Making a flappy bird game using Neural Network in React - Watch Online
Each bird has a brain in this game. To implement brain part of the code, I create a think function and use Neural Network to make decisions.
this.brain = brain || new NeuralNetwork(4, 10, 2) think = () => { let pipe = closestPipe(this.pipes) let inputs = [] inputs = [ this.posY, pipe.leftY + pipe.height + BIRD_RADIUS * 2, pipe.leftY + pipe.height + pipe.distance - BIRD_RADIUS * 2, pipe.width + BIRD_RADIUS * 2, ] let action = this.brain.predict(inputs); if (action[1] > action[0]) { this.jump() } } At the end of the each step it generates N new birds using the tactics (copy brain) of best birds.
generateBirds = () => { for(let i=0; i<this.birdsCount; i++) { if(this.bestBirds && this.bestBirds.length) { var bestBirdIndex = i%this.bestBirds.length this.birds.push(new Bird(this.bestBirds[bestBirdIndex].brain)) } else { this.birds.push(new Bird()) } } } Download code from repository
Install all packages and dependencies
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