def jsonToSystem(jsonObjs):
sysObj = str(jsonObjs[0])
sysLoadStr = sysObj.replace("u'", '"').replace("'",
'"').replace("L,", ",")
systemDict = json.loads(sysLoadStr)
system = GravitySystem()
system.G = systemDict["gravityConstant"]
system.scale = systemDict["scale"]
system.timeScale = systemDict["timeScale"]
system.bodyScale = systemDict["bodyScale"]
system.centralBodyScale = systemDict["centralBodyScale"]
system.elasticity = systemDict["elasticity"]
system.systemRadius = systemDict["boundary"]
system.handMass = systemDict["handMass"]
centralBody = None
for i in range(len(jsonObjs) - 1):
bodyObj = str(jsonObjs[i + 1])
bodyLoadStr = bodyObj.replace("u'",
'"').replace("'",
'"').replace("L,", ",")
dict = json.loads(bodyLoadStr)
body = Body(dict["name"], dict["mass"], dict["radius"])
if (body.name == systemDict["centralBodyName"]):
centralBody = body
system.centralBody = body
centralBody.setScale(system.scale)
centralBody.setBodyScale(system.bodyScale *
system.centralBodyScale)
print "Central body found:", centralBody.name
if (centralBody != None):
body.centralBody = centralBody
else:
print body.name, "has no central body"
body.setLocation(
Vector(dict["locationX"], dict["locationY"],
dict["locationZ"]), False)
if (body.name != systemDict["centralBodyName"]):
body.orbitDirection = Vector(dict["directionX"],
dict["directionY"],
dict["directionZ"])
body.setSpeed(dict["orbitSpeed"])
body.setOrbitRadius(dict["orbitRadius"])
system.addBody(body)
return system
