import {Extent} from "../Extent";
import {EPSG3857} from "../proj/EPSG3857";
import {EPSG4326} from "../proj/EPSG4326";
import {binaryInsert, getMatrixSubArray32, getMatrixSubArray64, getMatrixSubArrayBoundsExt} from "../utils/shared";
import {LonLat} from "../LonLat";
import {MAX, MIN} from "../math";
import {MAX_LAT} from "../mercator";
import {Planet} from "../scene/Planet";
import {Segment} from "../segment/Segment";
import {Vec2} from "../math/Vec2";
import {Vec3} from "../math/Vec3";
import {
E,
MAX_RENDERED_NODES,
N,
NE,
NEIGHBOUR,
NOTRENDERING,
NW,
OPPART,
OPSIDE,
PARTOFFSET,
RENDERING,
S,
SE,
SW,
W,
WALKTHROUGH
} from "./quadTree";
import {
TILEGROUP_COMMON,
TILEGROUP_NORTH,
TILEGROUP_SOUTH
} from "../segment/Segment";
import {PlanetCamera} from "../camera/PlanetCamera";
let _tempHigh = new Vec3(),
_tempLow = new Vec3();
const _vertOrder: Vec2[] = [
new Vec2(0, 0), new Vec2(1, 0),
new Vec2(0, 1), new Vec2(1, 1)
];
const _neGridSize = Math.sqrt(_vertOrder.length) - 1;
type BoundsType = {
xmin: number; ymin: number; zmin: number;
xmax: number; ymax: number; zmax: number
};
let BOUNDS: BoundsType = {
xmin: 0.0, ymin: 0.0, zmin: 0.0,
xmax: 0.0, ymax: 0.0, zmax: 0.0
};
let __staticCounter = 0;
/**
* Quad tree planet segment node.
* @constructor
* @param {Segment} segmentPrototype - Planet segment node constructor.
* @param {Planet} planet - Planet scene instance.
* @param {number} partId - NorthEast, SouthWest etc.
* @param {Node} parent - Parent of this node.
* @param {number} id - Tree node identifier (id * 4 + 1);
* @param {number} tileZoom - Deep index of the quad tree.
* @param {Extent} extent - Planet segment extent.
*/
class Node {
public __id: number;
public SegmentPrototype: typeof Segment;
public planet: Planet;
public parentNode: Node | null;
public partId: number;
public nodeId: number;
public state: number | null;
public prevState: number | null;
public appliedTerrainNodeId: number;
public sideSizeLog2: [number, number, number, number];
public ready: boolean;
public neighbors: [Node[], Node[], Node[], Node[]];
public equalizedSideWithNodeId: number[];
public nodes: [Node, Node, Node, Node] | [];
public segment: Segment;
public _cameraInside: boolean;
public inFrustum: number;
public _fadingNodes: Node[];
constructor(
SegmentPrototype: typeof Segment,
planet: Planet,
partId: number,
parent: Node | null,
tileZoom: number,
extent: Extent
) {
planet._createdNodesCount++;
this.__id = __staticCounter++;
this.SegmentPrototype = SegmentPrototype;
this.planet = planet;
this.parentNode = parent;
this.partId = partId;
this.nodeId = partId + (parent ? parent.nodeId * 4 + 1 : 0);
this.state = null;
this.prevState = null;
this.appliedTerrainNodeId = -1;
this.sideSizeLog2 = [0, 0, 0, 0];
this.ready = false;
this.neighbors = [[], [], [], []];
this.equalizedSideWithNodeId = [this.nodeId, this.nodeId, this.nodeId, this.nodeId];
// @todo: this.nodes = null;
this.nodes = [];
this.segment = new SegmentPrototype(this, planet, tileZoom, extent);
this._cameraInside = false;
this.inFrustum = 0;
this._fadingNodes = [];
this.createBounds();
}
public createChildrenNodes() {
this.ready = true;
const p = this.planet;
const ps = this.segment;
const ext = ps._extent;
const z = ps.tileZoom + 1;
const size_x = ext.getWidth() * 0.5;
const size_y = ext.getHeight() * 0.5;
