protected override void InvertDraw()
{
List <Vector3> invertAngledMeshVertices = new List <Vector3>();
List <int> invertAngledTriangles = new List <int>();
Vector3 previousNormal = Vector3.zero;
Vector3 normalAtDegree0 = Vector3.zero;
GameObject previousHitGo = null;
GameObject previousPreviousHitGo = null;
GameObject hitGoAtDegree0 = null;
Vector3 firstFarPoint = Vector3.zero;
Vector3 lastFarPoint = Vector3.zero;
Vector3 previousCloseTempPoint = Vector3.zero;
Vector3 previousDirection = Vector3.zero;
int firstFarPointIndex = -1;
int lastFarPointIndex = -1;
int farPointIndex = -1;
int previousFarPointIndex = -1;
int closePointIndex = -1;
int previousClosePointIndex = -1;
int closePointAtDegree0Index = -1;
int colliderClosePointCount = 0;
LOSRaycastHit hit;
LOSRaycastHit previousHit = new LOSRaycastHit();
invertAngledMeshVertices.Add(Vector3.zero); // Add the position of the light
// Add the four viewbox corners.
foreach (Vector3 corner in LOSManager.instance.viewboxCorners)
{
invertAngledMeshVertices.Add(corner - position);
}
for (float degree = _startAngle; degree < _endAngle; degree += degreeStep)
{
Vector3 direction;
direction = SMath.DegreeToUnitVector(degree);
if (degree == _startAngle)
{
firstFarPoint = _losCamera.GetCollisionPointWithViewBox(position, direction);
invertAngledMeshVertices.Add(firstFarPoint - position);
firstFarPointIndex = invertAngledMeshVertices.Count - 1;
}
else if (degree + degreeStep >= _endAngle) // degree == _endAngle - degreeStep
{
lastFarPoint = _losCamera.GetCollisionPointWithViewBox(position, direction);
invertAngledMeshVertices.Add(lastFarPoint - position);
lastFarPointIndex = invertAngledMeshVertices.Count - 1;
}
if (LOSRaycast(direction, out hit, _raycastDistance) && CheckRaycastHit(hit, 0)) // Hit a collider.
{
Vector3 hitPoint = hit.point;
GameObject hitGo = hit.hitGo;
Vector3 hitNormal = hit.normal;
if (degree == _startAngle)
{
farPointIndex = firstFarPointIndex;
invertAngledMeshVertices.Add(hitPoint - position);
previousClosePointIndex = closePointIndex;
closePointIndex = invertAngledMeshVertices.Count - 1;
colliderClosePointCount++;
if (degree == 0)
{
closePointAtDegree0Index = closePointIndex;
hitGoAtDegree0 = hitGo;
normalAtDegree0 = hitNormal;
}
}
else if (degree + degreeStep >= _endAngle)
{
previousFarPointIndex = farPointIndex;
farPointIndex = lastFarPointIndex;
if (previousHitGo != hitGo && null != previousHitGo)
{
colliderClosePointCount = 1;
//
if (_startAngle == 0 && _endAngle == 360)
{
invertAngledMeshVertices.Add(previousCloseTempPoint - position);
previousClosePointIndex = closePointIndex;
closePointIndex = invertAngledMeshVertices.Count - 1;
if (closePointAtDegree0Index != -1)
{
AddNewTriangle(invertAngledTriangles, closePointIndex, closePointAtDegree0Index, firstFarPointIndex);
}
AddNewTriangle(invertAngledTriangles, previousClosePointIndex, closePointIndex, firstFarPointIndex);
AddNewTrianglesBetweenPoints4Corners(invertAngledTriangles, invertAngledMeshVertices, previousFarPointIndex, firstFarPointIndex, previousClosePointIndex);
}
}
else if (previousNormal != hitNormal)
{
invertAngledMeshVertices.Add(hitPoint - position);
previousClosePointIndex = closePointIndex;
closePointIndex = invertAngledMeshVertices.Count - 1;
// AddNewTriangle(invertAngledTriangles, previousClosePointIndex, closePointIndex, previousFarPointIndex);
previousPreviousHitGo = previousHitGo;
// Vector3 previouseClosePointTolerated = GetToleratedHitPointColliderOrNormalChange(previousDirection, previousHit, direction, hit);
// invertAngledMeshVertices.Add(previouseClosePointTolerated - _trans.position);
// previousClosePointIndex = closePointIndex;
// closePointIndex = invertAngledMeshVertices.Count - 1;
// AddNewTriangle(invertAngledTriangles, previousClosePointIndex, closePointIndex, previousFarPointIndex);
}
else
{
invertAngledMeshVertices.Add(hitPoint - position);
previousClosePointIndex = closePointIndex;
closePointIndex = invertAngledMeshVertices.Count - 1;
colliderClosePointCount++;
