Javascript Help Thread

Help
#1

What Wick Editor Version are you using?
1.9

Describe the Problem
Im getting errors while writing this.
var pp = arrowX + 20 ;

What have you tried so far?
Google and javascript guides.

#2

btw pp is the name of the variable. dont ask why lol.

#3

maybe you declared pp as var before or maybe arrowX is not defined

#4

Could you please post your project to help you better?

#5

If you haven’t defined “arrowX”, its a syntax error. A arrow X position? Instead of

arrowX

Use

arrow.x

If this doesn’t help, well I don’t have a solution.

1 Like
#6

you may need to use [clip].pp depending on the situation. [clip] is the name of the clip that owns pp, it might be “this”. same goes for arrowX. if you got confused thinking that mouseX = mouse.x, etc, mouseX is its own variable that gets the mouse’s x value. unless there is a variable called arrowX, you need to use arrow.x.

#7

arrowX and pp1-1-2021_2-36-40PM.wick (1.9 KB)
Does this help?

#8

There’s nothing wrong with the syntax of that line, so it’s not a syntax error. Probably arrowX is not defined. That would result in a ReferenceError. This could be because you wrote arrowX = 3 in a different script and tried using it. If that is the case, instead you should write this.arrowX = 3 and replace that line with var pp = this.arrowX + 20; (the number of spaces before the semicolon doesn’t matter). Or arrow could be an object with two properties x and y representing a point in space, and if that is the case you should write arrow.x.

If there is still a problem you should give us the rest of the code so we can know more about what is going on.

#9

im pretty sure it is arrowX. I think i need to replace it with arrow.X

#10

I have no idea if anyone will see this post, but i need yet another favor.
I want to put multiple items on this hit detection. Putting a comma on it dose not work. If anyone knows how to do this please send help my way!

I want both block1 and block2 to be added to the this.hits

if (this.hits(block1,block2))

#11

Here’s how to do it:

if(this.hitTest(block1) && this.hitTest(block2) ){
// Put some code here
}

The “&&” is like an “and,” replacing it with “||” will make it an “or” statement.
Let me know if this is what you needed

#12

it dosenot seem to be working… i dont know why.

#13

This is my simple gravity script. it is kinda trash but it works and i came up with it in like 20 seconds so yeah.

basicaly the blocks are just rectangle clips named block1 and block2.
i want it so that when it collides it dose not go down. but when it is not touching them it falls down on the y axis.

here is what i wrote
if(this.hitTest(block1)) {
this.y = this.y;
} else {
this.y += 5;
}

#14

hmmm… try this:

if(!this.hitTest(block1)&& !this.hitTest(block2)) {
this.y+= 5;
}

This checks if block one and two isn’t hit by the object, and if it returns true, the object falls down

1 Like
#15

thank you. i never approached it like this. im still very new at javascript. there is not a lot of documentation on javascript for wick. if you look up anything it seems always to be with web development.

2 Likes
#17

well that’s because javascript is the web development language

1 Like
#18

I think this works…:

if (this.hits(block1) {
if (this.hits(block2) {
// Code
}
}

What it’s supposed to do it’s that if it hits block1, it checks if it’s also hitting block2, if it is, then it does something.

Edit: Also, if you want more than 2, you could make this:

if (this.hits(block1) {
if (this.hits(block2) {
if (this.hits(block3) {
if (this.hits(block4) {
// Code
}
}
}
}

#19

do you know how to make it so that when i press w, it makes you go up 10 pixels up.
right now i cant do that. i wrote it so that it goes ahead and when you hold down w, it goes up 10 px. but you can infinity go up. how can i make it a sooth animation that only goes up a certain amount?

#20

Nevermind.

#21

yes. i dont know any other way to do it