Dragging an object that is floating around

Questions
1

I have several objects that are draggable. They are currently in static random positions. I would like to have them float a bit and rotate to give them some movement. When I tried to do this I used translate and my touches stopped working. Everything works fine until I try to set push and pop on the objec

2

@swiftjuan - it’s hard to say without seeing some code. Can you post just enough to show the problem?

3

@swiftjuan Here’s an example of objects floating around and rotating a little. You can also touch them to drag them around.


displayMode(FULLSCREEN)

function setup()
    count=0 -- set count
    sel=0
    rot={}  -- table for rotation
    flys={} -- table for flys
    for z=1,10 do
        table.insert(flys,vec4(math.random(WIDTH),math.random(HEIGHT),0,0))
        rot[z]=0
    end
end

function draw()
    background(40, 40, 50)
    count=count-1
    if count<=0 then    -- if 0, set to 60
        count=60    -- this is equivalent to 1 second
    end
    for a,b in pairs(flys) do
        b.x=b.x+b.z -- add speed direction to x position
        b.y=b.y+b.w -- add speed direction to y position
        if b.x>WIDTH then   -- check if off screen
            b.x=0
        end
        if b.x<0 then
            b.x=WIDTH
        end
        if b.y>HEIGHT then
            b.y=0
        end
        if b.y<0 then
            b.y=HEIGHT
        end
        
        pushMatrix()
        translate(b.x,b.y)
        rot[a]=rot[a]+math.random(-10,10)   -- rotate a random angle
        rotate(rot[a])
        sprite("Platformer Art:Battor Flap 1",0,0)
        popMatrix()
        
        if count==60 then   -- change direction every second
            b.z=math.random(-1,1)
            b.w=math.random(-1,1)
        end
    end
end

function touched(t)
    if t.state==BEGAN then
        v1=vec2(t.x,t.y)
        for a,b in pairs(flys) do
            d=v1:dist(vec2(b.x,b.y))
            if d<50 then
                sel=a
            end
        end
    end
    if t.state==MOVING and sel>0 then
        flys[sel].x=t.x
        flys[sel].y=t.y
    end
    if t.state==ENDED then
        sel=0
    end
end
4

Wow this is great thanks!