Set

set computes nothing and asks nobody anything. It puts a value into a variable — and that is all.

It has two fields: the variable’s name on the left, what to put into it on the right. The right-hand side can be any of four things:

• a number — 5, -0.25, 1e6;
• text in quotes — "copper";
• a name the game has taken — @copper, @this, @time;
• another variable — then the value is copied.

There are no expressions on the right: count + 1 is not a value but a calculation, and that lives in op. set can only put down something ready.

Lessons

1. Assignment and copyingPut down a number, a text or another variable's contents — and how a copy differs from the original
2. Content constantsAn item, a liquid, a block and a unit are values like a number: they go into variables and get passed to instructions

What you need first

«Variables and names» — where variables come from and which names are already taken. The lesson will tell you the rest itself.