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Table 2 Description of events generated in PP

From: The incubation effect among students playing an educational game for physics

Event category



Menu Events

Game Start (time, server time, session id, user id)

When player successfully logs in to the game

Menu Events

Game end (time)

When the player exits/closes the game

Crash Recovery (time, server time)

Marks a point in the log where the game was restarted from a crash

Menu focus (time)

When the main menu switches focus to a new playground or level; records level and playground

Level Events

Level Start (time, level)

When the player starts a level

Level End (time, badge)

When the player exits the level

Level Pause (time, elapsed time)

When the player pauses the game

Level Restart (time)

When the player restarts the level without exiting from it; no decision yet whether the level is solved or not

Play Events

Draw Freeform/Pin/Rope (time, elapsed)

When the player draws a freeform object, pin, or rope; records dimension and position of object

Erase (time, object id)

When the player erases a freeform, pin, or rope object

Lost (time, object id)

When an object drops off the play area

Nudge (time, direction)

When the ball is clicked to nudge it

Click (time, button, position)

When the player clicks on the screen in a way that has no effect on the game

Collision (time, objects, position)

When two objects begin to touch

Agent Events

Pendulum Object (time, strength)

When an object rotates on a single pin

Pendulum Strike (time, strength)

When a pendulum object strikes the ball causing it to move some distance; records rotation ball movement

Lever (time, strength)

When a player draws an object that falls on another object, which in turn rotates on a fulcrum to launch the ball

Springboard (time, strength)

When a player draws an object that is attached to 2 or more pins and rotates to propel the ball upward

Ramp (time, elapsed, movement)

When the ball rolls along an object across the screen

Pulldown (time, elapsed, movement, pin count)

When a player draws an object attached to another object by pin(s) and the objects fall down some distance

Stacking (time)

When a player draws objects through the ball to move it up

Diver (time, distance)

When a player draws objects that fall and hit the ball thus propelling it