Coordinates and Collision
by Anonymous
Add to or subtract from x and y, where y grows downward, to move an object and use inequalities to tell whether two boxes collide.
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About this app
Coordinates and Collision is an interactive coding basics lesson about using x and y values to position and move objects on a board. Learners practice the screen-coordinate convention in which x increases to the right and y increases downward, then build a comparison-based rule to determine whether two boxes overlap. Three guided tabs provide hands-on challenges for positioning, step-by-step movement, and collision testing.
Use cases
- Beginners learning JavaScript coordinates
- Students studying game programming fundamentals
- Teachers demonstrating screen-coordinate systems
- Learners practicing arithmetic and comparison operators
Features
- Four coordinate-placement challenges using plus and minus controls
- Step-based movement exercises with selectable x and y increments
- Visual code snippets showing position updates and collision rules
- Collision challenges requiring checks in four directions
- Test layouts with immediate pass or error feedback
- Reset, next-challenge, and optional sound controls