How does wonder mail generate levels

Wonder Mail is a popular feature in the Pokémon franchise, particularly in the Pokémon Mystery Dungeons series. It generates levels for players to explore, and its algorithm is quite fascinating. Here's a simplified explanation of how Wonder Mail generates levels:

Seed Generation: When a player creates a Wonder Mail, the game generates a unique seed value, which is a random combination of numbers. This seed value is used as the foundation for generating the level.

Perlin Noise: The game uses Perlin noise, a type of gradient noise developed by Ken Perlin in the 1980s, to create a 2D grid of values. Perlin noise is a mathematical function that generates a smooth, continuous gradient of values, which is perfect for creating natural-looking terrain.

Grid Generation: The game uses the Perlin noise values to generate a grid of terrain types, such as grass, rock, water, and so on. The grid is divided into small squares, called "tiles," which are then assigned a terrain type based on the Perlin noise values.

Tile Placement: The game uses the terrain types to place tiles on the grid, creating a 2D map. The tiles are arranged in a way that creates a natural-looking landscape, with hills, valleys, and other features.

Object Placement: Once the terrain is generated, the game places objects such as Pokémon, items, and obstacles on the map. These objects are also generated using Perlin noise or other algorithms to create a sense of randomness and variety.

Level Shaping: The game uses a combination of algorithms and heuristics to shape the level, creating a sense of flow and direction. This includes placing paths, creating areas of interest, and hiding secrets and surprises.

Final Touches: The game adds final touches to the level, such as adjusting the terrain, placing additional objects, and ensuring that the level is fun and challenging.

Seed Variation: To create a sense of variety and replayability, the game uses different seed values to generate different levels. This means that even if two players generate the same Wonder Mail, they will still experience a unique level.

Overall, Wonder Mail's level generation algorithm is a complex combination of mathematical functions, algorithms, and heuristics that work together to create a unique and engaging experience for players.