A whole bunch of more work to convert Salvage to a child skill

src/main/java/com/gmail/nossr50/skills/salvage/salvageables/Salvageable.java

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+package com.gmail.nossr50.skills.salvage.salvageables;
+
+import org.bukkit.Material;
+
+import com.gmail.nossr50.datatypes.skills.ItemType;
+import com.gmail.nossr50.datatypes.skills.MaterialType;
+
+public interface Salvageable {
+    /**
+     * Gets the type of this repairable item
+     *
+     * @return the type of this repairable
+     */
+    public Material getItemMaterial();
+
+    /**
+     * Gets the id of the material used to repair this item
+     *
+     * @return the id of the repair material
+     */
+    public Material getSalvageMaterial();
+
+    /**
+     * Gets the metadata byte value of the material used to repair this item
+     *
+     * @return the byte metadata of the repair material
+     */
+    public byte getSalvageMaterialMetadata();
+
+    /**
+     * Gets the RepairItemType value for this repairable item
+     *
+     * @return the RepairItemType for this repairable
+     */
+    public ItemType getSalvageItemType();
+
+    /**
+     * Gets the RepairMaterialType value for this repairable item
+     *
+     * @return the RepairMaterialType for this repairable
+     */
+    public MaterialType getSalvageMaterialType();
+
+    /**
+     * Gets the maximum quantity of salvage materials ignoring all other salvage bonuses
+     *
+     * This is typically set to the number of items needed to create that item, for example 5 for helmets or 2 for swords
+     *
+     * @return the maximum number of items
+     */
+    public int getMaximumQuantity();
+
+    /**
+     * Gets the maximum durability of this item before it breaks
+     *
+     * @return the maximum durability
+     */
+    public short getMaximumDurability();
+
+    /**
+     * Gets the base repair durability on which to calculate bonuses.
+     *
+     * This is actually the maximum durability divided by the minimum quantity
+     *
+     * @return the base repair durability
+     */
+    public short getBaseSalvageDurability();
+
+    /**
+     * Gets the minimum repair level needed to repair this item
+     *
+     * @return the minimum level to repair this item, or 0 for no minimum
+     */
+    public int getMinimumLevel();
+
+    /**
+     * Gets the xpMultiplier for this repairable
+     *
+     * @return the xpMultiplier of this repairable
+     */
+    public double getXpMultiplier();
+}

src/main/java/com/gmail/nossr50/skills/salvage/salvageables/SalvageableFactory.java

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+package com.gmail.nossr50.skills.salvage.salvageables;
+
+import org.bukkit.Material;
+
+import com.gmail.nossr50.datatypes.skills.ItemType;
+import com.gmail.nossr50.datatypes.skills.MaterialType;
+
+public class SalvageableFactory {
+    public static Salvageable getSalvageable(Material itemMaterial, Material repairMaterial, byte repairMetadata, int maximumQuantity, short maximumDurability) {
+        return getSalvageable(itemMaterial, repairMaterial, repairMetadata, 0, maximumQuantity, maximumDurability, ItemType.OTHER, MaterialType.OTHER, 1);
+    }
+
+    public static Salvageable getSalvageable(Material itemMaterial, Material repairMaterial, byte repairMetadata, int minimumLevel, int maximumQuantity, short maximumDurability, ItemType repairItemType, MaterialType repairMaterialType, double xpMultiplier) {
+        // TODO: Add in loading from config what type of repairable we want.
+        return new SimpleSalvageable(itemMaterial, repairMaterial, repairMetadata, minimumLevel, maximumQuantity, maximumDurability, repairItemType, repairMaterialType, xpMultiplier);
+    }
+}

src/main/java/com/gmail/nossr50/skills/salvage/salvageables/SalvageableManager.java

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+package com.gmail.nossr50.skills.salvage.salvageables;
+
+import java.util.List;
+
+import org.bukkit.Material;
+import org.bukkit.inventory.ItemStack;
+
+public interface SalvageableManager {
+    /**
+     * Register a salvageable with the SalvageManager
+     *
+     * @param salvageable Salvageable to register
+     */
+    public void registerSalvageable(Salvageable salvageable);
+
+    /**
+     * Register a list of salvageables with the SalvageManager
+     *
+     * @param salvageables List<Salvageable> to register
+     */
+    public void registerSalvageables(List<Salvageable> salvageables);
+
+    /**
+     * Checks if an item is salvageable
+     *
+     * @param type Material to check if salvageable
+     *
+     * @return true if salvageable, false if not
+     */
+    public boolean isSalvageable(Material type);
+
+    /**
+     * Checks if an item is salvageable
+     *
+     * @param itemStack Item to check if salvageable
+     *
+     * @return true if salvageable, false if not
+     */
+    public boolean isSalvageable(ItemStack itemStack);
+
+    /**
+     * Gets the salvageable with this type
+     *
+     * @param type Material of the salvageable to look for
+     *
+     * @return the salvageable, can be null
+     */
+    public Salvageable getSalvageable(Material type);
+}

src/main/java/com/gmail/nossr50/skills/salvage/salvageables/SimpleSalvageable.java

