minecraft-kajetans-mod/src/main/java/me/km/effects/ActiveEffectBase.java

package me.km.effects;

import me.km.KajetansMod;
import me.km.environment.EnvironmentAPI;
import me.km.snuviscript.ScriptEvents;
import net.minecraft.entity.player.EntityPlayerMP;

public abstract class ActiveEffectBase 
{
    protected abstract int getManaCost(int manaFactor);
    
    public int getCoolDown()
    {
        return 0;
    }
    
    public boolean run(EntityPlayerMP p, int power, int manaFactor, EffectCause cause)
    {
        if(cause != EffectCause.NOTHING)
        {
            if(KajetansMod.playerbank.getData(p).hasData("shadow"))
            {
                p.setInvisible(false);
                KajetansMod.playerbank.getData(p).removeData("shadow");
            } 
            if(KajetansMod.playerbank.getData(p).hasData("silence"))
            {
                KajetansMod.effects.send(p, "Du kannst gerade keine Skills nutzen.");
                return false;
            }
        }
        int manaCost = getManaCost(manaFactor);
        // Effect-Event-Start
        PlayerUsesEffectEvent e = new PlayerUsesEffectEvent(p, power, manaCost, cause, this.getClass());
        KajetansMod.scripts.getEvent(ScriptEvents.class).useEffectEvent(e);
        if(e.isCanceled())
        {
            return false;
        }
        else
        {
            power = e.getPower();
            manaFactor = e.getMana();
        }
        // Effect-Event-End
        if(p.isCreative())
        {
            return executeEffect(p, power);
        }
        if(!KajetansMod.playerbank.getData(p).hasData(this.getClass().getSimpleName()))
        {
            if(manaFactor == 0)
            {
                if(executeEffect(p, power))
                {
                    int cooldown = getCoolDown();
                    if(cooldown > 0)
                    {
                        KajetansMod.playerbank.getData(p).addTimedData(this.getClass().getSimpleName(), cooldown);
                    }
                    return true;
                }
                return false;
            }
            int mana = EnvironmentAPI.getMana(p);
            if(mana < manaCost)
            {
                KajetansMod.effects.send(p, "Du hast zu wenig Mana. (§a" + mana + "§r/§c" + manaCost + "§r)");
                return false;
            }
            if(executeEffect(p, power))
            {
                int cooldown = getCoolDown();
                if(cooldown > 0)
                {
                    KajetansMod.playerbank.getData(p).addTimedData(this.getClass().getSimpleName(), cooldown);
                }
                EnvironmentAPI.changeMana(p, -manaCost);
                return true;
            }
            return false;
        }
        KajetansMod.effects.send(p, "Der Cooldown läuft noch.");
        return false;
    }
    
    protected abstract boolean executeEffect(EntityPlayerMP p, int power);
    
    public static boolean executeEffect(Class<? extends ActiveEffectBase> c, EntityPlayerMP p, int power, int manaFactor, EffectCause cause)
    {
        if(c == null)
        {
            return false;
        }
        try
        {
            return c.newInstance().run(p, power, manaFactor, cause);
        }
        catch(SecurityException | InstantiationException | IllegalAccessException | IllegalArgumentException ex)
        {
            throw new IllegalArgumentException();
        }
    }
}