VC5_DIR ?= $(HOME)/DevStudio_5.10/VC

# The $(VS6_DIR) directory is a copy of the "Microsoft Visual Studio" directory.
#
# To get a working setup on Linux or other "portable" copies of VS,
# the following DLLs have to be copied to the
# $(VS6_DIR)/VC98/Bin directory.
#
#     - $(VS6_DIR)/Common/MSDev98/Bin/MSPDB60.DLL
#
# And to the $(VC5_DIR)/bin directory.
#
#     - $(VC5_DIR)/SharedIDE/bin/MSDIS100.DLL
#     - $(VC5_DIR)/SharedIDE/bin/MSPDB50.DLL
VS6_DIR ?= $(HOME)/VS6

VC6_DIR     = $(VS6_DIR)/VC98

VC6_BIN_DIR = $(VC6_DIR)/Bin
VC6_INC_DIR = $(VC6_DIR)/Include
VC6_LIB_DIR = $(VC6_DIR)/Lib

VC5_LIB_DIR = $(VC5_DIR)/lib

IDE_DIR ?= $(VS6_DIR)/Common/MSDev98
IDE_BIN_DIR = $(IDE_DIR)/bin
ifeq ($(OS),Windows_NT)
	CL = $(VC6_BIN_DIR)/CL.EXE
	RC = $(IDE_BIN_DIR)/RC.EXE
	VC5_LINK = $(VC5_DIR)/bin/link.exe
	VC6_LINK = $(VC6_BIN_DIR)/link.exe
else
	CL = wine $(VC6_BIN_DIR)/CL.EXE
	RC = wine $(IDE_BIN_DIR)/RC.EXE
	VC5_LINK = wine $(VC5_DIR)/bin/link.exe
	VC6_LINK = wine $(VC6_BIN_DIR)/link.exe
endif

CFLAGS=/nologo /c /GX /W3 /O1 /I $(VC6_INC_DIR) /FD /MT /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /Fp"Diablo.pch" /YX /Gm /Zi
LINKFLAGS=/nologo /subsystem:windows /machine:I386 /incremental:no

ifeq ($(MAKE_BUILD),pdb)
	VC_LINK = $(VC6_LINK)
	LINKFLAGS += /pdb:"Diablo.pdb" /LIBPATH:$(VC6_LIB_DIR) /debug
else
	VC_LINK=$(VC5_LINK)
	LINKFLAGS+= /LIBPATH:$(VC5_LIB_DIR)
endif

all: Diablo.exe

debug: CFLAGS += /D "_DEBUG"
debug: Diablo.exe

# fix compilation order to match the VC6 workspace files and exclude local assembly functions
DIABLO_SRC=$(sort $(filter-out Source/_asm.cpp Source/_render.cpp Source/render.cpp, $(wildcard Source/*.cpp)))
DIABLO_SRC += Source/render.cpp
OBJS=$(DIABLO_SRC:.cpp=.obj)
# hardcoded list of src files, because only some of them are ready to be compiled as C instead of C++
# once all files compile as C we should use the /TC flag abd DIABLO_SRC instead
DIABLO_SRC_FIXED = Source/appfat.cpp Source/automap.cpp Source/capture.cpp /TcSource/codec.cpp Source/control.cpp Source/cursor.cpp /TcSource/dead.cpp Source/debug.cpp Source/diablo.cpp Source/doom.cpp Source/drlg_l1.cpp Source/drlg_l2.cpp Source/drlg_l3.cpp Source/drlg_l4.cpp Source/dthread.cpp Source/dx.cpp Source/effects.cpp Source/encrypt.cpp Source/engine.cpp Source/error.cpp Source/fault.cpp /TcSource/gamemenu.cpp Source/gendung.cpp Source/gmenu.cpp /TcSource/help.cpp Source/init.cpp Source/interfac.cpp Source/inv.cpp Source/items.cpp Source/lighting.cpp Source/loadsave.cpp Source/logging.cpp Source/mainmenu.cpp Source/minitext.cpp Source/missiles.cpp Source/monster.cpp Source/movie.cpp Source/mpqapi.cpp Source/msg.cpp Source/msgcmd.cpp Source/multi.cpp Source/nthread.cpp Source/objects.cpp Source/pack.cpp Source/palette.cpp /TcSource/path.cpp Source/pfile.cpp Source/player.cpp /TcSource/plrmsg.cpp /TcSource/portal.cpp Source/quests.cpp /TcSource/restrict.cpp Source/scrollrt.cpp Source/setmaps.cpp /TcSource/sha.cpp Source/sound.cpp Source/spells.cpp Source/stores.cpp Source/sync.cpp /TcSource/textdat.cpp Source/themes.cpp Source/tmsg.cpp Source/town.cpp Source/towners.cpp /TcSource/track.cpp /TcSource/trigs.cpp Source/wave.cpp Source/render.cpp

PKWARE_SRC=$(sort $(wildcard 3rdParty/PKWare/*.cpp))
PKWARE_OBJS=$(PKWARE_SRC:.cpp=.obj)

STORM_SRC=$(sort $(wildcard 3rdParty/Storm/Source/*.cpp))
STORM_OBJS=$(STORM_SRC:.cpp=.obj)

DIABLOUI_SRC=DiabloUI/diabloui.cpp
DIABLOUI_OBJS=$(DIABLOUI_SRC:.cpp=.obj)

Diablo.exe: main_files $(PKWARE_OBJS) diablo.res DiabloUI/diabloui.lib 3rdParty/Storm/Source/storm.lib
	$(VC_LINK) /OUT:$@ $(LINKFLAGS) $(OBJS) $(PKWARE_OBJS) diablo.res DiabloUI/diabloui.lib 3rdParty/Storm/Source/storm.lib user32.lib gdi32.lib advapi32.lib shell32.lib version.lib

DiabloUI/diabloui.lib: $(DIABLOUI_OBJS) 3rdParty/Storm/Source/storm.lib
	$(CL) $^ /link /LINK50COMPAT /nologo /dll /subsystem:windows /machine:I386 /LIBPATH:$(VC6_LIB_DIR) DiabloUI/diabloui.res advapi32.lib gdi32.lib shell32.lib user32.lib version.lib 3rdParty/Storm/Source/storm.lib /def:"DiabloUI/diabloui.def" /out:DiabloUI/diabloui.dll

3rdParty/Storm/Source/storm.lib: $(STORM_OBJS)
	$(CL) $^ /link /LINK50COMPAT /nologo /dll /subsystem:windows /machine:I386 /LIBPATH:$(VC6_LIB_DIR) /def:"3rdParty/Storm/Source/storm.def" /out:3rdParty/Storm/Source/storm.dll

# compiles all main source files with once compiler call
main_files:
	$(CL) $(CFLAGS) /FoSource/ $(DIABLO_SRC_FIXED)

%.obj: %.cpp
	$(CL) $(CFLAGS) /Fo$@ $<

diablo.res: Diablo.rc
	$(RC) /i $(VC6_INC_DIR) /i $(VC6_DIR)/MFC/Include /l 0x409 /fo $@ $<

clean:
	@$(RM) -v $(OBJS) $(PKWARE_OBJS) $(STORM_OBJS) $(DIABLOUI_OBJS) DiabloUI/diabloui.{exp,lib,dll} 3rdParty/Storm/Source/storm.{exp,lib,dll}

.PHONY: clean all