WIP: New Overworld Generator

server/AABB.ts

@@ -11,6 +11,8 @@ export default class AABB {
 
 	public initMin:Vec3;
 	public initMax:Vec3;
+	public prevMin:Vec3;
+	public prevMax:Vec3;
 
 	public min:Vec3;
 	public max:Vec3;
@@ -28,6 +30,8 @@ export default class AABB {
 
 		this.initMin = new Vec3(this.min);
 		this.initMax = new Vec3(this.max);
+		this.prevMin = new Vec3(this.min);
+		this.prevMax = new Vec3(this.min);
 
 		this.pooled = pooled;
 		
@@ -105,13 +109,63 @@ export default class AABB {
 		return minZ <= maxZ ? maxZ - minZ : 0;
 	}
 
+	public static copy(aabb:AABB) {
+		const newAABB = new AABB(new Vec3(aabb.min), new Vec3(aabb.max));
+		newAABB.min.set(aabb.min);
+		newAABB.max.set(aabb.max);
+		return newAABB;
+	}
+
+	public copy() {
+		const newAABB = new AABB(new Vec3(this.min), new Vec3(this.max));
+		newAABB.min.set(this.min);
+		newAABB.max.set(this.max);
+		return newAABB;
+	}
+
+	// Can only revert one step
+	public revert() {
+		this.min.set(this.prevMin);
+		this.max.set(this.prevMax);
+	}
+
+	public set(aabb:AABB) {
+		this.prevMin.set(this.min);
+		this.prevMax.set(this.max);
+
+		this.min.set(aabb.min);
+		this.max.set(aabb.min);
+	}
+
 	public move(xOrVec3:Vec3 | number, y?:number, z?:number) {
 		if (this.pooled) {
 			throw new Error(`Attempted to move a pooled AABB. This is not allowed!`);
 		}
 
+		this.prevMin.set(this.min);
+		this.prevMax.set(this.max);
+
 		this.min.set(this.initMin);
 		this.max.set(this.initMax);
+		if (xOrVec3 instanceof Vec3) {
+			//this.pos.set(xOrVec3);
+			this.min.add(xOrVec3);
+			this.max.add(xOrVec3);
+		} else if (typeof(xOrVec3) === "number" && typeof(y) === "number" && typeof(z) === "number") {
+			//this.pos.set(xOrVec3, y, z);
+			this.min.add(xOrVec3, y, z);
+			this.max.add(xOrVec3, y, z);
+		}
+	}
+
+	public offset(xOrVec3:Vec3 | number, y?:number, z?:number) {
+		if (this.pooled) {
+			throw new Error(`Attempted to offset a pooled AABB. This is not allowed!`);
+		}
+
+		this.prevMin.set(this.min);
+		this.prevMax.set(this.max);
+
 		if (xOrVec3 instanceof Vec3) {
 			this.min.add(xOrVec3);
 			this.max.add(xOrVec3);

server/Chunk.ts

@@ -7,6 +7,7 @@ import { World } from "./World";
 
 export class Chunk {
 	private readonly MAX_HEIGHT:number = 128;
+	private readonly FULLBRIGHT = false;
 	public readonly world:World;
 	public readonly x:number;
 	public readonly z:number;
@@ -65,6 +66,18 @@ export class Chunk {
 	}
 
 	public calculateLighting() {
+		if (this.FULLBRIGHT) {
+			for (let x = 0; x < 16; x++) {
+				for (let z = 0; z < 16; z++) {
+					for (let y = this.MAX_HEIGHT - 1; y > 0; y--) {
+						this.setBlockLight(15, x, y, z);
+						this.setSkyLight(15, x, y, z);
+					}
+				}
+			}
+			return;
+		}
+
 		let blockId = 0;
 		for (let x = 0; x < 16; x++) {
 			for (let z = 0; z < 16; z++) {

server/MinecraftServer.ts

@@ -23,6 +23,7 @@ import { HillyGenerator } from "./generators/Hilly";
 import { NetherGenerator } from "./generators/Nether";
 import { PacketWindowItems } from "./packets/WindowItems";
 import { getRandomValues } from "crypto";
+import { NewOverworld } from "./generators/NewOverworld";
 
 const chunkFrom = -15;
 const chunkTo = 15;
@@ -121,6 +122,7 @@ export class MinecraftServer {
 		}
 
 		this.worlds = new FunkyArray<number, World>();
+		//this.worlds.set(0, new World(this.saveManager, 0, worldSeed, new NewOverworld(worldSeed)));
 		this.worlds.set(0, new World(this.saveManager, 0, worldSeed, new HillyGenerator(worldSeed)));
 		this.worlds.set(-1, new World(this.saveManager, -1, worldSeed, new NetherGenerator(worldSeed)));
 

server/entities/Entity.ts

@@ -249,33 +249,42 @@ export class Entity implements IEntity {
         }
 	}
 
+	private getBlockAABBFor(x:number, y:number, z:number) {
+		const blockId = this.chunk.getBlockId(x, y, z);
+		const blockEntityIsTouching = blockId > 0 ? Block.blocks[blockId] : null;
+
+		if (blockEntityIsTouching != null) {
+			return blockEntityIsTouching.getBoundingBox(Math.floor(this.position.x), Math.floor(this.position.y), Math.floor(this.position.z));
+		}
+
+		return null;
+	}
+
 	moveEntity(motionX:number, motionY:number, motionZ:number) {
 		this.position.add(motionX, motionY, motionZ);
 		this.entityAABB.move(this.position);
 
