<thinking>To create a playable tile-based platformer on a canvas with procedural graphics, I'll need to write HTML, CSS, and JavaScript code. The game will be implemented in a single file called `index.html`. The HTML will define the canvas element, CSS will style the canvas and game elements, and JavaScript will handle the game logic, including tile rendering, player movement, collision detection, and enemy behavior. I'll need to generate procedural graphics for the level, player, hazards, and enemies. The level will be a simple grid of tiles, and the player and enemies will be represented as colored squares. Hazards will be represented by different colors or patterns on the tiles. I'll start by creating the basic structure of the `index.html` file and then add the necessary CSS and JavaScript code to implement the game.</thinking> <thinking>Now that I have created the basic structure of the `index.html` file, I need to implement the game logic. I'll start by adding the input handling function and the main game loop. The input handling function will update the player's position based on user input, and the game loop will call the update and draw functions in a continuous loop. I'll also need to add procedural graphics for the level, player, hazards, and enemies. The level will be a simple grid of tiles, and the player and enemies will be represented as colored squares. Hazards will be represented by different colors or patterns on the tiles.</thinking> <thinking>Now that I have implemented the input handling and main game loop, I need to add procedural graphics for the level, player, hazards, and enemies. The level will be a simple grid of tiles, and the player and enemies will be represented as colored squares. Hazards will be represented by different colors or patterns on the tiles. I'll start by adding procedural graphics for the level and player. The level will be a simple grid of tiles, and the player will be represented as a blue square. I'll also add a simple enemy that moves randomly across the screen.</thinking> <thinking>Now that I have implemented procedural graphics for the level, player, and enemy, I need to add collision detection and hazards. The player should not be able to move through walls, and the player should lose if they touch