collinhover / impactplusplus

Impact++ is a collection of additions to ImpactJS with full featured physics, dynamic lighting, UI, abilities, and more.
http://collinhover.github.com/impactplusplus
MIT License
276 stars 59 forks source link

Moving a UIElement #74

Closed Mmarzex closed 11 years ago

Mmarzex commented 11 years ago

Hi,

I'm a little unclear on how you move an UIElement, so here is my code

if(ig.input.pressed('popup')){ this.someEl = ig.game.spawnEntity(ig.UITextBox, 0, 0, {posPct: {x: 0, y: 0}, text: 'Hello!!!!!'}); this.someEl.moveToPosition({x: 100, y: 100}); }

is that the proper way to do that or am I missing a concept here because no matter what it always places it in the top left corner of the game window.

collinhover commented 11 years ago

UI elements are by default positioned by a percent of screen size. Either you can set the posPct.x/y between 0 and 1, or set posAsPct to false and then set the pos.x/y like you would with normal entities. Even better, do this all in the spawn settings:

if(ig.input.pressed('popup')){
    this.someEl = ig.game.spawnEntity(ig.UITextBox, 100, 100, {
        posAsPct: false,
        text: 'Hello!!!!!'
    });
}
Mmarzex commented 11 years ago

Alright that makes sense, thanks for the quick response. All though I have one more question, if I were to add in that code to change the font would it be something like

this.someEl = ig.game.spawnEntity(ig.UITextBox, 100, 100, {
        font: _c.FONT.CHAT_NAME,
        posAsPct: false,
        text: 'Hello!!!!!'
    });

Or do I need to make a new font object? I'm using the jumpnrun demo from the repo so that font.chat_name is defined in the config-user.

collinhover commented 11 years ago

Np. Font names are just paths to the font image. For actual fonts, check out https://github.com/collinhover/impactplusplus/blob/master/lib/plusplus/core/font.js#L282.

Mmarzex commented 11 years ago

I got that, but I'm still not understanding how I would set a new font for my element? I set the font property as font: new ig.Font('media/font_04b03_black_8.png') and it still shows as the default in the textbox, am I doing something wrong still?

collinhover commented 11 years ago

Ah I see, the issue is that you're using a UITextBox, not a UIText, and the UITextBox extends UITextBubble which extends UIOverlay. The overlay creates a UIText using the textSettings property. So what you need is:

if(ig.input.pressed('popup')){
    this.someEl = ig.game.spawnEntity(ig.UITextBox, 100, 100, {
        posAsPct: false,
        text: 'Hello!!!!!',
        textSettings: {
            font: ig.Font.FONTS.CHAT
        }
    });
}