I'm trying to make a mod for 1.7.10 (I know, outdated, but I don't think it matters much in this context) merging a few mods with CustomNPC, basically adding a few weapons that would look and work like CustomNPC weapons but made of differen mods' materials. The shields the mod provides for some reason require a certain enum in their constructor:
public class ItemShield extends ItemNpcInterface {
public EnumNpcToolMaterial material;
public ItemShield(int par1, EnumNpcToolMaterial material) {
super(par1);
this.material = material;
setMaxDamage(material.getMaxUses());
setCreativeTab((CreativeTabs)CustomItems.tabWeapon);
}
The enum stores material types and all their values. I don't wanna edit the code of that mod iself, but I want to add a few more materials to it. Is there a way to add something to that enum or maybe cast an identical enum with different materials into this type?
I've already found a way around it by making a custom shield class that simply takes the values from my custom enum, but I'm curious if there's a way to do it without adding new classes.
EDIT
I think I'll add the mod's EnumNpcToolMaterial so it's more clear what exactly that shield constructor wants
public enum EnumNpcToolMaterial {
WOOD(0, 59, 2.0F, 0, 15),
STONE(1, 131, 4.0F, 1, 5),
BRONZE(2, 170, 5.0F, 2, 15),
IRON(2, 250, 6.0F, 2, 14),
DIA(3, 1561, 8.0F, 3, 10),
GOLD(0, 32, 12.0F, 1, 22),
EMERALD(3, 1000, 8.0F, 4, 10),
DEMONIC(3, 100, 8.0F, 6, 10),
FROST(2, 59, 6.0F, 3, 5),
MITHRIL(3, 3000, 8.0F, 3, 10);
private final int harvestLevel;
private final int maxUses;
private final float efficiencyOnProperMaterial;
private final int damageVsEntity;
private final int enchantability;
EnumNpcToolMaterial(int par3, int par4, float par5, int par6, int par7) {
this.harvestLevel = par3;
this.maxUses = par4;
this.efficiencyOnProperMaterial = par5;
this.damageVsEntity = par6;
this.enchantability = par7;
}
public int getMaxUses() {
return this.maxUses;
}
public float getEfficiencyOnProperMaterial() {
return this.efficiencyOnProperMaterial;
}
public int getDamageVsEntity() {
return this.damageVsEntity;
}
public int getHarvestLevel() {
return this.harvestLevel;
}
public int getEnchantability() {
return this.enchantability;
}
}
You're looking for EnumHelper.addEnum
. While there's no officially supported way to dynamically extend Enum
s in Java, there's enough need to do so in modded Minecraft that Forge created a class to automatically do all of the reflection and hackery needed to do so. You'd use it like this (untested):
EnumNpcToolMaterial ADAMANT = EnumHelper.addEnum(EnumNpcToolMaterial.class, "ADAMANT", new Class<?>[]{int.class, int.class, float.class, int.class, int.class}, new Object[]{3, 5000, 15.0F, 10, 30});
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