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Flappy bird typing tutorial how to#
Flappy bird typing tutorial update#
Flappy bird typing tutorial android#
Flappy bird typing tutorial code#

Flappy bird typing tutorial code#

This is only necessary based on the code I provide however you may change the folder name to something of your preference. You should place the images in a folder called "resources" which you will place under the bin folder in your program's files. zip I include below this step to ensure you have exactly what is needed. I wouldn't grab the step's images above for your program. All three images are found above and they should be named as follows:īlue_bird.png tube_bottom.png tube_top.png I rotated the pipe 180 degrees and used two separate images for the top and bottom pipes. I designed a static blue bird and a pipe for the obstacle. You will inevitably think of added functionality while programming, so have the vast majority of the concept finalized beforehand.īecause my game idea was remaking the popular Flappy Bird, this stage was limited to designing the graphics to be used in the program. Take time to put together a "95% model," which has everything you think your game will need on the conceptual level. Your code will be written and rewritten wasting a significant amount of time. Here you make sketches and draft ideas on your game's functionality. But, that input is not taken into account by the learner.This is always the first stage of building any game. Right now, you can click on the game to make Flappy Bird jump.

Another way to make the learning faster would be to let users provide "good" input.

This can be improved by instantiating more than 1 bird in the beginning and have all of them contribute their "learnings" to the same Q array.

It took about 6-7 hours to train Flappy Bird to be good enough (150 score).

Set the current state to s' and start over. The alpha I chose is 0.7 because we have a deterministic state and I wanted it to be pretty hard to un-learn something.

Flappy bird typing tutorial update#

Update the Q array according to the Q Learning rule. +1 if the bird is still alive, -1000 otherwise. Observe new state, s', and the reward associated with it. Observe what state Flappy Bird is in and perform the action that maximizes expected reward. To break ties I chose "Do Nothing" because that is the more common action. The array Q is initialized with zeros and I always chose the best action, the action that will maximize my expected reward. The reward structure is purely based on the "Life" parameter.

Horizontal distance from next pair of pipesįor each state, I have two possible actions.

I discretized my space over the folowing parameters. Is a nice, concise description of Q Learning. That means that I didn't have to model the dynamics of Flappy Bird how it rises and falls, reacts to clicks and other things of that nature. I used Q Learning because it is a model free form of reinformcent learning. There are many variants to be used in different situations: Policy Iteration, Value Iteration, Q Learning, etc. It then finds itself in a new state and gets a reward based on that. Here's the basic principle: the agent, Flappy Bird in this case, performs a certain action in a state. I ripped out the typing component and added some javascript Q Learning code to it. But it takes about 1 - 2 seconds to get a screenshot and that was definitely not fast or responsive enough. To get screenshots and send click commands.

Flappy bird typing tutorial android#

Initially, I wanted to create this hack for the Android app and I was planning to use

The video above shows the results of a really well trained Flappy Bird that basically keeps dodging pipes forever.

Flappy bird typing tutorial how to#

People have also created some interesting variants of the game -Īfter playing the game a few times (read few hours), I saw the opportunity to practice my machine learning skills and try and get Flappy Bird to learn how to play the game by itself. On Google Play or the App Store, it did not stop folks from creating very good replicas for the web. This is a hack for the popular game, Flappy Bird.