20 Movement With Keyboard
How can we integrate keyboard interactivity into our programs?
Vocabulary
|| OR, && AND, keyIsPressed, keyPressed, ==, ===, keyCode, MVP
Study Questions
- What might be a reason to provide multiple input methods for the user? (example mouse/ keyboard/ gamepad)
- What is the difference between keyIsPressed and keyPressed() function?
- Should we worry about making every variable global?
- What is a local variable and when might you want to use a local variable?
Activity
- Watch Video #1 (below)
- Create one canvas RPG GAME. You are creating a scenic canvas of interactive elements. Think of old style 2-d game world. Your canvas will have your imagination.
2D Game Example - Pokemon on Nintendo DS
- Use graphing paper to plan your elements (attached under lesson 03).
- Minimum Viable Product (MVP) will have the following in addition to the basic rubric:
- At least 5 interactions.
- Use if_else if wherever appropriate.
- Movement with keyboard arrow keys.
- Use text() to relay story about interactions. Think about a text-box at the bottom of the canvas.
- Use functions to chunk your code into re-usable blocks. All code should not be in the draw function.
- Scenic background.
- Implement score keeping and a way for the game to finish - Completion Criteria.
- Present a game completion screen.
- Well commented code. Also, explain the details about the game in a comment at the top of code.
- A nice extension of your ideas would create a canvas where the interactions teach about the environment, sustainability…a real world issue. (Run the idea by me before you implement it.)
- Name your sketch and comment your code.
- Use camelCase for variable, function names, or where ever appropriate.
- Use variables for modifiable colors and other elements that the user could set at the top of the program.
- Use functions for blocks of reusable code.
- Discuss the answers to study questions.
Resources
- Video: 18 Collision Detection and Importing a library
- Link: Find keyCodes