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+package com.gmail.nossr50.skills.salvage.salvageables;
+
+import org.bukkit.Material;
+
+import com.gmail.nossr50.datatypes.skills.ItemType;
+import com.gmail.nossr50.datatypes.skills.MaterialType;
+
+
+public class SimpleSalvageable implements Salvageable {
+    private final Material itemMaterial, salvageMaterial;
+    private final int maximumQuantity, minimumLevel;
+    private final short maximumDurability, baseSalvageDurability;
+    private final byte salvageMetadata;
+    private final ItemType salvageItemType;
+    private final MaterialType salvageMaterialType;
+    private final double xpMultiplier;
+
+    protected SimpleSalvageable(Material type, Material salvageMaterial, byte salvageMetadata, int minimumLevel, int maximumQuantity, short maximumDurability, ItemType salvageItemType, MaterialType salvageMaterialType, double xpMultiplier) {
+        this.itemMaterial = type;
+        this.salvageMaterial = salvageMaterial;
+        this.salvageMetadata = salvageMetadata;
+        this.salvageItemType = salvageItemType;
+        this.salvageMaterialType = salvageMaterialType;
+        this.minimumLevel = minimumLevel;
+        this.maximumQuantity = maximumQuantity;
+        this.maximumDurability = maximumDurability;
+        this.baseSalvageDurability = (short) (maximumDurability / maximumQuantity);
+        this.xpMultiplier = xpMultiplier;
+    }
+
+    @Override
+    public Material getItemMaterial() {
+        return itemMaterial;
+    }
+
+    @Override
+    public Material getSalvageMaterial() {
+        return salvageMaterial;
+    }
+
+    @Override
+    public byte getSalvageMaterialMetadata() {
+        return salvageMetadata;
+    }
+
+    @Override
+    public ItemType getSalvageItemType() {
+        return salvageItemType;
+    }
+
+    @Override
+    public MaterialType getSalvageMaterialType() {
+        return salvageMaterialType;
+    }
+
+    @Override
+    public int getMaximumQuantity() {
+        return maximumQuantity;
+    }
+
+    @Override
+    public short getMaximumDurability() {
+        return maximumDurability;
+    }
+
+    @Override
+    public short getBaseSalvageDurability() {
+        return baseSalvageDurability;
+    }
+
+    @Override
+    public int getMinimumLevel() {
+        return minimumLevel;
+    }
+
+    @Override
+    public double getXpMultiplier() {
+        return xpMultiplier;
+    }
+}

src/main/java/com/gmail/nossr50/skills/salvage/salvageables/SimpleSalvageableManager.java

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+package com.gmail.nossr50.skills.salvage.salvageables;
+
+import java.util.HashMap;
+import java.util.List;
+
+import org.bukkit.Material;
+import org.bukkit.inventory.ItemStack;
+
+
+public class SimpleSalvageableManager implements SalvageableManager {
+    private HashMap<Material, Salvageable> salvageables;
+
+    public SimpleSalvageableManager() {
+        this(55);
+    }
+
+    public SimpleSalvageableManager(int salvageablesSize) {
+        this.salvageables = new HashMap<Material, Salvageable>(salvageablesSize);
+    }
+
+    @Override
+    public void registerSalvageable(Salvageable salvageable) {
+        Material item = salvageable.getItemMaterial();
+        salvageables.put(item, salvageable);
+    }
+
+    @Override
+    public void registerSalvageables(List<Salvageable> salvageables) {
+        for (Salvageable salvageable : salvageables) {
+            registerSalvageable(salvageable);
+        }
+    }
+
+    @Override
+    public boolean isSalvageable(Material type) {
+        return salvageables.containsKey(type);
+    }
+
+    @Override
+    public boolean isSalvageable(ItemStack itemStack) {
+        return isSalvageable(itemStack.getType());
+    }
+
+    @Override
+    public Salvageable getSalvageable(Material type) {
+        return salvageables.get(type);
+    }
+}