<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8" />

<meta name="viewport" content="width=device-width, initial-scale=1.0" />

<title></title></head><body>

<script type="module">

// #region IMPORTS

import Starter, { THREE } from './lib/starter.js';

import Util from './lib/Util.js';

import DynLineMesh from './lib/DynLineMesh.js';

import ShapePointsMesh from './lib/ShapePointsMesh.js';

import IrregularHexGrid from './grid/IrregularHexGrid.js';

// #endregion

// #region MAIN

let App;

let Debug = {};

let Ref = {};

window.addEventListener( "load", async _=>{

App = new Starter( { webgl2:true, grid:true } );

App.setCamera( 0, 50, 9, [0,0.0,0] );

App.add( ( Debug.ln = new DynLineMesh() ) );

App.add( ( Debug.pnt = new ShapePointsMesh() ) );

Debug.ln.position.y = 0.005;

Debug.pnt.position.y = 0.005;

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

const grid = IrregularHexGrid.build( 3, 5, 50, 0.1, 100, 0 );

debugVertices( grid );

// debugEdges( grid );

debugFaces( grid );

debugMesh( grid );

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

App.render();

});

//#endregion

// #region DEBUG

function setRadius( grid, radius ){

for( let v of grid.vertices ) vec3_norm_scale( v.pos, v.pos, radius );

}

function debugVertices( grid ){

for( const e of grid.vertices ) Debug.pnt.add( e.pos, 0x00ff00, 2 );

}

function debugEdges( grid ){

for( const e of grid.iterEdges() ) Debug.ln.add( e.a, e.b, 0x707070 );

}

function debugFaces( grid ){

for( const f of grid.faces ){

let edg = grid.halfEdges[ f.halfEdges[0] ];

let len = f.halfEdges.length;

for( let i=1; i <= len; i++ ){

let ii = i % len;

let nex = grid.halfEdges[ f.halfEdges[ ii ] ];

Debug.ln.add( grid.getVertPos( edg.vertex ), grid.getVertPos( nex.vertex ), 0x707070 );

edg = nex;

}

}

}

function debugMesh( grid ){

const verts = grid.flattenVertices();

const ind = grid.flattenIndices();

const mesh = toMesh( verts, ind );

mesh.position.y = 0.001;

App.add( mesh );

}

function toMesh( verts, idx ){

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

const bGeo = new THREE.BufferGeometry();

bGeo.setAttribute( "position", new THREE.BufferAttribute( new Float32Array( verts ), 3 ) );

if( idx && idx.length > 0 ) bGeo.setIndex( idx );

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

const mat = new THREE.MeshPhongMaterial( { color:0x009999 } ); // ,side:THREE.DoubleSide

const mesh = new THREE.Mesh( bGeo, mat );

return mesh;

}

// #endregion

</script>

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