Example #1
0
void laserCallBack(const sensor_msgs::LaserScan::ConstPtr& laser){
    if(odomVal){ 
        float xx, yy, yaw, optYaw, turnDir;
        int obstacle = 0;
        geometry_msgs::Twist msg;

        xx = (odomVal -> pose).pose.position.x;
        yy = (odomVal -> pose).pose.position.y;
        yaw = tf::getYaw((odomVal -> pose).pose.orientation); 
        optYaw = optAngle(xx, yy);

        if (!onSink(xx,yy)){
            if (nearObject(laser)){                 // Obstacle
                avoidObstacle = true;
                turnDir = reorient(laser);
                msg.angular.z = turnAngle;
                blockPath(laser, yaw, optYaw);
                ROS_INFO("[Avoiding Obstacle] yaw: %.2f, avoid: %i\n", yaw, avoidObstacle);
            } else if ((fabs(yaw-optYaw) > angErr) && !avoidObstacle){  // Not facing sink
                msg.angular.z = turnAngle; 
                ROS_INFO("[Current Location] (x,y): (%.2f, %.2f)\n", xx, yy);
                ROS_INFO("[Adjust Direction] yaw: %.2f opt: %.2f \n", yaw, optYaw); 
            } else {                                // Move robot 
                msg.linear.x = moveRate;
                ROS_INFO("[Moving...]\n");      
                avoidObstacle = blockPath(laser, yaw, optYaw);
                if(!avoidObstacle)
                    ROS_INFO("[Moving towards destination!!!]\n");
            } 
            cmd_velPub.publish(msg);
        }
    }
}
Example #2
0
bool Walkway::nearCoin(GLfloat x, GLfloat y, GLfloat z) {
    return nearObject(x, y, z, coinDisks);
}
Example #3
0
bool Walkway::nearEnergy(GLfloat x, GLfloat y, GLfloat z) {
    return nearObject(x, y, z, energyBalls);
}