The video is a tutorial on programming in Apple Basic, using an Apple 2+ computer. The host, presumably a software engineer or a coding enthusiast, is attempting to code a game of snake.
The video begins with the host introducing the video, the coding challenge, and the tools they are using. They then go into detail about the Apple 2+ computer and Apple Basic, explaining how to use the command prompt and write code.
The host then begins to write a program for the game of snake, starting with setting up the game's parameters and variables. They then proceed to animate the snake and handle keyboard inputs for controlling the snake's movement. They also implement a function to read keyboard input and change the values of x and y based on the input.
The host then adds a feature to slow down the game by writing a for loop that counts through a series of numbers before moving on to the next line of code. They also add a food feature and make the snake grow when it eats the food.
Throughout the video, the host encounters several issues, such as the snake filling the screen, the snake's tail disappearing, and the food blinking. They solve these issues by adjusting their code and making use of the computer's memory.
The host also adds a feature to make the snake grow longer when it eats the food. They do this by using an array to store the snake's positions and updating the array each time the snake moves.
In the end, the host successfully creates a working version of the snake game, demonstrating their coding skills and understanding of Apple Basic.
1. The video is a coding challenge on the coding train, showcasing the creation of a game using an Apple 2 Plus computer in Apple Basic [Source: Page 1].
2. The host is attempting to program a game of snake, a classic arcade game where a line that grows in length with each movement eats food and grows longer, and the game ends when the line runs into itself.
3. The host starts by setting up the game environment, defining the width and height of the game canvas, and setting the initial position of the snake.
4. The host then explains how to animate the snake by incrementing and decrementing the x and y coordinates of the snake's position.
5. The host introduces the concept of keyboard interaction, using the keys w, s, a, and d for up, down, left, and right respectively.
6. The host creates a subroutine to handle keyboard input, using the PEEK command to read the computer's memory to determine which key was pressed.
7. The host adds a delay to the game using a FOR loop to slow down the snake's movements.
8. The host introduces the concept of arrays to store the snake's body positions, allowing the snake to grow in length as it eats food.
9. The host creates a subroutine to initialize the food's location randomly within the game canvas.
10. The host adds a feature to the game where the snake grows in length when it eats the food.
11. The host introduces a bug where the snake's tail blinks when it moves. The host resolves this by adding a subroutine to erase the snake's tail before moving it to the next position.
12. The host adds a feature to the game where the snake's tail shifts down in the array when it eats the food, creating the illusion of the snake growing in length.
13. The host resolves a bug where the food moves after the snake eats it. The host adds a command in the subroutine where the snake eats the food to also move the food to a new location.