Castle
Draw a tower of a castle.
A tower of a castle has a battlement. The battlement has a number of merlons, the solid upright low wall sections. The space between the merlons is called a crenel. A series of merlons and crenels is called a crenellation. Merlons were used in medieval fortifications to protect the defenders from enemy fire and to allow them to launch projectiles from behind the cover.
Make
Write a program to draw a single tower with a variable number of merlons.
Use this boilerplate code as a starting point:
Success Criteria
Remember to add a comment before a subprogram, condition or iteration to explain its purpose.
Complete the subprogram called `draw_tower` that:
- Draws a tower using the parameter `merlons` to determine the number of merlons that should be drawn.
- The number of crenels is always one less than the number of merlons.
- The width of a crenel is 20 pixels.
Complete the subprogram called `draw_merlon` that:
- Draws one merlon and can be used repeatedly by the draw_tower subprogram.
- The height and width of a merlon is 20 pixels.
Typical inputs and outputs from the program would be:
draw_tower(4)
Knowledge Organiser
Use these resources as a reference to help you meet the success criteria.
Programming guide:
Flowcharts:
Parsons:
Evaluate
Check that your program outputs the expected result and has met the success criteria.
draw_tower(3)
draw_tower(5)
Check that you have:
- Used comments within the code to describe the purpose of subprograms, conditions and iterations.
- Used meaningful identifier names. That means the names of subprograms and variables indicate what they are for.
