From cbcfb8bedf009d15d5f03b567879100a5735af68 Mon Sep 17 00:00:00 2001
From: Florian Sylvain <floriansylvain@mailo.com>
Date: Mon, 10 Jun 2024 14:03:08 +0200
Subject: [PATCH] feat: chunks WIP

---
 src/chunk.ts | 37 ++++++++++++++++++++++---------------
 src/main.ts  | 39 +++++++++++++++++++++++++++------------
 2 files changed, 49 insertions(+), 27 deletions(-)

diff --git a/src/chunk.ts b/src/chunk.ts
index 24ed2f5..23af92d 100644
--- a/src/chunk.ts
+++ b/src/chunk.ts
@@ -16,36 +16,43 @@ interface BlockData {
 }
 
 export default class Chunk {
+	position: Vector3
 	chunk: BlockData[]
 	chunkSet: Set<string>
 	radius: number
 	textures: { [name: string]: Texture[] }
 	faces: { [key: string]: Face[] }
 
-	constructor(radius: number, textures: { [name: string]: Texture[] }) {
+	constructor(
+		radius: number,
+		textures: { [name: string]: Texture[] },
+		position: Vector3
+	) {
+		this.position = position
 		this.chunk = []
 		this.chunkSet = new Set<string>()
 		this.radius = radius
 		this.textures = textures
 		this.faces = {}
-		this.generateChunk()
-		this.initializeFaces()
 	}
 
-	generateChunk() {
-		for (let i = 0; i < this.radius; i++) {
-			for (let j = 0; j < this.radius; j++) {
-				const max = Math.ceil(Math.sin(i / 30) * 10 + Math.cos(j / 30) * 10)
-				for (let k = -16; k <= max; k++) {
-					const position = new Vector3(i, k, j)
-					let textureName = "stone"
-					if (k === max) textureName = "grass"
-					else if (k > max - 6) textureName = "dirt"
-					this.chunk.push({ position, textureName })
-					this.chunkSet.add(position.toArray().toString())
+	async generateChunk() {
+		return new Promise((resolve) => {
+			for (let i = this.position.x; i < this.radius + this.position.x; i++) {
+				for (let j = this.position.z; j < this.radius + this.position.z; j++) {
+					const max = Math.ceil(Math.sin(i / 30) * 10 + Math.cos(j / 30) * 10)
+					for (let k = -16; k <= max; k++) {
+						const position = new Vector3(i, k, j)
+						let textureName = "stone"
+						if (k === max) textureName = "grass"
+						else if (k > max - 6) textureName = "dirt"
+						this.chunk.push({ position, textureName })
+						this.chunkSet.add(position.toArray().toString())
+					}
 				}
 			}
-		}
+			resolve("")
+		})
 	}
 
 	initializeFaces() {
diff --git a/src/main.ts b/src/main.ts
index 6a3f575..3dd197f 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -31,22 +31,36 @@ async function loadTextures() {
 }
 
 function onTexturesLoaded() {
-	const radius = 128
-	const chunk = new Chunk(radius, textures)
+	const radius = 16
 
-	chunk.countVisibleFaces()
+	const positions = [] as THREE.Vector3[]
+	for (let i = -8; i < 8; i++) {
+		for (let j = -8; j < 8; j++) {
+			positions.push(new THREE.Vector3(i * radius, 0, j * radius))
+		}
+	}
 
-	const cubes = [] as Block[]
-	chunk.chunk.forEach(({ position, textureName }) => {
-		const faces = chunk.filterFaces(position, textureName)
-		cubes.push(new Block(faces, position))
-	})
+	const chunks = positions.map(
+		(position) => new Chunk(radius, textures, position)
+	)
+	chunks.map((chunk) =>
+		chunk.generateChunk().then(() => {
+			chunk.initializeFaces()
+			chunk.countVisibleFaces()
 
-	Object.values(chunk.faces).forEach((faceArray) => {
-		faceArray.forEach((face) => {
-			if (face.instancedMesh) scene.add(face.instancedMesh)
+			const cubes = [] as Block[]
+			chunk.chunk.forEach(({ position, textureName }) => {
+				const faces = chunk.filterFaces(position, textureName)
+				cubes.push(new Block(faces, position))
+			})
+
+			Object.values(chunk.faces).forEach((faceArray) => {
+				faceArray.forEach((face) => {
+					if (face.instancedMesh) scene.add(face.instancedMesh)
+				})
+			})
 		})
-	})
+	)
 }
 
 camera.position.x = 15
@@ -55,6 +69,7 @@ camera.position.z = 15
 
 function animate(elapsedTimeMs: number) {
 	renderer.render(scene, camera)
+	console.log(renderer.info.render.calls)
 	controls.update()
 }