feat: tile layer chunking

app/client-ecs.js

@@ -25,8 +25,21 @@ export default class ClientEcs extends Ecs {
     return cache.get(uri);
   }
   async readJson(uri) {
-    const chars = await this.readAsset(uri);
-    return chars.byteLength > 0 ? JSON.parse((new TextDecoder()).decode(chars)) : {};
+    const key = ['$$json', uri].join(':');
+    if (!cache.has(key)) {
+      let promise, resolve, reject;
+      promise = new Promise((res, rej) => {
+        resolve = res;
+        reject = rej;
+      });
+      cache.set(key, promise);
+      this.readAsset(uri)
+        .then((chars) => {
+          resolve(chars.byteLength > 0 ? JSON.parse((new TextDecoder()).decode(chars)) : {});
+        })
+        .catch(reject);
+    }
+    return cache.get(key);
   }
   async readScript(uri, context = {}) {
     const code = await this.readAsset(uri);

app/constants.js

@@ -1,3 +1,5 @@
+export const CHUNK_SIZE = 32;
+
 export const CLIENT_LATENCY = 0;
 
 export const CLIENT_PREDICTION = true;

app/create-forest.js

@@ -0,0 +1,147 @@
+import alea from 'alea';
+import {createNoise2D} from 'simplex-noise';
+
+import {createRandom, Generator} from '@/util/math.js';
+
+import createEcs from './create-ecs.js';
+
+const seed = 42069;
+const prng = alea(seed);
+const rawNoise = createNoise2D(prng);
+const noise = (x, y) => (1 + rawNoise(x, y)) / 2;
+const random = createRandom(seed);
+
+const indexComputer = (indices, randomizer) => (
+  (position) => indices[Math.floor(indices.length * randomizer(position))]
+);
+
+const [w, h] = [256, 256];
+
+const Forest = new Generator({
+  calculate: indexComputer(
+    [1, 3, 4, 10, 11, 12], // grass
+    ({x, y}) => noise(x * 30, y * 30),
+  ),
+  covers: () => true,
+  size: {w, h},
+  children: [
+    new Generator({
+      calculate: indexComputer(
+        [342, 456], // dirt
+        ({x, y}) => noise(x * 30, y * 30),
+      ),
+      covers: ({x, y}) => noise(x * (1 / 16), y * (1 / 16)) < 0.5,
+      size: {w, h},
+      children: [
+        new Generator({
+          calculate: indexComputer(
+            [407, 408, 423, 424], // stone path
+            ({x, y}) => noise(x * 30, y * 30),
+          ),
+          covers: ({x, y}) => noise(x * (1 / 16), y * (1 / 16)) < 0.1625,
+          size: {w, h},
+        }),
+      ],
+    }),
+    new Generator({
+      calculate: indexComputer(
+        [103, 104], // water
+        ({x, y}) => noise(x * 30, y * 30),
+      ),
+      covers: ({x, y}) => noise(x * (1 / 32), y * (1 / 32)) < 0.3,
+      size: {w, h},
+    }),
+  ],
+});
+
+export default async function createForest(Ecs) {
+  const ecs = createEcs(Ecs);
+  const area = {x: w, y: h};
+  const master = ecs.get(await ecs.create({
+    AreaSize: {x: area.x * 16, y: area.y * 16},
+    Ticking: {},
+    TileLayers: {
+      layers: [
+        {
+          area,
+          data: Array(w * h).fill(0),
+          source: '/assets/tileset.json',
+          tileSize: {x: 16, y: 16},
+        },
+        {
+          area,
+          data: Array(w * h).fill(0),
+          source: '/assets/tileset.json',
+          tileSize: {x: 16, y: 16},
+        },
+      ],
+    },
+    Time: {},
+  }));
+  Forest.generate();
+  const layer0 = master.TileLayers.layers[0];
+  layer0.data = Forest.matrix;
+  for (let y = 0; y < h; ++y)  {
+    for (let x = 0; x < w; ++x)  {
+      const dirt = Forest.children[0].matrix[y * w + x];
+      if (dirt) {
+        layer0.data[y * w + x] = dirt;
+      }
+      const stone = Forest.children[0].children[0].matrix[y * w + x];
+      if (stone) {
+        layer0.data[y * w + x] = stone;
+      }
+      const water = Forest.children[1].matrix[y * w + x];
+      if (water) {
+        layer0.data[y * w + x] = water;
+      }
+    }
+  }
+
+  const entityPosition = (x, y) => ({
+    x: (8 + (x * 16) + random() * 8 - 4),
+    y: (8 + (y * 16) + random() * 8 - 4),
+  });
+
+  for (let y = 0; y < h; ++y) {
+    for (let x = 0; x < w; ++x) {
+      let v = noise(x * (1 / 24), y * (1 / 24));
+      if (v > 0.2) {
+        v = noise(x * (1 / 7), y * (1 / 7));
+        if (v < 0.15) {
+          await ecs.create({
+            Position: entityPosition(x, y),
+            Sprite: {
+              anchorY: 0.7,
+              source: '/assets/ambient/shrub.json',
+            },
+            VisibleAabb: {},
+          });
+        }
+        else if (v < 0.17) {
+          await ecs.create({
+            Position: entityPosition(x, y),
+            Sprite: {
+              anchorY: 0.875,
+              source: '/assets/ambient/tree.json',
+            },
+            VisibleAabb: {},
+          });
+        }
+        v = noise(x * (1 / 12), y * (1 / 12));
+        if (v < 0.08) {
+          await ecs.create({
+            Position: entityPosition(x, y),
+            Sprite: {
+              anchorY: 0.7,
+              source: '/assets/ambient/flower.json',
+            },
+            VisibleAabb: {},
+          });
+        }
+      }
+    }
+  }
+  return ecs;
+}
+

app/create-player.js

@@ -15,7 +15,7 @@ export default async function createPlayer(id) {
     },
     Controlled: {},
     Direction: {direction: 2},
-    Ecs: {path: ['homesteads', `${id}`].join('/')},
+    Ecs: {path: ['forests', `${id}`].join('/')},
     Emitter: {},
     Forces: {},
     Interacts: {},

app/ecs-components/area-size.js

@@ -2,7 +2,7 @@ import Component from '@/ecs/component.js';
 
