int EngineMain(string worldFile)
{
int returnValue = Quit_Completely;
//--------------------------
// CrowdDynamics Setup
//--------------------------
GSceneManager* crowdEngine = GSceneManager::GetInstance(worldFile);
worldBlueprint = crowdEngine->GetWorldBlueprint();
// Create a 3D engine (using TLX engine here) and open a window for it
I3DEngine* gameEngine = New3DEngine(kTLX);
gameEngine->StartWindowed();
// Add default folder for meshes and other media
gameEngine->AddMediaFolder(".\\Media");
IFont* mousePosFont = gameEngine->LoadFont("Font1.bmp");
IMesh* floorTileMesh = gameEngine->LoadMesh("FloorTile.x");
IMesh* vectorMesh = gameEngine->LoadMesh("Vector.x");
IMesh* influenceTileMesh = gameEngine->LoadMesh("InfluenceTile.x");
IMesh* SkyboxMesh = gameEngine->LoadMesh("Skybox.x");
////////////////////////
// Obstacles
////////////////////////
std::map<string, float> obstacleMeshList = crowdEngine->GetObstacleMeshes();
std::map<string, IMesh*> obstacleTLMeshes;
for (auto mesh : obstacleMeshList) //Load the TL Meshes
{
obstacleTLMeshes.emplace(make_pair(mesh.first, gameEngine->LoadMesh(mesh.first)));
}
vector<UID> obstacleUIDs = crowdEngine->GetObstacleUIDs(); //Get a list of all the obstacles in the scene
map<UID, IModel*> obstacleModels;
for (auto id : obstacleUIDs) //Construct a TL model for each obstacle
{
string thisMeshName;
if (crowdEngine->GetObstacleMesh(id, thisMeshName))
{
obstacleModels.emplace(id, obstacleTLMeshes[thisMeshName]->CreateModel());
}
}
////////////////////////
// Agents
////////////////////////
std::map<string, float> agentMeshScales = crowdEngine->GetAgentMeshes();
std::map<string, IMesh*> agentTLMeshes;
for (auto mesh : agentMeshScales)
{
agentTLMeshes.emplace(make_pair(mesh.first, gameEngine->LoadMesh(mesh.first)));
}
map<UID, IModel*> Agents;
map<UID, IModel*> DestinationVectors;
map<UID, IModel*> MovementVectors;
vector<UID> AgentIDs = crowdEngine->GetAgentUIDs();
for (auto id : AgentIDs)
{
//Use the Y Column as the height (0 column), CrowdDynamics uses X and Y as this will use X and Z
//Where the model spawns is irrelevant as it's matrix is built from the CrowdDynamics matrix
string thisMeshName;
if (crowdEngine->GetAgentMeshFile(id, thisMeshName))
{
Agents.emplace(make_pair(id, agentTLMeshes[thisMeshName]->CreateModel()));
Agents[id]->ScaleY(agentMeshScales[thisMeshName]);
#ifdef DirectionVisualiserEnabled
DestinationVectors.insert(make_pair(id, vectorMesh->CreateModel()));
MovementVectors.insert(make_pair(id, vectorMesh->CreateModel()));
#endif
}
}
#ifdef DirectionVisualiserEnabled
for (auto item : MovementVectors)
{
item.second->SetSkin("vectortex2.jpg");
}
#endif
IModel** FloorTiles;
IModel* SkyBox = SkyboxMesh->CreateModel();
SkyBox->ScaleX((worldBlueprint.WorldSize.x + 2000.0f) / 2000.0f); //worldBlueprint.WorldSize.x / 200.0f);
SkyBox->ScaleZ((worldBlueprint.WorldSize.y + 2000.0f) / 2000.0f); //worldBlueprint.WorldSize.y / 200.0f);
SkyBox->SetPosition(worldBlueprint.WorldSize.x / 2.0f, -1000.0f, worldBlueprint.WorldSize.y / 2.0f);
FloorTiles = new IModel*[worldBlueprint.subdivisions.x * worldBlueprint.subdivisions.y];
for (int i = 0; i < worldBlueprint.subdivisions.x; i++)
{
for (int j = 0; j < worldBlueprint.subdivisions.y; j++)
{