-		const blockId = this.chunk.getBlockId(Math.floor(this.position.x) & 0xf, Math.floor(this.position.y), Math.floor(this.position.z) & 0xf);
-		const blockUnderEntity = blockId > 0 ? Block.blocks[blockId] : null;
+		let blockAABB = this.getBlockAABBFor(Math.floor(this.position.x) & 0xf, Math.floor(this.position.y), Math.floor(this.position.z) & 0xf);
 
-		if (blockUnderEntity !== null) {
+		if (blockAABB !== null) {
 			this.moveEntityBlockPosRel.set(this.position);
 			this.moveEntityBlockPosRel.sub(Math.floor(this.position.x), Math.floor(this.position.y), Math.floor(this.position.z));
 	
-			console.log(this.moveEntityBlockPosRel);
-
-			const blockBoundingBox = blockUnderEntity.getBoundingBox(Math.floor(this.position.x), Math.floor(this.position.y), Math.floor(this.position.z));
 			// TODO: Handle X and Z collisions.
-			if (this.entityAABB.intersects(blockBoundingBox)) {
-				const intersectionY = this.entityAABB.intersectionY(blockBoundingBox);
+			if (this.entityAABB.intersects(blockAABB)) {
+				const intersectionY = this.entityAABB.intersectionY(blockAABB);
 				if (this.moveEntityBlockPosRel.y > 0.5) {
-					this.position.add(0, intersectionY, 0);
+					motionY = intersectionY;
 				} else {
-					this.position.sub(0, intersectionY, 0);
+					motionY = -intersectionY;
 				}
+			}
+
+			this.position.add(0, motionY, 0);
 			this.motion.y = 0;
 			this.onGround = true;
 		}
 	}
-	}
 
 	onTick() {
 		this.updateMetadata();

server/generators/NewOverworld.ts

@@ -0,0 +1,83 @@
+
+import { makeNoise2D, Noise2D } from "../../external/OpenSimplex2D";
+import { makeNoise3D, Noise3D } from "../../external/OpenSimplex3D";
+import { Block } from "../blocks/Block";
+import { Chunk } from "../Chunk";
+import mulberry32 from "../mulberry32";
+import { IGenerator } from "./IGenerator";
+
+export class NewOverworld implements IGenerator {
+	private seed:number;
+	seedGenerator:() => number;
+
+	public layer1:Noise3D;
+	public layer2:Noise3D;
+	public mix:Noise3D;
+	public maxHeight:Noise2D;
+
+	private createGenerator2D() {
+		return makeNoise2D(this.seedGenerator() * Number.MAX_SAFE_INTEGER);
+	}
+
+	private createGenerator3D() {
+		return makeNoise3D(this.seedGenerator() * Number.MAX_SAFE_INTEGER);
+	}
+
+	public constructor(seed:number) {
+		this.seed = seed;
+		this.seedGenerator = mulberry32(this.seed);
+		this.layer1 = this.createGenerator3D();
+		this.layer2 = this.createGenerator3D();
+		this.mix = this.createGenerator3D();
+		this.maxHeight = this.createGenerator2D();
+	}
+
+	private noiseForCoord(chunk:Chunk, x:number, y:number, z:number) {
+		const mixValue = this.mix((chunk.x * 16 + x) / 16, y / 16, (chunk.z * 16 + z) / 16);
+		const layer1 = this.layer1((chunk.x * 16 + x) / 64, y / 64, (chunk.z * 16 + z) / 64) / 2048;
+		const layer2 = this.layer2((chunk.x * 16 + x) / 64, y / 64, (chunk.z * 16 + z) / 64) / 2048;
+		const maxHeightLayer = 80 + this.maxHeight((chunk.x * 16 + x) / 64, (chunk.z * 16 + z) / 64) * 32;
+		if (y > maxHeightLayer) {
+			return 0;
+		}
+		
+		if (mixValue < 0) {
+			return layer1;
+		} else if (mixValue > 1) {
+			return layer2;
+		} else {
+			return layer1 + (layer2 - layer1) * mixValue;
+		}
+	}
+
+	public generate(chunk:Chunk) {
+		for (let y = 0; y < 128; y++) {
+			for (let x = 0; x < 16; x++) {
+				for (let z = 0; z < 16; z++) {
+					if (y === 0 || (y < 3 && this.layer1(x, y, z) > 0.1)) {
+						chunk.setBlock(Block.bedrock.blockId, x, y, z);
+					} else {
+						
+						if (this.noiseForCoord(chunk, x, y, z) > 0) {
+							chunk.setBlock(Block.stone.blockId, x, y, z);
+						} else if (y < 64) {
+							chunk.setBlock(Block.waterStill.blockId, x, y, z);
+						}
+					}
+				}
+			}	
+		}
+
+		for (let y = 0; y < 128; y++) {
+			for (let x = 0; x < 16; x++) {
+				for (let z = 0; z < 16; z++) {
+					if (y === 0 || (y < 3 && this.layer1(x, y, z) > 0.1)) {
+						chunk.setBlock(Block.bedrock.blockId, x, y, z);
+					} else {
+						
+					}
+				}
+			}	
+		}
+	}
+}