 export default class AreaSize extends Component {
   static properties = {
-    x: {type: 'uint16'},
-    y: {type: 'uint16'},
+    x: {type: 'uint32'},
+    y: {type: 'uint32'},
   };
 }

app/ecs-components/tile-layers.js

@@ -1,18 +1,36 @@
+import {CHUNK_SIZE} from '@/constants.js';
 import Component from '@/ecs/component.js';
 import {floodwalk2D, ortho, removeCollinear} from '@/util/math.js';
 
 import vector2d from './helpers/vector-2d';
 
 class LayerProxy {
-  $$sourceJson;
+  $$chunks = [];
+  $$sourceJson = {};
   constructor(instance, Component, index) {
     this.instance = instance;
     this.Component = Component;
     this.index = index;
+    this.$$chunks = Array(
+      Math.ceil(this.area.x / CHUNK_SIZE) * Math.ceil(this.area.y / CHUNK_SIZE)
+    ).fill(0).map(() => ({}));
   }
   get area() {
     return this.layer.area;
   }
+  clone() {
+    const {$$chunks, $$sourceJson} = this.instance.$$layersProxies[this.index];
+    const proxy = new LayerProxy(this.instance, this.Component, this.index);
+    proxy.$$chunks = [...$$chunks];
+    proxy.$$sourceJson = $$sourceJson;
+    return proxy;
+  }
+  compute(index) {
+    const cx = Math.floor((index % this.area.x) / CHUNK_SIZE);
+    const cy = Math.floor(Math.floor(index / this.area.x) / CHUNK_SIZE);
+    const ax = Math.ceil(this.area.x / CHUNK_SIZE);
+    return cy * ax + cx;
+  }
   get data() {
     return this.layer.data;
   }
@@ -119,23 +137,66 @@ class LayerProxy {
 }
 
 export default class TileLayers extends Component {
-  async insertMany(entities) {
-    for (const [id, {layerChange}] of entities) {
+  async createMany(entities) {
+    for (const [, {layerChange, layers}] of entities) {
+      if (layers) {
+        for (const layer of layers) {
+          const area = layer.area.x * layer.area.y;
+          if (layer.data.length < area) {
+            for (let i = 0; i < area; ++i) {
+              if (!layer.data[i]) {
+                layer.data[i] = 0;
+              }
+            }
+          }
+        }
+      }
       if (layerChange) {
-        const component = this.get(id);
-        const {layers} = component;
         for (const layerIndex in layerChange) {
           for (const calculated in layerChange[layerIndex]) {
             const tile = layerChange[layerIndex][calculated];
             layers[layerIndex].data[calculated] = tile;
           }
-          layers[layerIndex] = {...layers[layerIndex]};
-          component.$$layersProxies[layerIndex] = new LayerProxy(component, this, layerIndex);
-          await component.$$layersProxies[layerIndex].load();
         }
       }
     }
-    return super.insertMany(entities);
+    return super.createMany(entities);
+  }
+  async insertMany(entities) {
+    for (const [, {layers}] of entities) {
+      if (layers) {
+        for (const layer of layers) {
+          const area = layer.area.x * layer.area.y;
+          if (layer.data.length < area) {
+            for (let i = 0; i < area; ++i) {
+              if (!layer.data[i]) {
+                layer.data[i] = 0;
+              }
+            }
+          }
+        }
+      }
+    }
+    await super.insertMany(entities);
+    for (const [id, {layerChange}] of entities) {
+      if (layerChange) {
+        const component = this.get(id);
+        const {layers} = component;
+        for (const layerIndex in layerChange) {
+          const proxy = component.$$layersProxies[layerIndex].clone();
+          const chunksChanged = new Set();
+          for (const tileIndex in layerChange[layerIndex]) {
+            chunksChanged.add(proxy.compute(tileIndex));
+            const tile = layerChange[layerIndex][tileIndex];
+            layers[layerIndex].data[tileIndex] = tile;
+          }
+          for (const chunkChanged of chunksChanged) {
+            proxy.$$chunks[chunkChanged] = {};
+          }
+          component.$$layersProxies[layerIndex] = proxy;
+        }
+      }
+    }
   }
   instanceFromSchema() {
     return class TileLayersInstance extends super.instanceFromSchema() {

app/ecs-systems/follow-camera.js

@@ -1,5 +1,8 @@
+// import {RESOLUTION} from '@/constants.js'
 import {System} from '@/ecs/index.js';
 
+// const [hx, hy] = [RESOLUTION.x / 2, RESOLUTION.y / 2];
+
 export default class FollowCamera extends System {
 
   static queries() {
@@ -24,6 +27,11 @@ export default class FollowCamera extends System {
   updateCamera(portion, entity) {
     const {Camera, Position} = entity;
     if (Camera && Position) {
+      // const {AreaSize: {x, y}} = this.ecs.get(1);
+      // const [px, py] = [
+      //   Math.max(hx, Math.min(Math.round(Position.x), x - hx)),
+      //   Math.max(hy, Math.min(Math.round(Position.y), y - hy)),
+      // ];
       const [px, py] = [
         Math.round(Position.x),
         Math.round(Position.y),

app/engine.js

@@ -1,4 +1,5 @@
 import {
+  CHUNK_SIZE,
   RESOLUTION,
   TPS,
 } from '@/constants.js';
@@ -7,10 +8,17 @@ import {decode, encode} from '@/packets/index.js';
 import Script from '@/util/script.js';
 
 import createEcs from './create-ecs.js';
+import createForest from './create-forest.js';
 import createHomestead from './create-homestead.js';
 import createHouse from './create-house.js';
 import createPlayer from './create-player.js';
 
