 Functions/Subroutines  Write it once, use it as many times as you want.

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Presentation transcript:

 Functions/Subroutines  Write it once, use it as many times as you want.

 When you produced your routines for a ‘robot’ to go around the corridor, some of the actions needed to be repeated such as:  Turn right  Forward N number of steps  It might have been useful to create routines within the overall routine to do these.

 We can and these are subroutines.  We can use flowcharts to represent them.  We can use a predefine process block to represent where a ‘call’ to a subroutine is.  We can then do a flowchart for the subroutine

 Produce a flowchart for a menu system it should:  Present the user with a menu  takes in a user inputted numerical value for options in a menu;  Options are ▪ To calculate the area of the floor of a rectangular room ▪ To calculate the area of circle  Each option should lead to a subroutine to perform that action.

 Produce a test plan for problem 7.1

 Adapt your line follower ideas so that the robot can cope with an object on the track.  What are the limitations of your solution?  What are the advantages?  Group2.java on the website has some code that may be useful.

 Task  Draw a flowchart of your design.  Test your design on paper/screen/moving the robot by hand.  Program the robot based on your design.  It is expected that we will carry on with this next week. It is also expected that you might have to do this more than once.