Expression

Things like “if it’s raining outside” or “if I have two cookies and three apples” which you’ll check to see whether they’re true or not (as in, do you have two cookies and three apples? Is it raining outside?). This “checking” is called “evaluating” as in, to evaluate an expression.

Glossary: Evaluate
Glossary: Conditional
Equality Comparisons in Ren'Py
This tutorial covers equality comparisons in Ren'Py, as well as the concepts of Truthy and Falsey. You'll learn how to compare things like strings and integers to display different dialogue.
Simple Variable Types in Ren'Py
This tutorial covers four variable types: booleans, integers, floats, and strings. You'll learn when and how to use them in your game to track information.
Booleans vs Strings
In this brief tutorial, you'll learn to avoid a common beginner mistake of using booleans where strings would be a better choice of variable.

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