+import {LRUCache} from 'lru-cache';
+
+const cache = new LRUCache({
+  max: 128,
+});
+
 export default class Engine {
 
   connectedPlayers = new Map();
@@ -38,11 +46,35 @@ export default class Engine {
         return engine.frame;
       }
       async readAsset(uri) {
-        return server.readAsset(uri);
+        if (!cache.has(uri)) {
+          let promise, resolve, reject;
+          promise = new Promise((res, rej) => {
+            resolve = res;
+            reject = rej;
+          });
+          cache.set(uri, promise);
+          server.readAsset(uri)
+            .then(resolve)
+            .catch(reject);
+        }
+        return cache.get(uri);
       }
       async readJson(uri) {
-        const chars = await this.readAsset(uri);
-        return chars.byteLength > 0 ? JSON.parse((new TextDecoder()).decode(chars)) : {};
+        const key = ['$$json', uri].join(':');
+        if (!cache.has(key)) {
+          let promise, resolve, reject;
+          promise = new Promise((res, rej) => {
+            resolve = res;
+            reject = rej;
+          });
+          cache.set(key, promise);
+          this.readAsset(uri)
+            .then((chars) => {
+              resolve(chars.byteLength > 0 ? JSON.parse((new TextDecoder()).decode(chars)) : {});
+            })
+            .catch(reject);
+        }
+        return cache.get(key);
       }
       async readScript(uri, context) {
         if (!uri) {
@@ -61,7 +93,10 @@ export default class Engine {
           // remove entity link to connection to start queueing actions and pause updates
           delete connectedPlayer.entity;
           // forget previous state
-          connectedPlayer.memory.clear();
+          connectedPlayer.memory = {
+            chunks: new Map(),
+            nearby: new Set(),
+          };
           // inform client of the upcoming change
           server.send(
             connection,
@@ -183,7 +218,10 @@ export default class Engine {
       {
         entity: ecs.get(entity),
         id,
-        memory: new Set(),
+        memory: {
+          chunks: new Map(),
+          nearby: new Set(),
+        },
       },
     );
   }
@@ -230,6 +268,11 @@ export default class Engine {
         ['houses', `${id}`].join('/'),
         house,
       );
+      const forest = await createForest(this.Ecs, id);
+      await this.saveEcs(
+        ['forests', `${id}`].join('/'),
+        forest,
+      );
       buffer = await createPlayer(id);
       await this.server.writeData(
         ['players', `${id}`].join('/'),
@@ -323,12 +366,14 @@ export default class Engine {
       y1: y0 + (RESOLUTION.y * 2),
     });
     // Master entity.
-    nearby.add(ecs.get(1));
-    const lastMemory = new Set(memory.values());
+    const master = ecs.get(1);
+    nearby.add(master);
+    const lastNearby = new Set(memory.nearby.values());
+    const firstUpdate = 0 === lastNearby.size;
     for (const entity of nearby) {
       const {id} = entity;
-      lastMemory.delete(id);
-      if (!memory.has(id)) {
+      lastNearby.delete(id);
+      if (!memory.nearby.has(id)) {
         update[id] = entity.toJSON();
         if (mainEntityId === id) {
           update[id].MainEntity = {};
@@ -337,12 +382,91 @@ export default class Engine {
       else if (ecs.diff[id]) {
         update[id] = ecs.diff[id];
       }
-      memory.add(id);
+      memory.nearby.add(id);
     }
-    for (const id of lastMemory) {
-      memory.delete(id);
+    for (const id of lastNearby) {
+      memory.nearby.delete(id);
       update[id] = false;
     }
+    // Tile layer chunking
+    const {TileLayers} = master;
+    const {layers} = TileLayers;
+    let layerChange;
+    for (const i in layers) {
+      const layer = TileLayers.layer(i);
+      const cx = CHUNK_SIZE * layer.tileSize.x;
+      const cy = CHUNK_SIZE * layer.tileSize.y;
+      const rx = 1 + Math.ceil((RESOLUTION.x * 2) / cx);
+      const ry = 1 + Math.ceil((RESOLUTION.y * 2) / cy);
+      const lx = Math.floor((entity.Position.x - RESOLUTION.x) / cx);
+      const ly = Math.floor((entity.Position.y - RESOLUTION.y) / cy);
+      const ax = Math.ceil(layer.area.x / CHUNK_SIZE);
+      for (let wy = 0; wy < ry; ++wy) {
+        for (let wx = 0; wx < rx; ++wx) {
+          const iy = wy + ly;
+          const ix = wx + lx;
+          if (
+            ix >= 0
+            && iy >= 0
+            && ix < Math.ceil(layer.area.x / CHUNK_SIZE)
+            && iy < Math.ceil(layer.area.y / CHUNK_SIZE)
+          ) {
+            const chunk = iy * ax + ix;
+            if (!memory.chunks.has(i)) {
+              memory.chunks.set(i, new Set());
+            }
+            if (!memory.chunks.get(i).has(chunk)) {
+              memory.chunks.get(i).add(chunk);
+              if (!layerChange) {
+                layerChange = {};
+              }
+              if (!layerChange[i]) {
+                layerChange[i] = {};
+              }
+              for (let y = 0; y < CHUNK_SIZE; ++y) {
+                for (let x = 0; x < CHUNK_SIZE; ++x) {
+                  const ty = (iy * CHUNK_SIZE) + y;
+                  const tx = (ix * CHUNK_SIZE) + x;
+                  if (
+                    tx < 0
+                    || ty < 0
+                    || tx >= layers[i].area.x
+                    || ty >= layers[i].area.y
+                  ) {
+                    continue;
+                  }
+                  const computed = ((iy * CHUNK_SIZE) + y) * layers[i].area.x + ((ix * CHUNK_SIZE) + x);
+                  layerChange[i][computed] = layers[i].data[computed];
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+    if (firstUpdate && update['1']) {
+      const {TileLayers} = update['1'];
+      if (TileLayers) {
+        const layersUpdate = [];
+        const {layers} = TileLayers;
+        for (const l in layers) {
+          layersUpdate[l] = {
+            ...layers[l],
+            data: [],
+          };
+        }
+        update['1'].TileLayers = {layers: layersUpdate};
+      }
+    }
+    if (layerChange) {
+      if (!update['1']) {
+        update['1'] = {};
+      }
+      if (!update['1'].TileLayers) {
+        update['1'].TileLayers = {};
+      }
+      update['1'].TileLayers.layerChange = layerChange;
+    }
     return update;
   }
 

app/net/server/worker.js

@@ -2,6 +2,7 @@ import {del, get, set} from 'idb-keyval';
 
 import {encode} from '@/packets/index.js';
 
