Begin working on level config implementation a little.
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package de.teamteamteam.spacescooter.level;
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import java.util.ArrayList;
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import java.util.List;
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public class LevelConfig {
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public String name;
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public String background;
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public String backgroundMusic;
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public String bossEnemy;
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/**
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* Intervals have a start and an end.
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* They are put within this list in a sorted manner, ascending in values.
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* They are guaranteed to not overlap.
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*/
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public List<int[]> intervalList;
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/**
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* The entitySpawnRules are encoded here.
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* The first index is simply the number of the rule.
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* The second index reveals the values of the rule:
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* - 0: Interval this rule belongs to
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* - 1: EntityNumber - This helps to find out what Entity to actually spawn.
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* - 2: Amount - The amount of Entities to spawn at a time.
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* - 3: SpawnRate - The rate at which the Entities are supposed to be spawned.
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*/
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public List<int[]> ruleList;
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public LevelConfig() {
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this.intervalList = new ArrayList<int[]>();
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this.ruleList = new ArrayList<int[]>();
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}
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public String toString() {
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StringBuilder sb = new StringBuilder();
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sb.append("[LevelConfig");
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sb.append(" name=");
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sb.append(this.name);
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sb.append(" background=");
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sb.append(this.background);
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sb.append(" backgroundMusic=");
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sb.append(this.backgroundMusic);
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sb.append(" bossEnemy=");
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sb.append(this.bossEnemy);
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sb.append("\\\n\tRules:\n");
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for(int[] rule : this.ruleList) {
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sb.append("\t");
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sb.append(rule);
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sb.append("\n");
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}
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sb.append("]");
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return sb.toString();
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}
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/**
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* Add a given interval to the list in case it is not a duplicate.
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* TODO: Catch overlapping intervals and more!
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*/
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public void addIntervalToList(int intervalStart, int intervalEnd) {
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if(this.getIntervalByBorders(intervalStart, intervalEnd) != -1) {
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System.err.println("Duplicate interval - not added!");
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} else {
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int[] newInterval= {intervalStart, intervalEnd};
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this.intervalList.add(newInterval);
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}
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}
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/**
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* Return index of given interval.
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* Returns -1 in case the interval is not in the list.
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*/
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public int getIntervalByBorders(int intervalStart, int intervalEnd) {
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for(int[] interval : this.intervalList) {
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if(interval[0] == intervalStart && interval[1] == intervalEnd) {
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return this.intervalList.indexOf(interval);
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}
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}
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return -1;
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}
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/**
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* Add a given EntitySpawnRule to the ruleList.
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*/
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public void addEntitySpawnRule(int intervalStart, int intervalEnd, String enemyName, int amount, int spawnRate) {
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System.out.println("Adding rule for " + intervalStart + " to " + intervalEnd + ": " + enemyName + ", " + amount + ", " + spawnRate);
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if(this.getIntervalByBorders(intervalStart, intervalEnd) == -1) {
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System.err.println("No Interval for rule found!");
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System.err.println("Rule: " + intervalStart + " to " + intervalEnd + ": " + enemyName + ", " + amount + ", " + spawnRate);
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} else {
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int enemyNumber = -1; //TODO: implement this!
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int[] newRule = {enemyNumber, amount, spawnRate};
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this.ruleList.add(newRule);
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}
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}
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}
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@ -0,0 +1,137 @@
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package de.teamteamteam.spacescooter.level;
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import java.io.File;
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import java.util.Scanner;
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public class LevelConfigParser {
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/* DEBUG */
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public static void main(String[] args) {
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LevelConfigParser lcp = new LevelConfigParser();
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LevelConfig lc = lcp.parse("/home/stud/timmeja/Programmierprojekt/SpaceScooter/src/de/teamteamteam/spacescooter/level/temp.properties");
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System.out.println(lc);
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}
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/**
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* Internal LevelConfig instance to fill with data.
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*/
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private LevelConfig levelConfig;
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/**
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* Internal Scanner instance on the current file.
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*/
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private Scanner scanner;
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/**
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* Parse mode determining what to look out for.
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*/
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private int parseMode;
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/**
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* The start of the last read interval.
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*/
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private int currentIntervalStart;
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/**
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* The end of the last read interval.
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*/
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private int currentIntervalEnd;
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/**
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* Constructor. Initialize most internals to a safe state.
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*/
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public LevelConfigParser() {
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this.reset();
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}
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/**
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* Takes a given configFile and turns it into a LevelConfig object.
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*/
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public LevelConfig parse(String configFile) {
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this.reset();
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this.prepareScanner(configFile);
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while (this.scanner.hasNextLine()) {
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String line = this.scanner.nextLine().trim(); // Get next line trimmed.
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if(line.startsWith("#") || line.equals("")) continue; // Skip comments and empty lines.
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if(line.equals("-")) { //increase parse mode and continue.
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this.parseMode++;
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continue;
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}
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switch(parseMode) {
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case 0:
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// Handle configurable attributes
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if (line.contains(":")) {
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String[] linePieces = line.split(":", 2);
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// If the attribute is known, set it.
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if (linePieces[0].equals("name")) {
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this.levelConfig.name = linePieces[1];
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} else if (linePieces[0].equals("background")) {
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this.levelConfig.background = linePieces[1];
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} else if (linePieces[0].equals("backgroundMusic")) {
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this.levelConfig.backgroundMusic = linePieces[1];
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} else if (linePieces[0].equals("bossEnemy")) {
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this.levelConfig.bossEnemy = linePieces[1];
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} else {
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System.err.println("[LevelConfigParser] Unknown attribute in line: '" + line + "'");
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}
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}
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break;
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case 1:
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if (line.startsWith("[") && line.endsWith("]")) { //Handle interval definition
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String interval = line.substring(1, line.length() - 1);
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String[] intervalBorder = interval.split("-", 2);
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this.currentIntervalStart = Integer.parseInt(intervalBorder[0]);
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this.currentIntervalEnd = Integer.parseInt(intervalBorder[1]);
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this.levelConfig.addIntervalToList(this.currentIntervalStart, this.currentIntervalEnd);
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} else {
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String[] entitySpawnRule = line.split(",", 3);
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this.levelConfig.addEntitySpawnRule(this.currentIntervalStart, this.currentIntervalEnd, entitySpawnRule[0], Integer.parseInt(entitySpawnRule[1]), Integer.parseInt(entitySpawnRule[2]));
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}
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break;
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default:
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System.err.println("[LevelConfigParser] Where am i?!");
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this.printUnknownLine(line);
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break;
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}
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}
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return this.levelConfig;
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}
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/**
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* Prepares a Scanner for the file to parse.
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*/
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private void prepareScanner(String filename) {
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try {
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this.scanner = new Scanner(new File(filename));
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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/**
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* Reset internal parser state.
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*/
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private void reset() {
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this.parseMode = 0;
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this.levelConfig = new LevelConfig();
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this.currentIntervalStart = -1;
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this.currentIntervalEnd = -1;
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if(this.scanner != null) {
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this.scanner.close();
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this.scanner = null;
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}
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}
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/**
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* Debugging method - print an unknown line read.
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*/
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private void printUnknownLine(String line) {
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System.err.println("[LevelConfigParser] Unknown line?");
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System.err.println(line);
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System.err.println();
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}
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}
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@ -0,0 +1,10 @@
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name:Lustiger Levelname
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backgroundMusic:music/bla.wav
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background:FooBackground
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bossEnemy:TheBigOne
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-
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[0-2025]
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GegnerOne,2,6
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[2026-2168]
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GegnerOne,2,4
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GegnerTwo,5,6
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