const ne = ext.northEast;
const sw = ext.southWest;
const c = new LonLat(sw.lon + size_x, sw.lat + size_y);
const nd = this.nodes;
nd[NW] = new Node(this.SegmentPrototype, p, NW, this, z, new Extent(new LonLat(sw.lon, sw.lat + size_y), new LonLat(sw.lon + size_x, ne.lat)));
nd[NE] = new Node(this.SegmentPrototype, p, NE, this, z, new Extent(c, new LonLat(ne.lon, ne.lat)));
nd[SW] = new Node(this.SegmentPrototype, p, SW, this, z, new Extent(new LonLat(sw.lon, sw.lat), c));
nd[SE] = new Node(this.SegmentPrototype, p, SE, this, z, new Extent(new LonLat(sw.lon + size_x, sw.lat), new LonLat(ne.lon, sw.lat + size_y)));
}
public createBounds() {
let seg = this.segment;
seg._setExtentLonLat();
if (seg.tileZoom === 0) {
seg.setBoundingSphere(0.0, 0.0, 0.0, new Vec3(0.0, 0.0, seg.planet.ellipsoid.equatorialSize));
} else if (seg.tileZoom < seg.planet.terrain!.minZoom) {
seg.createBoundsByExtent();
} else {
seg.createBoundsByParent();
}
let x = seg.bsphere.center.x,
y = seg.bsphere.center.y,
z = seg.bsphere.center.z;
let length = 1.0 / Math.sqrt(x * x + y * y + z * z);
seg.centerNormal.x = x * length;
seg.centerNormal.y = y * length;
seg.centerNormal.z = z * length;
}
public getState(): number | null {
if (this.state === -1) {
return this.state;
}
let pn = this.parentNode;
while (pn) {
if (pn.state !== WALKTHROUGH) {
return NOTRENDERING;
}
pn = pn.parentNode;
}
return this.state;
}
/**
* Returns the same deep existent neighbour node.
* @public
* @param {number} side - Neighbour side index e.g. og.quadTree.N, og.quadTree.W etc.
* @returns {Node} -
*/
public getEqualNeighbor(side: number): Node | undefined {
let pn: Node = this;
let part = NEIGHBOUR[side][pn.partId];
if (part !== -1) {
// (!) it means that we would never ask to get head node neighbors
return pn.parentNode!.nodes[part];
} else {
let pathId = [];
while (pn.parentNode) {
pathId.push(pn.partId);
part = NEIGHBOUR[side][pn.partId];
pn = pn.parentNode;
if (part !== -1) {
let i = pathId.length;
side = OPSIDE[side];
while (pn && i--) {
part = OPPART[side][pathId[i]];
pn = pn.nodes[part];
}
return pn;
}
}
}
}
// public isBrother(node: Node): boolean {
// return !(this.parentNode || node.parentNode) || (this.parentNode!.nodeId === node.parentNode!.nodeId);
// }
public traverseNodes(cam: PlanetCamera, maxZoom?: number | null, terrainReadySegment?: Segment | null, stopLoading?: boolean, zoomPassNode?: Node) {
if (!this.ready) {
this.createChildrenNodes();
}
let n = this.nodes;
n[0]!.renderTree(cam, maxZoom, terrainReadySegment, stopLoading, zoomPassNode);
n[1]!.renderTree(cam, maxZoom, terrainReadySegment, stopLoading, zoomPassNode);
n[2]!.renderTree(cam, maxZoom, terrainReadySegment, stopLoading, zoomPassNode);
n[3]!.renderTree(cam, maxZoom, terrainReadySegment, stopLoading, zoomPassNode);
}
public renderTree(cam: PlanetCamera, maxZoom?: number | null, terrainReadySegment?: Segment | null, stopLoading?: boolean, zoomPassNode?: Node) {
if (this.planet._renderedNodes.length >= MAX_RENDERED_NODES) {
return;
}
if (!maxZoom || zoomPassNode && this.segment.tileZoom > zoomPassNode.segment.tileZoom) {
this.prevState = this.state;
}
this.state = WALKTHROUGH;
this.clearNeighbors();
let seg = this.segment,
planet = this.planet;
this._cameraInside = false;
// Search a node which the camera is flying over.