}
}
else
{
if (null == previousHitGo)
{
Vector3 farPoint = _losCamera.GetCollisionPointWithViewBox(position, previousDirection);
invertAngledMeshVertices.Add(farPoint - position);
previousFarPointIndex = farPointIndex;
farPointIndex = invertAngledMeshVertices.Count - 1;
hitPoint = GetToleratedHitPointColliderInOut(previousDirection, hit);
invertAngledMeshVertices.Add(hitPoint - position);
previousClosePointIndex = closePointIndex;
closePointIndex = invertAngledMeshVertices.Count - 1;
colliderClosePointCount++;
}
else if (previousHitGo != hitGo)
{
colliderClosePointCount = 1;
Vector3 farPoint = _losCamera.GetCollisionPointWithViewBox(position, direction);
invertAngledMeshVertices.Add(farPoint - position);
previousFarPointIndex = farPointIndex;
farPointIndex = invertAngledMeshVertices.Count - 1;
invertAngledMeshVertices.Add(previousCloseTempPoint - position);
previousClosePointIndex = closePointIndex;
closePointIndex = invertAngledMeshVertices.Count - 1;
AddNewTriangle(invertAngledTriangles, previousClosePointIndex, closePointIndex, previousFarPointIndex);
Vector3 previouseClosePointTolerated = GetToleratedHitPointColliderOrNormalChange(previousDirection, previousHit, direction, hit);
invertAngledMeshVertices.Add(previouseClosePointTolerated - position);
int previouseClosePointToleratedIndex = invertAngledMeshVertices.Count - 1;
invertAngledMeshVertices.Add(hitPoint - position);
previousClosePointIndex = closePointIndex;
closePointIndex = invertAngledMeshVertices.Count - 1;
AddNewTriangle(invertAngledTriangles, previousClosePointIndex, previouseClosePointToleratedIndex, closePointIndex);
AddNewTriangle(invertAngledTriangles, previousClosePointIndex, closePointIndex, farPointIndex);
Vector3 previousClosePoint = invertAngledMeshVertices[previousClosePointIndex] + position;
Vector3 previousFarPoint = invertAngledMeshVertices[previousFarPointIndex] + position;
Vector3 previousClosePointToFar = farPoint - previousClosePoint;
Vector3 previousCloseToPreviousFar = previousFarPoint - previousClosePoint;
if (SMath.GetDegreeBetweenIndexVector(previousCloseToPreviousFar.normalized, previousClosePointToFar.normalized) < 0) // left
{
AddNewTriangle(invertAngledTriangles, previousFarPointIndex, previousClosePointIndex, farPointIndex);
AddNewTrianglesBetweenPoints2Corners(invertAngledTriangles, invertAngledMeshVertices, previousFarPointIndex, farPointIndex);
}
else // right
{
AddNewTrianglesBetweenPoints2Corners(invertAngledTriangles, invertAngledMeshVertices, previousFarPointIndex, previousClosePointIndex);
}
}
else
{
if (previousNormal != hitNormal)
{
invertAngledMeshVertices.Add(previousCloseTempPoint - position);
previousClosePointIndex = closePointIndex;
closePointIndex = invertAngledMeshVertices.Count - 1;
AddNewTriangle(invertAngledTriangles, closePointIndex, farPointIndex, previousClosePointIndex);
int closePointIndexBeforeNormalChange = closePointIndex;
Vector3 toleratedHitpoint = GetToleratedHitPointColliderOrNormalChange(previousDirection, previousHit, direction, hit);
invertAngledMeshVertices.Add(toleratedHitpoint - position);
previousClosePointIndex = closePointIndex;
closePointIndex = invertAngledMeshVertices.Count - 1;
invertAngledMeshVertices.Add(hitPoint - position);
previousClosePointIndex = closePointIndex;
closePointIndex = invertAngledMeshVertices.Count - 1;
AddNewTriangle(invertAngledTriangles, closePointIndexBeforeNormalChange, closePointIndex, farPointIndex);
AddNewTriangle(invertAngledTriangles, closePointIndexBeforeNormalChange, previousClosePointIndex, closePointIndex);
}
colliderClosePointCount++;
}
}
previousHitGo = hitGo;
previousCloseTempPoint = hitPoint;
previousNormal = hitNormal;
}
else
{
if (null != previousHitGo)
{
colliderClosePointCount = 0;
Vector3 previousCloseTempPointTolerated = GetToleratedHitPointColliderInOut(direction, previousHit);
invertAngledMeshVertices.Add(previousCloseTempPointTolerated - position);
previousClosePointIndex = closePointIndex;
