private bool TestExtending(RoadModule aRoadModule)
{
Vector2 closestIntersection = Vector2.one * float.MinValue;
float shortestDistance = float.MaxValue;
RoadModule intersectedRoad = null;
Vector2 start1 = new Vector2(aRoadModule.mPosition.x, aRoadModule.mPosition.z);
Vector2 end1 = new Vector2(
aRoadModule.mPosition.x + Mathf.Cos(aRoadModule.mDirection * Mathf.Deg2Rad) * aRoadModule.mLength * 1.5f,
aRoadModule.mPosition.z + Mathf.Sin(aRoadModule.mDirection * Mathf.Deg2Rad) * aRoadModule.mLength * 1.5f);
start1 += (end1 - start1).normalized * 0.001f;
Vector2 intersection = Vector2.zero;
for (int i = 0; i < mModules.Count; ++i)
{
Vector2 start2 = new Vector2(mModules[i].mPosition.x, mModules[i].mPosition.z);
Vector2 end2 = new Vector2(mModules[i].End.x, mModules[i].End.z);
if (NeroUtilities.LineLineIntersection(start1, end1, start2, end2, out intersection) == true)
{
float distance = Vector2.Distance(start1, intersection);
if (distance < shortestDistance)
{
closestIntersection = intersection;
shortestDistance = distance;
intersectedRoad = mModules[i];
}
}
}
if (intersectedRoad != null)
{
aRoadModule.mLength = Vector3.Distance(aRoadModule.mPosition, new Vector3(closestIntersection.x, 0.0f, closestIntersection.y));
mCrossings.Add(aRoadModule.End);
Debug.Log("TestExtending -> Creating crossing.");
if (aRoadModule.mLength < 0.000001f)
{
Debug.LogWarning("TestExtending -> Road segment length is 0.");
}
float originalLength = intersectedRoad.mLength;
float newLength = Vector3.Distance(intersectedRoad.mPosition, new Vector3(closestIntersection.x, 0.0f, closestIntersection.y));
intersectedRoad.mLength = newLength;
RoadModule newModule = new RoadModule(0, intersectedRoad.End, originalLength - newLength, intersectedRoad.mDirection);
mModules.Add(newModule);
return(true);
}
return(false);
}
private void InitLists()
{
mQueue.Clear();
mModules.Clear();
mCrossings.Clear();
mNodes.Clear();
RoadModule initialRoadModule = new RoadModule();
initialRoadModule.mPriority = 0;
initialRoadModule.mPosition = Vector3.zero;
initialRoadModule.mLength = 10.0f;
initialRoadModule.mDirection = 0.0f;
mQueue.Add(initialRoadModule);
mQueue = mQueue.OrderBy(i => i.mPriority).ToList();
//StopAllCoroutines();
}
private void GlobalGoals(RoadModule aRoadModule)
{
mQueue.Add(new RoadModule(aRoadModule.mPriority + 1, aRoadModule.End, 10.0f, aRoadModule.mDirection + Random.Range(-10.0f, 10.0f)));
bool crossingCreated = false;
int splitChance = 15;
if (Random.Range(0, 100) < splitChance)
{
mQueue.Add(new RoadModule(aRoadModule.mPriority + 1, aRoadModule.End, 10.0f, aRoadModule.mDirection + 90.0f + Random.Range(-10.0f, 10.0f)));
crossingCreated = true;
}
if (Random.Range(0, 100) < splitChance)
{
mQueue.Add(new RoadModule(aRoadModule.mPriority + 1, aRoadModule.End, 10.0f, aRoadModule.mDirection - 90.0f + Random.Range(-10.0f, 10.0f)));
crossingCreated = true;
}
if (crossingCreated == true)
{
mCrossings.Add(aRoadModule.End);
Debug.Log("GlobalGoals -> Creating crossing.");
}
}
private IEnumerator Coroutine_Generate()
{
InitLists();
while (mQueue.Count > 0)
{
Debug.Log("Generating");
mQueryRoad = mQueue[0];
mQueue.RemoveAt(0);
eRoadQueryResult result = LocalConstraints(mQueryRoad);
if (result != eRoadQueryResult.FAIL)
{
mModules.Add(mQueryRoad);
if (result == eRoadQueryResult.SUCCESS)
{
