PathProgressTracker.cs Documentation

The PathProgressTracker script is designed to track the progress of an AI vehicle as it moves along a path defined by a spline. This is particularly useful in racing games or scenarios where vehicles need to follow a specific route.

1. Core Components

AIVehicleController aiVehicleController

• Description: This references the AI vehicle's controller, which is essential for getting vehicle velocity and managing interactions with the AI.
• Usage: The script needs access to the vehicle's speed to determine how quickly it progresses along the path. Without this, tracking won't work properly.

SplineContainer splineContainer

• Description: The spline container holds the spline that the vehicle will follow.
• Usage: Assign a spline to the AI vehicle. The spline represents the path (e.g., a race track or a route). The script uses this to calculate positions and movements.

2. Progress and Offsets

Offsets: offset_A, offset_AB, offset_BC

• Description: These offsets define how far ahead along the spline the key points (A, B, C, D) are placed. They help predict the vehicle's upcoming positions for smoother path-following.

• Effect on Behavior:

  • Larger offsets make the vehicle anticipate turns or changes sooner.
  • Smaller offsets make the vehicle react more immediately to the path ahead.

  Example: A higher offset_A value will make the AI consider a point further ahead in its path, resulting in smoother movement.

progressDistance

• Description: The distance the vehicle has traveled along the spline. This value is updated as the vehicle moves forward and is key for tracking the vehicle’s position.
• Effect: Tracks the exact progress of the vehicle in terms of distance along the spline.

3. Lap Management