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Random staff lengths + mouse interaction

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madmaurice 2016-02-16 19:36:35 +01:00
parent 60a3048c7a
commit 359e7accb2
1 changed files with 14 additions and 3 deletions
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17
pendel.py
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@ -43,9 +43,11 @@ class PendelSim(Game):
def __init__(self): def __init__(self):
super(PendelSim,self).__init__(1000,600, 60) super(PendelSim,self).__init__(1000,600, 60)
self.init_data() self.init_data()
self.mousedown = False
self.mousepos = (0,0)
def init_data(self): def init_data(self):
self.staff_lengths = staff_lengths = [ randint(100,200) for i in range(3) ] self.staff_lengths = staff_lengths = [ randint(150,200), randint(100,200), randint(100,150) ]
fixed_joint = Vector( self._width/2, self._height/5 ) fixed_joint = Vector( self._width/2, self._height/5 )
joint_a = fixed_joint - Vector(staff_lengths[0],0) joint_a = fixed_joint - Vector(staff_lengths[0],0)
joint_b = joint_a - Vector(0,-staff_lengths[1]) joint_b = joint_a - Vector(0,-staff_lengths[1])
@ -56,7 +58,10 @@ class PendelSim(Game):
def on_update(self, dtime): def on_update(self, dtime):
new_joints = self.joints[:] new_joints = self.joints[:]
for i in range(1,4): for i in range(1,4):
new_joints[i] += (self.joint_speed[i] + Vector(0,40)) * dtime new_joints[i] += (0.99 * self.joint_speed[i] + Vector(0,40)) * dtime
if self.mousedown:
new_joints[1] = Vector(self.mousepos[0], self.mousepos[1])
for i in range(0,4-1): for i in range(0,4-1):
relvec = new_joints[i+1] - new_joints[i] relvec = new_joints[i+1] - new_joints[i]
@ -90,7 +95,13 @@ class PendelSim(Game):
def on_event(self, event): def on_event(self, event):
if event.type == MOUSEBUTTONDOWN: if event.type == MOUSEBUTTONDOWN:
self.init_data() self.mousedown = True
self.mousepos = event.pos[:]
elif event.type == MOUSEBUTTONUP:
self.mousedown = False
self.mousepos = event.pos[:]
elif event.type == MOUSEMOTION:
self.mousepos = event.pos[:]
else: else:
super(PendelSim, self).on_event(event) super(PendelSim, self).on_event(event)