.PHONY: all clean

# Define required raylib variables
PROJECT_NAME       ?= KleiaxSnake
RAYLIB_VERSION     ?= 4.2.0
RAYLIB_PATH        ?= ..\..

# Define compiler path on Windows
COMPILER_PATH      ?= C:/raylib/w64devkit/bin

PLATFORM           ?= PLATFORM_DESKTOP

DESTDIR ?= /usr/local
RAYLIB_INSTALL_PATH ?= $(DESTDIR)/lib
RAYLIB_H_INSTALL_PATH ?= $(DESTDIR)/include

# Library type used for raylib: STATIC (.a) or SHARED (.so/.dll)
RAYLIB_LIBTYPE        ?= STATIC

# Build mode for project: DEBUG or RELEASE
BUILD_MODE            ?= DEBUG

ifeq ($(OS),Windows_NT)
    PLATFORM_OS=WINDOWS
    export PATH := $(COMPILER_PATH):$(PATH)
endif

RAYLIB_RELEASE_PATH 	?= $(RAYLIB_PATH)/src
EXAMPLE_RUNTIME_PATH   ?= $(RAYLIB_RELEASE_PATH)

# Define default C compiler: gcc
# NOTE: define g++ compiler if using C++
CC = g++

# Define default make program: Mingw32-make
MAKE = mingw32-make

# Define compiler flags:
#  -O0                  defines optimization level (no optimization, better for debugging)
#  -O1                  defines optimization level
#  -g                   include debug information on compilation
#  -s                   strip unnecessary data from build -> do not use in debug builds
#  -Wall                turns on most, but not all, compiler warnings
#  -std=c99             defines C language mode (standard C from 1999 revision)
#  -std=gnu99           defines C language mode (GNU C from 1999 revision)
#  -Wno-missing-braces  ignore invalid warning (GCC bug 53119)
#  -D_DEFAULT_SOURCE    use with -std=c99 on Linux and PLATFORM_WEB, required for timespec
CFLAGS += -Wall -Wno-missing-braces

ifeq ($(BUILD_MODE),DEBUG)
    CFLAGS += -g -O0
else
    CFLAGS += -s -O1
endif


# Define include paths for required headers
# NOTE: Several external required libraries (stb and others)
INCLUDE_PATHS = -I. -I$(RAYLIB_PATH)/src -I$(RAYLIB_PATH)/src/external
INCLUDE_PATHS += -I./include
# INCLUDE_PATHS += -I./src

# Define library paths containing required libs.
LDFLAGS = -L. -L$(RAYLIB_RELEASE_PATH) -L$(RAYLIB_PATH)/src

# Define any libraries required on linking
# if you want to link libraries (libname.so or libname.a), use the -lname
ifeq ($(PLATFORM_OS),WINDOWS)
    # Libraries for Windows desktop compilation
    # NOTE: WinMM library required to set high-res timer resolution
    LDLIBS = -lraylib -lopengl32 -lgdi32 -lwinmm
endif

# Define a recursive wildcard function
rwildcard=$(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) $(filter $(subst *,%,$2),$d))

# Define all source files required
SRC_DIR = src
OBJ_DIR = obj

# Define all object files from source files
# SRC = $(call rwildcard, *.c, *.h)
SRC = $(call rwildcard, *.cpp, *.h)
# OBJS = $(SRC:$(SRC_DIR)/%.cpp=$(OBJ_DIR)/%.o)
OBJS ?= main.cpp
OBJS += src/Game.cpp
OBJS += src/Board.cpp
OBJS += src/raylibCpp.cpp
OBJS += src/Snake.cpp

MAKEFILE_PARAMS = $(PROJECT_NAME)


all:
	$(MAKE) $(MAKEFILE_PARAMS)

# Project target defined by PROJECT_NAME
$(PROJECT_NAME): $(OBJS)
	$(CC) -o $(PROJECT_NAME)$(EXT) $(OBJS) $(CFLAGS) $(INCLUDE_PATHS) $(LDFLAGS) $(LDLIBS) -D$(PLATFORM)

# Compile source files
# NOTE: This pattern will compile every module defined on $(OBJS)
#%.o: %.c
$(OBJ_DIR)/%.o: $(SRC_DIR)/%.cpp
	$(CC) -c $< -o $@ $(CFLAGS) $(INCLUDE_PATHS) -D$(PLATFORM)

# Clean everything
clean:
    ifeq ($(PLATFORM_OS),WINDOWS)
		del *.o *.exe /s
    endif
	@echo Cleaning done