Track Marker System

This track marker system allows you to create racing tracks in the Unity editor by clicking to add, edit, and delete waypoints.

How to Use

Creating a Track

1. Create a TrackMarker ScriptableObject:
2. Right-click in Project window
3. Select Create → Race Timing → Track Markers

4. Name it (e.g., "MyTrackMarkers")

5. Add TrackMarkerManagerBehaviour to a GameObject:

6. Create an empty GameObject in your scene
7. Add the TrackMarkerManagerBehaviour component

8. Assign your Track Markers asset to the component

9. Edit the Track in Scene View:

10. Select the GameObject with TrackMarkerManagerBehaviour
11. In the Scene view:
    • Shift + Click on terrain/ground to add a new waypoint
    • Click on an existing waypoint to select it (you can then move it with the position handle)
    • Alt + Click near a waypoint to delete it
    • Delete Key to remove the selected waypoint

Keyboard Controls

• Shift + Click: Add a new track marker at the clicked position
• Alt + Click: Remove the nearest track marker
• Click: Select a track marker for editing
• Delete: Remove the currently selected track marker

Visual Feedback

• Blue spheres show waypoint positions
• Light blue lines connect waypoints in sequence
• A line connects the last waypoint back to the first (forming a loop)
• Labels show "Marker 1", "Marker 2", etc.

API Reference

TrackMarkerManagerBehaviour Methods

// Get the index of the nearest waypoint to a position
int GetNearestNodeIndex(Vector3 point)

// Get the position of a waypoint by index
Vector3 NodeFromIndex(int index)

// Add a marker at the end
void AddMarker(Vector3 newPoint)

// Add a marker at a specific index
void AddMarker(int index, Vector3 newPoint)

// Remove a marker by index
void RemoveMarker(int index)

// Move an existing marker
void MoveMarker(int index, Vector3 newTargetPosition)

// Get calculated track properties
List<Vector3> trackMarkers { get; }
List<float> cumulativeDistances { get; }
float totalTrackLength { get; }