+import '../../create-forest.js';
 import '../../create-homestead.js';
 import '../../create-player.js';
 
@@ -92,6 +93,18 @@ if (import.meta.hot) {
     // await engine.server.writeData('players/0', (new TextEncoder()).encode(JSON.stringify(player)));
     resolver.resolve();
   });
+  import.meta.hot.accept('../../create-forest.js', async ({default: createForest}) => {
+    const resolver = createResolver();
+    resolvers.push(resolver);
+    await beforeResolver;
+    delete engine.ecses['forests/0'];
+    await engine.server.removeData('forests/0');
+    const last = performance.now();
+    const forest = await createForest(engine.Ecs, '0');
+    console.log((performance.now() - last) / 1000);
+    await engine.saveEcs('forests/0', forest);
+    resolver.resolve();
+  });
   import.meta.hot.accept('../../create-homestead.js', async ({default: createHomestead}) => {
     const resolver = createResolver();
     resolvers.push(resolver);
@@ -99,7 +112,6 @@ if (import.meta.hot) {
     // delete engine.ecses['homesteads/0'];
     // await engine.server.removeData('homesteads/0');
     // const homestead = await createHomestead(engine.Ecs, '0');
-    // homestead.get(2).Ecs.path = 'houses/0';
     // await engine.saveEcs('homesteads/0', homestead);
     resolver.resolve();
   });

app/react-components/devtools.jsx

@@ -1,6 +1,10 @@
+import {useState} from 'react';
 import {Tab, Tabs, TabList, TabPanel} from 'react-tabs';
 import 'react-tabs/style/react-tabs.css';
 
+import {useEcs, useEcsTick} from '@/context/ecs.js';
+import {useMainEntity} from '@/context/main-entity.js';
+
 import styles from './devtools.module.css';
 
 import Tiles from './devtools/tiles.jsx';
@@ -10,15 +14,22 @@ export default function Devtools({
   eventsChannel,
   setApplyFilters,
 }) {
+  const [ecs] = useEcs();
+  const [mainEntity] = useMainEntity();
+  const [mainEntityJson, setMainEntityJson] = useState({});
+  useEcsTick(() => {
+    if (!ecs || !mainEntity) {
+      return;
+    }
+    setMainEntityJson(ecs.get(mainEntity).toJSON());
+  }, [ecs, mainEntity]);
   return (
     <div className={styles.devtools}>
-
       <Tabs>
         <TabList>
           <Tab>Dashboard</Tab>
           <Tab>Tiles</Tab>
         </TabList>
-
         <TabPanel>
           <div className={styles.dashboard}>
             <form>
@@ -35,9 +46,9 @@ export default function Devtools({
                 </label>
               </div>
             </form>
+            <pre><code><small>{JSON.stringify(mainEntityJson, null, 2)}</small></code></pre>
           </div>
         </TabPanel>
-
         <TabPanel>
           <Tiles
             eventsChannel={eventsChannel}

app/react-components/devtools/tiles.jsx

@@ -11,6 +11,7 @@ export default function Tiles({eventsChannel}) {
   const wrapperRef = useRef();
   const imageRef = useRef();
   const imageRect = useRect(imageRef);
+  const [indices, setIndices] = useState([]);
   const [selection, setSelection] = useState({x: 0, y: 0, w: 1, h: 1});
   const [moveStart, setMoveStart] = useState();
   const [layer, setLayer] = useState(0);
@@ -35,17 +36,19 @@ export default function Tiles({eventsChannel}) {
       if (at.x < 0 || at.y < 0 || at.x >= area.x || at.y >= area.y) {
         return;
       }
-      const payload = {
-        brush,
-        layer,
-        stamp: {
-          at,
-          data: stamp,
-        },
-      }
       client.send({
         type: 'AdminAction',
-        payload: {type: 'paint', value: payload},
+        payload: {
+          type: 'paint',
+          value: {
+            brush,
+            layer,
+            stamp: {
+              at,
+              data: stamp,
+            },
+          },
+        },
       });
     }
     eventsChannel.addListener('click', onClick);
@@ -64,6 +67,7 @@ export default function Tiles({eventsChannel}) {
   const {sourceJson, tileSize} = TileLayers.layer(0);
   const {w, h} = sourceJson.meta.size;
   const factor = (imageRect?.width ?? 1) / w;
+  const wt = w / tileSize.x;
   return (
     <div className={styles.tiles}>
       <form>
@@ -125,8 +129,14 @@ export default function Tiles({eventsChannel}) {
           const y = Math.floor((c.y - top) / (tileSize.y * factor));
           setMoveStart({x, y});
           setSelection({x, y, w: 1, h: 1});
+          setStamp([[y * wt + x]]);
+          setIndices([y * wt + x]);
         }}
         onMouseMove={(event) => {
+          if (0 === event.buttons) {
+            setMoveStart();
+            return;
+          }
           if (!moveStart) {
             return;
           }
@@ -145,21 +155,39 @@ export default function Tiles({eventsChannel}) {
           );
           const mx = Math.min(sx, x);
           const my = Math.min(sy, y);
-          setSelection({x: mx, y: my, w: Math.abs(sx - x) + 1, h: Math.abs(sy - y) + 1});
-        }}
-        onMouseUp={() => {
-          setMoveStart();
+          const sw = Math.abs(sx - x) + 1;
+          const sh = Math.abs(sy - y) + 1;
+          const newSelection = {
+            x: mx,
+            y: my,
+            w: sw,
+            h: sh,
+          };
+          if (
+            selection.x === newSelection.x
+            && selection.y === newSelection.y
+            && selection.w === newSelection.w
+            && selection.h === newSelection.h
+          ) {
+            return;
+          }
+          setSelection(newSelection);
           const stamp = [];
-          const {x, y, w: sw, h: sh} = selection;
-          const tw = w / tileSize.x;
           for (let iy = 0; iy < sh; ++iy) {
             const row = [];
             for (let ix = 0; ix < sw; ++ix) {
-              row.push((y + iy) * tw + x + ix);
+              row.push((my + iy) * wt + mx + ix);
             }
             stamp.push(row);
           }
           setStamp(stamp);
+          const indices = [];
+          for (let sy = 0; sy < newSelection.h; ++sy) {
+            for (let sx = 0; sx < newSelection.w; ++sx) {
+              indices.push(((newSelection.y + sy) * wt) + (newSelection.x + sx));
+            }
+          }
+          setIndices(indices);
         }}
         className={styles.selectionWrapper}
         ref={wrapperRef}
@@ -179,6 +207,25 @@ export default function Tiles({eventsChannel}) {
           src={TileLayers.layer(0).source.replace('.json', '.png')}
         />
       </div>
+      <div
+        className={styles.status}
+      >
+        <code className={styles.selectionStatus}>
+          Sel:
+          {' {'}
+          {selection.x}{', '}
+          {selection.y}{', '}
+          {selection.w}{', '}
+          {selection.h}
+          {'}'}
+        </code>
+        <code>
+          Idx:
+          {' ['}
+          {indices.join(', ')}
+          {']'}
+        </code>
+      </div>
     </div>
   );
 }