if (!this.parentNode || this.parentNode._cameraInside) {
let inside;
if (Math.abs(cam._lonLat.lat) <= MAX_LAT && seg._projection.id === EPSG3857.id) {
inside = seg._extent.isInside(cam._lonLatMerc);
} else if (seg._projection.id === EPSG4326.id) {
inside = seg._extent.isInside(cam._lonLat);
}
if (inside) {
cam._insideSegment = seg;
this._cameraInside = true;
}
}
this.inFrustum = 0;
let frustums = cam.frustums, numFrustums = frustums.length;
if (seg.tileZoom < 6) {
for (let i = 0; i < numFrustums; i++) {
if (frustums[i].containsSphere(seg.bsphere)) {
this.inFrustum |= 1 << i;
}
}
} else {
let commonFrustumFlag = 1 << (numFrustums - 1 - 1);
for (let i = 0; commonFrustumFlag && i < numFrustums; i++) {
if (seg.terrainReady) {
if (frustums[i].containsBox(seg.bbox)) {
commonFrustumFlag >>= 1;
this.inFrustum |= 1 << i;
}
} else {
if (frustums[i].containsSphere(seg.bsphere)) {
commonFrustumFlag >>= 1;
this.inFrustum |= 1 << i;
}
}
}
}
if (this.inFrustum || this._cameraInside || seg.tileZoom < 3) {
let h = Math.abs(cam._lonLat.height);
let horizonDist = cam.eye.length2() - this.planet.ellipsoid.polarSizeSqr;
horizonDist = horizonDist < 106876472875.63281 * planet._heightFactor ? 106876472875.63281 * planet._heightFactor : horizonDist;
let altVis = seg.tileZoom < 2 || seg.tileZoom > 19 ||
/* Could be replaced with camera frustum always looking down check,
and not to go througn nodes from the oppositeside of the globe*/
(seg.tileZoom < 6 && !seg.terrainReady);
altVis = altVis ||
cam.eye.distance2(seg._sw) < horizonDist ||
cam.eye.distance2(seg._nw) < horizonDist ||
cam.eye.distance2(seg._ne) < horizonDist ||
cam.eye.distance2(seg._se) < horizonDist;
if ((this.inFrustum && (altVis || h > 10000.0)) || this._cameraInside) {
//@todo: replace to the strategy
seg._collectVisibleNodes();
}
if (seg.tileZoom < 2) {
this.traverseNodes(cam, maxZoom, terrainReadySegment, stopLoading, zoomPassNode);
} else if (
seg.terrainReady && (!maxZoom && cam.projectedSize(seg.bsphere.center, seg._plainRadius) < planet.lodSize
|| maxZoom && ((seg.tileZoom === maxZoom) || !altVis))
) {
if (altVis) {
seg.passReady = true;
this.renderNode(this.inFrustum, !this.inFrustum, terrainReadySegment, stopLoading);
} else {
this.state = NOTRENDERING;
}
} else if (seg.terrainReady && seg.checkZoom() && (!maxZoom || cam.projectedSize(seg.bsphere.center, seg.bsphere.radius) > this.planet._maxLodSize)) {
this.traverseNodes(cam, maxZoom, seg, stopLoading, zoomPassNode);
} else if (altVis) {
seg.passReady = maxZoom ? seg.terrainReady : false;
this.renderNode(this.inFrustum, !this.inFrustum, terrainReadySegment, stopLoading);
} else {
this.state = NOTRENDERING;
}
} else {
this.state = NOTRENDERING;
}
}
public renderNode(inFrustum: number, onlyTerrain?: boolean, terrainReadySegment?: Segment | null, stopLoading?: boolean) {
let seg = this.segment;
// Create and load terrain data
if (!seg.terrainReady) {
if (!seg.initialized) {
seg.initialize();
}
this.whileTerrainLoading(terrainReadySegment);
if (!seg.plainProcessing) {
seg.createPlainSegmentAsync();
}
if (seg.plainReady && !stopLoading) {
seg.loadTerrain();
}
}
// Create normal map texture
if (seg.planet.lightEnabled && !seg.normalMapReady) {
this.whileNormalMapCreating();
}
if (onlyTerrain) {
this.state = -1;
return;
}
// Calculate minimal and maximal zoom index on the screen
if (!this._cameraInside && seg.tileZoom > this.planet.maxCurrZoom) {
this.planet.maxCurrZoom = seg.tileZoom;
}
if (seg.tileZoom < this.planet.minCurrZoom) {
this.planet.minCurrZoom = seg.tileZoom;
}
seg._addViewExtent();
// Finally this node proceeds to rendering.
