i dont know how to do this

src/engine/voxel/index.js

@@ -1,6 +1,6 @@
 import { Mesh } from '../mesh'
 import { Node, MeshInstance } from '../components'
-import { addv3 } from '../utility'
+import { addv3, mulv3 } from '../utility'
 
 const FACE_VERTEX = [
   // Bottom
@@ -334,6 +334,77 @@ class VoxelMapBlock extends Node {
   }
 }
 
+class VoxelWorld extends Node {
+  constructor (generator, renderDistance = 2, worldSize = 64, blockSize = 8, chunkSize = 16) {
+    super([0.0, 0.0, 0.0])
+    this.generator = generator
+    this.renderDistance = renderDistance
+    this.generator = generator
+    this.worldSize = worldSize
+    this.blockSize = blockSize
+    this.chunkSize = chunkSize
+    this.blocks = {}
+    this.mapblockqueue = []
+  }
+
+  queueMapblock (pos) {
+    this.mapblockqueue.push(pos)
+  }
+
+  getBlock (x, y, z) {
+    if (!this.blocks[x] || !this.blocks[x][z] || !this.blocks[x][z][y]) return null
+    return this.blocks[x][z][y]
+  }
+
+  update (gl, cam, dt) {
+    // Generate queued mapblocks before adding new ones to queue
+    if (this.mapblockqueue.length) {
+      let leftover = []
+      let generated = false
+      for (let i in this.mapblockqueue) {
+        let pos = this.mapblockqueue[i]
+        let check = this.getBlock(pos[0], pos[1], pos[2])
+
+        if (generated || check) {
+          leftover.push(pos)
+          continue
+        }
+
+        let absPos = mulv3(pos, this.blockSize * (this.chunkSize / 2))
+        let block = new VoxelMapBlock(absPos, this.chunkSize, this.blockSize)
+        block.generate(this.generator)
+
+        if (!this.blocks[pos[0]]) this.blocks[pos[0]] = {}
+        if (!this.blocks[pos[0]][pos[2]]) this.blocks[pos[0]][pos[2]] = {}
+        if (!this.blocks[pos[0]][pos[2]][pos[1]]) this.blocks[pos[0]][pos[2]][pos[1]] = {}
+
+        this.blocks[pos[0]][pos[2]][pos[1]] = block
+        this.addChild(block)
+        generated = true
+      }
+      this.mapblockqueue = leftover
+      return
+    }
+
+    // Calculate a fixed grid
+    let total = this.blockSize * this.chunkSize
+    let slgrid = [Math.floor(cam.pos[0] / total), Math.floor(cam.pos[1] / total), Math.floor(cam.pos[2] / total)]
+
+    for (let x = slgrid[0] - this.renderDistance / 2; x < slgrid[0] + this.renderDistance / 2; x++) {
+      for (let z = slgrid[1] - this.renderDistance / 2; z < slgrid[1] + this.renderDistance / 2; z++) {
+        for (let y = slgrid[2] - this.renderDistance / 2; y < slgrid[2] + this.renderDistance / 2; y++) {
+          if (this.getBlock(x, y, z)) continue
+          this.queueMapblock([x, y, z])
+        }
+      }
+    }
+
+    for (let i in this.children) {
+      this.children[i].update(gl, dt)
+    }
+  }
+}
+
 class VoxelGenerator {
   constructor (noise, material, groundHeight = 64) {
     this.material = material
@@ -364,4 +435,4 @@ class VoxelGenerator {
   }
 }
 
-export { VoxelGenerator, Voxel, VoxelChunk, VoxelMapBlock }
+export { VoxelGenerator, Voxel, VoxelChunk, VoxelMapBlock, VoxelWorld }

src/index.js

@@ -13,7 +13,7 @@ import { SimplexHeightMap } from './engine/components/terrain/heightmap'
 import { Material, Texture } from './engine/mesh/material'
 import { GUIRenderer, GUIImage, Dim4 } from './engine/gui'
 import { FontRenderer, GUIText, Font } from './engine/gui/font'
-import { VoxelMapBlock, VoxelGenerator } from './engine/voxel'
+import { VoxelWorld, VoxelGenerator } from './engine/voxel'
 