app/react-components/devtools/tiles.module.css

@@ -28,3 +28,16 @@
   background-color: #ffffff44;
   position: absolute;
 }
+
+.status {
+  align-items: end;
+  display: flex;
+  font-size: 0.6rem;
+  gap: 32px;
+  justify-content: space-between;
+  margin: 8px;
+}
+
+.selectionStatus {
+  white-space: nowrap;
+}

app/react-components/ecs.jsx

@@ -1,14 +1,10 @@
-import {simplex2D} from '@leodeslf/simplex-noise';
-import {Texture} from '@pixi/core';
 import {Container} from '@pixi/react';
-import {Sprite} from '@pixi/sprite';
 import {useEffect, useState} from 'react';
 
 import {RESOLUTION} from '@/constants.js';
 import {usePacket} from '@/context/client.js';
 import {useEcs, useEcsTick} from '@/context/ecs.js';
 import {useMainEntity} from '@/context/main-entity.js';
-import {bresenham, TAU} from '@/util/math.js';
 
 import Entities from './entities.jsx';
 import TargetingGhost from './targeting-ghost.jsx';
@@ -32,60 +28,13 @@ function calculateDarkness(hour) {
   return Math.floor(darkness * 1000) / 1000;
 }
 
-function createLayerMask(layer) {
-  const {area, hulls, tileSize} = layer;
-  const canvas = window.document.createElement('canvas');
-  if (0 === hulls.length) {
-    return Texture.from(canvas);
-  }
-  [canvas.width, canvas.height] = [area.x * tileSize.x, area.y * tileSize.y];
-  const ctx = canvas.getContext('2d');
-  ctx.fillStyle = 'rgba(0, 0, 0, 1)';
-  ctx.fillRect(0, 0, canvas.width, canvas.height);
-  ctx.fillStyle = 'rgba(255, 255, 255, 1)';
-  for (let i = 0; i < hulls.length; ++i) {
-    const hull = [...hulls[i]];
-    hull.push(hull[0]);
-    ctx.beginPath();
-    ctx.moveTo(hull[0].x, hull[0].y);
-    for (let j = 0; j < hull.length - 1; j++) {
-      const p0 = hull[j + 0];
-      const p1 = hull[j + 1];
-      const points = bresenham(p0, p1);
-      const isReversed = (
-        (p0.x > p1.x && points[0].x < points[points.length - 1].x)
-        || (p0.y > p1.y && points[0].y < points[points.length - 1].y)
-      );
-      for (
-        let k = (isReversed ? points.length - 1 : 0);
-        (isReversed ? k >= 0 : k < points.length);
-        k += (isReversed ? -1 : 1)
-      ) {
-        const {x, y} = points[k];
-        const ANGLE_SCALE = 1000;
-        const WALK_SCALE = 10;
-        const MAGNITUDE = ((tileSize.x + tileSize.y) / 2) * simplex2D(x * 100, y * 100);
-        const w = simplex2D(x * WALK_SCALE, y * WALK_SCALE);
-        const r = TAU * simplex2D(x * ANGLE_SCALE, y * ANGLE_SCALE)
-        ctx.lineTo(
-          x + Math.cos(r) * w * MAGNITUDE,
-          y + -Math.sin(r) * w * MAGNITUDE,
-        );
-      }
-    }
-    ctx.closePath();
-    ctx.fill();
-  }
-  return Texture.from(canvas);
-}
-
 export default function Ecs({applyFilters, scale}) {
   const [ecs] = useEcs();
   const [entities, setEntities] = useState({});
+  const [filters, setFilters] = useState([]);
   const [mainEntity] = useMainEntity();
   const [hour, setHour] = useState(10);
   const [night, setNight] = useState();
-  const [mask, setMask] = useState();
   useEffect(() => {
     async function buildNightFilter() {
       const {ColorMatrixFilter} = await import('@pixi/filter-color-matrix');
@@ -131,12 +80,6 @@ export default function Ecs({applyFilters, scale}) {
           if (update.Time) {
             setHour(Math.round(ecs.get(1).Time.hour * 60) / 60);
           }
-          if (update.TileLayers) {
-            const layer1 = ecs.get(1).TileLayers.layer(1);
-            if (layer1) {
-              setMask(new Sprite(createLayerMask(layer1)));
-            }
-          }
         }
         updatedEntities[id] = ecs.get(id);
         if (update.Emitter?.emit) {
@@ -149,6 +92,13 @@ export default function Ecs({applyFilters, scale}) {
     }
     setEntities(updatedEntities);
   }, [ecs, entities, mainEntity]);
+  useEffect(() => {
+    setFilters(
+      applyFilters
+        ? [night]
+        : [],
+    );
+  }, [applyFilters, night])
   if (!ecs || !mainEntity) {
     return false;
   }
@@ -162,10 +112,6 @@ export default function Ecs({applyFilters, scale}) {
   const {TileLayers, Water: WaterEcs} = ecs.get(1);
   const layer0 = TileLayers.layer(0);
   const layer1 = TileLayers.layer(1);
-  const filters = [];
-  if (applyFilters && night) {
-    filters.push(night);
-  }
   const [cx, cy] = [
     Math.round((Camera.x * scale) - RESOLUTION.x / 2),
     Math.round((Camera.y * scale) - RESOLUTION.y / 2),
@@ -185,7 +131,6 @@ export default function Ecs({applyFilters, scale}) {
         />
         {layer1 && (
           <TileLayer
-            mask={mask}
             filters={filters}
             tileLayer={layer1}
           />
@@ -193,7 +138,6 @@ export default function Ecs({applyFilters, scale}) {
       </Container>
       {WaterEcs && (
         <Water
-          mask={mask}
           tileLayer={layer0}
           water={WaterEcs.water}
         />