this.addToRender(inFrustum);
}
public childrenPrevStateEquals(state: number): boolean {
let n = this.nodes;
return n.length === 4 && n[0].prevState === state && n[1].prevState === state && n[2].prevState === state && n[3].prevState === state;
}
public isFading(): boolean {
let n = this.nodes;
return this.state === WALKTHROUGH && this.segment._transitionOpacity > 0.0 && n.length === 4 && (n[0].state === RENDERING && n[1].state === RENDERING && n[2].state === RENDERING && n[3].state === RENDERING);
}
public _collectFadingNodes() {
if (this.segment.tileZoom < 3) {
this.segment._transitionOpacity = 1.0;
return;
}
// Light up the node
if (this.prevState !== RENDERING) {
// means that the node is lighting up
this.segment._transitionOpacity = 0.0;
// store fading nodes, could be a parent or children nodes
this._fadingNodes = [];
let timestamp = window.performance.now();
this.segment._transitionTimestamp = timestamp;
if (this.parentNode) {
// Parent was visible the last frame, make the parent fading
if (this.parentNode.prevState === RENDERING) {
let pn: Node | null = this.parentNode.parentNode;
while (pn) {
if (pn.isFading()) {
for (let i = 0; i < pn.nodes.length; i++) {
pn.nodes[i].segment._transitionOpacity = 1.0;
pn.nodes[i]._fadingNodes = [];
}
pn.segment._transitionOpacity = 0.0;
break;
}
pn = pn.parentNode;
}
// not sure it's necessary here
this.parentNode.whileTerrainLoading();
this._fadingNodes.push(this.parentNode);
this.parentNode.segment._transitionOpacity = 2.0;
this.parentNode.segment._transitionTimestamp = timestamp;
} else {
// Check if the children were visible last frame, and make them fading
if (this.segment.childrenInitialized() && this.childrenPrevStateEquals(RENDERING)) {
for (let i = 0; i < this.nodes.length; i++) {
let ni = this.nodes[i];
// not sure it's necessary here
ni.whileTerrainLoading();
this._fadingNodes.push(ni);
ni.segment._transitionOpacity = 2.0;
ni.segment._transitionTimestamp = timestamp;
ni.prevState = ni.state;
ni.state = NOTRENDERING;
}
}
}
}
}
}
public clearNeighbors() {
//this.sideSizeLog2[0] = this.sideSizeLog2[1] = this.sideSizeLog2[2] = this.sideSizeLog2[3] = Math.log2(this.segment.gridSize);
if (this.neighbors) {
// @ts-ignore
this.neighbors[0] = this.neighbors[1] = this.neighbors[2] = this.neighbors[3] = null;
this.neighbors[0] = [];
this.neighbors[1] = [];
this.neighbors[2] = [];
this.neighbors[3] = [];
}
}
public _refreshTransitionOpacity() {
if (this._fadingNodes.length === 0) {
this.segment._transitionOpacity = 1.0;
} else {
if (this._fadingNodes.length === 4 && !this.childrenPrevStateEquals(RENDERING)) {
this.segment._transitionOpacity = 1.0;
this._fadingNodes = [];
} else {
// Looks like a bug fix for suddenly empty spaces
for (let i = 0; i < this._fadingNodes.length; i++) {
if (this.segment._transitionOpacity < 1.0 && this._fadingNodes[i].segment._transitionOpacity === 0) {
this._fadingNodes[i].segment._transitionOpacity = 0;
this.segment._transitionOpacity = 1.0;
}
}
this.segment.increaseTransitionOpacity();
}
}
}
/**
* Picking up current node to render processing.
