// Show spline points
private Vector3 ShowPoint(int index)
{
Vector3 point = handleTransform.TransformPoint(terrain.GetControlPoint(index));
float size = HandleUtility.GetHandleSize(point);
Handles.color = modeColors[(int)terrain.GetControlPointMode(index)];
// Activate the bezier curve handle if we click on it
if (Handles.Button(point, handleRotation, size * handleSize, size * pickSize, Handles.CircleCap))
{
selectedIndex = index;
Repaint();
}
// If there's a handle currently selected...
if (selectedIndex == index)
{
// Listen for inspector value dhanges
EditorGUI.BeginChangeCheck();
point = Handles.DoPositionHandle(point, handleRotation);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(terrain, "Move Point");
terrain.SetControlPoint(index, handleTransform.InverseTransformPoint(point));
terrain.BuildMesh();
terrain.GenerateCollider();
EditorUtility.SetDirty(terrain);
}
}
return(point);
}
public override void OnInspectorGUI()
{
DrawDefaultInspector();
terrain = target as SplineTerrainGenerator;
// If we've selected a spline control point, show its transform in the inspector
if (selectedIndex >= 0 && selectedIndex < terrain.ControlPointCount)
{
DrawSelectedPointInspector();
}
// Button to generate new terrain
if (GUILayout.Button("Generate New Terrain"))
{
Undo.RecordObject(terrain, "Generate New Terrain");
terrain.BuildSpline();
EditorUtility.SetDirty(terrain);
}
// Button to generate new terrain
if (GUILayout.Button("Add Curve"))
{
Undo.RecordObject(terrain, "Add Curve");
terrain.AddCurve(4);
terrain.terrainBlocks += 1;
terrain.BuildMesh();
EditorUtility.SetDirty(terrain);
}
// Button to rebuild the mesh
if (GUILayout.Button("Build Mesh & Collider"))
{
Undo.RecordObject(terrain, "Build Mesh & Collider");
terrain.BuildMesh();
terrain.GenerateCollider();
EditorUtility.SetDirty(terrain);
}
}