# This Makefile works for Mac OS X (El Capitan), MinGW, and Linux.
#
# For Mac OS X:
#   Run "brew install sdl" to install SDL in /usr/local.
#   Run "brew install sdl_gfx".
#   Run "brew install sdl_mixer".
#   Run "brew install sdl_ttf".
#   Run "make" to build HyperRogue as ./hyperrogue.
#
# For MSYS2 and MinGW-w64:
#   You might need to run commands such as "pacman -S mingw-w64-x86_64-SDL"
#   to install SDL and other required libraries.
#   Run "make" to build HyperRogue as ./hyperrogue.exe.
#
# For Ubuntu Linux:
#   Run "sudo apt-get install libsdl-dev" to install SDL in /usr/local.
#   Run "make" to build HyperRogue as ./hyperrogue.


ifeq ($(OS),Windows_NT)
  OS := mingw
  TOOLCHAIN := mingw
else
  UNAME_S := $(shell uname -s)
  ifeq ($(UNAME_S),Linux)
    OS := linux
  else
    ifeq ($(UNAME_S),Darwin)
      OS := osx
    endif
  endif
  TOOLCHAIN_VERSION_S := $(shell $(CXX) --version)
  ifneq (,$(findstring clang,$(TOOLCHAIN_VERSION_S)))
    TOOLCHAIN := clang
  else
    TOOLCHAIN := gcc
  endif
endif


## We have now finished inspecting the environment via $(shell).
## Begin customization points for each OS and TOOLCHAIN we support.


ifeq (${OS},linux)
  CXXFLAGS_EARLY += -DLINUX
  EXE_EXTENSION :=
  LDFLAGS_GL := -lGL
  LDFLAGS_GLEW := -lGLEW
  LDFLAGS_PNG := -lpng
  LDFLAGS_SDL := -lSDL -lSDL_gfx -lSDL_mixer -lSDL_ttf -lpthread -lz
  OBJ_EXTENSION := .o
  hyper_RES :=
endif

ifeq (${OS},mingw)
  CXXFLAGS_EARLY += -DWINDOWS -mwindows -D_A_VOLID=8
  EXE_EXTENSION := .exe
  LDFLAGS_GL := -lopengl32
  LDFLAGS_GLEW := -lglew32
  LDFLAGS_PNG := -lpng
  LDFLAGS_SDL := -lSDL -lSDL_gfx -lSDL_mixer -lSDL_ttf -lpthread -lz
  OBJ_EXTENSION := .o
  hyper_RES := hyper.res
  ifeq (${HYPERROGUE_USE_GLEW},)
    HYPERROGUE_USE_GLEW := 1
  endif
endif

ifeq (${OS},osx)
  CXXFLAGS_EARLY += -DMAC -I/usr/local/include
  EXE_EXTENSION :=
  LDFLAGS_EARLY += -L/usr/local/lib
  LDFLAGS_GL := -framework AppKit -framework OpenGL
  LDFLAGS_GLEW := -lGLEW
  LDFLAGS_PNG := -lpng
  LDFLAGS_SDL := -lSDL -lSDLMain -lSDL_gfx -lSDL_mixer -lSDL_ttf -lpthread -lz
  OBJ_EXTENSION := .o
  hyper_RES :=
endif

ifeq (${TOOLCHAIN},clang)
  CXXFLAGS_STD = -std=c++11
  CXXFLAGS_EARLY += -march=native -fPIC
  CXXFLAGS_EARLY += -W -Wall -Wextra -Werror -pedantic
  CXXFLAGS_EARLY += -Wno-unused-parameter -Wno-implicit-fallthrough -Wno-maybe-uninitialized -Wno-unknown-warning-option
  CXXFLAGS_EARLY += -Wno-invalid-offsetof
endif

ifeq (${TOOLCHAIN},gcc)
  CXXFLAGS_STD = -std=c++11
  CXXFLAGS_EARLY += -march=native -fPIC
  CXXFLAGS_EARLY += -W -Wall -Wextra -Werror -pedantic
  CXXFLAGS_EARLY += -Wno-unused-parameter -Wno-implicit-fallthrough -Wno-maybe-uninitialized
endif

ifeq (${TOOLCHAIN},mingw)
  CXXFLAGS_STD = -std=c++11
  CXXFLAGS_EARLY += -march=native
  CXXFLAGS_EARLY += -W -Wall -Wextra -Werror
  CXXFLAGS_EARLY += -Wno-unused-parameter -Wno-implicit-fallthrough -Wno-maybe-uninitialized
endif


