SHELL = /bin/sh
CXX = g++
CXXFLAGS = -std=c++11 -g -ggdb3 -Wall -I../include -I/usr/include/SDL2
LDFLAGS = -lSDL2 -lGLEW -lGL -lassimp
OBJDIR = build
LIB = ../build/libTangerine.a
BINDIR = bin

ifeq ($(USE_INTERNAL_ASSIMP), y)
CXXFLAGS += -I../$(ASSIMP_DIR)/include -I../$(ASSIMP_DIR)/build/include
LDFLAGS = -lSDL2 -lGLEW -lGL
ASSIMP_LIB := ../$(ASSIMP_DIR)/build/code/libassimp.a
endif

EXAMPLE_SOURCES = \
	hello_world/main.cpp \
	assimp_loading/main.cpp \
	simple_mesh/main.cpp \
EXAMPLE_OBJECTS = $(patsubst %/, $(OBJDIR)/%.o, $(dir $(EXAMPLE_SOURCES)))

EXAMPLES = hello_world simple_mesh assimp_loading
BINARIES = $(patsubst %, $(BINDIR)/%, $(EXAMPLES))

all: mkdirs $(BINARIES)
.PHONY: all

$(OBJDIR)/hello_world.o:
	$(CXX) $(CXXFLAGS) -c -MMD hello_world/main.cpp -o $@

$(BINDIR)/hello_world: $(OBJDIR)/hello_world.o
	$(CXX) -o $@ $(LDFLAGS) $^ $(LIB) $(ASSIMP_LIB)

$(OBJDIR)/simple_mesh.o:
	$(CXX) $(CXXFLAGS) -c -MMD simple_mesh/main.cpp -o $@

$(BINDIR)/simple_mesh: $(OBJDIR)/simple_mesh.o
	$(CXX) -o $@ $(LDFLAGS) $^ $(LIB) $(ASSIMP_LIB)

$(OBJDIR)/assimp_loading.o:
	$(CXX) $(CXXFLAGS) -c -MMD assimp_loading/main.cpp -o $@

$(BINDIR)/assimp_loading: $(OBJDIR)/assimp_loading.o
	$(CXX) -o $@ $(LDFLAGS) $^ $(LIB) $(ASSIMP_LIB)

-include $(OBJDIR)/*.d

mkdirs:
	@mkdir -p $(BINDIR) $(OBJDIR)
.PHONY: mkdirs

clean:
	rm -rf $(OBJDIR)/* bin/*
.PHONY: clean