 let game = Engine
 let env = new Environment()
@@ -22,10 +22,10 @@ let fnt = new FontRenderer()
 let prt = new ParticleRenderer()
 
 async function pipeline () {
-// let entity = await loadMesh(game.gl, 'test')
+  let entity = await loadMesh(game.gl, 'test')
   let terrainShader = await game.shaders.createShaderFromFiles(game.gl, 'terrain', false)
   let skyboxShader = await game.shaders.createShaderFromFiles(game.gl, 'skybox', false)
-/*
+
   entity.setRotation([0.0, 0.0, -90.0])
 
   // Initialize water
@@ -34,7 +34,6 @@ async function pipeline () {
   await waterRenderer.initialize(game)
   await waterRenderer.useDUDVMap(game.gl, 'dudv')
   await waterRenderer.useNormalMap(game.gl, 'normalmap')
-*/
   let arialFont = await Font.fromFile('arial')
   await arialFont.loadTextures(game.gl)
 
@@ -59,14 +58,14 @@ async function pipeline () {
 
   // Create a height map based on OpenSimplex noise
   let hmap = new SimplexHeightMap(1, 1, 256, 50)
-/*
+
   // Create a terrain instance
   let terrain = new LODTerrain([0.0, 0.0, 0.0], 1024, 1024, 850, 4)
-*/
+
   // Terrain material
   let material = new Material(['grass-1024.jpg'])
   await material.loadTextures(game.gl)
-/*
+
   // test code
   for (let i in entity.children) {
     entity.children[i].mesh.material = material
@@ -75,7 +74,7 @@ async function pipeline () {
   // Set generator and material for terrain
   terrain.setGenerator(hmap)
   terrain.setMaterial(material)
-*/
+
   // Create and initialize the camera
   let cam = new Camera([-16.0, 25.0, -16.0], [0.8, -0.6, 0.0])
   cam.updateProjection(game.gl)
@@ -87,9 +86,8 @@ async function pipeline () {
   await skybox.initialize(game.gl)
 
   // Voxel test
-  let voxgen = new VoxelGenerator(hmap, material)
-  let block = new VoxelMapBlock([0.0, 0.0, 0.0])
-  block.generate(voxgen)
+  // let voxgen = new VoxelGenerator(hmap, material)
+  // let block = new VoxelWorld(voxgen)
 
   // Update function for camera and terrain
   let fpsTimer = 0
@@ -125,15 +123,15 @@ async function pipeline () {
     }
 
     // Update detail levels
-    // terrain.update(game.gl, cam)
-    // terrain.updateLODMesh(game.gl)
+    terrain.update(game.gl, cam)
+    terrain.updateLODMesh(game.gl)
 
     // Ripple water
-    // waterRenderer.update(dt)
+    waterRenderer.update(dt)
 
     // Update voxel chunk
-    voxgen.update(dt)
-    block.update(game.gl, dt)
+    // voxgen.update(dt)
+    // block.update(game.gl, cam, dt)
 
     // Set text to FPS
     fpsTimer++
@@ -157,21 +155,21 @@ async function pipeline () {
     // Set the viewport uniforms
     cam.draw(gl, terrainShader)
     // Draw terrain
-    // terrain.draw(gl, terrainShader)
+    terrain.draw(gl, terrainShader)
 
     // entity.draw(gl, terrainShader)
 
-    block.draw(gl, terrainShader)
+    // block.draw(gl, terrainShader)
   }
 
   // Render function for the triangle
   game.addRenderFunction(function (gl) {
-    // waterRenderer.reflect(gl, cam, drawEverything)
-    // waterRenderer.refract(gl, cam, drawEverything)
+    waterRenderer.reflect(gl, cam, drawEverything)
+    waterRenderer.refract(gl, cam, drawEverything)
 
     drawEverything(gl)
 
-    // waterRenderer.draw(gl, [water], cam, env.sun)
+    waterRenderer.draw(gl, [water], cam, env.sun)
 
     // Draw particles
     particleSystem.draw(gl, cam)