Appendix C — Cheat Sheet

Every Event and Action Sky Ace uses, with what it does in one line, in Myth’s own words. (The four template Logic Components, Top-down Controls, Keep Inside Box, Meter with Thresholds and Pause Overlay Lifecycle, are not included: they come whole.)

C.1 Events

2D Direction Pressed: Runs once when the selected Left, Right, Up, or Down direction is pressed.
Collision: Runs when this instance overlaps or collides with the selected object.
Collision Enter: Runs once when this instance starts colliding or overlapping with the selected object.
Collision Leave: Runs once when this instance stops colliding or overlapping with the selected object.
Command Held: Runs every simulation step while the selected Button Command is held.
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.
Game Start: Runs once when the game starts.
Game State Changed: Runs after the singular project Game State changes.
Leave View: Runs once when this instance leaves all active camera views.
Meter Threshold Reached: Runs once when Update Meter moves the named instance variable from below its threshold to at-or-above it.
Mouse Enter: Runs when the pointer enters this instance.
Mouse Pressed on Object: Runs once when a mouse button is newly pressed over this instance.
On Disable: Runs once after this Logic changes from enabled to disabled.
On Enable: Runs once after this Logic changes from disabled to enabled.
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.
Variable Changed: Runs once, at the end of a step, after the selected Global Variable changes value.

C.2 Actions

Attach to Parent: Attaches this instance to the nearest live instance of one selected parent Object.
Burst Particles: Emits a one-shot Particle effect at the Object origin, a named Coordinate, a bounding-box anchor, or an explicit world position.
Camera Flash: Flashes one camera view with a transient color veil that fades from opaque to clear.
Camera Shake: Shakes the camera — impacts, explosions, spells.
Change Component Value: Changes one mutable Object Component value through its direct path.
Change Sprite Mask Property: Changes exactly one retained sprite-mask property while preserving every unrelated mask setting.
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.
Control Sound: Plays, loops, crossfades, or stops one selected Sound resource.
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.
Destroy Instance: Destroys the selected target: Self, Event other, or all live instances of a named Object.
Else: Runs the Else action.
End Game: Ends the current game, fires Game End once, and releases the running scene.
Generate Random Integer: Makes a whole number between Minimum and Maximum, including both endpoints, using the seeded gameplay random stream.
Generate Random Number: Makes a decimal number between Minimum and Maximum using the seeded gameplay random stream.
Go to Scene: Goes to one selected scene, optionally fading or crossfading.
If: Runs its Then branch when its Condition is true.
Load Persistent Value: Reads a device-persisted value, or the Default if none is stored yet, and publishes one typed Action result.
Pick Data Row: Chooses one eligible row with Myth’s deterministic game RNG and publishes its row name, index, and chosen weight as one typed Action result.
Popup Text: Floating text that rises and fades - damage numbers, “+10 gold”, “LEVEL UP!”.
Repeat: Runs its vertical child stack Count times.
Reset Modes: Restores the selected Object Event to its authored One at a time or Combined setting, starting Modes, and order.
Restart Scene: Restarts the current scene without restarting the complete game run.
Return: Ends this run here.
Save Persistent Value: Writes one device-persistent value under one title-scoped key.
Set Alpha: Sets alpha for the target or game.
Set Direction: Turns the current velocity without changing its speed.
Set Game Paused: Pauses or resumes the whole simulation.
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 Logic State: Enables, disables, or toggles one attached Logic on each target instance, firing lifecycle events only for real state transitions.
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 Speed: Changes the current velocity magnitude without changing its direction.
Set Sprite Mask State: Changes only whether this instance uses its retained visual sprite mask.
Set Velocity: Sets the exact horizontal velocity, vertical velocity, or both.
Set Visible: Sets visible for the target or game.
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.
Turn Off Mode: Turns off the selected Mode without changing the Event’s other Modes or its One at a time or Combined setting.
Turn On Mode: Sets the Event to Combined and turns on the selected Mode.
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.
While: Runs its vertical child stack while its Condition stays true.

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.