brianbob12 / robot_gym Goto Github PK

A platformer where you are aided by clones learning from your behaviour.

License: GNU General Public License v3.0

Java 81.24% Python 18.76%

tensorflow tensorflow2 python java-swing nerual-network perceptron-learning-algorithm dqn game double-dqn platformer-game

robot_gym's Introduction

Robot_Gym

This is a tool to explore the implentation of the Double Deep Q Learning Algorithm. It is very useful for looking at reward hacking and perceptron optimization.

The environemnt is a very simple 2D physics engine written in java.

The machine learning is written in python and uses Tensorflow.

robot_gym's People

Contributors

Stargazers

Watchers

robot_gym's Issues

Grid returns 900 elements in stead of 864 in some caseses.

background lag does not really work.

Onplatrom functino in Competitor returns true when next to object.

Game frezes sometimes

In testing, when the player is jumping around the sometimes game freezes. Sometimes it happens on collisions, sometimes not. It seems it only happens when the player is moving.

Saving networks to storage is too slow

When networks of large sizes are being saved to storage it can take a lot of time to write to storage. This is likely due to the data being parsed into a string.

This is an issue in Perceptron.py(src/python/Network/Perceptron.py) under the function export.

Possible solutions:

Shorten float resolution on export to reduce storage
Write to a file without converting to string (.dat maybe)

#export currently loaded network to file

def export(self,path):
    import os
    try:
        os.mkdir(path)
    except FileExistsError:
        pass
    except Exception as e:
        raise(badPath(path))

    #store hyperperanmeters in hyper.txt
    with open(path+"\\hyper.txt","w") as f:
        f.write(str(self.inputSize)+"\n")
        f.write(str(self.outputSize)+"\n")
        for i,v in enumerate(self.nHidden):
            f.write(str(v))
            if(i+1!=len(self.nHidden)):
                f.write(",")
        f.write("\n")
        for i,v in enumerate(self.activation):
            f.write(v)
            if(i+1!=len(self.activation)):
                f.write(",")
        f.write("\n")

    #set weight and bias files as comma sperated values
    #note: some percision will be lost when converting binary floats to strings
    for i in range(len(self.nHidden)+1):
        with open(path+"\\w"+str(i)+".csv","w") as f:
            for j in range(self.weights[i].get_shape()[0]):
                for k in range(self.weights[i][j].get_shape()[0]):
                    f.write(str(float(self.weights[i][j][k])))
                    if k+1!=self.weights[i][j].get_shape()[0]:
                        f.write(",")
                f.write("\n")
        with open(path+"\\b"+str(i)+".csv","w") as f:
            for j in range(self.biases[i].get_shape()[0]):
                f.write(str(float(self.biases[i][j])))
                if j+1!= self.biases[i].get_shape()[0]:
                    f.write(",")

Deal with slow training procedure

Fix whatever this is.

"WARNING:tensorflow:5 out of the last 45 calls to <function Perceptron.evaluate at 0x0000019BF16E05E0> triggered tf.function retracing. Tracing is expensive and the excessive number of tracings is likely due to passing python objects instead of tensors. Also, tf.function has experimental_relax_shapes=True option that relaxes argument shapes that can avoid unnecessary retracing. Please refer to https://www.tensorflow.org/tutorials/customization/performance#python_or_tensor_args and https://www.tensorflow.org/api_docs/python/tf/function for more details."

Grids, they ain't workin'

Mostly zeros. look over the grid code.

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Agent cannot jump on boxes

In the testing scenario, the agent jumps through boxes.

Tileable texture breaks

The background texture in GameArea breaks when you move the camera high up. It disappears and repeats as you move the camera around.

problem is in userInterface/GameArea.java

Broken code:
`
//background stuff

	if(this.backroundTex) {

		for(int x=(int)(xLOW-xLOW%this.backgroundLen);x<xUP+(this.backgroundLen-xUP%this.backgroundLen);x+=this.backgroundLen) {

			for(int y=(int)(yLOW-yLOW%this.backgroundLen);y<yUP+(this.backgroundLen-yUP%this.backgroundLen);y+=this.backgroundLen) {

				g.drawImage(this.background,(int)((x-xLOW)*convRatioX),(int)(this.getHeight()-(y-yLOW)*convRatioY),(int) (this.backgroundLen*convRatioX),-(int) (this.backgroundLen*convRatioY),null);

			}

		}

	}

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