def update(self, time):
if self._destroyed:
return False
if self._t0 is None:
self._t0 = time
if self._follow is not None and not self._follow.closing() :
d = self._follow._pos - self._pos
T.unit_vector(d,d)
self._dir = self._dir * (1-self._thrust) + d * self._thrust
if time - self._t0 > 3000 or self._follow._destroyed:
print "Not following anymore"
self._follow = None
Entity.moveTo(self, self._pos + self._dir * self._speed) # also updates _pos
else:
# too simple to use Verlet
Entity.moveTo(self, self._pos + self._dir * self._speed) # also updates _pos
self._dir += self._gravity
self._xform = mmult(self._pos_m,self._scaling_m, T.quaternion_matrix(self._rotation))
self._rotation = T.quaternion_multiply(self._d_rotation, self._rotation)
# hit the floor
if self._map(self._pos[0], self._pos[1], False) > self._pos[2]:
self.explode()
return False # tell the scene the missile is toast
return True
def update(self, time):
if self._destroyed:
return False
if self._closing:
self._scale -= 0.01
self._scale = max(self._scale, 0)
self._scale_m = T.scale_matrix(self._scale)
if self._scale == 0:
self._destroyed = True
self._rot = T.quaternion_multiply(self._rot_speed, self._rot)
self._anim_m = T.quaternion_matrix(self._rot)
self._beacon_xform = self._pos_m
self._geom_xform = mmult(self._pos_m, self._anim_m, self._scale_m)
return True
def roll(self, axis):
len = T.vector_norm(axis) * 5.0
rot = T.quaternion_about_axis(-len, axis)
self._rotation = T.quaternion_multiply(rot, self._rotation)