chore: add gitignore and build configuration

.gitignore

@@ -0,0 +1,4 @@
+build/
+web/index.html
+web/index.js
+web/index.wasm

Makefile

@@ -0,0 +1,39 @@
+CORE_SRC := $(wildcard core/src/*.cpp)
+TEST_SRC := $(wildcard tests/*.cpp)
+RENDER_SRC := $(wildcard render/*.cpp)
+
+CORE_INCLUDE := -Icore/include
+CXXFLAGS := -std=c++17 -O2 -Wall -Wextra $(CORE_INCLUDE)
+
+BUILD := build
+TEST_BIN := $(BUILD)/voxelforgeTests
+WEB_OUT := web/index.html
+
+.PHONY: all test web clean run-web
+
+all: test
+
+test: $(TEST_BIN)
+	./$(TEST_BIN)
+
+$(TEST_BIN): $(CORE_SRC) $(TEST_SRC) | $(BUILD)
+	$(CXX) $(CXXFLAGS) -Itests $(CORE_SRC) $(TEST_SRC) -o $@
+
+$(BUILD):
+	mkdir -p $(BUILD)
+
+web: $(WEB_OUT)
+
+$(WEB_OUT): $(CORE_SRC) $(RENDER_SRC)
+	@mkdir -p web
+	em++ -std=c++17 -O2 $(CORE_INCLUDE) -Irender $(CORE_SRC) $(RENDER_SRC) \
+		-s USE_WEBGL2=1 -s FULL_ES3=1 -s MIN_WEBGL_VERSION=2 -s MAX_WEBGL_VERSION=2 \
+		-s ALLOW_MEMORY_GROWTH=1 -s EXPORTED_RUNTIME_METHODS=['UTF8ToString','stringToUTF8','lengthBytesUTF8'] \
+		--shell-file render/shell.html \
+		-o $(WEB_OUT)
+
+run-web: web
+	emrun --no_browser --port 8080 web/index.html
+
+clean:
+	rm -rf $(BUILD) web/index.html web/index.js web/index.wasm