Sensing

Returns the time in seconds since the previous frame.

Usually about 0.016 at 60 FPS, and never more than 0.1. It is 0 in When Game Starts.

Example Multiply a speed in pixels/second by Delta Time so movement is the same on fast and slow computers.

True while a dialogue box or choice menu is waiting for the player.

Walk on grid (arrows / WASD) and Platformer controls already pause by themselves; use this block to pause your own controls too.

Returns the distance in pixels from this object to another object.

Measured in a straight line between the top-left corners of both objects, not their centers. Returns 0 if the object is not found.

True on the frame this object finishes a step of Walk on grid (arrows / WASD).

It is true for exactly one frame per completed cell, so it is a good moment to check tiles, doors or random encounters.

True when the named grid-walking object stands next to this one and faces it.

The other object must be standing still, and the cell right in front of it must overlap this object.

Example On an NPC: Is faced by Player And Key just pressed z opens a dialogue.

True only on the frame one of the listed keys goes down.

Holding the key does not repeat it; it becomes true again only after the key is released and pressed again.

Example Use it in On Update to fire one bullet per press.

True while a key is held down.

It stays true every frame the key is held. Use Key just pressed to react only once per press.

True when the named object touches this one while landing on its top, as in a stomp.

It counts when the other object is not moving upward and its bottom edge is within the upper part of this object's collider. This object needs a collider.

Example On an enemy: if Lands on me Player, Launch upward Player and destroy the enemy.

True while a mouse button is held down.

Returns the mouse pointer's horizontal position in world pixels.

Uses world coordinates, taking the camera position and zoom into account, so it can be compared directly with object positions.

Returns the mouse pointer's vertical position in world pixels.

Uses world coordinates with the camera applied. Y grows downward: bigger values are lower on screen.

Returns this object's rotation in degrees.

Returns this object's X position in pixels.

This is the left edge of the object in world coordinates.

Returns this object's Y position in pixels.

This is the top edge of the object in world coordinates. Y grows downward.

Returns the seconds elapsed since the scene started playing.

It starts at 0 each time a scene starts or the game restarts.

True when this object is touching any object with the given name.

Both objects need a collider enabled. Trigger colliders count too. Inactive objects are never touching.