ui improvements and texture tests

Makefile

@@ -8,6 +8,7 @@ LDLIBS := -lraylib -lasound -llibremidi -pthread
 LDFLAGS := -Llib -L/usr/lib -L/usr/local/lib
 
 SRCS := $(wildcard src/*.cpp)
+HDRS := $(wildcard src/*.h)
 OBJECTS := $(patsubst src/%.cpp,build/%.o, $(SRCS))
 
 viseq: $(OBJECTS)
@@ -17,6 +18,9 @@ $(OBJECTS): build/%.o : src/%.cpp
 	@mkdir -p build
 	$(CXX) -c $< -o $@ $(CXXFLAGS) $(CXXINC)
 
+src/%.cpp: $HDRS
+	touch $@
+
 clean:
 	rm -f build/*
 	rm -f viseq