Data Structures

// FCMeshStruct is configured in a DataTable.
// Each row represents a mesh with its Z positioning algorithm.

FCMeshStruct meshStruct;
meshStruct.mesh = myStaticMesh;
meshStruct.zAlgo = ZPositionCalculate::FOUR_POINT;
meshStruct.percentBelowFloor = 15.0; // 15% of the bounding box below ground

// Selection works as follows:
// A random [0.0, 1.0] is drawn per tile.
// The first FCMeshProbaStruct whose [lowerBound, upperBound] contains the value is selected.

// Example: 3 meshes with probabilities 60%, 30%, 10%
FCMeshProbaStruct tree;   // lowerBound=0.0, upperBound=0.6
FCMeshProbaStruct rock;   // lowerBound=0.6, upperBound=0.9
FCMeshProbaStruct bush;   // lowerBound=0.9, upperBound=1.0

// FCHexaMakerStruct is configured in a DataTable.
// Each row represents an independent placement "layer".

FCHexaMakerStruct layer;
layer.pattern = HexaPattern::HEXAGONE;
layer.tileSize = 200;
layer.nbHexaAround = 8;
layer.rotate = true;
layer.minJitterForce = 0.1;
layer.maxJitterForce = 0.3;
layer.minScalePercent = 0.8;
layer.maxScalePercent = 1.5;
layer.alignToSlope = true;
layer.withBound = true;
layer.above = -500.0;
layer.below = 5000.0;
layer.withNormal = true;
layer.zMinNornal = 0.7;  // no placement on steep slopes
layer.zMaxNornal = 1.0;
layer.cullDistanceStart = 10000;
layer.cullDistanceEnd = 15000;
layer.roomType = CRoomType::ROOM;

// FCHexaSpawnerDataStruct is referenced by ACHexaSpawner via FDataTableRowHandle.
// It contains the list of layers to generate.
// Each layer is distributed across available CPU cores for parallel computation.

TArray<FCHexaMakerStruct*> layers = data->getHexaMakerStructArray();
// Returns the resolved FCHexaMakerStruct* from the DataTableRowHandles.