* @public
*/
public addToRender(inFrustum: number) {
this.state = RENDERING;
let nodes = this.planet._renderedNodes;
//@ts-ignore
if (!this.planet._transitionOpacityEnabled) {
this.getRenderedNodesNeighbors(nodes);
nodes.push(this);
} else {
//@todo: check if it's possible to get rid of the sorting when using breadth traverse tree
binaryInsert(nodes, this, (a: Node, b: Node) => {
return a.segment.tileZoom - b.segment.tileZoom;
});
}
if (!this.segment.terrainReady) {
this.planet._renderCompleted = false;
this.planet._terrainCompleted = false;
}
let k = 0,
rf = this.planet._renderedNodesInFrustum;
while (inFrustum) {
if (inFrustum & 1) {
rf[k].push(this);
}
k++;
inFrustum >>= 1;
}
}
public applyNeighbor(node: Node, side: number) {
const opcs = OPSIDE[side];
if (this.neighbors[side].length === 0 || node.neighbors[opcs].length === 0) {
const ap = this.segment;
const bp = node.segment;
const ld = ap.gridSize / (bp.gridSize * Math.pow(2, bp.tileZoom - ap.tileZoom));
let cs_size = ap.gridSize,
opcs_size = bp.gridSize;
if (ld > 1) {
cs_size = Math.ceil(ap.gridSize / ld);
opcs_size = bp.gridSize;
} else if (ld < 1) {
cs_size = ap.gridSize;
opcs_size = Math.ceil(bp.gridSize * ld);
}
this.sideSizeLog2[side] = Math.log2(cs_size);
node.sideSizeLog2[opcs] = Math.log2(opcs_size);
}
//@todo: fix dupe neighbors
this.neighbors[side].push(node);
node.neighbors[opcs].push(this);
}
/**
* Searching current node for its neighbours.
* @public
*/
public getRenderedNodesNeighbors(nodes: Node[]) {
for (let i = nodes.length - 1; i >= 0; --i) {
let ni = nodes[i];
let cs = this.getCommonSide(ni);
if (cs !== -1) {
this.applyNeighbor(ni, cs);
}
}
}
/**
* Checking if current node has a common side with input node and return side index N, E, S or W. Otherwise returns -1.
* @param {Node} node - Input node
* @returns {number} - Node side index
*/
public getCommonSide(node: Node): number {
const as = this.segment;
const bs = node.segment;
if (as.tileZoom === bs.tileZoom && as._tileGroup === bs._tileGroup) {
return as.getNeighborSide(bs);
} else {
const a = as._extentLonLat;
const b = bs._extentLonLat;
let a_ne = a.northEast, a_sw = a.southWest,
b_ne = b.northEast, b_sw = b.southWest;
let a_ne_lon = a_ne.lon, a_ne_lat = a_ne.lat,
a_sw_lon = a_sw.lon, a_sw_lat = a_sw.lat,
b_ne_lon = b_ne.lon, b_ne_lat = b_ne.lat,
b_sw_lon = b_sw.lon, b_sw_lat = b_sw.lat;
if (as._tileGroup === bs._tileGroup) {
if (a_ne_lon === b_sw_lon && ((a_ne_lat <= b_ne_lat && a_sw_lat >= b_sw_lat) || (a_ne_lat >= b_ne_lat && a_sw_lat <= b_sw_lat))) {
return E;
} else if (a_sw_lon === b_ne_lon && ((a_ne_lat <= b_ne_lat && a_sw_lat >= b_sw_lat) || (a_ne_lat >= b_ne_lat && a_sw_lat <= b_sw_lat))) {
return W;
} else if (a_ne_lat === b_sw_lat && ((a_sw_lon >= b_sw_lon && a_ne_lon <= b_ne_lon) || (a_sw_lon <= b_sw_lon && a_ne_lon >= b_ne_lon))) {
return N;
} else if (a_sw_lat === b_ne_lat && ((a_sw_lon >= b_sw_lon && a_ne_lon <= b_ne_lon) || (a_sw_lon <= b_sw_lon && a_ne_lon >= b_ne_lon))) {
return S;
}
// World edge 180 to -180
else if (bs.tileX === 0 && b_sw_lon === -a_ne_lon && ((a_ne_lat <= b_ne_lat && a_sw_lat >= b_sw_lat) || (a_ne_lat >= b_ne_lat && a_sw_lat <= b_sw_lat))) {
return E;
} else if (as.tileX === 0 && a_sw_lon === -b_ne_lon && ((a_ne_lat <= b_ne_lat && a_sw_lat >= b_sw_lat) || (a_ne_lat >= b_ne_lat && a_sw_lat <= b_sw_lat))) {
return W;
}
}
