Set value of global variable:
runtimeScene.getGame().getVariables().get(“globalVarName”).setNumber(100);
runtimeScene.getGame().getVariables().get(“globalVarName”).setString(“new text”);
Get value of global variable:
var globalVarNumber = runtimeScene.getGame().getVariables().get(“globalVarName”).getAsNumber();
var globalVarString = runtimeScene.getGame().getVariables().get(“globalVarName”).getAsString();