bohao2014 / traffic_sim_l2

CppNd-Traffic-Simulation-L2

Summary

This is project Stage2

Bsed on project stage1, this project add functions, which comunicates between vehicles and intersection to ensure one intersection pass one vehicle one time.

projectL2 structue

Dependencies for Buiding

• cmake >= 2.8
  • All OSes: click here for installation instructions
• make >= 4.1 (Linux, Mac), 3.81 (Windows)
  • Linux: make is installed by default on most Linux distros
  • Mac: install Xcode command line tools to get make
  • Windows: Click here for installation instructions
• OpenCV >= 4.1
  • The OpenCV 4.1.0 source code can be found here
• gcc/g++ >= 5.4
  • Linux: gcc / g++ is installed by default on most Linux distros
  • Mac: same deal as make - install Xcode command line tools
  • Windows: recommend using MinGW Windows: recommend using MinGW make build director in top location of project file, then do make.. && make, after build completed using command ./traffic_simulation to run.

Basic Build Instructions

1. Clone this repo.
2. Make a build directory in the top level directory: mkdir build && cd build
3. Compile: cmake .. && make
4. Run it: ./traffic_simulation.

Project Tasks

• Task L2.1 : In method Vehicle::drive(), start up a task using std::async which takes a reference to the method Intersection::addVehicleToQueue, the object _currDestination and a shared pointer to this using the get_shared_this() function. Then, wait for the data to be available before proceeding to slow down.

• Task L2.2 : In method Intersection::addVehicleToQueue(), add the new vehicle to the waiting line by creating a promise, a corresponding future and then adding both to _waitingVehicles. Then wait until the vehicle has been granted entry.

• Task L2.3 : In method WaitingVehicles::permitEntryToFirstInQueue(), get the entries from the front of _promises and _vehicles. Then, fulfill promise and send signal back that permission to enter has been granted. Finally, remove the front elements from both queues.