Plz help with multitouches

Questions
1

Hey, i don’t understand how to use multitouches properly, ive looked at the examples and searched the forum but im even more confused now.

Heres an example:
I’m trying to make two squares, when touched, follow the individual touch and change color, then change back when the touch ends.

Not sure if this is how to paste my code but here goes

function setup()
    
    touches = {}
    b = vec2(100,100) --blue rect x,y
    bcolor = color(0, 0, 100)
    r = vec2(500,100) --red rect x,y
    rcolor = color(100, 0, 0)
end

function draw()
    
    for i,touch in pairs(touches) do
        
        if touch.x > b.x - 100 and touch.x < b.x + 100 and
           touch.y > b.y - 100 and touch.y < b.y + 100 then
            b.x = touch.x
            b.y = touch.y
            bcolor = color(0, 0, 255)
        else
            bcolor = color(0, 0, 100)
        end
        
        if touch.x > r.x - 100 and touch.x < r.x + 100 and
           touch.y > r.y - 100 and touch.y < r.y + 100 then
            r.x = touch.x
            r.y = touch.y
            rcolor = color(255, 0, 0)
        else
            rcolor = color(100, 0, 0)
        end
    end

    background()
    rectMode(CENTER)
    fill(bcolor)
    rect(b.x,b.y,200,200)
    fill(rcolor)
    rect(r.x,r.y,200,200)
end

function touched(touch)
    
    if touch.state == ENDED then
        touches[touch.id] = nil
    else
        touches[touch.id] = touch
    end
end
2

@JeffTheNoob Is this what you wanted. As for posting code, put 3 tildes before and after the code. You don’t need them before and after each function.


function setup()
    touches = {}
    b = vec2(100,100) --blue rect x,y
    bcolor = color(0, 0, 100)
    r = vec2(500,100) --red rect x,y
    rcolor = color(100, 0, 0)
end

function draw()
    background()
    rectMode(CENTER)
    fill(bcolor)
    rect(b.x,b.y,200,200)
    fill(rcolor)
    rect(r.x,r.y,200,200)
    bcolor = color(0, 0, 100)
    rcolor = color(100, 0, 0)
    for i,touch in pairs(touches) do   
        if touch.x > b.x - 100 and touch.x < b.x + 100 and
           touch.y > b.y - 100 and touch.y < b.y + 100 then
            b.x = touch.x
            b.y = touch.y
            bcolor = color(0, 0, 255)
        end    
        if touch.x > r.x - 100 and touch.x < r.x + 100 and
           touch.y > r.y - 100 and touch.y < r.y + 100 then
            r.x = touch.x
            r.y = touch.y
            rcolor = color(255, 0, 0)
        end
   end
end

function touched(touch)
    if touch.state == ENDED then
        touches[touch.id] = nil
    else
        touches[touch.id] = touch
    end
end
3

Yeah thats what i was after, thanks!