From a82b9ba9e92a188fd2bf2be85384414a4121d119 Mon Sep 17 00:00:00 2001
From: Astatin <git@astatin.live>
Date: Wed, 18 Jun 2025 19:46:59 +0200
Subject: Add build script for building a self containing linux executable

---
 .github/workflows/game.yml | 40 ++++++++++++++++++++++++++++++++++++++++
 Makefile                   | 26 +++++++++++++++++++++++---
 dialogues/text.gbasm       |  1 +
 scripts/makeself-start.sh  |  2 ++
 text.gbasm                 |  1 +
 5 files changed, 67 insertions(+), 3 deletions(-)
 create mode 100644 .github/workflows/game.yml
 create mode 100644 scripts/makeself-start.sh

diff --git a/.github/workflows/game.yml b/.github/workflows/game.yml
new file mode 100644
index 0000000..b0bc5df
--- /dev/null
+++ b/.github/workflows/game.yml
@@ -0,0 +1,40 @@
+name: Game
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Download makeself
+      run: wget https://github.com/megastep/makeself/releases/download/release-2.5.0/makeself-2.5.0.run
+    - name: Extract makeself
+      run: sh ./makeself-2.5.0.run
+
+    - name: Download assembler
+      run: wget https://github.com/AstatinChan/gameboy-asm/releases/download/latest/gbasm_linux-x86_64
+    - name: Make assembler executable
+      run: chmod +x gbasm_linux-x86_64
+
+    - name: Build ROM
+      run: make GBASM=./gbasm_linux-x86_64 build/main.rom && cp build/main.rom main.gb
+    - name: Build Linux Makeself Executable
+      run: make GBASM=./gbasm_linux-x86_64 MAKESELF=./makeself-2.5.0/makeself.sh build/game_linux_x86-64 && cp build/game_linux_x86-64 .
+
+    - uses: "marvinpinto/action-automatic-releases@latest"
+      with:
+        repo_token: "${{ secrets.GITHUB_TOKEN }}"
+        automatic_release_tag: "latest"
+        prerelease: true
+        title: "Development Build"
+        files: |
+          game_linux_x86-64
+          main.gb
diff --git a/Makefile b/Makefile
index 2c502c5..e4330c9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,6 @@
+GBASM=gbasm
+MAKESELF=makeself
+
 all: run
 
 .PHONY: clean sclean
@@ -24,11 +27,11 @@ build/main.rom: build/main.rom.unsigned
 
 build/main.rom.unsigned: main.gbasm tileset.gbasm text.gbasm dialogues/text.gbasm map/maps.gbasm $(wildcard ./*.gbasm) $(wildcard ./**/*.gbasm) $(wildcard ./**/**/*.gbasm)
 	mkdir -p build
-	gbasm $< $@ > build/main.sym
+	$(GBASM) $< $@ > build/main.sym
 
 build/tileset-dump.rom: scripts/tileset-dump.gbasm
 	mkdir -p build
-	gbasm $< $@ > /dev/null
+	$(GBASM) $< $@ > /dev/null
 
 build/tileset-dump.rom.vram.dump: build/tileset-dump.rom
 	gb --skip-bootrom --stop-dump-state $<
@@ -36,6 +39,23 @@ build/tileset-dump.rom.vram.dump: build/tileset-dump.rom
 build/tileset.png: build/tileset-dump.rom.vram.dump scripts/extract-vram-tileset.py
 	python scripts/extract-vram-tileset.py $< $@
 
+build/makeself/gb_linux-x86_64:
+	mkdir -p build/makeself
+	wget https://github.com/AstatinChan/gameboy-emulator/releases/download/latest/gb_linux-x86_64 -O $@
+	chmod +x $@
+
+build/makeself/main.rom: build/main.rom
+	mkdir -p build/makeself
+	cp $< $@
+
+build/makeself/start.sh: ./scripts/makeself-start.sh
+	mkdir -p build/makeself
+	cp $< $@
+	chmod +x $@
+
+build/game_linux_x86-64: build/makeself/start.sh build/makeself/main.rom build/makeself/gb_linux-x86_64
+	$(MAKESELF) ./build/makeself $@ "Astatin's Bunny Game" ./start.sh
+
 run: build/main.rom
 	mkdir -p recordings
 	gb $< --record-input "./recordings/$(shell date -Iseconds).record"
@@ -51,5 +71,5 @@ clean:
 
 sclean: clean
 	rm tileset.gbasm
-	find . -name "*.gbtxt" | sed 's/\.gbtxt$/.gbasm/' | xargs rm
+	find . -name "*.gbtxt" | sed 's/\.gbtxt$$/.gbasm/' | xargs rm
 	rm map/maps/*.map.gbasm map/maps.gbasm
diff --git a/dialogues/text.gbasm b/dialogues/text.gbasm
index 4bb2b8e..c952b74 100644
--- a/dialogues/text.gbasm
+++ b/dialogues/text.gbasm
@@ -1,3 +1,4 @@
+; THIS FILE IS GENERATED AUTOMATICALLY, DO NOT CHANGE
 Empty:
 .DB , 0xff
 Bunny_Header_Text:
diff --git a/scripts/makeself-start.sh b/scripts/makeself-start.sh
new file mode 100644
index 0000000..8388ad6
--- /dev/null
+++ b/scripts/makeself-start.sh
@@ -0,0 +1,2 @@
+#!/bin/sh
+./gb_linux-x86_64 main.rom --title "Astatin's Bunny Game" $*
diff --git a/text.gbasm b/text.gbasm
index 358dbf9..f31d6a1 100644
--- a/text.gbasm
+++ b/text.gbasm
@@ -1,3 +1,4 @@
+; THIS FILE IS GENERATED AUTOMATICALLY, DO NOT CHANGE
 Hop_Attack_Menu_Txt:
 .DB 0x91, 0x98, 0x99, 0xff
 Heal_Attack_Menu_Txt:
-- 
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