switch to godot 4 (alpha)

justfile

@@ -1,7 +1,21 @@
 godot_project := "./godot-impl/project.godot"
+godot_url := "https://downloads.tuxfamily.org/godotengine/4.0/alpha8/Godot_v4.0-alpha8_linux.64.zip"
+godot_exe := "Godot_v4.0-alpha8_linux.64"
+godot_exe_dir := "~/bin"
+godot_path := godot_exe_dir + "/" + godot_exe
 
-run:
-	nixGL zig build run
+setup:
+	#!/usr/bin/env bash
+	set -euo pipefail
+	if [ ! -e {{godot_path}} ]; then
+		curl {{godot_url}} -O
+		unzip Godot*.zip
+		mv {{godot_exe}} {{godot_exe_dir}}
+		rm Godot*.zip
+	fi
 
-edit:
-	nixGL godot {{godot_project}}
+#run:
+#	nixGL zig build run
+
+edit: setup
+	{{godot_exe}} {{godot_project}}