FloorTiles[i * worldBlueprint.subdivisions.x + j] = floorTileMesh->CreateModel(i * (worldBlueprint.WorldSize.x / worldBlueprint.subdivisions.x), 0.0f, j * (worldBlueprint.WorldSize.y / worldBlueprint.subdivisions.y));
FloorTiles[i * worldBlueprint.subdivisions.x + j]->ScaleX(worldBlueprint.WorldSize.x / worldBlueprint.subdivisions.x);
FloorTiles[i * worldBlueprint.subdivisions.x + j]->ScaleZ(worldBlueprint.WorldSize.y / worldBlueprint.subdivisions.y);
FloorTiles[i * worldBlueprint.subdivisions.x + j]->Scale(1.0f);
}
}
#ifdef InfluenceVisualiserEnabled
IModel** InfluenceTiles;
InfluenceTiles = new IModel*[worldBlueprint.influenceSubdivisions.x * worldBlueprint.influenceSubdivisions.y];
for (int i = 0; i < worldBlueprint.influenceSubdivisions.x; i++)
{
for (int j = 0; j < worldBlueprint.influenceSubdivisions.y; j++)
{
InfluenceTiles[i * worldBlueprint.influenceSubdivisions.x + j] = influenceTileMesh->CreateModel(static_cast<float>(i) / worldBlueprint.influenceSquaresPerUnit, 0.5f, (static_cast<float>(j) + 1) / worldBlueprint.influenceSquaresPerUnit);
InfluenceTiles[i * worldBlueprint.influenceSubdivisions.x + j]->RotateX(180.0f);
InfluenceTiles[i * worldBlueprint.influenceSubdivisions.x + j]->ScaleX((1.0f / worldBlueprint.influenceSquaresPerUnit) * 0.75f);
InfluenceTiles[i * worldBlueprint.influenceSubdivisions.x + j]->ScaleZ((1.0f / worldBlueprint.influenceSquaresPerUnit) * 0.75f);
}
}
#endif
ICamera* cameras[Camera_Size];
ECameraState currentCameraState = Camera_TopDown;
cameras[Camera_FirstPerson]= gameEngine->CreateCamera(kFPS, worldBlueprint.WorldSize.x / 2.0f, (worldBlueprint.WorldSize.x + worldBlueprint.WorldSize.y) / 2, worldBlueprint.WorldSize.y / 2.0f);
cameras[Camera_FirstPerson]->SetMovementSpeed(100.0f);
cameras[Camera_FirstPerson]->SetRotationSpeed(25.0f);
cameras[Camera_FirstPerson]->RotateX(90.0f);
cameras[Camera_TopDown] = gameEngine->CreateCamera(kManual, worldBlueprint.WorldSize.x / 2.0f, 220.0f, worldBlueprint.WorldSize.y / 2.0f);
cameras[Camera_TopDown]->RotateX(90.0f);
float frameRate;
stringstream frameStream;
gen::CMatrix3x3 tempAgentMat;
string tempString;
//Assign the simulation matrices to the model matrices - first time
UpdateAgentsFromCrowdData(crowdEngine, Agents, agentMeshScales,agentTLMeshes, DestinationVectors, MovementVectors);
UpdateObstaclesFromCrowdData(crowdEngine, obstacleModels);
UID holding = -1;
crowdEngine->SetPaused(true);
// The main game loop, repeat until engine is stopped
while (gameEngine->IsRunning())
{
if (gameEngine->KeyHit(Key_Escape))
{
returnValue = Quit_Completely;
gameEngine->Stop();
}
if (gameEngine->KeyHit(Key_Delete))
{
returnValue = Quit_LoadNewMap;
gameEngine->Stop();
}
frameTime = gameEngine->Timer();
// Draw the scene
gameEngine->DrawScene(cameras[currentCameraState]);
//Check if the active camera is to change
CameraSwitcher(gameEngine, cameras, currentCameraState);
DrawPointingPosition(gameEngine, cameras[currentCameraState], mousePosFont, frameStream);
frameRate = 1 / frameTime;
frameStream << setprecision(4) << (frameRate);
gameEngine->SetWindowCaption(frameStream.str());
frameStream.str("");
CameraControls(gameEngine, cameras[currentCameraState]);
/**** Update your scene each frame here ****/
crowdEngine->Update(frameTime); //Update the CrowdDynamics simulation