// @todo: replace to the default strategy
if (as._tileGroup === TILEGROUP_COMMON && bs._tileGroup === TILEGROUP_NORTH && as.tileY === 0 && bs.tileY === bs.powTileZoom/*Math.pow(2, bs.tileZoom)*/ - 1 && ((a_sw_lon >= b_sw_lon && a_ne_lon <= b_ne_lon) || (a_sw_lon <= b_sw_lon && a_ne_lon >= b_ne_lon))) {
return N;
} else if (as._tileGroup === TILEGROUP_COMMON && bs._tileGroup === TILEGROUP_SOUTH && as.tileY === as.powTileZoom/*Math.pow(2, as.tileZoom)*/ - 1 && bs.tileY === 0 && ((a_sw_lon >= b_sw_lon && a_ne_lon <= b_ne_lon) || (a_sw_lon <= b_sw_lon && a_ne_lon >= b_ne_lon))) {
return S;
} else if (as._tileGroup === TILEGROUP_SOUTH && bs._tileGroup === TILEGROUP_COMMON && as.tileY === 0 && bs.tileY === bs.powTileZoom/*Math.pow(2, bs.tileZoom)*/ - 1 && ((a_sw_lon >= b_sw_lon && a_ne_lon <= b_ne_lon) || (a_sw_lon <= b_sw_lon && a_ne_lon >= b_ne_lon))) {
return N;
} else if (as._tileGroup === TILEGROUP_NORTH && bs._tileGroup === TILEGROUP_COMMON && as.tileY === as.powTileZoom/*Math.pow(2, as.tileZoom)*/ - 1 && bs.tileY === 0 && ((a_sw_lon >= b_sw_lon && a_ne_lon <= b_ne_lon) || (a_sw_lon <= b_sw_lon && a_ne_lon >= b_ne_lon))) {
return S;
}
}
return -1;
}
public whileNormalMapCreating() {
const seg = this.segment;
if (!seg.terrainIsLoading && seg.terrainExists && !seg._inTheQueue) {
seg.planet._normalMapCreator.queue(seg);
}
let pn: Node = this;
while (pn.parentNode && !pn.segment.normalMapReady) {
pn = pn.parentNode;
}
const dZ2 = 2 << (seg.tileZoom - pn.segment.tileZoom - 1);
seg.normalMapTexture = pn.segment.normalMapTexture;
seg.normalMapTextureBias[0] = seg.tileX - pn.segment.tileX * dZ2;
seg.normalMapTextureBias[1] = seg.tileY - pn.segment.tileY * dZ2;
seg.normalMapTextureBias[2] = 1.0 / dZ2;
}
public whileTerrainLoading(terrainReadySegment?: Segment | null) {
const seg = this.segment;
let pn: Node = this;
if (terrainReadySegment && terrainReadySegment.terrainReady) {
pn = terrainReadySegment.node;
} else {
while (pn.parentNode && !pn.segment.terrainReady) {
pn = pn.parentNode;
}
}
if (pn.segment.terrainReady && this.appliedTerrainNodeId !== pn.nodeId) {
let dZ2 = 2 << (seg.tileZoom - pn.segment.tileZoom - 1), // 2 * Math.pow(2, dZ-1)
offsetX = seg.tileX - pn.segment.tileX * dZ2,
offsetY = seg.tileY - pn.segment.tileY * dZ2;
const pseg = pn.segment;
let tempVertices: Float64Array,
tempVerticesHigh: Float32Array,
tempVerticesLow: Float32Array,
noDataVertices: Uint8Array;
this.appliedTerrainNodeId = pn.nodeId;
this.equalizedSideWithNodeId[N] = this.equalizedSideWithNodeId[E] = this.equalizedSideWithNodeId[S] = this.equalizedSideWithNodeId[W] = this.appliedTerrainNodeId;
let gridSize = pn.segment.gridSize / dZ2,
gridSizeExt = pn.segment.fileGridSize / dZ2;
BOUNDS.xmin = MAX;
BOUNDS.xmax = MIN;
BOUNDS.ymin = MAX;
BOUNDS.ymax = MIN;
BOUNDS.zmin = MAX;
BOUNDS.zmax = MIN;
if (gridSize >= 1) {
seg.gridSize = gridSize;
let len = (gridSize + 1) * (gridSize + 1) * 3;
tempVertices = new Float64Array(len);
tempVerticesHigh = new Float32Array(len);
tempVerticesLow = new Float32Array(len);
if (pseg.noDataVertices) {
noDataVertices = new Uint8Array(len / 3);
}
getMatrixSubArrayBoundsExt(
pseg.terrainVertices!,
pseg.terrainVerticesHigh!,
pseg.terrainVerticesLow!,
pseg.noDataVertices!,
pseg.gridSize,
gridSize * offsetY,
gridSize * offsetX,
gridSize,
tempVertices,
tempVerticesHigh,
tempVerticesLow,
BOUNDS,
noDataVertices!
