//this actually causes the ship to move to a waypoint
void AISteering::moveTo(const Position &destination)
{
turnTo(destination);
if (isFacing(destination))
bot->thrust(true);
}
//Straight line distance + minimum rotations required
//Could be used as a better A* heuristic for the
// ZOMBIE's path finding function
int AI::zombieDistance(int startX, int startY, int targetX, int targetY,
int facing)
{
bool thisWay;
int initRotations = 6; //rotations needed before moving
int otherRotations = 0; //rotations needed later
int dis = distance(startX, startY, targetX, targetY);
int rotNeeded; //rotations needed to meet the current facing.
for (int i = 0; i < 6; i++)
{
thisWay = isFacing(startX, startY, targetX, targetY, i);
if (thisWay)
{
rotNeeded = abs(facing - i);
rotNeeded = min(abs(facing - i - 6), rotNeeded);
rotNeeded = min(abs(facing - i + 6), rotNeeded);
initRotations = min(initRotations, rotNeeded);
if (facing != i)
{
otherRotations += 1;
}
}
}
if (initRotations > 0)
otherRotations -= 1;
if (dis > 0)
dis = dis + initRotations + otherRotations;
return dis;
}
