| 388 | } |
| 389 | |
| 390 | List<WorldLayout::RegionWeighting> WorldLayout::getWeighting(int x, int y) const { |
| 391 | List<RegionWeighting> weighting; |
| 392 | WorldGeometry geometry(m_worldSize); |
| 393 | |
| 394 | auto cellWeighting = [&](WorldLayer const& layer, size_t cellIndex, int x) -> float { |
| 395 | int xMin = 0; |
| 396 | if (cellIndex > 0) |
| 397 | xMin = layer.boundaries[cellIndex - 1]; |
| 398 | |
| 399 | int xMax = m_worldSize[0]; |
| 400 | if (cellIndex < layer.boundaries.size()) |
| 401 | xMax = layer.boundaries[cellIndex]; |
| 402 | |
| 403 | if (x > (xMin + xMax) / 2.0f) |
| 404 | return clamp<float>(0.5f - (x - xMax) / m_regionBlending, 0.0f, 1.0f); |
| 405 | else |
| 406 | return clamp<float>(0.5f - (xMin - x) / m_regionBlending, 0.0f, 1.0f); |
| 407 | }; |
| 408 | |
| 409 | auto addLayerWeighting = [&](WorldLayer const& layer, int x, float weightFactor) { |
| 410 | if (layer.cells.empty()) |
| 411 | return; |
| 412 | |
| 413 | size_t innerCellIndex; |
| 414 | int innerCellXValue; |
| 415 | tie(innerCellIndex, innerCellXValue) = findContainingCell(layer, x); |
| 416 | float innerCellWeight = cellWeighting(layer, innerCellIndex, innerCellXValue); |
| 417 | |
| 418 | size_t leftCellIndex; |
| 419 | int leftCellXValue; |
| 420 | tie(leftCellIndex, leftCellXValue) = leftCell(layer, innerCellIndex, innerCellXValue); |
| 421 | float leftCellWeight = cellWeighting(layer, leftCellIndex, leftCellXValue); |
| 422 | |
| 423 | size_t rightCellIndex; |
| 424 | int rightCellXValue; |
| 425 | tie(rightCellIndex, rightCellXValue) = rightCell(layer, innerCellIndex, innerCellXValue); |
| 426 | float rightCellWeight = cellWeighting(layer, rightCellIndex, rightCellXValue); |
| 427 | |
| 428 | float totalWeight = innerCellWeight + leftCellWeight + rightCellWeight; |
| 429 | if (totalWeight <= 0.0f) |
| 430 | return; |
| 431 | |
| 432 | innerCellWeight *= weightFactor / totalWeight; |
| 433 | leftCellWeight *= weightFactor / totalWeight; |
| 434 | rightCellWeight *= weightFactor / totalWeight; |
| 435 | |
| 436 | if (innerCellWeight > 0.0f) |
| 437 | weighting.append(RegionWeighting{innerCellWeight, innerCellXValue, layer.cells[innerCellIndex].get()}); |
| 438 | |
| 439 | if (leftCellWeight > 0.0f) |
| 440 | weighting.append(RegionWeighting{leftCellWeight, leftCellXValue, layer.cells[leftCellIndex].get()}); |
| 441 | |
| 442 | if (rightCellWeight > 0.0f) |
| 443 | weighting.append(RegionWeighting{rightCellWeight, rightCellXValue, layer.cells[rightCellIndex].get()}); |
| 444 | }; |
| 445 | |
| 446 | auto yi = std::lower_bound(m_layers.begin(), m_layers.end(), y, [](WorldLayer const& layer, int y) { |
| 447 | return layer.yStart < y; |