Scans source for comment annotations and create a Lua script to be used with FCEUX

generate_debug_lua.rb

debug_prints = []

# scan all source files for ;! annotations
(Dir.glob("src/**/*.h") + Dir.glob("src/**/*.s")).each do |file|
	File.open(file, "r") do |file|
		capture_next_line = false
		file.readlines.each do |line|
			if capture_next_line
				debug_prints[-1][:name] = line.strip.split(":").first
				capture_next_line = false
			end

			if line =~ /\;\!(\s)*debug_printb/
				debug_prints.push({:message => line.split('debug_printb').last.strip, :size => "byte"})
				capture_next_line = true
			elsif line =~ /\;\!(\s)*debug_printw/
				debug_prints.push({:message => line.split('debug_printw').last.strip, :size => "word"})
				capture_next_line = true
			end
		end
	end
end

# now open the vice file and match each debug_print
File.open("bin/main.vice", "r") do |file|
	file.readlines.each do |line|
		debug_prints.each do |p|
			if line.split(" ").last.strip[1..-1] == p[:name]
				p[:address] = line.split(" ")[1]
			end
		end
	end
end

print_statements = ""
y = 8
debug_prints.each do |d|
	if d[:size] == "word"
		print_statements += "\tgui.text(0, #{y}, \"#{d[:message]}: \" .. string.format(\"%X\", memory.readword(0x#{d[:address]})));\n"
	elsif
		print_statements += "\tgui.text(0, #{y}, \"#{d[:message]}: \" .. string.format(\"%X\", memory.readbyte(0x#{d[:address]})));\n"
	end
	y += 8
end

# create a debug.lua file
File.open("bin/debug.lua", "w") do |file|
	file.write %(
while (true) do
	emu.frameadvance();
#{print_statements}
end;
	)
end