Makefile

# Kube  :  An OpenGL based game engine.
# Copyright (C) 2021 Kendal Harland GPL-3.0-only
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

# To install dependencies:
# * libglfw: https://www.glfw.org/
# * libGLEW: https://glew.sourceforge.net/
# * libGL: https://dri.freedesktop.org/wiki/libGL/

ifndef config
	config = release
endif

ifeq ($(config),debug)
	CXXFLAGS += -g -O0
endif

SOURCE_ROOT := $(realpath ./)

LIBRARY_PATH=$(SOURCE_ROOT)/src/lib/
LIBS := -lglfw -lGLEW -lGL -lm -lassimp
INC := -I./src/include
INC += -I./third_party/assimp/include
CXX := clang++
CXXFLAGS += -std=c++20 -Wall $(LIBS) $(INC)

TARGET := $(LIBRARY_PATH)libkube.o

.PHONY: default pull-submodules clean help format

default: demo

format:
	@echo "=== Formatting code ==="
	find src -regex '.*\.\(c\|h\|cpp\|hpp\)' -exec clang-format -style=file -i {} \;

assimp:
	@echo "=== Building third_party/assimp ==="
	cd third_party/assimp; cmake CMakeLists.txt; make -j4
	cp -av third_party/assimp/bin/libassimp.so* $(LIBRARY_PATH)

build3p: assimp
	@echo "=="

clean:
	@echo "=== Removing temporary files ==="
	rm -f $(TARGET)
	rm -f ./bin/*

build: build3p format
	@echo "=== Building $(TARGET) ($(config)) ==="
	$(CXX) -c -o $(TARGET) src/kube.cpp $(CXXFLAGS) -fPIC
	$(CXX) -shared -o $(LIBRARY_PATH)libkube.so $(TARGET)

clean-build: clean build
	@echo "=== Performing a clean build ==="

pull-submodules:
	@echo "=== Fetching submodules ==="
	git submodule update --init --recursive

demo: build
	@echo "=== Running $(TARGET) ($(config)) ==="
	$(CXX) demos/car/main.cpp -o bin/car $(CXXFLAGS) -lkube -Idemos/common/
	$(CXX) demos/cube/main.cpp -o bin/cube $(CXXFLAGS) -lkube -Idemos/common/
	$(CXX) demos/creatures/main.cpp -o bin/creatures $(CXXFLAGS) -lkube -Idemos/common/

demo-cube: demo
	./bin/cube

demo-creatures: demo
	./bin/creatures

demo-car: demo
	./bin/car

help:
	@echo "Usage: make [target]"
	@echo ""
	@echo "Targets:"
	@echo "  demo (default)  Builds all demos and places them in bin/"
	@echo "  clean           Deletes temporary files from the project directory"
	@echo "  format"
	@echo "  run"
	@echo ""
	@echo "For more information, see https://github.com/premake/premake-core/wiki"