Appendix C — Cheat Sheet

Every Event and Action Picture Puzzle uses, with what it does in one line, in Myth’s own words.

C.1 Events

Command Pressed: Runs once when the selected Button Command matches its Single, Double, or Triple Press pattern.
Create: Runs once when an instance is created.
Custom Event: Runs when another action or script triggers the selected named custom event.
End Step: Runs at the end of each game step, after regular Step events.
Focus Lost: Runs once on the first step after the game loses the player’s input focus (the player switches to another window or tab).
Game Start: Runs once when the game starts.
Game State Changed: Runs after the singular project Game State changes.
Mouse Pressed on Object: Runs once when a mouse button is newly pressed over this instance.
Mouse Release: Runs once when the selected mouse button is released anywhere in the game view.
Mouse Released on Object: Runs once when a mouse button is released over this instance.
Recurring Timer: Runs each time the named recurring timer comes due.
Scene Start: Runs when the scene starts.
Step: Runs every game step while the instance exists.
Touch Cancelled: Runs once when the device cancels a touch in progress (for example a system gesture or an incoming call), before that touch’s Mouse Release and Mouse Released on Object in the same step, so a cut-off touch can cancel what it was doing.
UI Activated: Runs on this UI Object when the player activates its button or confirms one of its menu rows.
Variable Changed: Runs once, at the end of a step, after the selected Global Variable changes value.

C.2 Actions

Change Component Value: Changes one mutable Object Component value through its direct path.
Change Sprite Tint Property: Changes exactly one persistent sprite-tint property while preserving every unrelated tint setting.
Change Variable: Changes one declared variable: a Local Variable of this Logic (private to this Logic Component, or to this call of a Function), a Per Instance Variable of the targeted Object (self.name), a Changeable Shared Variable (@self.name, @Guard.name: one value for every instance of that Object), or a Global.
Check Cooldown Ready: The produced Boolean can be referenced directly by a later If, While, or value expression.
Check Game State: Runs nested actions while the singular project Game State matches the selected value.
Check Input Context Active: Runs nested actions while the selected Input Context belongs to the active-context set.
Control Data Row: Adds or updates one Data Table row, or removes it.
Control Tween: Stops, pauses or resumes running tweens: every tween of Applies To, the tweens of one value, or every tween with a Name.
Create Instance: Creates one instance at world XYZ, Self-relative XYZ, or an exact named Coordinate, and names it (Created As).
Declare Variable: Brings a Local Variable into existence.
Else: Runs the Else action.
Generate Random Integer: Makes a whole number between Minimum and Maximum, including both endpoints, using the seeded gameplay random stream.
If: Runs its Then branch when its Condition is true.
Repeat: Runs its vertical child stack Count times.
Return: Ends this run here.
Run Code (JS): Runs one inline JavaScript snippet in the current event context.
Set Data Cell: Writes one cell of a Data Table row (the live game copy, not the authored resource).
Set Frame: Sets frame for the target or game.
Set Game State: Changes the singular project-wide Game State and runs Game State Changed when the value changes.
Set Input Context Active: Activates or deactivates one Input Context without changing any other active contexts.
Set Position: Moves the target immediately to a world position, an Object-local offset, a named Coordinate, or a Transform bounding-box anchor.
Set Scale: Sets the Object instance’s live size multipliers.
Set Sprite: Changes the sprite resource.
Set Visible: Sets visible for the target or game.
Set Z Order: Sets the exact Z Order used to sort this instance.
Start Cooldown: Starts a named cooldown on the target instance.
Start Recurring Timer: Starts or restarts one saveable named recurring timer.
Stop Recurring Timer: Stops one named recurring timer.
Switch Mode: Sets the Event to One at a time and turns on only the selected Mode.
Trigger Custom Event: Broadcasts one named Custom Event to matching Custom Event listeners.
Trigger Custom Event on Object: Sends one named Custom Event to the selected Object instance without broadcasting it to unrelated Objects.
Tween: Moves one value toward a target over time: any Number, Vec or Color of a Component (self.transform.position, self.transform.opacity, a light’s color, a Data Structure field) or a Variable.

C.3 Reading Values From Tables

data('table', row, 'column'): the value in one cell: the row by its name or number, the column by its name.
dataFind('table', 'column', value): the number of the first row whose column holds this value.
dataCount('table'): how many rows the table has.