Variables

Calculates a op b and stores the result in a variable.

The game stops with an error if a or b is not a number (for example a template pointing to a variable that does not exist), when dividing by zero, or when the target object is not found.

Example Set damage to {attack} - {Enemy.defense} with rounding round.

Adds an amount to a global variable.

Adds an amount to one of this object's variables.

If the variable is missing or does not hold a number, it is treated as 0 first. The result is stored as a decimal number.

Example Change Variable score by 1 when a coin is collected.

Adds an amount to a variable on another object.

Example From a coin: Change variable of object Player score by 1, then destroy the coin.

Deletes every global variable.

After this, Global variable returns 0 for any name. Object variables are not affected.

Example Run it when the player picks New Game in the title menu.

True when one of this object's variables compares to a value as chosen.

Numbers are compared as numbers. If either side is not a number, they are compared as text ignoring case, and only = and != can be true.

Example Compare variable hp <= 0 inside If to handle a defeat.

Subtracts the frame time in seconds from a variable, stopping at 0.

Put it inside On Update so the variable goes down by one each real second. It never goes below 0.

Example Set cooldown to 0.5 when shooting and only allow a new shot when cooldown is 0.

Returns the current value of one of this object's variables.

In a number socket, true counts as 1, false as 0, and text that is not a number as 0. In a condition socket, 0, empty text and false count as false.

Returns the value of a global variable, or 0 if it does not exist yet.

Hides a variable previously shown with Show Variable.

Sets a variable to the value stored for a key in a key=value table.

Numbers and true/false in the result are converted; other values are stored as text. An entry without = stops the game with an error.

Sets a variable to one random item from a list separated by |.

Numbers and true/false are converted. If there are no items, the game stops with an error.

Stores the highest value a variable has reached in another variable, even across restarts.

The best value is remembered for the whole play session, so it survives Restart game, but it is not saved to disk when the game closes. Both names are required, or the game stops with an error.

Sets a global variable only if it does not exist yet.

Useful in When Game Starts so a scene works when you play it on its own, without overwriting values carried from an earlier scene.

Sets a game-wide global variable that is kept when another scene loads.

Read it with Global variable or as {global.name} in templates. Restart game puts globals back to the values they had when the scene started.

Sets one of this object's variables to a value.

The variable is created if it does not exist yet. Each object (and each clone) has its own copy.

Sets a variable on another object, creating it if needed.

If no object has that name, nothing happens.

Shows a variable and its live value in the corner of the game view.

The value appears as name: value at the top-left of the game view and updates every frame. The variable must already exist when the block runs, otherwise nothing is shown.

Example Use it in When Game Starts to watch a value while you test.