Add Docker support

Dockerfile

@@ -0,0 +1,41 @@
+FROM ubuntu:20.04 as build
+ENV TZ=Etc/UTC
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+
+# Install dependencies
+## apt install python & libraries
+RUN apt-get update && \
+    apt-get install -y \
+        python3 \
+        python3-pip \
+        libjpeg-dev \
+        zlib1g-dev \
+        libsdl2-dev \
+        git \
+        wget
+
+## install python dependencies
+COPY requirements.txt /tmp/
+RUN pip3 install -r /tmp/requirements.txt
+
+## Windows build dependencies
+#RUN apt-get install -y \
+#        binutils-mingw-w64
+#RUN apt-get install -y \
+#        tcc \
+#        unzip
+
+## Switch build dependencies
+### Install devkitpro for switch build
+#RUN wget https://apt.devkitpro.org/install-devkitpro-pacman && \
+#    chmod +x ./install-devkitpro-pacman && \
+#    sed -i 's/apt-get/apt-get -y /g' ./install-devkitpro-pacman && \
+#    ./install-devkitpro-pacman
+### Install switch development tools
+#RUN ln -s /proc/self/mounts /etc/mtab
+#RUN dkp-pacman --noconfirm -S switch-dev switch-sdl2 switch-tools
+
+RUN mkdir /zelda3
+WORKDIR /zelda3
+
+CMD echo 'usage: docker run --rm --mount type=bind,source="$(pwd)",destination=/zelda3 zelda3 make'

README.md

@@ -109,6 +109,28 @@ make # Add -j$(nproc) to build using all cores ( Optional )
 nxlink -s zelda3.nro
 ```
 
+## Building using Docker
+In case you have Docker/Podman intalled you can build a docker image using the `Dockerfile` instead of using the above methods.
+
+### Build the Docker Image
+
+This only needs to be done one time unless the `Dockerfile` has been updated/changed
+
+Clone this repo first
+
+Make sure you are in the root path of this repo
+```sh
+docker build . -t zelda3
+```
+
+### Build the game
+Ensure the rom named zelda3.sfc is in the `tables` directory
+
+#### Build for Linux
+```sh
+docker run --rm --mount type=bind,source="$(pwd)",destination=/zelda3 zelda3 make
+```
+
 ## More Compilation Help
 
 Look at the wiki at https://github.com/snesrev/zelda3/wiki for more help.