Assets

Brimstone Engine

This project is a physics based series of controllers, sensors and test environment generator. These scripts let anyone quickly and easily add PID controls to their games. So far, I have made a few basic controllers, a range sensor and environment generator that are useful for 2D top down navigation but I plan to add other controllers for other types of games and eventually expand the project with other concepts such as path planning. Currently I am working on this project solo so I will provide updates as soon as I can.

​Features

The controllers react to any physical properties applied to them, then compensate with user adjustable gains to achieve the desired result. Anyways, I think a few videos can help me explain things better. Please let me know your thoughts and questions on my project.​

 

Behavior Manager Implementation Of All Controllers

Position Controller: The Behavior Manager switches to this controller when the range sensor script does not detect an obstacle (clear path to specified goal position).

In this situation only a single green line, which points to the goal position, is visible.

Avoidance Controller: This controller is only used in hazardous situations ( rover is too close to a obstacle).

Only a single magenta line is visible.

​Position-Avoidance Controller: A combination of both the Position and Avoidance controllers. The Position-Avoidance controller is used most often. Its purpose is to head in the direction of the specified position while also avoiding obstacles along the way.
 
In this case, three lines are visible, the position (green), avoidance (magenta) and the combination of both (cyan) .
 
Wall Follow Controller: The Behavior Manager switches to this control in cases where the Position-Avoidance controller would fail. The controller follows a wall until it reaches a new location that would not cause the Position-Avoidance controller to fail.
 
No lines are visible, only range sensor visualizations are displayed.

Position Controller

Allows user to set custom X and Y position coordinates at any time, and the controller will move the game object attached to the script to that specific location.The controller is completely adjustable, allowing multiple variations of routes and speedsUser can toggle visual debugging indicators to show objects current heading and the heading and location to the user specified position.

 Position Controller  Follower

In the video, the red rover is player controlled.

The other black rovers are NPCs controlled by the position controller.

A variation of the position controller instead of setting coordinates, users can drag and drop a game object and the controller will move the game object attached to the script to the specific location of the other game object placed by the user.

 Avoidance Controller

Using distances detected by the range sensor script, this controller will change the current heading of its game object to a new clear heading.
The controller is completely adjustable, allowing users to set custom reaction times and magnitudes.
 
I think, that is as much as I can describe in this update. Thanks for checking out my project! I will add more videos and improve the current descriptions with more details soon. ​

 Range Sensor

Attach a group of range sensors to any game object.

These sensors report the distances between the script corresponding game object and any other game object that is within the sensor's detection area.

The sensor's detection area can be set to any size, and the amount of sensors per detection area is adjustable as well.

Toggle-able visualization tools allow users to see the length and direction of each sensor's detection area in yellow. Sensors will decrease in length and change to a red color, when an object its detected.

Environment Generator

Quickly create a maze like area.
 
The generator is completely adjustable: set your own tile prefabs, set the size of each area, and customize the maze complexity anywhere form an open area to your own personal labyrinth.
 
Each generated environment can be saved and loaded and any time.

Angle Control

Rotate an object to the angle of your choice by setting custom angles, and controlling torque forces.
 
Once the object has reached it's specified angle, the controller will maintain that specified angle.
 
If an other object interferes with the controlled object, the controller will adjust its objects rotation returning it to the previously set angle. (The rover pushing the beam out of its set angle)

Wall Follow Control

At the start of the video, (0:13 - 0:23) the controller is set to follow walls to the left of the rover. The controller uses distance data from the range sensor script to determine if there is a wall to the left of the rover.The yellow lines on the rover turn red to display detection. Finally with a little bit of math the control will estimate the location of the wall.The estimation is displayed by a green line. (It is somewhat difficult to see in the video) The green line is located between the two red lines representing sensor detection and the green line is also parallel to the wall.

At (0:23 - 0:29) the wall follow direction is changed to follow walls to the right of the rover. This direction remains set to the right for the rest of the clip.

At (0:29 - 0:33) the distance the rover must maintain from the wall is increased.Then at (0:33 - 0:38) the distance is lowered (rover get really close to the wall) and the distance is raised again.I know the changes are quick and random, I was just trying to show the setting was adjustable.

​Finally, for the rest of the video, the settings stay constant and only the wall the rover must follow is changed.