BloodMagic/src/main/java/WayofTime/bloodmagic/registry/ModPotions.java

package WayofTime.bloodmagic.registry;

import WayofTime.bloodmagic.api.Constants;
import WayofTime.bloodmagic.potion.PotionBloodMagic;
import WayofTime.bloodmagic.potion.PotionEventHandlers;
import net.minecraft.potion.Potion;
import net.minecraft.util.ResourceLocation;

import java.lang.reflect.Field;
import java.lang.reflect.Modifier;

public class ModPotions {

    public static Potion drowning;
    public static Potion boost;
    public static Potion heavyHeart;

    public static void init() {
        if (Potion.potionTypes.length < 256) extendPortionArray();

        new PotionEventHandlers();

        //TODO FUTURE MAKE POTION TEXTURES

//        final String resourceLocation = Constants.Mod.MODID + ":textures/potions/";

//        drowning = new PotionBloodMagic("Drowning", new ResourceLocation(resourceLocation + drowning.getName().toLowerCase()), true, 0, 0, 0);
        boost = new PotionBloodMagic("Boost", new ResourceLocation("Minecraft:textures/gui/container/inventory.png")
//                new ResourceLocation(resourceLocation + boost.getName().toLowerCase())
                , false, 0, 0, 0);
//        heavyHeart = new PotionBloodMagic("Heavy Heart", new ResourceLocation(resourceLocation + heavyHeart.getName().toLowerCase()), true, 0, 0, 0);
    }

    public static void extendPortionArray() {
        Potion[] potionTypes;

        for (Field f : Potion.class.getDeclaredFields()) {
            f.setAccessible(true);
            try {
                if (f.getName().equals("potionTypes") || f.getName().equals("field_76425_a")) {
                    Field field = Field.class.getDeclaredField("modifiers");
                    field.setAccessible(true);
                    field.setInt(f, f.getModifiers() & ~Modifier.FINAL);

                    potionTypes = (Potion[]) f.get(null);
                    final Potion[] newPotionTypes = new Potion[256];
                    System.arraycopy(potionTypes, 0, newPotionTypes, 0, potionTypes.length);
                    f.set(null, newPotionTypes);
                }
            } catch (Exception e) {
                System.err.println(e);
            }
        }
    }
}