foo.mm

//TDGameViewController

- (void)spawnMob
{
    if([self.waypoints count] > 1) {
        TDMob *mob = [[TDMob alloc] initWithStartingWaypoint:[self.waypoints objectAtIndex:0]];
        [mob setTargetWaypoint: [self.waypoints objectAtIndex:1]];
        [self.scene addChild:mob];
    }
}




//TDMob

-(void)setTargetWaypoint:(TDWaypoint *)targetWaypoint
{
    float distance = DistanceBetweenTwoPoints(self.position, targetWaypoint.position);
    NSTimeInterval duration = 1.0 * (distance / self.pixelsPerSecond);
    SKAction *act = [SKAction moveTo:targetWaypoint.position duration:duration];

    [self runAction:act completion:^{
        if(targetWaypoint.nextWaypoint) {
            [self setTargetWaypoint:targetWaypoint.nextWaypoint];
        }
    }];
    
}