app/react-components/entities.jsx

@@ -40,7 +40,7 @@ export default function Entities({entities, filters}) {
     const isHighlightedInteraction = id == willInteractWith;
     renderables.push(
       <Entity
-        filters={filters.concat(isHighlightedInteraction ? interactionFilters : [])}
+        filters={isHighlightedInteraction ? interactionFilters : null}
         entity={entities[id]}
         key={id}
       />
@@ -48,6 +48,7 @@ export default function Entities({entities, filters}) {
   }
   return (
     <Container
+      filters={filters}
       sortableChildren
     >
       {renderables}

app/react-components/tile-layer.jsx

@@ -3,42 +3,64 @@ import {PixiComponent} from '@pixi/react';
 import '@pixi/spritesheet'; // NECESSARY!
 import {CompositeTilemap} from '@pixi/tilemap';
 
+import {CHUNK_SIZE} from '@/constants.js';
 import {useAsset} from '@/context/assets.js';
 
 const TileLayerInternal = PixiComponent('TileLayer', {
-  create: () => {
+  create: ({tileLayer}) => {
     const container = new Container();
-    container.addChild(new CompositeTilemap());
+    const cy = Math.ceil(tileLayer.area.y / CHUNK_SIZE);
+    const cx = Math.ceil(tileLayer.area.x / CHUNK_SIZE);
+    for (let iy = 0; iy < cy; ++iy) {
+      for (let ix = 0; ix < cx; ++ix) {
+        const tilemap = new CompositeTilemap();
+        tilemap.x = tileLayer.tileSize.x * CHUNK_SIZE * ix;
+        tilemap.y = tileLayer.tileSize.y * CHUNK_SIZE * iy;
+        container.addChild(tilemap);
+      }
+    }
     return container;
   },
-  applyProps: (container, {mask: oldMask, tileLayer: oldTileLayer}, props) => {
-    const {asset, mask, tileLayer} = props;
+  applyProps: (container, {tileLayer: oldTileLayer}, props) => {
+    const {asset, tileLayer} = props;
     const extless = tileLayer.source.slice('/assets/'.length, -'.json'.length);
     const {textures} = asset;
     if (tileLayer === oldTileLayer) {
       return;
     }
-    if (oldMask) {
-      container.removeChildAt(1);
-      container.mask = undefined;
-    }
-    if (mask) {
-      container.addChild(mask);
-      container.mask = mask;
-    }
-    const tilemap = container.children[0];
-    tilemap.clear();
-    let i = 0;
-    for (let y = 0; y < tileLayer.area.y; ++y) {
-      for (let x = 0; x < tileLayer.area.x; ++x) {
-        tilemap.tile(textures[`${extless}/${tileLayer.data[i++]}`], tileLayer.tileSize.x * x, tileLayer.tileSize.y * y);
+    for (const i in tileLayer.$$chunks) {
+      if (!oldTileLayer || oldTileLayer.$$chunks[i] !== tileLayer.$$chunks[i]) {
+        const tilemap = container.children[i];
+        tilemap.clear();
+        const ax = Math.ceil(tileLayer.area.x / CHUNK_SIZE);
+        const cy = Math.floor(i / ax);
+        const cx = i % ax;
+        for (let y = 0; y < CHUNK_SIZE; ++y) {
+          for (let x = 0; x < CHUNK_SIZE; ++x) {
+            const ty = (cy * CHUNK_SIZE) + y;
+            const tx = (cx * CHUNK_SIZE) + x;
+            if (
+              tx < 0
+              || ty < 0
+              || tx >= tileLayer.area.x
+              || ty >= tileLayer.area.y
+            ) {
+              continue;
+            }
+            tilemap.tile(
+              textures[`${extless}/${tileLayer.data[ty * tileLayer.area.x + tx]}`],
+              tileLayer.tileSize.x * x,
+              tileLayer.tileSize.y * y,
+            );
+          }
+        }
       }
     }
   },
-})
+});
 
 export default function TileLayer(props) {
-  const {mask, tileLayer} = props;
+  const {tileLayer} = props;
   const asset = useAsset(tileLayer.source);
   if (!asset) {
     return false;
@@ -48,7 +70,6 @@ export default function TileLayer(props) {
       <TileLayerInternal
         {...props}
         asset={asset}
-        mask={mask}
       />
     </>
   );

app/react-components/ui.jsx

@@ -98,7 +98,7 @@ export default function Ui({disconnected}) {
       switch (payload) {
         case '-':
           if ('keyDown' === type) {
-            setScale((scale) => scale > 1 ? scale - 1 : 0.666);
+            setScale((scale) => scale > 1 ? scale - 1 : 1);
           }
           break;
         case '=':

app/util/math.js

@@ -1,3 +1,6 @@
+import alea from 'alea';
+import {createNoise2D as createSimplexNoise2D} from 'simplex-noise';
+
 export const {
   abs,
   acos,
@@ -110,6 +113,14 @@ export function clamp(n, min, max) {
   return Math.max(min, Math.min(max, n));
 }
 
+export function createNoise2D(seed = 0) {
+  return createSimplexNoise2D(createRandom(seed));
+}
+
+export function createRandom(seed = 0) {
+  return alea(seed);
+}
+
 export function distance({x: lx, y: ly}, {x: rx, y: ry}) {
   const xd = lx - rx;
   const yd = ly - ry;
@@ -167,6 +178,50 @@ export function floodwalk2D(eligible, data, {x, y, w, h}, {diagonal = false} = {
   return points;
 }
 
