first commit

src/main/java/de/lunarakai/minecleaner/ArenaList.java

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+package de.lunarakai.minecleaner;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.UUID;
+import java.util.logging.Level;
+import org.bukkit.Location;
+import org.bukkit.block.Block;
+import org.bukkit.configuration.ConfigurationSection;
+import org.bukkit.configuration.InvalidConfigurationException;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.entity.Player;
+
+public class ArenaList {
+    private static final String ARENAS_FILENAME = "mcl_arenas.yml";
+    private final MinecleanerPlugin plugin;
+    private File arenaFile;
+    private final HashMap<String, MinecleanerArena> arenas;
+    private final HashMap<UUID, MinecleanerArena> playersInArena;
+    private final HashMap<Location, MinecleanerArena> arenaBlocks;
+
+    public ArenaList(MinecleanerPlugin plugin) {
+        this.plugin = plugin;
+        this.arenas = new HashMap<>();
+        this.arenaFile = new File(plugin.getDataFolder(), ARENAS_FILENAME);
+        this.arenaBlocks = new HashMap<>();
+        this.playersInArena = new HashMap<>();
+    }
+
+    public void load() {
+        arenas.clear();
+        if(!this.arenaFile.isFile()) {
+            return;
+        }
+
+        YamlConfiguration conf = new YamlConfiguration();
+        try {
+            conf.load(this.arenaFile);
+        } catch(IOException | InvalidConfigurationException e) {
+            plugin.getLogger().log(Level.SEVERE, "Could not load arenas file", e); 
+        }
+        ConfigurationSection arenasSection = conf.getConfigurationSection("arenas");
+        if(arenasSection != null) {
+            for(String arenaName : arenasSection.getKeys(false)) {
+                ConfigurationSection arenaSection = arenasSection.getConfigurationSection(arenaName);
+                if(arenaSection != null) {
+                    MinecleanerArena arena = new MinecleanerArena(plugin, arenaSection);
+                    this.arenas.put(arena.getName(), arena);
+                    
+                }
+            }
+        }
+    }
+
+    public void save() {
+        YamlConfiguration conf = new YamlConfiguration();
+        ConfigurationSection arenaSection = conf.createSection("arenas");
+        int i = 0;
+        for(MinecleanerArena arena : this.arenas.values()) {
+            arena.save(arenaSection.createSection(Integer.toString(i++)));
+        }
+        this.arenaFile.getParentFile().mkdirs();
+        try {
+            conf.save(this.arenaFile);
+        } catch(IOException e) {
+            plugin.getLogger().log(Level.SEVERE, "Could not save arenas file", e);
+        }
+    }
+
+    /*private void setArenaBlocks(MinecleanerArena arena) {
+        for(Location location : arena.getBlocks()) {
+            arenaBlocks
+        }
+    }*/
+
+    public void setArenaForPlayer(Player player, MinecleanerArena arena) {
+        if(arena != null) {
+            playersInArena.put(player.getUniqueId(), arena);
+        } else {
+            playersInArena.remove(player.getUniqueId());
+        }
+    }
+
+    public MinecleanerArena getPlayerArena(Player player) {
+        return playersInArena.get(player.getUniqueId());
+    }
+
+    public MinecleanerArena getArenaAtBlock(Block block) {
+        return arenaBlocks.get(block.getLocation());
+    }
+
+
+}