# This Makefile can be called by emscripten to generate a webpage
# Usage:
# $ emmake -f Makefile_emscripten
# $ emrun index.html

# This path should point to the CGP library depending on the current directory
## You may need to it in case you move the position of your directory
PATH_TO_CGP = ../../cgp/library/

TARGET ?= index.html 
SRC_DIRS ?= src/ $(PATH_TO_CGP)
CXX = emcc

SRCS := $(shell find $(SRC_DIRS) -name *.cpp -or -name *.c -or -name *.s)
OBJS := $(addsuffix .o,$(basename $(SRCS)))
DEPS := $(OBJS:.o=.d)

INC_DIRS  := . $(PATH_TO_CGP)
INC_FLAGS := $(addprefix -I,$(INC_DIRS))

CPPFLAGS += $(INC_FLAGS) -MMD -MP -DIMGUI_IMPL_OPENGL_LOADER_GLAD -O2 -std=c++14 -Wall -Wextra -Wfatal-errors -Wno-sign-compare -Wno-type-limits -Wno-pragmas -DSOLUTION -DCGP_NO_DEBUG 

LDLIBS += -ldl -lm -sMAX_WEBGL_VERSION=2 -s USE_GLFW=3 -s ALLOW_MEMORY_GROWTH=1 --preload-file shaders/ --preload-file assets/

$(TARGET): $(OBJS)
	echo $(CURDIR)
	$(CXX) $(LDFLAGS) $(OBJS) -o $@ $(LOADLIBES) $(LDLIBS)
	cp scripts/emscripten_template.html index.html

.PHONY: clean
clean:
	$(RM) $(TARGET) $(OBJS) $(DEPS)

-include $(DEPS)