internal void Initialize()
{
_meshModule.MeshRenderer.sortingOrder = _sortingOrder;
_meshModule.MeshRenderer.sortingLayerID = _sortingLayerID;
_fullWaterVisibleArea = new WaterRenderingVisibleArea(_mainModule);
_surfaceVisibleArea = new WaterRenderingVisibleArea(_mainModule);
_surfaceBelowSubmergeLevelVisibleArea = new WaterRenderingVisibleArea(_mainModule);
_renderingCameraFrustum = new WaterRenderingCameraFrustum(_mainModule);
_clipeePoints = new SimpleFixedSizedList <Vector2>(8);
}
internal void UpdateArea(SimpleFixedSizedList <Vector2> points, WaterRenderingCameraFrustum cameraFrustrum, bool isFullyContainedInWaterBox, float zFar, bool isReflectionEnabled, float reflectionAxis, float viewingFrustrumHeightScalingFactor = 1f)
{
_isValid = true;
if (isFullyContainedInWaterBox)
{
MatchVisibleAreaToCameraFrustum(cameraFrustrum, zFar, isReflectionEnabled, reflectionAxis, viewingFrustrumHeightScalingFactor);
return;
}
_isValid = points.Count > 0;
if (!_isValid)
{
return;
}
// Compute the AABB of provided points
Vector2 boundingBoxMin = points[0];
Vector2 boundingBoxMax = points[0];
for (int i = 1, imax = points.Count; i < imax; i++)
{
Vector2 point = points[i];
if (point.x < boundingBoxMin.x)
{
boundingBoxMin.x = point.x;
}
if (point.x > boundingBoxMax.x)
{
boundingBoxMax.x = point.x;
}
if (point.y < boundingBoxMin.y)
{
boundingBoxMin.y = point.y;
}
if (point.y > boundingBoxMax.y)
{
boundingBoxMax.y = point.y;
}
}
float boundingBoxArea = (boundingBoxMax.x - boundingBoxMin.x) * (boundingBoxMax.y - boundingBoxMin.y);
_isValid = boundingBoxArea > 0f;
if (!_isValid)
{
return;
}
if (boundingBoxArea > cameraFrustrum.WaterLocalSpace.Area)
{
MatchVisibleAreaToCameraFrustum(cameraFrustrum, zFar, isReflectionEnabled, reflectionAxis, viewingFrustrumHeightScalingFactor);
return;
}
Vector2 boundsCenter = (boundingBoxMin + boundingBoxMax) * 0.5f;
_position = _mainModule.TransformLocalToWorld(boundsCenter);
_rotation = Quaternion.Euler(0f, 0f, _mainModule.ZRotation);
if (isReflectionEnabled)
{
_positionReflection = _mainModule.TransformLocalToWorld(new Vector3(boundsCenter.x, 2f * reflectionAxis - boundsCenter.y));
_rotationReflection = _rotation;
}
if (_mainModule.ZRotation != 0f)
{
Vector2 topLeft = _mainModule.TransformLocalToWorld(new Vector2(boundingBoxMin.x, boundingBoxMax.y));
Vector2 bottomLeft = _mainModule.TransformLocalToWorld(boundingBoxMin);
Vector2 topRight = _mainModule.TransformLocalToWorld(boundingBoxMax);
_width = Vector2.Distance(topLeft, topRight);
_height = Vector2.Distance(bottomLeft, topLeft);
}
else
{
boundingBoxMin = _mainModule.TransformLocalToWorld(boundingBoxMin);
boundingBoxMax = _mainModule.TransformLocalToWorld(boundingBoxMax);
_width = boundingBoxMax.x - boundingBoxMin.x;
_height = boundingBoxMax.y - boundingBoxMin.y;
}
float halfWidth = _width * 0.5f;
float halfHeight = _height * 0.5f;
_projectionMatrix = Matrix4x4.Ortho(-halfWidth, halfWidth, -halfHeight, halfHeight * viewingFrustrumHeightScalingFactor, 0f, zFar);
}