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I have a question, does the character have to be a little circle? or can we make it different?

HI,
This missing from the movement key detection:
if(upKeyDown || mainJumping){
mainJump();
}
Put that in and he’ll jump.

hi how can i make it work in AS2

Thank boy! this is great tutorial! thank!

exactly where in the actions layer do i have to place the second and the third codes?

i pasted all the code in as3 it all works but the jumping action where do i put?

if(upKeyDown || mainJumping){
mainJump();
}

YES!!! thank you very much for this tutorial. REAL NICE!!!!!

Every time I get it to put in the first code it says
**Error** Scene=Scene 1, layer=actions, frame=1:Line 14: The class ‘Event’ could not be loaded.
function moveChar(event:Event):void{

**Error** Scene=Scene 1, layer=actions, frame=1:Line 30: The class ‘KeyboardEvent’ could not be loaded.
function checkKeysDown(event:KeyboardEvent):void{

**Error** Scene=Scene 1, layer=actions, frame=1:Line 48: The class ‘KeyboardEvent’ could not be loaded.
function checkKeysUp(event:KeyboardEvent):void{

Total ActionScript Errors: 3 Reported Errors: 3

If you have any suggestions, please tell me.

hey, thanks real helpful. i was wondering what can be done to make it jump higher?

okay.. i got an error it says: 1120: Access of undefined property mainJumping. and: 1180: Call to a possibly undefined method mainJump.

this doesnt work D: does it can be used on flash 8? and what actions need to be inside the balloon and whats in layer?!?!?!?! plz someone help me D: heres my email. gangstarapper_94@hotmail.com i wish some one seriusly help me whit this.

The first block of code doesn’t work on its own because the jump variable and function aren’t identified yet. Also, for the jumping math, I just use jumpSpeed += 1, and it looks fine.
For those who ask where to put code etc., I suggest learning your basics before tackling something this advanced. 😛

Great tutorial. Finally someone explained and commented the code for as3.
But my guy after first jump is higher than at the beginning. Why?

the code does not wofrk for me

Hi,

thanks very much for your great tutorials. They are brilliant!

I have one problem with AS3 in this lesson above.

I modified your AS3 script and I added a motion hero. Almost everything is OK. He jumps correctly, but when he walks his legs don’t move.

What’s going on? Where the problem is?

I’m pasting a part of the code, which is connected to this problem, I suppose:

hero.addEventListener(Event.ENTER_FRAME, moveChar);
function moveChar(event:Event):void{
//if certain keys are down then move the character
if(leftKeyDown){
hero.x -= mainSpeed;
hero.scaleX=1;
hero.gotoAndStop(‘walking’);
}
else if(rightKeyDown){
hero.x += mainSpeed;
hero.scaleX=-1;
hero.gotoAndStop(‘walking’);
}
if(upKeyDown || mainJumping){
mainJump();
hero.gotoAndStop(‘jumping’);
}
else {
hero.gotoAndStop(‘still’);

}
}

Thank in advance,
Marcin

Познавательно, а продолжение будет?

thanks so much, as2 -> get out

Its so ridiculous how many people think this is for AS2 … if you read the top sentence, it has a link to something similar for AS2.

Sweet man… thanks alot you deserve a medal for it!! hehe.
I dunno what the ppl are crying about it works 100% perfect

Make it work in AS2? WTF! Learn AS3 already you dinosaurs! x|

Hi, very good tutorial, but I don’t know how to change the jump max height…

ok so what if we want a character who looks different when they move left or right? I find that many tutorials teaching how to make a platformer just ignore this and do the simple object thing.

Hey there, Novice AS3 coder here, and I have no problems so far, but what I am doing here is reading the code to understand why it was written that way, and its all good to my eyes except for the keyCode, I was wondering why you use what appear to be a random selection of numbers to identify keys. Are there KeyCodes for every key on the keyboard, if so how do I obtain a copy if not, please explain why you use keyCodes?

wow, one year later… and there comes my question 😛
thank you for this tutorial, finaly i am getting to undersand AS3 😛
I want to make some kind of platform game, but with video images. So the problem i have now, is that it has different images for each key. Therefor i used this:

mcMain.addEventListener(Event.ENTER_FRAME, moveChar);
function moveChar(event:Event):void {
//if certain keys are down then move the character
if (leftKeyDown) {
mcMain.x-=mainSpeed;
mcMain.scaleX=-1;
mcMain.gotoAndStop(‘run’);
}
else if (rightKeyDown) {
mcMain.x+=mainSpeed;
mcMain.scaleX=1;
mcMain.gotoAndStop(‘run’);
}
else if (upKeyDown||mainJumping) {
mainJump();
mcMain.gotoAndStop(‘jump’);
}
else {
mcMain.gotoAndStop(‘stand’);
}

}

but when i use the keys i can not use jump and run at the same time. And i can run in the air 😛 can you please help me with this problem?

tnx

For some reason my character does not land at the base of the screen after jumping, even if starting at the y=0 he seems to stop around y=5 or so. My code is identical to yours. After the first jump, the character lands roughly around y=5 and jumps from that reference and lands there after that.