First of all, you should know what a command is.
Now you may be wondering what's a command prompt.

To start a little bit, we should start using one of the most basic commands ever.
This command will set the player's health to 5. Simple? Let make it a little bit more interesting.
You can change the operator, to make operations such as add or subtract.
You can also change other parameters, such as money, ammo, max health etc.

Platform Builder allows you to comment your code. This is part of the code that won't be executed nor compiled but eases the understanding process of the code, commenting what all stuff does. Anything after // won't be executed nor compiled. Take that in account!
You can add comments like this:

Note: Most PB commands aren't space-sensitive nor case-sensitive

Most of the commands in Platform Builder works in the same way:
There are some other ways to use commands, but this is one of the simplest ways.

Yeah. You listened right! Platform Builder also allows you to create custom variables.
There are four types of variables.

• Area variables
  
• Course variables
  
• Game variables
  
• Local variables

The difference between them is how much time they will last to be destroyed. Area ones will be cleared once you leave that area. Course ones when you leave the full course. And game ones will last forever. Its recommended to use them correctly for avoiding variable cluttering on memory, causing bad performance.

Local variables are special because they are local to the object that executed them. This means, you can have 5 same enemies and each one will have this same variable, but each one will have a different value for it. This could be useful in various manners. One example is to count how many times an enemy jumped.

First of all, you should declare any variables you will use before using them.
To declare any variable just say the type and "var", then the name for it.
Example:

For changing its value, we don't need to put the type again


You can also get the value of another variable by just using its name.

You can also use [] around the variable names and will work the same way. But this is made specially for text commands. In those commands just placing the name won't work.

Important things to note:

• Variable names can't hold any numbers, and probably won't hold most of other special characters too.
  
• If a variable is not working properly, you may check before if the variable is being confused by Platform Builder as a command. (For example, naming a variable health will make PB confuse it with health command). You should avoid using command names for variables.

Conditionals are such one of most common things in programming. Conditionals allows you to check for stuff before doing anything. That means, you can check if your money is 100 or higher, and if it does, gives you a life.

Example:

Conditionals can have multiple operator checkers:

You can also combine conditionals, for example:

You can use & for checking if both conditions meet, and | for checking if at least one of them meets.
You can do this way too for the same thing:

You can check else after a conditional, and it will be executed if the condition doesn't meet.

Lastly, you don't need to put {} if there is only one command to be executed

Some important things to note:

• In Platform Builder, tabbing isn't really needed, but its helpful to read the code more clearly.
  
• Conditionals are kinda more space-sensitive. Just saying!

You've learned the basics of command prompt. Now to finish, try to put the below code on the looping command prompt of your character:

Also, check full list of commands, conditionals and bracketings here: https://theplatformbuilder.com/Command-Prompt/

See you next time!