public void Generate()
{
float step = CityConfig.WIDTH / RESOLUTION;
for (float i = CityConfig.X_START;
i < CityConfig.X_START + CityConfig.WIDTH;
i += step)
{
for (float j = CityConfig.Y_START;
j < CityConfig.Y_START + CityConfig.HEIGHT;
j += step)
{
Transform heatSquare = Instantiate(prefab);
heatSquare.localScale = new Vector3(0.1f * step, 1f, 0.1f * step);
heatSquare.localPosition = new Vector3(i + step * 0.5f, -0.1f, j + step * 0.5f);
float pop = Heatmap.Value(heatSquare.localPosition);
Color color = Color.Lerp(minColor, maxColor, pop);
var meshRenderer = heatSquare.GetComponent <MeshRenderer>();
meshRenderer.material.color = color;
}
}
}
public void CreateLot(List <Vector3> corners)
{
for (int i = 0; i < corners.Count; i++)
{
corners[i] -= Vector3.up * CityConfig.BUILDING_UNDEGROUND_DEPTH;
}
Lot lot = Instantiate(lotPrefab);
float height = Heatmap.Value(corners[0]);
height -= CityConfig.STREET_BRANCH_POPULATION_THRESHOLD;
if (height < 0)
{
height = 0;
}
height /= (1f - CityConfig.STREET_BRANCH_POPULATION_THRESHOLD);
height *= CityConfig.BUILDING_HEIGHT_MAX;
height += CityConfig.BUILDING_HEIGHT_VARIANCE * (UnityEngine.Random.value - .5f);
height += CityConfig.BUILDING_UNDEGROUND_DEPTH;
lot.Initialize(corners, height, sharedMaterial);
if (printDebug)
{
print("found");
}
}
public List <Road> Generate(Road prevSegment, RoadMap roadMap)
{
var newRoads = new List <Road>();
if (prevSegment.severed)
{
return(newRoads);
}
if (segFactory == null)
{
Initialize();
}
Road continueStraight = segFactory.CreateRoad(
prevSegment.end,
prevSegment.transform.localRotation,
prevSegment.length,
prevSegment.t + 1,
prevSegment.type
);
float straightPop = Heatmap.Value(continueStraight.end);
if (prevSegment.type == RoadType.Highway)
{
// generate a random deviation and compare to going straight,
// chosing the road that leads to the highest population
float newAngle = prevSegment.transform.localEulerAngles.y + CityConfig.RandomStraightAngle();
Road randomStraight = segFactory.CreateRoad(
prevSegment.end,
Quaternion.Euler(prevSegment.transform.localEulerAngles.x, newAngle, 0),
prevSegment.length,
prevSegment.t + 1,
prevSegment.type
);
float randomPop = Heatmap.Value(randomStraight.end);
float roadPop;
Road straight;
if (randomPop > straightPop)
{
newRoads.Add(randomStraight);
roadPop = randomPop;
straight = randomStraight;
DestroyImmediate(continueStraight.gameObject);
}
else
{
newRoads.Add(continueStraight);
roadPop = straightPop;
straight = continueStraight;
DestroyImmediate(randomStraight.gameObject);
}
// highway branches off highway
if (roadPop > CityConfig.HIGHWAY_BRANCH_POPULATION_THRESHOLD)
{
Junction j = null;
if (Random.value < CityConfig.HIGHWAY_BRANCH_PROBABILITY)
{
Road leftRoad = AddBranch(
prevSegment,
straight,
j,
prevSegment.transform.localEulerAngles.y - 90 + CityConfig.RandomBranchAngle(),
prevSegment.length,
prevSegment.t + 1,
prevSegment.type
);
newRoads.Add(leftRoad);
}
if (Random.value < CityConfig.HIGHWAY_BRANCH_PROBABILITY)
{
Road rightRoad = AddBranch(
prevSegment,
straight,
j,
prevSegment.transform.localEulerAngles.y + 90 + CityConfig.RandomBranchAngle(),
prevSegment.length,
prevSegment.t + 1,
prevSegment.type
);
newRoads.Add(rightRoad);
}
}
}
else if (straightPop > CityConfig.STREET_BRANCH_POPULATION_THRESHOLD)
{
// do not delete continueStraight
newRoads.Add(continueStraight);
}
else
{
DestroyImmediate(continueStraight.gameObject);
}
// street branches off either highway or streets
if (straightPop > CityConfig.STREET_BRANCH_POPULATION_THRESHOLD)
{
int t = (prevSegment.type == RoadType.Highway) ? CityConfig.STREET_FROM_HIGHWAY_DELAY : 1;
Junction j = null;
if (Random.value < CityConfig.STREET_BRANCH_PROBABILITY)
{
Road leftRoad = AddBranch(
prevSegment,
continueStraight,
j,
prevSegment.transform.localEulerAngles.y - 90 + CityConfig.RandomBranchAngle(),
CityConfig.STREET_SEGMENT_LENGTH,
prevSegment.t + t,
RoadType.Street
);
newRoads.Add(leftRoad);
}
if (Random.value < CityConfig.STREET_BRANCH_PROBABILITY)
{
Road leftRoad = AddBranch(
prevSegment,
continueStraight,
j,
prevSegment.transform.localEulerAngles.y + 90 + CityConfig.RandomBranchAngle(),
CityConfig.STREET_SEGMENT_LENGTH,
prevSegment.t + t,
RoadType.Street
);
newRoads.Add(leftRoad);
}
}
// set up links between roads
foreach (Road r in newRoads)
{
r.Parent = prevSegment;
prevSegment.next.Add(new Road.Neighbour(r, true));
foreach (Road r_other in newRoads)
{
if (r_other.id != r.id)
{
r.prev.Add(new Road.Neighbour(r_other, false));
}
}
}
return(newRoads);
}