//Update the influence representation from the crowd engine
#ifdef InfluenceVisualiserEnabled
UpdateInfluenceFromCrowdData(crowdEngine, InfluenceTiles);
#endif
//Assign the simulation matrices to the model matrices
UpdateAgentsFromCrowdData(crowdEngine, Agents, agentMeshScales, agentTLMeshes, DestinationVectors, MovementVectors);
UpdateObstaclesFromCrowdData(crowdEngine, obstacleModels);
if (gameEngine->KeyHit(pauseKey))
{
crowdEngine->SetPaused(!crowdEngine->GetIsPaused()); //Toggle paused
}
if (gameEngine->KeyHeld(Key_T) && crowdEngine->GetIsPaused())
{
crowdEngine->PerformOneTimeStep(); //Update the CrowdDynamics simulation
//Assign the simulation matrices to the model matrices
UpdateAgentsFromCrowdData(crowdEngine, Agents, agentMeshScales, agentTLMeshes, DestinationVectors, MovementVectors);
UpdateObstaclesFromCrowdData(crowdEngine, obstacleModels);
}
if (gameEngine->KeyHit(Key_N))
{
CVector3 tempPos = WorldPosFromPixel(gameEngine, cameras[currentCameraState]);
CVector2 mousePosition = CVector2(tempPos.x, tempPos.z);
#ifdef _DEBUG
crowdEngine->GetSquareString(mousePosition, tempString);
cout << tempString;
#endif
}
if (gameEngine->KeyHeld(Mouse_LButton))
{
if (holding == -1) //If not holding anything, pick the nearest item up
{
UID tempHold;
if (FindNearestAgent(Agents, crowdEngine, tempHold, gameEngine, cameras[currentCameraState]))
{
holding = tempHold;
string agentString;
#ifdef _DEBUG
if (crowdEngine->GetAgentString(holding, agentString))
{
cout << "Picked up: " << endl;
cout << agentString << endl;
}
#endif
try //Find the id 'holding' and set the holding skin
{
Agents.at(holding)->SetSkin("tiles3.jpg");
}
catch (std::out_of_range err)
{
cout << err.what();
}
}
}
if (holding != -1)
{
CVector3 tempPos = WorldPosFromPixel(gameEngine, cameras[currentCameraState]);
crowdEngine->SetAgentPosition(holding, CVector2(tempPos.x, tempPos.z));
UpdateAgentFromCrowdData(holding, crowdEngine, Agents, agentMeshScales, agentTLMeshes, DestinationVectors, MovementVectors);
}
}
else //Release the held item if there is a held item
{
if (holding != -1)
{
#ifdef _DEBUG
string agentString;
if (crowdEngine->GetAgentString(holding, agentString))
{
cout << "Dropped: " << endl;
cout << agentString << endl;
}
#endif
try
{
if (crowdEngine->GetAgentWatched(holding))
{
Agents.at(holding)->SetSkin("tiles2.jpg");
}
else
{
Agents.at(holding)->SetSkin("tiles1.jpg");
}
}
catch (std::out_of_range err)
{
cout << err.what();
}
holding = -1;
}
}
if (gameEngine->KeyHit(Mouse_RButton))
{
UID foundNearest;
if (FindNearestAgent(Agents, crowdEngine, foundNearest, gameEngine, cameras[currentCameraState]))
{
bool isWatched = crowdEngine->GetAgentWatched(foundNearest);
if (crowdEngine->SetAgentWatched(foundNearest, !crowdEngine->GetAgentWatched(foundNearest)))
{
cout << "Agent: " << foundNearest << " Is ";
if (isWatched) //Was being watched before change, is now not being watched
{
try
{
Agents.at(foundNearest)->SetSkin("tiles1.jpg");
}
catch (std::out_of_range err)
{
cout << endl << err.what() << endl;
}
cout << "Not ";
}
else
{
try
{
Agents.at(foundNearest)->SetSkin("tiles2.jpg");
}
catch (std::out_of_range err)
{
cout << endl << err.what() << endl;
}
}
cout << "Being Watched" << endl;
}
}
}
if (gameEngine->KeyHit(Key_Space))
{
