PREFIX ?= /usr/local/bin

ifeq ($(OS),Windows_NT)
UNAME_S := Windows
CXX = cl
CXXFLAGS = -MD -EHsc
OBJEXT = obj
LDFLAGS = 
OUTPUTFLAG = -Fo
else
UNAME_S := $(shell uname -s)
CXX ?= g++
CXXFLAGS = -std=c++14 -Wall -Wextra -pedantic -O2
OBJEXT = o
LDFLAGS ?= -lSDL2 -lSDL2_image -lSDL2_gfx -lSDL2_ttf -pthread
OUTPUTFLAG = -o 
endif

TETRIS_OBJECTS = tetris.${OBJEXT} scenes.${OBJEXT} config.${OBJEXT} functions.${OBJEXT} global_vars.${OBJEXT} custom_classes.${OBJEXT}

ifeq ($(UNAME_S),Linux)
TETRIS_OBJECTS += libsdlpp.so
endif
ifeq ($(UNAME_S),Darwin)
TETRIS_OBJECTS += libsdlpp.dylib
endif
ifeq ($(UNAME_S),Windows)
TETRIS_OBJECTS += ../sdlpp/SDL2/SDL2_framerate.c ../sdlpp/SDL2/SDL2_gfxPrimitives.c ../sdlpp/SDL2/SDL2_imageFilter.c ../sdlpp/SDL2/SDL2_rotozoom.c
SDLLIB = libsdlpp.dll
endif

.PHONY: default
default: tetris

ifeq ($(UNAME_S),Windows)
tetris: ${TETRIS_OBJECTS} ${SDLLIB}
	$(CXX) $(CXXFLAGS) -Fe"$@" ${TETRIS_OBJECTS} /link ..\sdlpp\SDL2.lib ..\sdlpp\SDL2_ttf.lib ..\sdlpp\SDL2_image.lib libsdlpp.lib

else
tetris: ${TETRIS_OBJECTS}
	$(CXX) $(CXXFLAGS) -o $@ $^ ${LDFLAGS} -L $(shell pwd) -lsdlpp
endif

tetris.${OBJEXT}: tetris.cpp ../sdlpp/sdlpp.hpp config.hpp custom_classes.hpp scenes.hpp global_vars.hpp functions.hpp
	$(CXX) $(CXXFLAGS) -c ${OUTPUTFLAG}$@ $<
scenes.${OBJEXT}: scenes.cpp ../sdlpp/sdlpp.hpp config.hpp scenes.hpp functions.hpp global_vars.hpp
	$(CXX) $(CXXFLAGS) -c ${OUTPUTFLAG}$@ $<
config.${OBJEXT}: config.cpp config.hpp
	$(CXX) $(CXXFLAGS) -c ${OUTPUTFLAG}$@ $<
functions.${OBJEXT}: functions.cpp config.hpp functions.hpp global_vars.hpp scenes.hpp
	$(CXX) $(CXXFLAGS) -c ${OUTPUTFLAG}$@ $<
global_vars.${OBJEXT}: global_vars.cpp config.hpp global_vars.hpp functions.hpp
	$(CXX) $(CXXFLAGS) -c ${OUTPUTFLAG}$@ $<
custom_classes.${OBJEXT}: custom_classes.cpp custom_classes.hpp
	$(CXX) $(CXXFLAGS) -c ${OUTPUTFLAG}$@ $<
libsdlpp.so: ../sdlpp
	$(MAKE) clean -C ../sdlpp
	$(MAKE) -C ../sdlpp
	cp ../sdlpp/libsdlpp.so .
	ln -sf libsdlpp.so libsdlpp.so.1
libsdlpp.dylib: ../sdlpp
	$(MAKE) clean -C ../sdlpp
	$(MAKE) -C ../sdlpp
	cp ../sdlpp/libsdlpp.dylib .
libsdlpp.dll: ../sdlpp
	$(MAKE) clean -C ../sdlpp
	$(MAKE) -C ../sdlpp
	cp ../sdlpp/libsdlpp.dll .
	cp ../sdlpp/libsdlpp.lib .

start:
	LD_LIBRARY_PATH=$$(pwd) ./tetris

clean:
	rm -Rf *.${OBJEXT} tetris