Rideable and Steerable mob with no AI

I am trying to figure out how to make a mob rideable and steerable without having it an AI. Usually i based it on the horse AI but now i dont want to have an AI. I tried looking in the horse code and changed some things without luck. If anyone knows how to do this it would be a great help. Current Code to ride: 

public void travel(float strafe, float vertical, float forward) {
            if (this.isBeingRidden() && this.canBeSteered()) {
                EntityLivingBase entitylivingbase = (EntityLivingBase) this.getControllingPassenger();
                this.rotationYaw = entitylivingbase.rotationYaw;
                this.prevRotationYaw = this.rotationYaw;
                this.rotationPitch = entitylivingbase.rotationPitch * 0.5F;
                this.setRotation(this.rotationYaw, this.rotationPitch);
                this.renderYawOffset = this.rotationYaw;
                this.rotationYawHead = this.renderYawOffset;
                strafe = entitylivingbase.moveStrafing * 0.5F;
                forward = entitylivingbase.moveForward;

                if (this.canPassengerSteer()) {
                    this.setAIMoveSpeed((float) this.getEntityAttribute(SharedMonsterAttributes.MOVEMENT_SPEED).getAttributeValue());
                    super.travel(strafe, vertical, forward);
                } else if (entitylivingbase instanceof EntityPlayer) {
                    this.motionX = 0.0D;
                    this.motionY = 0.0D;
                    this.motionZ = 0.0D;

                }

                this.prevLimbSwingAmount = this.limbSwingAmount;
                double d1 = this.posX - this.prevPosX;
                double d0 = this.posZ - this.prevPosZ;
                float f1 = MathHelper.sqrt(d1 * d1 + d0 * d0) * 4.0F;

                if (f1 > 1.0F) {
                    f1 = 1.0F;
                }

                this.limbSwingAmount += (f1 - this.limbSwingAmount) * 0.4F;
                this.limbSwing += this.limbSwingAmount;
            } else {
                this.stepHeight = 0.5F;
                this.jumpMovementFactor = 0.02F;
                super.travel(strafe, vertical, forward);