As an AI language model, I can certainly help you write a simple game implementation using JavaScript within a single HTML file. Please find the code snippet below as a starting point for a game where objects appear and can move or remain static every second:
In the provided implementation, a game container is defined using the `div` element with the id `game-container`. The `getRandomPosition()` function returns a random x and y coordinate within the game container's boundaries.
The `createPictogram()` function creates a new pictogram element with a random position based on the game container's size.
The main logic revolves around the `setInterval()` function, which executes a given function every second. It creates a new pictogram and appends it to the game container. If the randomly generated `shouldMove` value is true, the pictogram's position is updated every second, simulating movement.
You can customize the styling, pictograms, and gameplay mechanics further based on your preferences.