010 : Horizontal only
You:
Alright, let's make the player move left and right.
Balthazar:
Good. And how do you think you should go about doing that?
You:
Umm.. by turning off the up and down keys?
Balthazar:
Right. And do you know what code you need to remove to turn off those keys?
You:
Well, the check_input() function handles the keyboard input. So I can just remove the parts that deal with the up arrow and down arrow.
Balthazar:
Excellent, try that and verify that it works.
script.js: Delete the code that moves the player up and down.
function check_input() {
...
// Right arrow or 'd' to move right.
if (_game.keymap[39] || _game.keymap[68]) {
_player.velocity_x = 1;
}
// Up arrow or 'w' to move up.
if (_game.keymap[38] || _game.keymap[87]) {
_player.velocity_y = -1;
}
// Down arrow or 's' to move up.
if (_game.keymap[40] || _game.keymap[83]) {
_player.velocity_y = 1;
}
}
// Up arrow or 'w' to move up.
if (_game.keymap[38] || _game.keymap[87]) {
_player.velocity_y = -1;
}
// Down arrow or 's' to move up.
if (_game.keymap[40] || _game.keymap[83]) {
_player.velocity_y = 1;
}
}
Congratulations! You've earned the Movement I - Horizontal badge!
GOTO 015 if you already have the Sprite I - Origin badge.