Having troubles with my button

[Canibalistic Cow]

What is it you are trying to achieve?
Make clickable button (make the button with the drawfilloval command)


What is the problem you are having?
half the button is clickable the other half isnt


Describe what you have tried to solve this problem
I went to all threads i have seen on this site, i have gotten the code for this button from http://compsci.ca/v3/viewtopic.php?t=3583&postdays=0&postorder=asc&start=15 (buttons for dummies)


Post any relevant code (You may choose to attach the file instead of posting the code if it is too long)

Turing:

var mx, my, mb : int var r := 60 loop     mousewhere (mx, my, mb)     if mb = 0 then         drawfilloval (60, 60, r, r, blue)     end if     if mb = 1 and mx ** 2 + mb ** 2 <= r ** 2 then         drawfilloval (60, 60, r, r, red)     end if end loop

Please specify what version of Turing you are using
4.1.1


So if anyone can help me with my button problem it sure would be helpful. I have looked through a lot of topics and i just cant seem to find out the answer.

[TerranceN]

You are calculating distance wrong, the formula is:

code:

Distance = sqrt((x1 - x2)**2 + (y1 - y2)**2)

Therefore in your code

x1 = mx
x2 = 60

y1 = my
y2 = 60

Or you could use Math.Distance(x1, y1, x2, y2)

Hope that helps

[Canibalistic Cow]

Sorry but that isnt to helpful since i took the button to begin with i dont have any clue about the formula. :S thanks for trying to help though, anyone have another way they can maybe try to explain it or something. I am not that good at turing.

[TheGuardian001]

Well, if the distance between the mouse (x1,y1) and the buttons center (x2,y2), which can be calculated with

TerranceN wrote:

code:

Distance = sqrt((x1 - x2)**2 + (y1 - y2)**2)

is less than the radius, then the mouse is over the button.

[Canibalistic Cow]

Not quite sure what you guys ment but still they did help me find out my problem. i changed the code around a bit and this works:

Turing:

var mx, my, mb : int var r := 60 loop     mousewhere (mx, my, mb)     if mb = 0 then         drawfilloval (60, 60, r, r, blue)     end if     if mb = 1 and mx ** 1.70 + mb ** 2 <= r ** 2 then         drawfilloval (60, 60, r, r, red)     end if end loop

is that right? like for what you guys were trying to tell me??

[TerranceN]

No, thats not what I was trying to tell you.

Since this button is a circle we can tell if the mouse is over it or not by comparing the radius of the button, to the distance between the middle of the button and the mouse position. The radius is just the distance from the middle to the edge of the circle. Therefore if the distance from the middle of the button to the mouse is less than or equal to the radius, the mouse is over the button.

If you are still unsure, look at richcash's Collision Detection Tutorial specifically the part about circle collision detection, just treat the mouse position as a circle with a radius of 0.