Some refactoring
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1 changed files with 20 additions and 7 deletions
27
water_sim.py
27
water_sim.py
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@ -3,6 +3,11 @@
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from game import *
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class WaterSim(Game):
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alpha = 100000
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u = lambda Cm1,C,C1,dx: WaterSim.alpha * (Cm1+C1-2*C) * 0.5 * dx
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v = lambda u,v,d,dt: ( v + (u - d * v) * dt )
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w = lambda w,v,dt: w + v * dt
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def __init__(self,N):
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self.N = N
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self.init_data(N//2)
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@ -26,19 +31,27 @@ class WaterSim(Game):
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def on_update(self, dtime):
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C2 = [0] * self.N
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C2[0] = 100 * (self.C[1] - self.C[0]) * 100/self.N
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C2[-1] = 100 * (self.C[-2] - self.C[-1]) * 100/self.N
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C2[0] = WaterSim.u(self.C[1] , self.C[0] , self.C[1] , 1.0/self.N)
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C2[-1] = WaterSim.u(self.C[-2] , self.C[-1] , self.C[-2] , 1.0/self.N)
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#C2[0] = 100 * (self.C[1] - self.C[0]) * 100/self.N
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#C2[-1] = 100 * (self.C[-2] - self.C[-1]) * 100/self.N
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for i in range(1,self.N-1):
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C2[i] = 1000 * (self.C[i+1] + self.C[i-1] - 2*self.C[i]) * 0.5 * 100 /(self.N)
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C2[i] = WaterSim.u(self.C[i-1],self.C[i], self.C[i+1], 1.0/self.N)
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#C2[i] = 1000 * (self.C[i+1] + self.C[i-1] - 2*self.C[i]) * 0.5 * 100 /(self.N)
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for i in range(0,self.N):
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self.C1[i] = (self.C1[i] + C2[i] * dtime)
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if i == 0 or i == self.N-1:
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self.C1[i] *= 0.98
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d = 10
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#d = 0.95
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else:
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self.C1[i] *= 0.9999
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self.C[i] = ( self.C[i] + self.C1[i] * dtime )
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d = 0.1
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#d = 0.9999
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#self.C1[i] = d * (self.C1[i] + C2[i] * dtime)
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self.C1[i] = WaterSim.v(C2[i], self.C1[i], d, dtime)
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#self.C[i] = ( self.C[i] + self.C1[i] * dtime )
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self.C[i] = WaterSim.w(self.C[i], self.C1[i], dtime)
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if self.C[i] < 0:
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self.C[i] = 0
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