@Override
    public void tickCollisionEntities() {
        boolean volleyBallTest = true;

        float triggerDist = 4.0F;

        if (volleyBallTest) {
            double size = 1D;
            List entities = this.worldObj.getEntitiesWithinAABBExcludingEntity(this, this.boundingBox.expand(size, size, size));

            for (int i = 0; entities != null && i < entities.size(); ++i)
            {
                Entity var10 = (Entity)entities.get(i);

                if (var10 != null) {
                    if (!var10.isDead) {
                        if (var10 instanceof EntityPlayer) {
                            EntityPlayer entP = (EntityPlayer)var10;

                            if (entP.swingProgress > 0.2F) {
                                double speed = Math.sqrt(this.motionX * this.motionX + this.motionY * this.motionY + this.motionZ * this.motionZ);
                                System.out.println("dist: " + var10.getDistanceToEntity(this));
                                if (var10.getDistanceToEntity(this) < triggerDist) {
                                    System.out.println("hit ball!");
                                    hitEvent(this, var10);
                                }
                            }
                        }
                    }
                }
            }
        }
    }

    public void hitEvent(Entity ball, Entity player) {

        float hitPower = 0.5F;

        double vecX = ball.posX - player.posX;
        double vecY = ball.posY - player.posY;
        double vecZ = ball.posZ - player.posZ;

        Vec3 vecBallToPlayer = Vec3.createVectorHelper(vecX, vecY, vecZ).normalize();
        Vec3 vecThrust = getHitAim(player).normalize();

        //invert z to fix things
        vecThrust.zCoord *= -1;

        vecThrust.xCoord *= hitPower;
        vecThrust.yCoord *= hitPower;
        vecThrust.zCoord *= hitPower;

        ball.motionX = vecThrust.xCoord;
        ball.motionY = vecThrust.yCoord;
        ball.motionZ = vecThrust.zCoord;

        //more adjustments
        ball.motionY += 0.3F;
    }

    public Vec3 getHitAim(Entity ent) {
        float f1 = MathHelper.cos(ent.rotationYaw * 0.017453292F/* - (float)Math.PI*/);
        float f2 = MathHelper.sin(ent.rotationYaw * 0.017453292F/* - (float)Math.PI*/);
        float f3 = -MathHelper.cos(-ent.rotationPitch * 0.017453292F);
        float f4 = MathHelper.sin(-ent.rotationPitch * 0.017453292F);
        return Vec3.createVectorHelper((double)(f2 * f3), (double)f4, (double)(f1 * f3));
    }