add simulator installation scripts

scripts/install_mujoco.sh

@@ -0,0 +1,63 @@
+#!/bin/bash
+# Install the MuJoCo simulator and the Python wrapper (mujoco_py) provided by OpenAI
+# You have to provide the directory where to install the Mujoco and mujoco_py packages and which contains the mjkey.txt
+# References:
+# - install mujoco: https://www.roboti.us/index.html
+# - install mujoco_py: https://github.com/openai/mujoco-py
+
+# Define few variables
+ORIGIN_DIR=$PWD
+
+# install mujoco
+
+# Pass as the first argument the location where to install MuJoCo and mujoco_py
+if [[ -z $1 ]]; then
+    echo "Specify the location where to install the MuJoCo and mujoco_py source directories as the first argument."
+    exit
+fi
+MUJOCO_PATH=$1
+cd $MUJOCO_PATH
+
+# check OS
+if [[ "$OSTYPE" == "linux-gnu" ]]; then  # LINUX
+    PACKAGE="mujoco200_linux"
+elif [[ "$OSTYPE" == "darwin"* ]]; then  # Mac OSX
+    PACKAGE="mujoco200_macos"
+elif [[ "$OSTYPE" == "msys" ]]; then  # Windows
+    PACKAGE="mujoco200_win64"
+else
+    echo "This OS is not supported. Expecting a Linux, Mac OSX, or Windows system."
+    exit
+fi
+
+# download package and unzip it
+wget "https://www.roboti.us/download/${PACKAGE}.zip"
+unzip "${PACKAGE}.zip"
+
+# install mujoco_py
+sudo apt install libosmesa6-dev libgl1-mesa-glx libglfw3
+
+export MUJOCO_PY_MJKEY_PATH="${MUJOCO_PATH}/mjkey.txt"
+export MUJOCO_PY_MJPRO_PATH="${MUJOCO_PATH}/${PACKAGE}"
+export MUJOCO_PY_MUJOCO_PATH="${MUJOCO_PATH}/${PACKAGE}"
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:${MUJOCO_PATH}/${PACKAGE}/bin
+export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libGLEW.so  # :/usr/lib/x86_64-linux-gnu/libGL.so  # for visualization
+
+# write variables to export in the ~/.bashrc file, and source it
+cd
+echo "" >> .bashrc
+echo "# MuJoCo" >> .bashrc
+echo "export MUJOCO_PY_MJKEY_PATH=${MUJOCO_PATH}/mjkey.txt" >> .bashrc
+echo "export MUJOCO_PY_MJPRO_PATH=${MUJOCO_PATH}/${PACKAGE}" >> .bashrc
+echo "export MUJOCO_PY_MUJOCO_PATH=${MUJOCO_PATH}/${PACKAGE}" >> .bashrc
+echo "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:${MUJOCO_PATH}/${PACKAGE}/bin" >> .bashrc
+echo "export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libGLEW.so" >> .bashrc
+# source .bashrc
+
+git clone https://github.com/openai/mujoco-py
+cd mujoco-py
+pip install -e .
+# sudo python setup.py install
+
+# return to the original directory
+cd $ORIGIN_DIR