Animation blending

- transition smoothly between idle and run animations
- use quaternions (versors) instead of yaw/pitch/roll
- hide mouse and enable free-look mode by default on startup
- rotate model 180 degrees in Blender so it faces away from the camera by default
- add some makefile commands

makefile

@@ -14,7 +14,7 @@ OBJDIRS := $(patsubst $(SRC)%, $(OBJ)%, $(shell find $(SRC) -type d))
 CLEANDIRS := $(addsuffix /.clean, $(OBJDIRS));
 
 # Explicit targets
-.PHONY: all release clean
+.PHONY: all release clean rebuild run
 .DEFAULT_GOAL := all
 
 # Build executable
@@ -39,3 +39,11 @@ clean: $(CLEANDIRS)
 	rm -f $(EXE) $(REL)
 %.clean:
 	rm -f $**.o
+
+rebuild:
+	make clean
+	make all
+
+run:
+	make all
+	./$(EXE)