Buttons

Code Sharing
1

I made this button class after seeing @Brucewe project, wanted to personalize it and also make it simpler to make the button call a function (atleast I find it simple this way). So here’s the code also added an example but what you need is only the Buttons tab.


--# Buttons
Buttons = class()

function Buttons:init(x,y,txt,funct,radius)
    self.x = x
    self.y = y
    self.txt = txt
    self.funct = funct
    self.radius = radius
end

function Buttons:draw()
    fill(140, 50, 238, 255)
    fontSize(30)
    font("AmericanTypewriter-Bold")
    text(self.txt,self.x,self.y)
    w = textSize(self.txt)
    if self.radius == nil then
        self.radius = w + 20
    end
    pushStyle()
    noFill()
    strokeWidth(5)
    stroke(0, 114, 255, 198)
    ellipse(self.x,self.y,self.radius)
end

function Buttons:touched(touch)
    tx = touch.x
    ty = touch.y
    if touch.state == BEGAN then
        if tx<=self.x + self.radius/2 and tx>=self.x - self.radius/2 and 
            ty>=self.y - self.radius/2 and ty<=self.y + self.radius/2 then
            self.funct()
        end
    end
end
--# Functions
--the functions that the button will call when pressed
function Test()
    print("button works")
end

function ChangePosition()
    print("position changed")
    sound(SOUND_HIT, 19021)
    if x == WIDTH/2 then
    x = WIDTH/2 + 200
    else
    x = WIDTH/2
    end
end
--# Main
function setup()
    x = WIDTH/2
    b2 = Buttons(WIDTH/2 - 200,HEIGHT/2,"test",ChangePosition) --radius is set on its own
end

function draw()
    background(0, 0, 0, 255)
    b1 = Buttons(x,HEIGHT/2,"test",Test,100) --radius is user defined
    b1:draw()
    b2:draw()
end

function touched(touch)
    b1:touched(touch)
    b2:touched(touch)
end
2

very nice

3

Thanks!!

4

I am glad it helped.

5

Nice. Just an advice: you redefine (create) a new button object 60 times per second. (b1). This is not a good practice. You should define it in setup, as for b2, and change just the property you want to change in draw(). This will be very important for speed if you make bigger programs and bigger classes.

6

Yeah I realized that after writing a few of such codes and have edited all of them except for on the forum. Thanks anyways!!