add docker-based build script

relates to #1487

Dockerfile

@@ -0,0 +1,33 @@
+FROM eclipse-temurin:21
+
+WORKDIR /build
+
+RUN apt-get -yq update && \
+  apt-get upgrade -yq && \
+  apt-get -y --no-install-recommends \
+  install \
+    ant \
+    ca-certificates \
+    curl \
+    sed \
+  && apt-get -y clean \
+  && rm -rf /var/lib/apt/lists/*
+
+RUN curl -OL https://dlcdn.apache.org/flex/4.16.1/binaries/apache-flex-sdk-4.16.1-bin.tar.gz
+RUN tar xvf apache-flex-sdk-4.16.1-bin.tar.gz
+RUN mkdir -p apache-flex-sdk-4.16.1-bin/frameworks/libs/player/27.0
+
+RUN curl -L \
+  https://github.com/nexussays/playerglobal/raw/master/27.0/playerglobal.swc \
+  -o apache-flex-sdk-4.16.1-bin/frameworks/libs/player/27.0/playerglobal.swc
+
+RUN sed -i'' 's|{playerglobalHome}|libs/player|g' apache-flex-sdk-4.16.1-bin/frameworks/flex-config.xml
+
+RUN cat apache-flex-sdk-4.16.1-bin/frameworks/flex-config.xml
+
+COPY . /build/
+
+ENV FLEX_HOME=/build/apache-flex-sdk-4.16.1-bin
+
+CMD ant debug && \
+  mv /build/target/CoC-debug.swf /build/artifacts/CoC-debug.swf

README.md

@@ -5,26 +5,29 @@ Corruption-of-Champions-Mod
 
 NOTE: CONTAINS MATURE CONTENT. ADULTS ONLY
 
-CoC Mod source from Kitteh6660. Original game by Fenoxo.  
-Modifications by everyone at:  
+CoC Mod source from Kitteh6660. Original game by Fenoxo.
+Modifications by everyone at:
 https://github.com/Kitteh6660/Corruption-of-Champions-Mod/graphs/contributors
 
 Everything in original game is copyright Fenoxo (fenoxo.com).
 
 Check out the wiki for information and the FAQ.
 
-**Playable releases can be found in the Releases tab.**  
-**Android Releases:** https://github.com/Hexxah/CoC-MOD-Android-Build  
+**Playable releases can be found in the Releases tab.**
+**Android Releases:** https://github.com/Hexxah/CoC-MOD-Android-Build
 
 **Discord Server:** https://discord.gg/R25MZEx
 
-# Building with ant
-## Prerequisites
+# Building
+
+## With ant
+
+### Prerequisites
 - Java JRE installed
 - Ant installed
 - Environment variable FLEX_HOME set to the flex SDK path
 
-## Building
+### Building
 To build run:
 
 `ant`
@@ -51,3 +54,13 @@ example:
 `ant test-single -Dtestclass=classes.Items.MutationsTest`
 
 This allows for quick testing or debugging of classes without running all tests.
+
+## With Docker
+
+With Docker and Docker Compose installed, run:
+
+```
+docker compose build && docker compose up
+```
+
+The resulting `.swf` will be in the `artifacts` directory.

docker-compose.yaml

@@ -0,0 +1,8 @@
+services:
+  build:
+    image: coc-ant
+    build:
+      context: .
+    restart: no
+    volumes:
+      - ./artifacts:/build/artifacts