衝突なし
Vx = 0.1, Vy = 2.4, ccw
DC3 : x = -0.50567, y = 38.356
this: x = -0.505668, y = 38.3561

Vx = -0.05, Vy = 2.35, cw
DC3 : x = 1.210408091545105,"y":36.581085205078125
this: x = 1.21041, y = 36.5811


衝突あり
Vx = 0.1, Vy = 2.4, ccw, stone1(x=-0.505668, y=38.3561)
DC3 : stone1(x=-0.452675, y=38.0711)
      stone2(x=-0.574487, y = 38.6396)
this: stone1(x=-0.452675, y=38.0711)
      stone2(x=-0.58365, y=38.6373)