Flower Evolver WASM
Adapted Flower Evolver code from EcoSystem to be able to make, mutate, reproduce flowers in the browser without needing a backend.
check the website here
[!IMPORTANT] You will need to have a canvas object with id="canvas" to use the wasm functions or if you're running the wasm module inside a web worker you will need to initialize at the start: self.canvas = new OffscreenCanvas(radius * 2, radius * 3);
Building
You will need emsdk to build JsonBox and EvoAI
set FE_EXPORT=TRUE if using modules.
git clone https://github.com/emscripten-core/emsdk.git
cd emsdk && ./emsdk install latest && ./emsdk activate latest
source ./emsdk_env.sh
cd ..
git clone https://github.com/cristianglezm/JsonBox.git
cd JsonBox && mkdir build && cd build
emcmake cmake -DCMAKE_INSTALL_PREFIX="$(pwd)/install" ..
make -j4 install
cd ..
# you will need permision for EvoAI (it will soon be open sourced)
git clone https://github.com/cristianglezm/EvoAI.git
cd EvoAI && git checkout refactor-activations
mkdir build && cd build
emcmake cmake -DEvoAI_BUILD_STATIC=TRUE -DJsonBox_ROOT=../JsonBox/build/install -DCMAKE_INSTALL_PREFIX="$(pwd)/install" ..
make -j4 install
cd ..
emcmake cmake -DFE_EXPORT=FALSE -DEvoAI_ROOT=EvoAI/build/install -DJsonBox_ROOT=JsonBox/build/install ..
make -j4 dist
cd ../dist && emrun index.htmlBrowser usage
var Module = {};
fetch('public/FlowerEvolver.wasm')
.then(response => response.arrayBuffer())
.then(buffer => {
Module.wasmBinary = buffer;
let script = document.createElement('script');
script.src = 'public/FlowerEvolver.js';
script.setAttribute("type", "text/javascript");
document.body.appendChild(script);
});
// then after is loaded
// const genome = Module.makeFlower(64, 3, 6.0, 1.0);
// ...Framework usage
install it
npm install @cristianglezm/flower-evolver-wasm
import fe from '@cristianglezm/flower-evolver-wasm';
//in a state manager like pinia:
export const useFlowersStore = defineStore('FlowersStore', {
state: () => ({
fe: null,
canvas: document.getElementById("canvas"),
}),
getters: {},
actions:{
async loadFE(){
this.fe = await fe();
},
});
//then when using the store you will need to call
const store = useFlowersStore(pinia);
store.loadFE();
//...worker usage
app
let worker = new Worker('worker.js');
worker.onmessage = () => {
// do stuff
};
// ...
const fn = () => {
let canvas = document.createElement("canvas").transferControlToOffscreen();
worker.postMessage({canvas: canvas}, [canvas]);
}worker.js
import fe from '@cristianglezm/flower-evolver-wasm';
let FE;
self.onmessage = async (e) => {
self.canvas = e.data.canvas;
// or use its own canvas
// self.canvas = new OffscreenCanvas(128, 192);
// the canvas width must be radius * 2 and the height radius * 3
if(!FE){
FE = await fe();
}
// use functions from FE module.
let f = {};
try{
f.genome = FE.makeFlower(64, 3, 6.0, 1.0);
}catch(e){
// handle error
let msg = FE.getExceptionMessage(e);
}
// convert image data to send, store, etc
let blob = await self.canvas.convertToBlob();
let frs = await new FileReaderSync();
f.image = await frs.readAsDataURL(blob);
}License
SFML parts in include/SFML and src/SFML are under its own license.
the rest of the code is licensed under apache 2.0
Copyright 2023 Cristian Gonzalez cristian.glez.m@gmail.com
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.