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switch (Math.floor(Math.random() * 2) + 1) {
    case 0:
        hits();
        break;

    case 1:
        stomp();
        break;

    case 2:
        strongPunch();
        break;
}

function hits() {
    var dataId = "-on-ability";

    if (npc.hasTempData(dataId)) {
        event.setCancelled(true);
        return;
    } 

    if (Math.random() * 100 > 15) {
        return;
    }

    var player = event.getSource();

    if (player == null)
        return;

    var API = world.getTempData("API");     
    npc.setTempData(dataId, true);

    API.runTaskTime(function() {
        var newPos = {
            x: player.getX(),
            y: player.getY(),
            z: player.getZ(),
        }

        player.knockback(1, npc.getRotation());
        npc.setPosition(newPos.x, newPos.y, newPos.z);
        world.spawnParticle("cloud", newPos.x, newPos.y, newPos.z, 0.2, 0.2, 0.2, 0.5, 20);
        npc.executeCommand("playsound minecraft:note.bassattack " + player.getName());
    }, 5, 15);

    API.runLater(function() {
        player.knockback(8, npc.getRotation());
        npc.removeTempData(dataId);
    }, 80);
}

function stomp() {
    if (Math.random() * 100 <= 15) {
        var nearbyEntities = npc.getSurroundingEntities(8, 1);
    
        world.spawnParticle("lava", npc.getX(), npc.getY(), npc.getZ(), 0.2, 0.2, 0.2, 0.5, 50);
        world.spawnParticle("smoke", npc.getX(), npc.getY(), npc.getZ(), 0.2, 0.2, 0.2, 0.5, 100);
        world.spawnParticle("flame", npc.getX(), npc.getY(), npc.getZ(), 0.2, 0.2, 0.2, 0.5, 80);
        world.spawnParticle("cloud", npc.getX(), npc.getY(), npc.getZ(), 0.2, 0.2, 0.2, 0.5, 100);
        npc.say("&c¡PISOTÓN!");

        for (var i = 0; i < nearbyEntities.length; i++) {
            var player = nearbyEntities[i];

            if (player == null)
                continue;

            world.explode(player.getX(), player.getY(), player.getZ(), 2, false, false); 
            player.knockback(4, npc.getRotation());
        }
    }  
}

function strongPunch() {
    var player = event.getTarget();

    if (player == null)
        return;

    if (Math.random() * 100 <= 20) {
        player.knockback(4, npc.getRotation());
        world.spawnParticle("smoke", npc.getX(), npc.getY(), npc.getZ(), 0.2, 0.2, 0.2, 0.5, 150);  
        npc.executeCommand("playsound jinryuudragonbc:DBC2.strongpunch " + player.getName());          
    }
}