/*
* Checks whatever the line of sight between two game entities is clear or not
* precision describes how many iterations of collision checks are done per call
* */
public static bool checkLineOfSight(GameEntity start, GameEntity end, int precision)
{
//create a vector2 with a position of an "imaginary bullet" - a bullet on its path from the entity
//to the position of the player
Vector2 imaginaryBulletPosition = start.Position;
//divide the distance into 10 steps - not super precise,but enough for quick detection
Vector2 iStep = (end.Position - start.Position) / (float)precision;
//do the collision check for each step
for (int i = 0; i < precision; i++)
{
if (Collisions.checkWallsCollisionsSimple(imaginaryBulletPosition, MapManager.Instance.currentMap))
{
return(false);
}
imaginaryBulletPosition += iStep;
}
//return true if there was no collision along the way
return(true);
}
