Add web app frontend, restructure almost everything

- Add web app frontend code
- Add .html, .js, .wasm to .gitignore
- Restructure Makefile to work with emmake, add build targets for web app,
  add .html, .js, .wasm to make clean
- Explain the pattern in the README
- Add explanation of web frontend to README
- Restructure README generally for better clarity
- Remove "make web app version" from todos in README
- Set Doxygen to EXTRACT_ALL so trivial and useless doc comments are not
  needed when the naming suffices to be explanatory.
- Move ascii_binary_str_to_ints to library code in new file
  hitomezashi_utils.c (and corresponding header) as web app also needs it.
- Fix SDL2 include path so it also works with Emscripten
- Remove some cluttering and unnecessary doc comments
- Improve some doc comments

1 files changed, 16 insertions, 10 deletions

diff --git a/Makefile b/Makefile
index 7b8e235..b200abf 100644
--- a/Makefile
+++ b/Makefile
@@ -1,27 +1,33 @@
 .POSIX:
 
-CC = gcc
-CFLAGS = -std=c11 -Wall -Wno-unused-function --pedantic-errors -O3 `sdl2-config --cflags` -I./lib/
+CFLAGS = -std=c11 -Wall -Wno-unused-function --pedantic-errors -O3 `sdl2-config --cflags`
 LDLIBS = `sdl2-config --libs`
-AR = ar
-ARFLAGS = rcs
 
-all: libhitomezashi.a hitomezashi_cli
+ARFLAGS = rcs
 
-libhitomezashi.a: hitomezashi.o
-	$(AR) $(ARFLAGS) libhitomezashi.a hitomezashi.o
+all:
 
+libhitomezashi.a: hitomezashi.o hitomezashi_utils.o
+	$(AR) $(ARFLAGS) libhitomezashi.a hitomezashi.o hitomezashi_utils.o
 hitomezashi.o: lib/hitomezashi.c lib/hitomezashi.h
 	$(CC) -c $(CFLAGS) lib/hitomezashi.c
+hitomezashi_utils.o: lib/hitomezashi_utils.c lib/hitomezashi_utils.h
+	$(CC) -c $(CFLAGS) lib/hitomezashi_utils.c
+
 
 hitomezashi_cli: hitomezashi_cli.o libhitomezashi.a
 	$(CC) $(LDFLAGS) $(LDLIBS) -o hitomezashi_cli hitomezashi_cli.o libhitomezashi.a
-
 hitomezashi_cli.o: cli/hitomezashi_cli.c cli/hitomezashi_cli.h
-	$(CC) -c $(CFLAGS) -o hitomezashi_cli.o cli/hitomezashi_cli.c
+	$(CC) -c $(CFLAGS) -I./lib/ -I./cli/optparse/ -o hitomezashi_cli.o cli/hitomezashi_cli.c
+
+
+hitomezashi_web.html: web/hitomezashi_web_shell.html hitomezashi_web.o libhitomezashi.a
+	$(CC) $(LDFLAGS) $(LDLIBS) -O3 --shell-file ./web/hitomezashi_web_shell.html -o hitomezashi_web.html hitomezashi_web.o libhitomezashi.a
+hitomezashi_web.o: web/hitomezashi_web.c web/hitomezashi_web.h
+	$(CC) -c $(CFLAGS) -I./lib/ web/hitomezashi_web.c
 
 format-code:
 	clang-format -i --verbose **/*.c **/*.h
 
 clean:
-	rm -f *.a *.o hitomezashi_cli
+	rm -f *.a *.o *.js *.wasm *.html hitomezashi_cli