void Start()
{
walls = new List <Wall>(FindObjectsOfType <Wall>());
player = FindObjectOfType <Player>();
turret = FindObjectOfType <Turret>();
visibilityPolygonCalculator = new VisibilityPolygonCSharp <Vector2>(new Vector2Adapter());
gameOverText = FindObjectOfType <Text>();
gameOverText.enabled = false;
}
void Update()
{
// Render Player Field of View
var polygons = walls.Select(wall => wall.points).ToArray();
var segments = VisibilityPolygonCSharp <Vector2> .ConvertToSegments(polygons);
// `player.transform.right` is the 'front' direction
// Cheesy hack to restrict player's field of view
segments.Add(new Segment <Vector2>(
player.transform.position - player.transform.right * 0.001F,
player.transform.position + player.transform.right + player.transform.up
));
segments.Add(new Segment <Vector2>(
player.transform.position - player.transform.right * 0.001F,
player.transform.position + player.transform.right - player.transform.up
));
segments = visibilityPolygonCalculator.BreakIntersections(segments);
var visibility = visibilityPolygonCalculator.Compute(player.transform.position, segments);
// Triangulate to render. Too low level for my taste, honestly.
Triangulator tr = new Triangulator(visibility.ToArray());
int [] triangles = tr.Triangulate();
player.mesh.Clear();
player.mesh.vertices = visibility.Select(v => (Vector3)v).ToArray();
player.mesh.triangles = triangles;
player.mesh.RecalculateNormals();
if (turret.enabled)
{
// Render Turret Field of View
polygons = walls.Select(wall => wall.points).ToArray();
segments = VisibilityPolygonCSharp <Vector2> .ConvertToSegments(polygons);
segments = visibilityPolygonCalculator.BreakIntersections(segments);
var turretVisibility = visibilityPolygonCalculator.Compute(turret.transform.position, segments);
tr = new Triangulator(turretVisibility.ToArray());
triangles = tr.Triangulate();
turret.mesh.Clear();
turret.mesh.vertices = turretVisibility.Select(v => (Vector3)v).ToArray();
turret.mesh.triangles = triangles;
turret.mesh.RecalculateNormals();
}
}
