public PointF pointnearestto(game_object dobject)
{
PointF nearestpoint = new PointF();
//gives closest x to guy on wall
if (dobject.getx() < this.left)
{
nearestpoint.X = this.left;
}
else if (dobject.getx() > this.left + this.width)
{
nearestpoint.X = this.left + this.width;
}
else
{
nearestpoint.X = dobject.getx();
}
//gives closest y point to guy on wall
if (dobject.gety() < this.top)
{
nearestpoint.Y = this.top;
}
else if (dobject.gety() > this.top + this.height)
{
nearestpoint.Y = this.top + this.height;
}
else
{
nearestpoint.Y = dobject.gety();
}
return(nearestpoint);
}
public bool istouching(game_object otherobject)
{
float distance = (float)Math.Sqrt((otherobject.getx() - this.location.X) * (otherobject.getx() - this.location.X)
+ (otherobject.gety() - this.location.Y) * (otherobject.gety() - this.location.Y));
return(distance <= this.radius + otherobject.getradius());
}
public bool seeobject(game_object g)
{
PointF objloc = new PointF();
objloc.X = g.getx();
objloc.Y = g.gety();
float xdifference = objloc.X - this.location.X;
float ydifference = objloc.Y - this.location.Y;
float targetangle = (float)(180f / Math.PI * Math.Atan2((double)-ydifference, (double)xdifference));
if (targetangle < 0)
{
targetangle += 360;
}
float maxangle = (this.angle + visionangle);
float minangle = (this.angle - visionangle);
if (minangle < 0 && targetangle > 270)
{
minangle += 360;
maxangle += 360;
}
else if (maxangle > 360 && targetangle < 90)
{
minangle -= 360;
maxangle -= 360;
}
if (targetangle < minangle || targetangle > maxangle)
{
return(false);
}
foreach (wall w in MainForm.walllist)
{
if (game_object.checklineintersection(this.location.X, this.location.Y, objloc.X, objloc.Y, w.left, w.top, w.left + w.width, w.top))
{
return(false);
}
if (game_object.checklineintersection(this.location.X, this.location.Y, objloc.X, objloc.Y, w.left, w.top, w.left, w.top + w.height))
{
return(false);
}
if (game_object.checklineintersection(this.location.X, this.location.Y, objloc.X, objloc.Y, w.left + w.width, w.top + w.height, w.left, w.top + w.height))
{
return(false);
}
if (game_object.checklineintersection(this.location.X, this.location.Y, objloc.X, objloc.Y, w.left + w.width, w.top, w.left + w.width, w.top + w.height))
{
return(false);
}
}
return(true);
}
