if event key =k_escapeterminate(at any time during the gamethe player can press the esc key on the keyboard to quit line checks if the key that was released was the esc key by checking event key =k_escape if soline calls the terminate(function to exit the program if event key =k_left or event key =ord(' ')moveleft false if event key =k_right or event key =ord(' ')moveright false if event key =k_up or event key =ord(' ')moveup false if event key =k_down or event key =ord(' ')movedown false lines to check if the player has stopped holding down one of the arrow or wasd keys in that casethe code sets the corresponding movement variable to false for exampleif the player was holding down the left arrow keythen the moveleft would have been set to true on line when they release itthe condition on line will evaluate to trueand the moveleft variable will be set to false the move_ip(method if event type =mousemotion if the mouse movesmove the player where the cursor is playerrect move_ip(event pos[ playerrect centerxevent pos[ playerrect centerynow that you've handled the keyboard eventslet' handle any mouse events that may have been generated the dodger game doesn' do anything if the player has clicked mouse buttonbut it does respond when the player moves the mouse this gives the player two ways of controlling the player character in the gamethe keyboard or the mouse the mousemotion event is generated whenever the mouse is moved event objects with type set to mousemotion also have an attribute named pos for the position of the mouse event the pos attribute stores tuple of the xand -coordinates of where the mouse cursor moved in the window if the event' type is mousemotionthe player' character moves to the position of the mouse cursor post questions to