As game developers, we often want to place objects randomly to add variety to the players’ experiences. With randomized levels, the experience is different every time you play.
That’s what rogue-lites like The Binding of Isaac do.
In this project, you’ll learn to randomly place sprites in predefined areas without overlapping.
It is the first step to learn about Procedural Content Generation (PCG in short). It’s the process of generating game content like levels with a set of code rules. Games like Spelunky and Dead Cells and more use this approach.
You’ll learn:
for loops to place objects on a
grid.We’ll start by placing rocks on a grid to learn about nested
for loops.
We’ll then introduce a random offset for each rock inside their grid cell. This technique allows you to distribute objects evenly and naturally on a map without overlap.
We call this a blue noise distribution.
Lastly, we’ll place the rocks on a predefined area of a level using the node.
In the next lesson, we’ll start by using code to place random rock sprites on a grid.
To get started, open the project “Learn to Code with Godot:
Practices” in Godot and, in the FileSystem dock, expand the
RandomRocks directory. We will create a scene together. See
you in the lesson!