Write a python script to generate byte arrays.

This is preparing for textures for the Flappy Bird clone.

src/flappyBird/Assets.hh

@@ -0,0 +1,7 @@
+#ifndef ASSETS_HH
+#define ASSETS_HH
+#include <vector>
+namespace assets {
+	std::vector<unsigned char> bird();
+}
+#endif

src/flappyBird/generateAssets.py

@@ -0,0 +1,41 @@
+import argparse
+from pathlib import Path
+from PIL import Image
+
+parser = argparse.ArgumentParser()
+parser.add_argument("function")
+parser.add_argument("input")
+parser.add_argument("output")
+
+args = parser.parse_args()
+
+function = args.function
+input = Path(args.input)
+output = Path(args.output)
+
+if not input.exists():
+	print("Input " + str(path.absolute()) + " not found.")
+	raise SystemExit(1)
+
+hexList = list()
+
+with Image.open(input) as image:
+	imageBytes = bytes(image.getdata())
+	byteList = list(imageBytes)
+
+	for byte in byteList:
+		hexList.append(f'0x{byte:02x}')
+
+
+code = f"""#include <Assets.hh>
+#include <vector>
+
+namespace assets {{
+std::vector<unsigned char> {function}() {{
+	return {{ {','.join(hexList)} }};
+}}
+}}
+"""
+
+with open(output, 'w') as f:
+	f.write(code)

src/flappyBird/meson.build

@@ -5,5 +5,8 @@ flappy_sources = [
 	'MainMenu.cc'
 ]
 
-flappy_bird = static_library('flappyBird', flappy_sources, dependencies: deps, include_directories: incdirs)
+python3 = find_program('python3')
+bird = custom_target('bird', output: 'birdSprite.cc', input: ['generateAssets.py', 'assets/yellowbird-downflap.png'], command: [python3, '@INPUT0@', 'bird', '@INPUT1@', '@OUTPUT@'])
+
+flappy_bird = static_library('flappyBird', [flappy_sources, bird], dependencies: deps, include_directories: incdirs)
 flappy_dep = declare_dependency(link_with: [flappy_bird], include_directories: incdirs)