 @@ public class LevelConfigParser {
 					}
 					break;
 				case 1:
+					// Handle interval based rules
 					if (line.startsWith("[") && line.endsWith("]")) { //Handle interval definition
 						String interval = line.substring(1, line.length() - 1);
 						String[] intervalBorder = interval.split("-", 2);

src/de/teamteamteam/spacescooter/screen/GameScreen.java

@@ -27,6 +27,10 @@ public class GameScreen extends Screen {
 	 */
 	private Level level;
 	
+	/**
+	 * Internal counter that has to match a certain modulo to trigger the Level class within update().
+	 */
+	private long gameClockTrigger;
 	
 	/**
 	 * GameScreen Constructor.
@@ -37,6 +41,8 @@ public class GameScreen extends Screen {
 		this.level = new Level(levelConfigName);
 		this.level.doBuildUp(); //Have the level build up the whole setting.
 		
+		this.gameClockTrigger = 0;
+		
 		//Basic UI buildup - it's the same across all levels.
 		new InterfaceBar(0, 0);
 		new HealthBar(10, 5);
@@ -63,8 +69,12 @@ public class GameScreen extends Screen {
 	 */
 	@Override
 	protected void update() {
-		//The level will take care of whatever happens next.
+		this.gameClockTrigger++;
-		this.level.handleUpdateTick();
+		//The level will take care of whatever happens next every second.
+		if(this.gameClockTrigger % 100 == 0) {
+			this.gameClockTrigger = 0;
+			this.level.handleUpdateTick();
+		}
 		
 		//Take care of the usual bussiness
 		this.entityUpdateIterator.reset();