+export class Generator {
+
+  constructor({
+    calculate,
+    children = [],
+    covers,
+    size: {w, h},
+  }) {
+    this.calculate = calculate;
+    this.children = children;
+    this.covers = covers;
+    this.size = {w, h};
+    this.matrix = new Array(w * h).fill(0);
+  }
+
+  compute(i, position) {
+    if (!this.covers(position)) {
+      return;
+    }
+    this.matrix[i] = this.calculate(position);
+    if (!this.children) {
+      return;
+    }
+    for (let j = 0; j < this.children.length; j++) {
+      this.children[j].compute(i, position);
+    }
+  }
+
+  generate() {
+    const {w, h} = this.size;
+    let i = 0;
+    const position = {x: 0, y: 0};
+    for (let y = 0; y < h; ++y) {
+      for (let x = 0; x < w; ++x) {
+        this.compute(i++, position);
+        position.x += 1;
+      }
+      position.x -= w;
+      position.y += 1;
+    }
+  }
+
+}
+
 export function intersects(l, r) {
   if (l.x0 > r.x1) return false;
   if (l.y0 > r.y1) return false;

app/util/noise.js

@@ -0,0 +1,56 @@
+// import {Texture} from '@pixi/core';
+// import {Sprite} from '@pixi/sprite';
+
+import {bresenham, createNoise2D, TAU} from '@/util/math.js';
+
+const simplex2D = createNoise2D();
+
+// TODO - 3d noise around a circumference of length polygon perimeter
+
+export function createLayerMask(layer) {
+  const {area, hulls, tileSize} = layer;
+  const canvas = window.document.createElement('canvas');
+  if (0 === hulls.length) {
+    return Texture.from(canvas);
+  }
+  [canvas.width, canvas.height] = [area.x * tileSize.x, area.y * tileSize.y];
+  const ctx = canvas.getContext('2d');
+  ctx.fillStyle = 'rgba(0, 0, 0, 1)';
+  ctx.fillRect(0, 0, canvas.width, canvas.height);
+  ctx.fillStyle = 'rgba(255, 255, 255, 1)';
+  for (let i = 0; i < hulls.length; ++i) {
+    const hull = [...hulls[i]];
+    hull.push(hull[0]);
+    ctx.beginPath();
+    ctx.moveTo(hull[0].x, hull[0].y);
+    for (let j = 0; j < hull.length - 1; j++) {
+      const p0 = hull[j + 0];
+      const p1 = hull[j + 1];
+      const points = bresenham(p0, p1);
+      const isReversed = (
+        (p0.x > p1.x && points[0].x < points[points.length - 1].x)
+        || (p0.y > p1.y && points[0].y < points[points.length - 1].y)
+      );
+      for (
+        let k = (isReversed ? points.length - 1 : 0);
+        (isReversed ? k >= 0 : k < points.length);
+        k += (isReversed ? -1 : 1)
+      ) {
+        const {x, y} = points[k];
+        const ANGLE_SCALE = 1000;
+        const WALK_SCALE = 10;
+        const MAGNITUDE = ((tileSize.x + tileSize.y) / 2) * simplex2D(x * 100, y * 100);
+        const w = simplex2D(x * WALK_SCALE, y * WALK_SCALE);
+        const r = TAU * simplex2D(x * ANGLE_SCALE, y * ANGLE_SCALE)
+        ctx.lineTo(
+          x + Math.cos(r) * w * MAGNITUDE,
+          y + -Math.sin(r) * w * MAGNITUDE,
+        );
+      }
+    }
+    ctx.closePath();
+    ctx.fill();
+  }
+  return Texture.from(canvas);
+}
+

package-lock.json

@@ -6,7 +6,6 @@
     "": {
       "name": "silphius-next",
       "dependencies": {
-        "@leodeslf/simplex-noise": "^1.0.0",
         "@msgpack/msgpack": "^3.0.0-beta2",
         "@pixi/filter-adjustment": "^5.1.1",
         "@pixi/filter-color-matrix": "^7.4.2",
@@ -20,6 +19,7 @@
         "@remix-run/node": "^2.9.2",
         "@remix-run/react": "^2.9.2",
         "acorn": "^8.12.0",
+        "alea": "^1.0.1",
         "compression": "^1.7.4",
         "express": "^4.18.2",
         "idb-keyval": "^6.2.1",
@@ -30,6 +30,7 @@
         "react": "^18.2.0",
         "react-dom": "^18.2.0",
         "react-tabs": "^6.0.2",
+        "simplex-noise": "^4.0.1",
         "ws": "^8.17.0"
       },
       "devDependencies": {
@@ -51,6 +52,7 @@
         "eslint-plugin-jsx-a11y": "^6.7.1",
         "eslint-plugin-react": "^7.33.2",
         "eslint-plugin-react-hooks": "^4.6.0",
+        "image-size": "^1.1.1",
         "storybook": "^8.1.6",
         "vite": "^5.1.0",
         "vitest": "^1.6.0"
@@ -3026,11 +3028,6 @@
       "resolved": "https://registry.npmjs.org/@juggle/resize-observer/-/resize-observer-3.4.0.tgz",
       "integrity": "sha512-dfLbk+PwWvFzSxwk3n5ySL0hfBog779o8h68wK/7/APo/7cgyWp5jcXockbxdk5kFRkbeXWm4Fbi9FrdN381sA=="
     },
-    "node_modules/@leodeslf/simplex-noise": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/@leodeslf/simplex-noise/-/simplex-noise-1.0.0.tgz",
-      "integrity": "sha512-hsp+CfDnT9jxUjDUqiV2+eLkkdAKz6szlpcyMyXvrgs+LO8a0Gepyri1V+c6FbOfqc3ReWB282GtIE8y3Idi1A=="
-    },
     "node_modules/@mdx-js/mdx": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/@mdx-js/mdx/-/mdx-2.3.0.tgz",
@@ -7452,6 +7449,11 @@
         "url": "https://github.com/sponsors/epoberezkin"
       }
     },
+    "node_modules/alea": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/alea/-/alea-1.0.1.tgz",
+      "integrity": "sha512-QU+wv+ziDXaMxRdsQg/aH7sVfWdhKps5YP97IIwFkHCsbDZA3k87JXoZ5/iuemf4ntytzIWeScrRpae8+lDrXA=="
+    },
     "node_modules/ansi-regex": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
@@ -11355,6 +11357,21 @@
         "node": ">= 4"
       }
     },
+    "node_modules/image-size": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/image-size/-/image-size-1.1.1.tgz",
+      "integrity": "sha512-541xKlUw6jr/6gGuk92F+mYM5zaFAc5ahphvkqvNe2bQ6gVBkd6bfrmVJ2t4KDAfikAYZyIqTnktX3i6/aQDrQ==",
+      "dev": true,
+      "dependencies": {
+        "queue": "6.0.2"
+      },
+      "bin": {
+        "image-size": "bin/image-size.js"
+      },
+      "engines": {
+        "node": ">=16.x"
+      }
+    },
     "node_modules/import-fresh": {
       "version": "3.3.0",
       "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-3.3.0.tgz",
@@ -15196,6 +15213,15 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/queue": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/queue/-/queue-6.0.2.tgz",
+      "integrity": "sha512-iHZWu+q3IdFZFX36ro/lKBkSvfkztY5Y7HMiPlOUjhupPcG2JMfst2KKEpu5XndviX/3UhFbRngUPNKtgvtZiA==",
+      "dev": true,
+      "dependencies": {
+        "inherits": "~2.0.3"
+      }
+    },
     "node_modules/queue-microtask": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/queue-microtask/-/queue-microtask-1.2.3.tgz",
@@ -16488,6 +16514,11 @@
       "integrity": "sha512-wnD2ZE+l+SPC/uoS0vXeE9L1+0wuaMqKlfz9AMUo38JsyLSBWSFcHR1Rri62LZc12vLr1gb3jl7iwQhgwpAbGQ==",
       "dev": true
     },
+    "node_modules/simplex-noise": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/simplex-noise/-/simplex-noise-4.0.1.tgz",
+      "integrity": "sha512-zl/+bdSqW7HJOQ0oDbxrNYaF4F5ik0i7M6YOYmEoIJNtg16NpvWaTTM1Y7oV/7T0jFljawLgYPS81Uu2rsfo1A=="
+    },
     "node_modules/sisteransi": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/sisteransi/-/sisteransi-1.0.5.tgz",