);
} else if (gridSizeExt >= 1 && pn.segment.terrainExists) {
seg.gridSize = gridSizeExt;
let len = (gridSizeExt + 1) * (gridSizeExt + 1) * 3;
tempVertices = new Float64Array(len);
tempVerticesHigh = new Float32Array(len);
tempVerticesLow = new Float32Array(len);
if (pseg.noDataVertices) {
noDataVertices = new Uint8Array(len / 3);
}
getMatrixSubArrayBoundsExt(
pseg.normalMapVertices!,
pseg.normalMapVerticesHigh!,
pseg.normalMapVerticesLow!,
pseg.noDataVertices!,
pn.segment.fileGridSize,
gridSizeExt * offsetY,
gridSizeExt * offsetX,
gridSizeExt,
tempVertices,
tempVerticesHigh,
tempVerticesLow,
BOUNDS,
noDataVertices!
);
} else {
seg.gridSize = _neGridSize;
let i0 = Math.floor(gridSize * offsetY),
j0 = Math.floor(gridSize * offsetX);
let bigOne;
if (pseg.gridSize === 1) {
bigOne = pseg.terrainVertices!;
} else {
bigOne = getMatrixSubArray64(pseg.terrainVertices!, pseg.gridSize, i0, j0, 1);
}
let insideSize = 1.0 / gridSize;
let t_i0 = offsetY - insideSize * i0, t_j0 = offsetX - insideSize * j0;
let v_lt = new Vec3(bigOne[0], bigOne[1], bigOne[2]),
v_rb = new Vec3(bigOne[9], bigOne[10], bigOne[11]);
let vn = new Vec3(bigOne[3] - bigOne[0], bigOne[4] - bigOne[1], bigOne[5] - bigOne[2]),
vw = new Vec3(bigOne[6] - bigOne[0], bigOne[7] - bigOne[1], bigOne[8] - bigOne[2]),
ve = new Vec3(bigOne[3] - bigOne[9], bigOne[4] - bigOne[10], bigOne[5] - bigOne[11]),
vs = new Vec3(bigOne[6] - bigOne[9], bigOne[7] - bigOne[10], bigOne[8] - bigOne[11]);
let coords = new Vec3();
tempVertices = new Float64Array(3 * _vertOrder.length);
tempVerticesHigh = new Float32Array(3 * _vertOrder.length);
tempVerticesLow = new Float32Array(3 * _vertOrder.length);
for (let i = 0; i < _vertOrder.length; i++) {
let vi_y = _vertOrder[i].y + t_i0, vi_x = _vertOrder[i].x + t_j0;
let vi_x_is = vi_x * gridSize, vi_y_is = vi_y * gridSize;
if (vi_y + vi_x < insideSize) {
coords = vn.scaleTo(vi_x_is).addA(vw.scaleTo(vi_y_is)).addA(v_lt);
} else {
coords = vs.scaleTo(1 - vi_x_is).addA(ve.scaleTo(1 - vi_y_is)).addA(v_rb);
}
Vec3.doubleToTwoFloats(coords, _tempHigh, _tempLow);
let i3 = i * 3;
tempVertices[i3] = coords.x;
tempVertices[i3 + 1] = coords.y;
tempVertices[i3 + 2] = coords.z;
tempVerticesHigh[i3] = _tempHigh.x;
tempVerticesHigh[i3 + 1] = _tempHigh.y;
tempVerticesHigh[i3 + 2] = _tempHigh.z;
tempVerticesLow[i3] = _tempLow.x;
tempVerticesLow[i3 + 1] = _tempLow.y;
tempVerticesLow[i3 + 2] = _tempLow.z;
if (coords.x < BOUNDS.xmin) BOUNDS.xmin = coords.x;
if (coords.x > BOUNDS.xmax) BOUNDS.xmax = coords.x;
if (coords.y < BOUNDS.ymin) BOUNDS.ymin = coords.y;
if (coords.y > BOUNDS.ymax) BOUNDS.ymax = coords.y;
if (coords.z < BOUNDS.zmin) BOUNDS.zmin = coords.z;
if (coords.z > BOUNDS.zmax) BOUNDS.zmax = coords.z;
}
}
seg.readyToEngage = true;
seg.terrainVertices = tempVertices;
seg.terrainVerticesHigh = tempVerticesHigh;
seg.terrainVerticesLow = tempVerticesLow;
seg.tempVertices = tempVertices;
seg.tempVerticesHigh = tempVerticesHigh;
