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A Clone of the Classic Arcade Game, Frogger

Play Game

  1. Download the .zip file for this repository.
  2. Open index.html, choose a player from the home menu and the game will start automatically! Use your keyboard keys ( ⬅️ ⬇️ ➡️ ⬆️ ) to move across the board.
  3. Goal of the game: reach the water blocks at the top of the screen without getting eaten by a bug.

Rules

  • If your player and bug collide, player will lose a point and automatically return to home position.
  • If your player reaches the water, he/she will gain a point and automatically return to home position
  • Each time your player achieves 10 points, he/she moves up one level. Once your player reaches a new level, he/she retains that level permanently. However, you cannot save your progress if you close the browser window!

Build

This game uses the Javascipt Canvas API and OOJS techniques to draw animation frames and trigger game events. If you want to change how the game operates, read further.

Core Functionality app.js relies on init.js to determine the image that will represent the player on the canvas. Aside from that, app.js provides the majority of the app's functionality.

Important notes about engine.js Note that engine.js loops through checkCollisions(), along with the update and render methods on the allEnemies array and the Player object at window.requestAnimationRate(). For this reason, the global Game object - which is used to control the number of enemies on the canvas - is separated from the Player and Enemy objects. The Game object controls memory leak by adding and removing enemies on the canvas every few seconds, instead of running calculations at window.requestAnimationRate().