Forums → Programming Forum → need help with variables

I don't know much about AS2, but it should go like this:

1. Make the button.
2. Right click it, and select "actions".
3. Type in:
on (release)
{
speed += 2;
}

Just replace 2 with how much speed you want on each click.

But that would keep adding speed. I suggest you remove the button after you do that. Or you could go:
on(release){
speed = (number of speed you want)
trace("markzi is my hero )
// just in case
}

I would suggest using two buttons, one to increase and one to decrease.
I dislike onClipEvents, as they make debugging more difficult, but I will give you that method.

(Where int = interval by which to modify the variable)
Up button:
on(release){
_root.speed -= int
}

Down button:
on(release){
_root.speed += int
}

thanks for all of ur suggestions but they dident work D:

xomo

You should put this in your code:

on(release){
onClipEvent (load) {
var grav:Number = 0;
// gravity
var speed:Number = 10;
// how fast you walk
var jumpHeight:Number = 15;
// how high you jump
var slow:Number = .7;
// sets water falling speed
var slowspd:Number = speed/1.5;
// sets water walking speed
var setspeed:Number = speed;
var scale:Number = _xscale;
var ex:Number = 5;
// makes hitTests better, change for a closer hitTest (warning, more buggy if smalle, less real if further)
this.gotoAndStop(2);
}
onClipEvent (enterFrame) {
grav++;
_y += grav;
while (_root.ground.hitTest(_x, _y, true)) {
_y--;
grav = 0;
}
if (_root.water.hitTest(_x, _y, true)) {
if (grav>0) {
grav *= slow;
}
speed = slowspd;
} else {
speed = setspeed;
}
if (Key.isDown(Key.RIGHT)) {
_x += speed;
_xscale = scale;
if (_root.ground.hitTest(_x, _y+3, true)) {
this.gotoAndStop(1);
} else {
this.gotoAndStop(2);
}
} else if (Key.isDown(Key.LEFT)) {
_x -= speed;
_xscale = -scale;
if (_root.ground.hitTest(_x, _y+3, true)) {
this.gotoAndStop(1);
} else {
this.gotoAndStop(2);
}
} else {
if (_root.ground.hitTest(_x, _y+3, true) && !Key.isDown(79) && !Key.isDown(73)) {
this.gotoAndStop(3);
}
}
if (Key.isDown(Key.UP) && !Key.isDown(87) && !Key.isDown(65) && !Key.isDown(68) && !Key.isDown(73)) {
this.gotoAndStop(5);
}
if (Key.isDown(Key.UP) && !Key.isDown(87) && !Key.isDown(65) && !Key.isDown(68) && !Key.isDown(79)) {
this.gotoAndStop(4);
}
if (Key.isDown(Key.UP) && _root.ground.hitTest(_x, _y+3, true)) {
grav = -jumpHeight;
_y -= 4;
this.gotoAndStop(2);
}
if (_root.ground.hitTest(_x+(_width/2)+ex, _y-(_height/2), true) || _root.ground.hitTest(_x+(_width/2)+ex, _y-(_height/6), true) || _root.ground.hitTest(_x+(_width/2)+ex, _y-_height, true)) {
_x -= speed;
}
if (_root.ground.hitTest(_x-(_width/2)-ex, _y-(_height/2), true) || _root.ground.hitTest(_x-(_width/2)-ex, _y-(_height/6), true) || _root.ground.hitTest(_x-(_width/2)-ex, _y-_height, true)) {
_x += speed;
}
if (_root.ground.hitTest(_x, _y-_height-15, true)) {
grav = 1;
}
}
}

Make sure you are incrementing "setspeed" & not "speed". You are constantly modifying the "speed" variable:

speed = slowspd;
} else {
speed = setspeed;

What I did is created two new symbols - specifically buttons - called speedUp and speedDown and placed them on the screen. I then provided with the instance names speedUpButton and speedDownButton respectively.

Then in your actions for the player you can insert the following:

_root.speedUpButton.onPress = function(){setspeed ++;}
_root.speedDownButton.onPress = function(){setspeed --;}

where would i put ]
_root.speedUpButton.onPress = function(){setspeed ++;}

You should be able to stick it in the actions for the player:

onClipEvent (enterFrame) {
_root.speedUpButton.onPress = function(){setspeed ++;}
grav++;
_y += grav;

OMGGGGGG IT WORKED THXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

now will] it work if
_root.jumpUpButton.onPress = function(){setjumpHeight += 5;}
to change the jumpHeight ?

No offense, but did you copy this code?

Never attempt to use snippits of code in a game. Snippits should be for learning purposes only, or you will never truly understand the language.

Imagine only being able to speak in sentences someone else wrote for you

yes i did copy i only started lately and is trying to learn the language but don't know where to start so i went online and found codes for a game and thought i would start there
if u could tell me a place to start i would be thankful