Function next

Specs/TerrainTileProcessor.js:60–88

()

    let iterations = 0;

    function next() {
      ++iterations;
      ++that.frameState.frameNumber;

      // Keep going until all terrain and imagery provider are ready and states are no longer changing.
      let changed = false;

      tiles.forEach(function (tile) {
        const beforeState = getState(tile);
        GlobeSurfaceTile.processStateMachine(
          tile,
          that.frameState,
          that.terrainProvider,
          that.imageryLayerCollection,
        );
        const afterState = getState(tile);
        changed =
          changed ||
          tile.data.terrainState === TerrainState.RECEIVING ||
          tile.data.terrainState === TerrainState.TRANSFORMING ||
          !statesAreSame(beforeState, afterState);
      });

      if (!changed || iterations >= maxIterations) {
        resolve(iterations);
      } else {
        setTimeout(next, 0);
      }
    }

    next();
  });