public static bool TraceRayShot(Vector2f posStart, Vector2f posEnd, int length, out List <Vector2f> outPosCollisions, bool isThrow, Map map, BlockInfo blockInfo)
{
outPosCollisions = new List <Vector2f>();
Vector2f aDir = posEnd - posStart;
float ax;
float ay;
if (Math.Abs(aDir.x) > Math.Abs(aDir.y))
{
if (Math.Abs(aDir.y) > 0.001f)
{
ay = aDir.y / Math.Abs(aDir.x);
}
else
{
ay = 0;
}
ax = 1.0f;
if (aDir.x < 0)
{
ax = -1.0f;
}
}
else
{
if (Math.Abs(aDir.x - 0.0f) > 0.001f)
{
ax = aDir.x / Math.Abs(aDir.y);
}
else
{
ax = 0;
}
ay = 1.0f;
if (aDir.y < 0)
{
ay = -1.0f;
}
}
Vector2f aCurPos = new Vector2f(posStart.x, posStart.y);
int aCountLen = 0;
while (true)
{
aCurPos.x += ax;
aCurPos.y += ay;
Vector2w pos = new Vector2w((int)Math.Floor(aCurPos.x), (int)Math.Floor(aCurPos.y));
if (!map.IsMap(pos))
{
if (isThrow)
{
aCurPos.x -= ax;
aCurPos.y -= ay;
}
outPosCollisions.Add(aCurPos);
return(false);
}
if (!IsShotFree(pos, isThrow, map, blockInfo))
{
if (!isThrow)
{
outPosCollisions.Add(aCurPos);
return(true);
}
else
{
aCurPos.x -= ax;
aCurPos.y -= ay;
outPosCollisions.Add(aCurPos);
return(true);
}
}
if (map.IsUnitPos(pos))
{
outPosCollisions.Add(aCurPos);
}
aCountLen++;
if (aCountLen >= length)
{
outPosCollisions.Add(aCurPos);
return(false);
}
}
}
private static bool TraceRayVisible(Vector2f inStart, Vector2f inEnd, int inLength, Map map, BlockInfo blockInfo)
{
Vector2f aDir = inEnd - inStart;
float ax;
float ay;
if (Math.Abs(aDir.x) > Math.Abs(aDir.y))
{
if (Math.Abs(aDir.y) > 0.001f)
{
ay = aDir.y / Math.Abs(aDir.x);
}
else
{
ay = 0;
}
ax = 1.0f;
if (aDir.x < 0)
{
ax = -1.0f;
}
}
else
{
if (Math.Abs(aDir.x - 0.0f) > 0.001f)
{
ax = aDir.x / Math.Abs(aDir.y);
}
else
{
ax = 0;
}
ay = 1.0f;
if (aDir.y < 0)
{
ay = -1.0f;
}
}
Vector2f aCurPos = new Vector2f(inStart.x, inStart.y);
int aCountLen = 0;
while (true)
{
aCurPos.x += ax;
aCurPos.y += ay;
Vector2w aPos = new Vector2w((int)Math.Floor(aCurPos.x), (int)Math.Floor(aCurPos.y));
if (!map.IsMap(aPos))
{
return(false);
}
aCountLen++;
if (aCountLen >= inLength)
{
return(true);
}
if (!map.IsVisibleBlock(aPos, blockInfo))
{
return(false);
}
}
}
