/// <summary>
/// Draw the lines and dots around a location, as well as the closest dot to that location.
/// </summary>
/// <param name="location"></param>
/// <returns></returns>
public static Vector3 RenderAvailablePositions(Vector3 location)
{
float closestDistance = float.MaxValue;
float floorHeight = TerrainGenerator.getInstance().getFloorHeight();
float hoverHeight = 0.5f;
Vector3 closestPosition = location;
int sigSplit = NumSteps / NumSigDots;
bool useCachedData = Vector3.Distance(location, LastInputPoint) < 0.1f;
List <Module> nearModules;
// If we want to use cached data, we can skip most of this function.
// Otherwise, update the cache.
if (useCachedData)
{
return(LastSnapPoint);
}
else
{
nearModules = ModuleHelper.GetAllModules(module =>
{
float dist = Vector3.Distance(module.getPosition(), location);
bool inRange = dist < MaxDistToCheck * 2;
bool isNotActiveModule = module != ActiveModule;
return(inRange && isNotActiveModule);
});
LastListModules = nearModules;
LastInputPoint = location;
// Only clear the group if we're not using cache
DebugRenderer.ClearGroup(GroupName);
}
foreach (Module module in nearModules)
{
bool flipflop = true;
List <PositionsLine> lines;
// Attempt to use cached data. We don't need to use the cached flag here
// because if cache is set, we skip this block entirely. This is only a check
// to see if the module has data in the dict already.
if (ModuleLineCache.ContainsKey(module))
{
lines = ModuleLineCache[module];
}
else
{
lines = GetPositionsAroundModule(module);
ModuleLineCache.Add(module, lines);
}
foreach (var line in lines)
{
var startPoint = line.First();
var endPoint = line.Last();
startPoint.y = floorHeight;
endPoint.y = floorHeight;
bool renderedAnyDot = false;
// line is a List<Vector3>, so iterate through it to draw the points.
foreach (Vector3 point in line)
{
Vector3 pointOnFloor = point;
pointOnFloor.y = floorHeight;
// This math will put the dots at the end of each section.
bool isSignificantPoint = line.IndexOf(point) % sigSplit == (sigSplit - 1);
bool canLink = Connection.canLink(
ActiveModule, module,
pointOnFloor, module.getPosition());
bool canPlace = module.canPlaceModule(
pointOnFloor, Vector3.up, ActiveModuleSize);
if (canLink && canPlace)
{
renderedAnyDot = true;
var tmpPoint = pointOnFloor;
tmpPoint.y += hoverHeight;
// Dots are red and large if significant, else blue and small.
DebugRenderer.AddCube(
GroupName, tmpPoint,
(isSignificantPoint) ? Color.blue : Color.red,
(isSignificantPoint) ? 0.75f : 0.25f);
// If the distance to this point is less than the last closest,
// update the closest.
float dist = Vector3.Distance(pointOnFloor, location);
if (dist < closestDistance)
{
closestDistance = dist;
closestPosition = pointOnFloor;
}
}
}
// Only render the line if a dot was rendered, but always flip-flop the color.
if (renderedAnyDot)
{
var tmpStart = startPoint;
var tmpEnd = endPoint;
tmpStart.y += hoverHeight;
tmpEnd.y += hoverHeight;
// Alternate colors, draw the line.
DebugRenderer.AddLine(
GroupName,
tmpStart, tmpEnd,
(flipflop) ? Color.blue : Color.green,
0.125f);
}
flipflop = !flipflop;
}
}
Rendering = true;
LastSnapPoint = closestPosition;
return(closestPosition);
}