base for cobblestone generator and levels

plugin/src/main/java/com/alttd/cometskyblock/configuration/CobblestoneGeneratorConfiguration.java

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+package com.alttd.cometskyblock.configuration;
+
+import com.alttd.cometskyblock.island.CobblestoneGeneratorLevel;
+import lombok.Getter;
+import org.spongepowered.configurate.objectmapping.ConfigSerializable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Getter
+@ConfigSerializable
+@SuppressWarnings({"CanBeFinal", "FieldMayBeFinal"})
+public class CobblestoneGeneratorConfiguration implements Configuration {
+
+    private List<CobblestoneGeneratorLevel> levels = new ArrayList<>();
+}

plugin/src/main/java/com/alttd/cometskyblock/island/CobblestoneGenerator.java

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+package com.alttd.cometskyblock.island;
+
+import com.alttd.cometskyblock.CometSkyBlockPlugin;
+import com.alttd.cometskyblock.configuration.CobblestoneGeneratorConfiguration;
+import com.alttd.cometskyblock.configuration.ConfigurationContainer;
+import lombok.Getter;
+
+@Getter
+public class CobblestoneGenerator {
+
+    private ConfigurationContainer<CobblestoneGeneratorConfiguration> cobblestoneGeneratorConfiguration;
+
+    public CobblestoneGenerator(CometSkyBlockPlugin plugin) {
+        cobblestoneGeneratorConfiguration = ConfigurationContainer.load(plugin.getSLF4JLogger(), plugin.getDataFolder().toPath(), CobblestoneGeneratorConfiguration.class, "coblestonegenerator");
+    }
+
+}

plugin/src/main/java/com/alttd/cometskyblock/island/CobblestoneGeneratorLevel.java

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+package com.alttd.cometskyblock.island;
+
+import lombok.Getter;
+import org.bukkit.Material;
+import org.spongepowered.configurate.objectmapping.ConfigSerializable;
+
+@Getter
+@ConfigSerializable
+public class CobblestoneGeneratorLevel {
+
+    private int level;
+    private int islandLevel;
+    private Material type;
+    private double chance;
+
+    @Override
+    public String toString() {
+        return "CobblestoneGeneratorLevel:" +
+                " level: " + level +
+                " islandLevel: " + islandLevel +
+                " type: " + type.toString() +
+                " chane: " + chance;
+    }
+}