//Use mouse to draw some obstacles
private void DrawObstacles()
{
if (pathfindingManager.visualMode != PathfindingManager.VisualMode.Gizmo)
{
float spacing = pathfindingManager.gridScale * pathfindingManager.gridSpacing;
Vector3 mousePosition = GetMousePositionOnXZPlane();
mousePosition.x = Mathf.Round(mousePosition.x / spacing) * spacing;
mousePosition.y = Mathf.Round(mousePosition.y / spacing) * spacing;
Matrix4x4 trs = Matrix4x4.TRS(mousePosition, Quaternion.identity, new Vector3(spacing, spacing, spacing));
Graphics.DrawMesh(pathfindingManager.obstacleMesh, trs, cursorMaterial, 0);
trs.m03 = pathfindingManager.start.x * spacing;
trs.m13 = pathfindingManager.start.y * spacing;
Graphics.DrawMesh(pathfindingManager.obstacleMesh, trs, startPointMaterial, 0);
trs.m03 = pathfindingManager.end.x * spacing;
trs.m13 = pathfindingManager.end.y * spacing;
Graphics.DrawMesh(pathfindingManager.obstacleMesh, trs, endPointMaterial, 0);
if (Input.GetMouseButton(0)) //LMB draw
{
if (mousePosition == lastMousePosition)
{
return;
}
lastMousePosition = mousePosition;
mousePosition /= spacing;
pathfindingManager.SetObstacle(new int2((int)mousePosition.x, (int)mousePosition.y));
pathfindingManager.UpdateMatrices();
}
if (Input.GetMouseButton(1)) //RMB erase
{
if (mousePosition == lastMousePosition)
{
return;
}
lastMousePosition = mousePosition;
mousePosition /= spacing;
pathfindingManager.SetNodeWalkable(new int2((int)mousePosition.x, (int)mousePosition.y));
pathfindingManager.UpdateMatrices();
}
//Set start&end nodes for custom path.
if (Input.GetMouseButtonDown(2))
{
lastMousePosition = mousePosition;
mousePosition /= spacing;
pathfindingManager.SetNodeWalkable(new int2((int)mousePosition.x, (int)mousePosition.y));
if (Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift))
{
pathfindingManager.start = new Vector2Int((int)mousePosition.x, (int)mousePosition.y);
}
else
{
pathfindingManager.end = new Vector2Int((int)mousePosition.x, (int)mousePosition.y);
}
pathfindingManager.UpdateMatrices();
}
//Use start&end node to create custom path.
if (Input.GetKeyDown(KeyCode.KeypadEnter) || Input.GetKeyDown(KeyCode.Return))
{
pathfindingManager.AddPathManually();
}
//Clear pathfinding and obstacles map.
if (Input.GetKeyDown(KeyCode.Delete))
{
if (Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift))
{
pathfindingManager.ClearObstaclesMap();
pathfindingManager.ClearPathfinders();
}
else
{
pathfindingManager.ClearPathfinders();
}
}
//Generate obstacles with perlin noise.
if (Input.GetKeyDown(KeyCode.F2))
{
pathfindingManager.GenerateObstaclesWithPerlinNoise();
}
//Save
if (Input.GetKeyDown(KeyCode.F5))
{
pathfindingManager.SaveToFile();
} //Load
else if (Input.GetKeyDown(KeyCode.F9))
{
pathfindingManager.LoadFromFile();
}
}
}