# Project 2: Sebastian Koall - Material Point Method [Initial Presentation](presentation/presentation-2018-05-16.md) [Next Meeting](meeting/meeting-2018-05-22.md) ## Dev Notes This project separates model in a separate class and module from the web component. This is does not work well with our live development tools at the moment. But we can achieve a Smalltalk like experience by at least updating the class (and methods). The problem is that we get a new class after reloading a module. We could fix that and hook into module loading semantics or accept it for now and update specific (or all?) instances by changing the link to the prototype. ```javascript var mpm = document.querySelector("lively-mpm") mpm.animation.particles = mpm.animation.particles.slice(0,12) mpm.animation.initParticles() import ElasticBodies from "doc/PX2018/project_2/elasticbodies.js" // after updating elasticbodies.js, the class changes mpm.animation.constructor === ElasticBodies // we can fix this, so we can do live development again.... mpm.animation.__proto__ = ElasticBodies.prototype // #TODO generalize this, to do a "become" ```