CVector3 tempPos = WorldPosFromPixel(gameEngine, cameras[currentCameraState]);
string thisBlueprint = "AgentBlueprint1.xml";
UID newID = crowdEngine->AddAgent(thisBlueprint, true, CVector2(tempPos.x, tempPos.z));
if (agentMeshScales.count(thisBlueprint) == 0) //This blueprint does not already exist on the TL side
{
float scale;
if (crowdEngine->GetAgentMeshScale(thisBlueprint, scale))
{
agentTLMeshes.emplace(thisBlueprint, gameEngine->LoadMesh(thisBlueprint));
agentMeshScales[thisBlueprint] = scale;
}
}
Agents.insert(make_pair(newID, agentTLMeshes[thisBlueprint]->CreateModel(tempPos.x, 0.0f, tempPos.z)));
#ifdef DirectionVisualiserEnabled
DestinationVectors.insert(make_pair(newID, vectorMesh->CreateModel(tempPos.x, 10.0f, tempPos.z)));
MovementVectors.insert(make_pair(newID, vectorMesh->CreateModel(tempPos.x, 11.0f, tempPos.z)));
MovementVectors.at(newID)->SetSkin("vectortex2.jpg");
#endif
}
}
// Delete the 3D engine now we are finished with it
gameEngine->Delete();
delete[] FloorTiles;
#ifdef InfluenceVisualiserEnabled
delete[] InfluenceTiles;
#endif
delete crowdEngine;
return returnValue;
}
void UpdateAgentFromCrowdData(UID agentID, GSceneManager* crowdEngine, map<UID, IModel*>& agentModels, map<string, float> meshScales, map<string, IMesh*> meshList, map<UID, IModel*>& DestinationVectors, map<UID, IModel*>& MovementVectors)
{
gen::CMatrix3x3 tempAgentMat;
if (crowdEngine->GetAgentMatrix(agentID, tempAgentMat))
{
try //Find the id 'holding' and set the holding skin
{
float tempModelMat[16];
IModel* thisAgentModel;
thisAgentModel = agentModels.at(agentID);
float thisScale = meshScales[FindStringFromMesh(thisAgentModel->GetMesh(), meshList)];
thisAgentModel->GetMatrix(tempModelMat);
tempModelMat[0] = tempAgentMat.e00 * thisScale;
tempModelMat[2] = tempAgentMat.e01 * thisScale;
tempModelMat[8] = tempAgentMat.e10 * thisScale;
tempModelMat[10] = tempAgentMat.e11 * thisScale;
tempModelMat[12] = tempAgentMat.e20;
tempModelMat[14] = tempAgentMat.e21;
thisAgentModel->SetMatrix(tempModelMat);
}
catch (std::out_of_range err)
{
cout << err.what();
}
}
#ifdef DirectionVisualiserEnabled
gen::CVector2 tempDestination;
if (crowdEngine->GetAgentDestination(agentID, tempDestination))
{
IModel* thisVectorModel;
IModel* thisAgentModel;
thisAgentModel = agentModels.at(agentID);
thisVectorModel = DestinationVectors.at(agentID);
//Set the vector model to the id model's position
thisVectorModel->SetPosition(thisAgentModel->GetX(),
thisAgentModel->GetY() + 10.0f,
thisAgentModel->GetZ());
thisVectorModel->LookAt(tempDestination.x, 10.0f, tempDestination.y);
CVector2 vectorToEnd = tempDestination - CVector2(thisAgentModel->GetX(), thisAgentModel->GetZ());
thisVectorModel->ScaleZ(vectorToEnd.Length());
}
if (crowdEngine->GetAgentDesiredVector(agentID, tempDestination))
{
IModel* thisVectorModel;
IModel* thisAgentModel;
thisAgentModel = agentModels.at(agentID);
thisVectorModel = MovementVectors.at(agentID);
//Set the vector model to the id model's position
thisVectorModel->SetPosition(thisAgentModel->GetX(),
thisAgentModel->GetY() + 10.0f,
thisAgentModel->GetZ());
thisVectorModel->LookAt(tempDestination.x + thisAgentModel->GetX(), 10.0f, tempDestination.y + thisAgentModel->GetZ());
thisVectorModel->ScaleZ(tempDestination.Length());
}
#endif
}