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/**
* Indicates what happened the last time this tile was visited for selection.
* @private
*/
var TileSelectionResult = {
/**
* There was no selection result, perhaps because the tile wasn't visited
* last frame.
*/
NONE: 0,
/**
* This tile was deemed not visible and culled.
*/
CULLED: 1,
/**
* The tile was selected for rendering.
*/
RENDERED: 2,
/**
* This tile did not meet the required screen-space error and was refined.
*/
REFINED: 3,
/**
* This tile was originally rendered, but it got kicked out of the render list
* in favor of an ancestor because it is not yet renderable.
*/
RENDERED_AND_KICKED: 2 | 4,
/**
* This tile was originally refined, but its rendered descendants got kicked out of the
* render list in favor of an ancestor because it is not yet renderable.
*/
REFINED_AND_KICKED: 3 | 4,
/**
* This tile was culled because it was not visible, but it still needs to be loaded
* and any heights on it need to be updated because the camera's position or the
* camera's reference frame's origin falls inside this tile. Loading this tile
* could affect the position of the camera if the camera is currently below
* terrain or if it is tracking an object whose height is referenced to terrain.
* And a change in the camera position may, in turn, affect what is culled.
*/
CULLED_BUT_NEEDED: 1 | 8,
/**
* Determines if a selection result indicates that this tile or its descendants were
* kicked from the render list. In other words, if it is <code>RENDERED_AND_KICKED</code>
* or <code>REFINED_AND_KICKED</code>.
*
* @param {TileSelectionResult} value The selection result to test.
* @returns {Boolean} true if the tile was kicked, no matter if it was originally rendered or refined.
*/
wasKicked: function (value) {
return value >= TileSelectionResult.RENDERED_AND_KICKED;
},
/**
* Determines the original selection result prior to being kicked or CULLED_BUT_NEEDED.
* If the tile wasn't kicked or CULLED_BUT_NEEDED, the original value is returned.
* @param {TileSelectionResult} value The selection result.
* @returns {TileSelectionResult} The original selection result prior to kicking.
*/
originalResult: function (value) {
return value & 3;
},
/**
* Converts this selection result to a kick.
* @param {TileSelectionResult} value The original selection result.
* @returns {TileSelectionResult} The kicked form of the selection result.
*/
kick: function (value) {
return value | 4;
},
};
export default TileSelectionResult;