private void Update()
{
var targetTransform = TargetOverride == null ? transform.parent : TargetOverride.transform;
if (targetTransform == null)
{
return;
}
if (_cachedTransform != targetTransform)
{
_cachedTransform = targetTransform;
_cachedSight = _cachedTransform.GetComponent <AISight>();
_cachedMotor = _cachedTransform.GetComponent <CharacterMotor>();
}
if (_cachedSight == null)
{
return;
}
var character = Characters.Get(_cachedSight.gameObject);
if (character.Motor.IsAlive && (DisplayWhenAway || character.IsAnyInSight(0)))
{
_alpha += Time.deltaTime * FadeSpeed;
}
else
{
_alpha -= Time.deltaTime * FadeSpeed;
}
if (_cachedMotor != null)
{
var target = _cachedMotor.AimTarget;
target.y = transform.position.y;
transform.LookAt(target);
}
_alpha = Mathf.Clamp01(_alpha);
_mesh.Clear();
var vertexCount = Detail * 3;
var indexCount = Detail * 3;
if (_positions == null || _positions.Length != vertexCount)
{
_positions = new Vector3[vertexCount];
}
if (_colors == null || _colors.Length != vertexCount)
{
_colors = new Color[vertexCount];
}
if (_uv == null || _uv.Length != vertexCount)
{
_uv = new Vector2[vertexCount];
}
var wasEdited = false;
if (_alpha >= 1f / 255f)
{
wasEdited = true;
var fov = _cachedSight.FieldOfView * _alpha;
var distance = _cachedSight.Distance;
for (int i = 0; i < Detail; i++)
{
float a0 = fov * ((float)i / (float)Detail - 0.5f) + 90;
float a1 = fov * ((float)(i + 1) / (float)Detail - 0.5f) + 90;
_positions[i * 3 + 0] = Vector3.zero;
_positions[i * 3 + 1] = new Vector3(Mathf.Cos(a1 * Mathf.Deg2Rad), 0, Mathf.Sin(a1 * Mathf.Deg2Rad)) * distance;
_positions[i * 3 + 2] = new Vector3(Mathf.Cos(a0 * Mathf.Deg2Rad), 0, Mathf.Sin(a0 * Mathf.Deg2Rad)) * distance;
}
for (int i = 0; i < _colors.Length; i++)
{
_colors[i] = new Color(1, 1, 1, _alpha);
}
for (int i = 0; i < _uv.Length; i++)
{
_uv[i] = new Vector2((_positions[i].x / distance) * 0.5f + 0.5f, (_positions[i].z / distance) * 0.5f + 0.5f);
}
if (_indices == null || _indices.Length != indexCount)
{
_indices = new int[indexCount];
for (int i = 0; i < _indices.Length; i++)
{
_indices[i] = i;
}
}
}
if (wasEdited || !_hasSetAtLeastOnce)
{
_hasSetAtLeastOnce = true;
_mesh.vertices = _positions;
_mesh.colors = _colors;
_mesh.uv = _uv;
_mesh.triangles = _indices;
}
}