package.json

@@ -13,7 +13,6 @@
     "test": "vitest app"
   },
   "dependencies": {
-    "@leodeslf/simplex-noise": "^1.0.0",
     "@msgpack/msgpack": "^3.0.0-beta2",
     "@pixi/filter-adjustment": "^5.1.1",
     "@pixi/filter-color-matrix": "^7.4.2",
@@ -27,6 +26,7 @@
     "@remix-run/node": "^2.9.2",
     "@remix-run/react": "^2.9.2",
     "acorn": "^8.12.0",
+    "alea": "^1.0.1",
     "compression": "^1.7.4",
     "express": "^4.18.2",
     "idb-keyval": "^6.2.1",
@@ -37,6 +37,7 @@
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "react-tabs": "^6.0.2",
+    "simplex-noise": "^4.0.1",
     "ws": "^8.17.0"
   },
   "devDependencies": {
@@ -58,6 +59,7 @@
     "eslint-plugin-jsx-a11y": "^6.7.1",
     "eslint-plugin-react": "^7.33.2",
     "eslint-plugin-react-hooks": "^4.6.0",
+    "image-size": "^1.1.1",
     "storybook": "^8.1.6",
     "vite": "^5.1.0",
     "vitest": "^1.6.0"

public/assets/ambient/blossom.json

@@ -0,0 +1 @@
+{"frames":{"":{"frame":{"x":0,"y":0,"w":128,"h":160},"spriteSourceSize":{"x":0,"y":0,"w":128,"h":160},"sourceSize":{"w":128,"h":160}}},"meta":{"format":"RGBA8888","image":"./blossom.png","scale":1,"size":{"w":128,"h":160}}}

public/assets/ambient/flower.json

@@ -0,0 +1 @@
+{"frames":{"":{"frame":{"x":0,"y":0,"w":32,"h":32},"spriteSourceSize":{"x":0,"y":0,"w":32,"h":32},"sourceSize":{"w":32,"h":32}}},"meta":{"format":"RGBA8888","image":"./flower.png","scale":1,"size":{"w":32,"h":32}}}

public/assets/ambient/shrub.json

@@ -0,0 +1 @@
+{"frames":{"":{"frame":{"x":0,"y":0,"w":32,"h":32},"spriteSourceSize":{"x":0,"y":0,"w":32,"h":32},"sourceSize":{"w":32,"h":32}}},"meta":{"format":"RGBA8888","image":"./shrub.png","scale":1,"size":{"w":32,"h":32}}}

public/assets/ambient/tree.json

@@ -0,0 +1 @@
+{"frames":{"":{"frame":{"x":0,"y":0,"w":96,"h":160},"spriteSourceSize":{"x":0,"y":0,"w":96,"h":160},"sourceSize":{"w":96,"h":160}}},"meta":{"format":"RGBA8888","image":"./tree.png","scale":1,"size":{"w":96,"h":160}}}

public/assets/tileset.js

@@ -6,16 +6,25 @@ import {basename, dirname, extname, join} from 'node:path';
 import imageSize from 'image-size';
 
 const tileset = process.argv[2];
-const w = parseInt(process.argv[3]);
-const h = parseInt(process.argv[4]);
+let w = parseInt(process.argv[3]);
+let h = parseInt(process.argv[4]);
 
 const {width, height} = imageSize(tileset);
 
+if (0 === w) {
+  w = width;
+}
+if (0 === h) {
+  h = height;
+}
+
+const total = (width / w) * (height / h);
+
 const json = {
   frames: {},
   meta: {
     format: 'RGBA8888',
-    image: tileset,
+    image: ['.', basename(tileset)].join('/'),
     scale: 1,
     size: {w: width, h: height},
   },
@@ -26,7 +35,7 @@ const extlessPath = join(dirname(tileset), basename(tileset, extname(tileset)));
 let i = 0;
 for (let y = 0; y < height; y += h) {
   for (let x = 0; x < width; x += w) {
-    json.frames[join(extlessPath, `${i++}`)] = {
+    json.frames[1 === total ? '' : join(extlessPath, `${i++}`)] = {
       frame: {x, y, w, h},
       spriteSourceSize: {x: 0, y: 0, w, h},
       sourceSize: {w, h},