private bool CheckIfIntersectedAnyVisiblePixel(Pixel currentPixel, MultipixelObject obsticle)
{
bool result = false;
foreach (Pixel pixel in obsticle.Body.Pixels)
{
if (pixel.x == currentPixel.x && pixel.y == currentPixel.y)
{
result = true;
pixel.IsLit = result;
}
}
return(result);
}
private void GenerateBody(MultipixelObject obsticle)
{
double distX = endPoint.x - startPoint.x;
double distY = endPoint.y - startPoint.y;
double directionCoef = Math.Abs(distX / distY);
if (distX == 0 || distY == 0)
{
directionCoef = 1;
}
double directionCoef1Plus = directionCoef > 1 ? directionCoef : 1 / directionCoef;
double restrictedMovesMaxFloor = Math.Floor(directionCoef1Plus);
double FloatingPointDelta = directionCoef1Plus - Math.Floor(directionCoef1Plus);
double moderatedMovesLeft = 0;
int freeMovesLeft = 0;
Pixel currentCell = startPoint;
//currentCell.Draw(); //for debugging
//endPoint.Draw(); //for debugging
while ((currentCell.x == endPoint.x && currentCell.y == endPoint.y) == false)
{
freeMovesLeft++;
moderatedMovesLeft += restrictedMovesMaxFloor;
if (FreeMovement(ref currentCell, ref moderatedMovesLeft, ref freeMovesLeft, obsticle))
{
return;
}
;
if (RestrictedMovement(ref currentCell, ref moderatedMovesLeft, FloatingPointDelta, obsticle))
{
return;
}
}
endPoint.IsLit = true;
}
private bool RestrictedMovement(ref Pixel currentCell, ref double moderatedMovesLeft, double FloatingPointDelta, MultipixelObject obsticle)
{
moderatedMovesLeft += FloatingPointDelta;
while (moderatedMovesLeft >= 1)
{
Pixel nearestCellSoFar = currentCell;
var surroundingCells = GetSurroundingCells(currentCell);
for (int i = 0; i < surroundingCells.Count; i++)
{
Pixel cellOnReview = surroundingCells[i];
var nearestDistanceSoFar = nearestCellSoFar.DistanceToAnotherPixel(endPoint);
var distanceOnReviev = cellOnReview.DistanceToAnotherPixel(endPoint);
if (distanceOnReviev < nearestDistanceSoFar)
{
if (cellOnReview.IsNotDiagonalToAnotherNearestPixel(currentCell))
{
nearestCellSoFar = cellOnReview;
}
}
}
currentCell = nearestCellSoFar;
moderatedMovesLeft--;
//currentCell.Draw(); //for debugging
if (CheckIfIntersectedAnyVisiblePixel(currentCell, obsticle))
{
return(true);
}
currentCell.shape = Shape;
currentCell.color = Color;
Body.Pixels.Add(currentCell);
}
return(false);
}
private Pixel endPoint; //wall
public LightRay(Pixel source, Pixel goal, MultipixelObject obsticle, char shape = '.', ConsoleColor color = ConsoleColor.White) : base(shape, color)
{
startPoint = source;
endPoint = goal;
GenerateBody(obsticle);
}
private bool FreeMovement(ref Pixel currentCell, ref double moderatedMovesLeft, ref int freeMovesLeft, MultipixelObject obsticle)
{
while (freeMovesLeft >= 1)
{
var surroundingCells = GetSurroundingCells(currentCell);
foreach (Pixel cell in surroundingCells)
{
var chosenDist = currentCell.DistanceToAnotherPixel(endPoint);
var dist = cell.DistanceToAnotherPixel(endPoint);
if (dist < chosenDist)
{
currentCell = cell;
}
}
//currentCell.Draw(); //for debugging
freeMovesLeft--;
moderatedMovesLeft--;
if (CheckIfIntersectedAnyVisiblePixel(currentCell, obsticle))
{
return(true);
}
currentCell.shape = Shape;
currentCell.color = Color;
Body.Pixels.Add(currentCell);
}
return(false);
}