GlobalGoals(mQueryRoad);
}
}
yield return(new WaitForEndOfFrame());
}
for (int i = 0; i < mModules.Count; ++i)
{
if (mModules[i].mLength <= 0.000001f)
{
Debug.Log("Road with no length!");
}
GetNode(mModules[i].mPosition).AddConnection(GetNode(mModules[i].End));
GetNode(mModules[i].End).AddConnection(GetNode(mModules[i].mPosition));
if (mModules[i].mBadRoad == true)
{
GetNode(mModules[i].mPosition).mBadNode = true;
GetNode(mModules[i].End).mBadNode = true;
}
yield return(new WaitForEndOfFrame());
}
GetComponent <ParcelGenerator>().GenerateParcels(mNodes.Values.ToList());
yield return(new WaitForEndOfFrame());
}
private bool TestCrossing(RoadModule aRoadModule)
{
Vector2 closestPoint = Vector3.one * float.MinValue;
float shortestDistance = float.MaxValue;
Vector2 start = new Vector2(aRoadModule.mPosition.x, aRoadModule.mPosition.z);
Vector2 end = new Vector2(aRoadModule.End.x, aRoadModule.End.z);
Vector2 intersection = Vector2.zero;
bool foundIntersection = false;
for (int i = 0; i < mCrossings.Count; ++i)
{
Vector2 crossing = new Vector2(mCrossings[i].x, mCrossings[i].z);
if (NeroUtilities.PointCircleIntersection(end, crossing, aRoadModule.mLength * 0.75f) == true)
{
float distance = Vector2.Distance(end, crossing);
if (distance < shortestDistance && bgriegebri(start, crossing) == true)
{
foundIntersection = true;
closestPoint = crossing;
shortestDistance = distance;
}
}
}
if (foundIntersection == true)
{
aRoadModule.mLength = Vector2.Distance(start, closestPoint);
Vector2 delta = closestPoint - start;
aRoadModule.mDirection = Mathf.Atan2(delta.y, delta.x) * Mathf.Rad2Deg;
Debug.Log("TestCrossing -> Snapping to crossing.");
if (aRoadModule.mLength < 0.000001f)
{
Debug.LogWarning("TestCrossing -> Road segment length is 0.");
}
return(true);
}
return(false);
}
private eRoadQueryResult LocalConstraints(RoadModule aRoadModule)
{
eRoadQueryResult result = eRoadQueryResult.SUCCESS;
bool valid = false;
int debugID = -1;
if (aRoadModule.End.x < -mWorldSize || aRoadModule.End.x > mWorldSize || aRoadModule.End.z < -mWorldSize || aRoadModule.End.z > mWorldSize)
{
return(eRoadQueryResult.FAIL);
}
if (TestIntersection(aRoadModule) == true)
{
result = eRoadQueryResult.SUCCESS_AND_STOP;
valid = true;
debugID = 1;
}
if (valid == false && TestCrossing(aRoadModule) == true)
{
result = eRoadQueryResult.SUCCESS_AND_STOP;
valid = true;
debugID = 2;
}
if (valid == false && TestExtending(aRoadModule) == true)
{
result = eRoadQueryResult.SUCCESS_AND_STOP;
valid = true;
debugID = 3;
}
Vector2 start1 = new Vector2(aRoadModule.mPosition.x, aRoadModule.mPosition.z);
Vector2 end1 = new Vector2(aRoadModule.End.x, aRoadModule.End.z);
for (int i = 0; i < mModules.Count; ++i)
{
Vector2 start2 = new Vector2(mModules[i].mPosition.x, mModules[i].mPosition.z);
Vector2 end2 = new Vector2(mModules[i].End.x, mModules[i].End.z);
if ((start1 == start2 && end1 == end2) || (start1 == end2 && start2 == end1))
{
valid = false;
aRoadModule.mBadRoad = true;
Debug.Log("OVERLAPPING ROAD");
}
else
{
ShortenLine(ref start1, ref end1, 0.1f);
ShortenLine(ref start2, ref end2, 0.1f);
Vector2 intersection = Vector2.zero;
if (NeroUtilities.LineLineIntersection(start1, end1, start2, end2, out intersection) == true)
{
valid = false;
aRoadModule.mBadRoad = true;
Debug.Log("BAD ROAD");
}
}
}
return(result);
}
