Overview

Here’s a summary of how the MMV architecture works and what you can do.

The Main System

The main system consists of vehicle physics and the entire control system, such as acceleration, steering, braking and gun turret movement. All other systems are just add-ons to this main system and are not mandatory, allowing them to be replaced by one customized to the developer’s taste. Here’s a summary of how the MMV architecture works and what you can do.

The vehicle system is made up of modules that communicate, each module is responsible for an essential part of the vehicle. You can access some vehicle API functions and give commands, for example, tell the vehicle where to go or tell the gun turret module where to aim, (this will be explained in the next modules of this documentation).

How the tracked vehicle behaves

The MMV has a custom wheel physics system, we managed to make the wheel configuration very simple and it is still very stable for the purpose of Asset. The vehicle’s system will already do most of the hard work for you and so you just need to take care of passing the control commands.

Movimentation

In the case of tracked vehicle, all your vehicle movement control is based on the acceleration of the wheels, whether they are going backwards or forwards and the speed at which they are moving. An MBT vehicle from the MMV is no different, we use this same principle, to better understand, below is an example of how the acceleration influences the vehicle’s direction.

How do Tracks Work

The tracks use fake simulation to look like they actually move. The treadmill model is linked to a bone armature, one bone per wheel and via script this bone will follow the wheel’s position generating the effect that movement.

This solves the suspension problem, but there is another point that needs attention, which is the issue of vehicle acceleration, the treadmill needs to respond to the speed at which the vehicle moves and for that there is an integrated system in the wheel control script of the MBT vehicle that changes the texture offset of the mat material giving the feeling of movement.

Weapon System

Only the turret system is integrated into the vehicle, fire control is done separately by other scripts. The main job of the turret is just aiming at some position in the world respecting the vehicle’s angle limits.