I only see about 10th of these planes and boxes at a given time, so I can split them up into 25 planes + 50 boxes and dynamically turn them on or off as I move about (Is setVisible(false) enough - or do I have to drop the sceneNodes and re-create them?)
Here's my current code:
Code: Select all
//get vector of horizontal or vertical walls with x1,y1 and x2,y2 (where x1<=x2, and y1<=y2, and if x2-x1 is none-zero than y2==y1 and vice versa)
auto walls = _worldModel.getMaze().getMazeWalls();
irr::extra::irr_ptr<irr::scene::CBatchingMesh *> batchingMesh(new irr::scene::CBatchingMesh());
irr::scene::IGeometryCreator const * geometryCreator(_sceneManager->getGeometryCreator());
irr::extra::irr_ptr<irr::scene::IMesh *> floorTile(geometryCreator->createPlaneMesh(irr::core::dimension2d<irr::f32>(1, 1)));
floorTile->getMeshBuffer(0)->getMaterial().setTexture(0, _videoDriver->getTexture("..\\media\\floor.jpg"));
for (unsigned int y = 0; y < _length; ++y)
{
for (unsigned int x = 0; x < _width; ++x)
{
batchingMesh->addMesh(floorTile.get(),
irr::core::vector3df(x - 0.5, 0,
y - 0.5));
}
}
irr::extra::irr_ptr<irr::scene::IMesh *> horizontalBoundingWall(geometryCreator->createCubeMesh(irr::core::vector3df(0.9f, 1.5f, 0.1f)));
irr::extra::irr_ptr<irr::scene::IMesh *> verticalBoundingWall(geometryCreator->createCubeMesh(irr::core::vector3df(0.1f, 1.5f, 0.9f)));
auto wallTexture = _videoDriver->getTexture("../media/t351sml.jpg");
horizontalBoundingWall->getMeshBuffer(0)->getMaterial().setTexture(0, wallTexture);
verticalBoundingWall->getMeshBuffer(0)->getMaterial().setTexture(0, wallTexture);
float horizontalWallOffsetX = -0.45f;
float horizontalWallOffsetY = -0.95f;
float verticalWallOffsetX = -0.95f;
float verticalWallOffsetY = -0.45f;
//add maze bounding walls
for (unsigned int x = 0; x < _width; ++x)
{
batchingMesh->addMesh(horizontalBoundingWall.get(), irr::core::vector3df(x + horizontalWallOffsetX, 0, horizontalWallOffsetY));
batchingMesh->addMesh(horizontalBoundingWall.get(), irr::core::vector3df(x + horizontalWallOffsetX, 0, horizontalWallOffsetY + _length));
}
for (unsigned int y = 0; y < _length; ++y)
{
batchingMesh->addMesh(verticalBoundingWall.get(), irr::core::vector3df(verticalWallOffsetX, 0, y + verticalWallOffsetY));
batchingMesh->addMesh(verticalBoundingWall.get(), irr::core::vector3df(verticalWallOffsetX + _width, 0, y + verticalWallOffsetY));
}
//add all other maze walls
for (const auto & wall : walls)
{
int dx = wall.x2 - wall.x1;
int dy = wall.y2 - wall.y1;
if (dx) //check if horizontal wall
{
for (auto x = 0; x < dx; ++x)
batchingMesh->addMesh(horizontalBoundingWall.get(), irr::core::vector3df(x + wall.x1 + horizontalWallOffsetX, 0,
wall.y1 + horizontalWallOffsetY));
}
else //or vertical wall
{
for (auto y = 0; y < dy; ++y)
batchingMesh->addMesh(verticalBoundingWall.get(), irr::core::vector3df(wall.x1 + verticalWallOffsetX, 0,
y + wall.y1 + verticalWallOffsetY));
}
}
batchingMesh->update();
auto floorNode = _sceneManager->addMeshSceneNode(batchingMesh.get(), _sceneManager->getRootSceneNode(), 0);