closePointIndex = invertAngledMeshVertices.Count - 1;
AddNewTriangle(invertAngledTriangles, closePointIndex, farPointIndex, previousClosePointIndex);
Vector3 farPoint = _losCamera.GetCollisionPointWithViewBox(position, direction);
invertAngledMeshVertices.Add(farPoint - position);
previousFarPointIndex = farPointIndex;
farPointIndex = invertAngledMeshVertices.Count - 1;
Vector3 previousFarPoint = invertAngledMeshVertices[previousFarPointIndex] + position;
Vector3 closePoint = invertAngledMeshVertices[closePointIndex] + position;
List <Vector3> corners = _losCamera.GetViewboxCornersBetweenPoints(previousFarPoint, closePoint, position, false);
switch (corners.Count)
{
case 0:
AddNewTriangle(invertAngledTriangles, closePointIndex, farPointIndex, previousFarPointIndex);
break;
case 1:
int cornerIndex0 = GetCorrectCornerIndex(invertAngledMeshVertices, corners[0], 1);
AddNewTriangle(invertAngledTriangles, closePointIndex, cornerIndex0, previousFarPointIndex);
AddNewTriangle(invertAngledTriangles, closePointIndex, farPointIndex, cornerIndex0);
break;
case 2:
cornerIndex0 = GetCorrectCornerIndex(invertAngledMeshVertices, corners[0], 1);
int cornerIndex1 = GetCorrectCornerIndex(invertAngledMeshVertices, corners[1], 1);
AddNewTriangle(invertAngledTriangles, closePointIndex, cornerIndex0, previousFarPointIndex);
AddNewTriangle(invertAngledTriangles, closePointIndex, cornerIndex1, cornerIndex0);
AddNewTriangle(invertAngledTriangles, closePointIndex, farPointIndex, cornerIndex1);
break;
}
}
previousHitGo = null;
}
previousDirection = direction;
previousHit = hit;
}
if (_startAngle == 0 && _endAngle == 360)
{
if (previousHitGo != null)
{
if (closePointAtDegree0Index == -1)
{
Vector3 degree0FarPoint = _losCamera.GetCollisionPointWithViewBox(position, new Vector3(1, 0, 0));
invertAngledMeshVertices.Add(degree0FarPoint - position);
int degree0FarPointIndex = invertAngledMeshVertices.Count - 1;
AddNewTrianglesBetweenPoints4Corners(invertAngledTriangles, invertAngledMeshVertices, previousFarPointIndex, degree0FarPointIndex, closePointIndex);
AddNewTriangle(invertAngledTriangles, previousClosePointIndex, closePointIndex, previousFarPointIndex);
}
else
{
if (colliderClosePointCount > 1)
{
// AddNewTriangle(invertAngledTriangles, previousClosePointIndex, closePointIndex, previousFarPointIndex);
AddNewTriangle(invertAngledTriangles, closePointIndex, closePointAtDegree0Index, firstFarPointIndex);
AddNewTriangle(invertAngledTriangles, previousClosePointIndex, closePointIndex, previousFarPointIndex);
AddNewTrianglesBetweenPoints4Corners(invertAngledTriangles, invertAngledMeshVertices, previousFarPointIndex, firstFarPointIndex, closePointIndex);
}
else
{
if (closePointAtDegree0Index != -1 &&
hitGoAtDegree0 == previousHitGo &&
previousPreviousHitGo == previousHitGo &&
normalAtDegree0 == previousNormal)
{
AddNewTriangle(invertAngledTriangles, previousClosePointIndex, closePointIndex, previousFarPointIndex);
AddNewTriangle(invertAngledTriangles, closePointIndex, closePointAtDegree0Index, firstFarPointIndex);
AddNewTriangle(invertAngledTriangles, closePointIndex, firstFarPointIndex, previousFarPointIndex);
}
}
}
}
}
else // Add triangles between outside of view.
{
AddNewTrianglesBetweenPoints4Corners(invertAngledTriangles, invertAngledMeshVertices, lastFarPointIndex, firstFarPointIndex, 0);
if (previousHitGo != null)
{
if (colliderClosePointCount >= 2)
{
AddNewTrianglesBetweenPoints4Corners(invertAngledTriangles, invertAngledMeshVertices, previousFarPointIndex, lastFarPointIndex, closePointIndex);
AddNewTriangle(invertAngledTriangles, previousClosePointIndex, closePointIndex, previousFarPointIndex);
}
else if (previousFarPointIndex >= 0)
{
AddNewTrianglesBetweenPoints4Corners(invertAngledTriangles, invertAngledMeshVertices, previousFarPointIndex, lastFarPointIndex, previousClosePointIndex);
AddNewTriangle(invertAngledTriangles, closePointIndex, lastFarPointIndex, previousClosePointIndex);
}
}
}
DeployMesh(invertAngledMeshVertices, invertAngledTriangles);
}