seg.tempVerticesLow = tempVerticesLow;
seg.noDataVertices = noDataVertices!;
seg.setBoundingVolume(BOUNDS.xmin, BOUNDS.ymin, BOUNDS.zmin, BOUNDS.xmax, BOUNDS.ymax, BOUNDS.zmax);
if (seg.tileZoom > seg.planet.terrain!.maxZoom) {
if (pn.segment.tileZoom >= seg.planet.terrain!.maxZoom) {
seg._plainRadius = pn.segment._plainRadius / dZ2;
seg.terrainReady = true;
seg.terrainIsLoading = false;
seg.terrainVertices = tempVertices;
seg.terrainVerticesHigh = tempVerticesHigh;
seg.terrainVerticesLow = tempVerticesLow;
seg.passReady = true;
this.appliedTerrainNodeId = this.nodeId;
this.equalizedSideWithNodeId[N] = this.equalizedSideWithNodeId[E] = this.equalizedSideWithNodeId[S] = this.equalizedSideWithNodeId[W] = this.appliedTerrainNodeId;
if (pn.segment.terrainExists) {
seg.normalMapVertices = tempVertices;
seg.fileGridSize = Math.sqrt(tempVertices.length / 3) - 1;
let fgs = Math.sqrt(pseg.normalMapNormals!.length / 3) - 1,
fgsZ = fgs / dZ2;
if (fgs > 1) {
seg.normalMapNormals = getMatrixSubArray32(pseg.normalMapNormals!, fgs, fgsZ * offsetY, fgsZ * offsetX, fgsZ);
} else {
// TODO: interpolation
seg.normalMapNormals = pseg.normalMapNormals;
}
}
}
}
}
}
public destroy() {
this.prevState = this.state = NOTRENDERING;
this.segment.destroySegment();
let n = this.neighbors;
for (let i = 0, len = n.length; i < len; i++) {
let ni = n[i];
if (ni) {
for (let j = 0; j < ni.length; j++) {
let nij = ni[j];
if (nij && nij.neighbors) {
nij.clearNeighbors();
}
}
}
}
// @ts-ignore
this.neighbors = null;
// @ts-ignore
this.parentNode = null;
// @ts-ignore
this.sideSizeLog2 = null;
// @ts-ignore
this.segment = null;
}
public clearTree() {
const state = this.getState();
if (state === NOTRENDERING || state === RENDERING) {
this.destroyBranches();
} else {
for (let i = 0; i < this.nodes.length; i++) {
this.nodes[i] && this.nodes[i].clearTree();
}
}
}
public clearBranches() {
for (let i = 0; i < this.nodes.length; i++) {
this.nodes[i]!.clearBranches();
this.nodes[i]!.segment.deleteMaterials();
}
}
public destroyBranches() {
if (this.ready) {
let nodesToRemove: Node[] = [],
i;
for (i = 0; i < this.nodes.length; i++) {
nodesToRemove[i] = this.nodes[i]!;
}
this.ready = false;
this.nodes = [];
for (i = 0; i < nodesToRemove.length; i++) {
nodesToRemove[i].destroyBranches();
nodesToRemove[i].destroy();
//@ts-ignore
nodesToRemove[i] = null;
}
nodesToRemove.length = 0;
// @ts-ignore
nodesToRemove = null;
}
}
public traverseTree(callback: Function) {
callback(this);
if (this.ready) {
for (let i = 0; i < this.nodes.length; i++) {
this.nodes[i]!.traverseTree(callback);
}
}
}
public getOffsetOppositeNeighbourSide(neighbourNode: Node, side: number): number {
let pNode: Node = this,
neighbourZoom = neighbourNode.segment.tileZoom,
offset = 0;
while (pNode.segment.tileZoom > neighbourZoom) {
offset += PARTOFFSET[pNode.partId][side] / (1 << (pNode.segment.tileZoom - neighbourZoom));
pNode = pNode.parentNode!;
}
return offset;
}
}
export {Node};