## We have now finished OS-specific and TOOLCHAIN-specific computations.
## Begin customization points for user-specifiable HYPERROGUE_USE_XXX macros.


hyper_OBJS = hyper$(OBJ_EXTENSION)
hyper_LDFLAGS = $(LDFLAGS_GL) $(LDFLAGS_SDL)

ifeq (${HYPERROGUE_USE_GLEW},1)
  CXXFLAGS_EARLY += -DCAP_GLEW=1
  hyper_LDFLAGS += $(LDFLAGS_GLEW)
else
  CXXFLAGS_EARLY += -DCAP_GLEW=0
endif

ifeq (${HYPERROGUE_USE_PNG},1)
  CXXFLAGS_EARLY += -DCAP_PNG=1
  hyper_LDFLAGS += $(LDFLAGS_PNG)
  hyper_OBJS += savepng$(OBJ_EXTENSION)
else
  CXXFLAGS_EARLY += -DCAP_PNG=0
endif

ifeq (${HYPERROGUE_USE_ROGUEVIZ},1)
  # Enable RogueViz. RogueViz requires C++17.
  CXXFLAGS_STD = -std=c++17
  CXXFLAGS_EARLY += -DCAP_ROGUEVIZ=1
endif


## We have now finished HYPERROGUE_USE_XXX-specific computations.
## Begin the Makefile proper.


override CXXFLAGS := $(CXXFLAGS_STD) $(CXXFLAGS_EARLY) $(CXXFLAGS) ${EXTRA_CXXFLAGS}
override LDFLAGS := $(LDFLAGS_EARLY) $(LDFLAGS) ${EXTRA_LDFLAGS}

hyperrogue$(EXE_EXTENSION): $(hyper_OBJS) $(hyper_RES)
	$(CXX) $(CXXFLAGS) $(hyper_OBJS) $(hyper_RES) $(LDFLAGS) $(hyper_LDFLAGS) -o $@

hyper$(OBJ_EXTENSION): *.cpp language-data.cpp autohdr.h
	$(CXX) -O2 $(CXXFLAGS) $(hyper_CXXFLAGS) -c hyper.cpp -o $@

hyper.res: hyper.rc hr-icon.ico
	windres hyper.rc -O coff -o hyper.res

langen$(EXE_EXTENSION): langen.cpp language-??.cpp language-ptbr.cpp
	$(CXX) -O0 $(CXXFLAGS) $(langen_CXXFLAGS) langen.cpp $(LDFLAGS) -o $@

makeh$(EXE_EXTENSION): makeh.cpp
	$(CXX) -O2 makeh.cpp -o $@

autohdr.h: makeh$(EXE_EXTENSION) language-data.cpp *.cpp
	./makeh classes.cpp locations.cpp colors.cpp hyperpoint.cpp geometry.cpp goldberg.cpp init.cpp floorshapes.cpp cell.cpp multi.cpp shmup.cpp pattern2.cpp mapeditor.cpp graph.cpp textures.cpp hprint.cpp language.cpp util.cpp complex.cpp *.cpp > autohdr.h

language-data.cpp: langen$(EXE_EXTENSION)
	./langen > language-data.cpp

savepng$(OBJ_EXTENSION): savepng.cpp
	$(CXX) -O2 $(CXXFLAGS) -c savepng.cpp -o $@

mymake$(EXE_EXTENSION): mymake.cpp
	$(CXX) -O2 $(CXXFLAGS) mymake.cpp -pthread -o $@

emscripten: hyper.html

%.html %.js %.wasm: %.emscripten-sources
	emcc -std=c++11 -O3 -s USE_ZLIB=1 -s LEGACY_GL_EMULATION=1 -s TOTAL_MEMORY=128MB hyperweb.cpp -o hyper.html

hyper.emscripten-sources: *.cpp autohdr.h

.PHONY: clean

clean:
	rm -f langen$(EXE_EXTENSION) language-data.cpp
	rm -f makeh$(EXE_EXTENSION) autohdr.h
	rm -rf mymake$(EXE_EXTENSION) mymake_files/
	rm -f hyperrogue$(EXE_EXTENSION) hyper$(OBJ_EXTENSION) $(hyper_RES) savepng$(OBJ_EXTENSION)
	rm -f hyper.html hyper.js hyper.wasm