[visionegg] Re: pygame.mouse.get_pos()
- From: "Maher, Jeffrey" <jeffrey.maher@xxxxxxxxxxxxx>
- To: <visionegg@xxxxxxxxxxxxx>
- Date: Wed, 11 Jul 2007 13:53:52 -0500
Sorry call me ignorant, but I dont know how to make that conversion. I've
identified the problem as these lines
target.parameters.position = mouse_position
pos.parameters.text = "Position: "+str(pygame.mouse.get_pos())
And I know that its getting its data from the unconverted coordinates. How do I
switch it over?
Also I tried the coding for the "e" key to no avail. Heres a copy of the code
that I'm working off of:
quit_now = False
frame_timer = FrameTimer()
while not quit_now:
for event in pygame.event.get():
if event.type == pygame.locals.KEYDOWN:
if event.key == pygame.locals.K_ESCAPE:
txt0.parameters.on = not txt0.parameters.on
This works just fine, but when I tried K_e it will just shut down.
I'm sure I'm making some simple error on my part, but to be honest, this is
beyond me.
Thanks for the help.
-Jeff
________________________________
From: visionegg-bounce@xxxxxxxxxxxxx on behalf of adam naples
Sent: Wed 7/11/2007 1:08 PM
To: visionegg@xxxxxxxxxxxxx
Subject: [visionegg] Re: pygame.mouse.get_pos()
it sounds like the problem is in the position readout, not the mouse code, I
would just make the conversion there. When you convert the mouse coordinate all
you are doing is making your life easier for dealing with the openGL
coordinates for detecting the mouse position etc.
with regards to the keys and functions you'll want something like this
inside the keydown event
def keydown(event):
if event.key==K_e :
doMyFunction()
if the very first thing in the keydown function is something like
if anyKeyIsDown:
quit
then you'll never execute any other code in the function.
-a
On Jul 11, 2007, at 10:55 AM, Maher, Jeffrey wrote:
Correct, my apologies, I did mean bottom left.
What I'm confused about, is that on the screen, as I move my mouse
around, the y values of the Position readout still starts from (0,0) in the
upper left hand corner. The bottom left reads a value of (0,600), so basically
the mathematical way of converting this to what I want would be the -y + 600
(so that that the bottom of the display reads a value of zero, and the top
reads a value of 600). I would like the position readout to display the OpenGL
coordinates as opposed to the pygame.mouse version.
I'm not having a problem with the positioning of text on the screen, in
fact I would like the position readout to reflect the manner in which text is
placed, so that I can go back for later reference to the specific location.
Perhaps there's a problem with the conversion to OpenGL coordinates
then?
Also, I know this is mildly off subject, but you wouldn't happen to
know how to assign a key on the keyboard to a function such as quitting or
alternating background color? Any key that I press other than space, esc, home,
end, and the arrows, closes out the program. I've managed to get the processes
I want to happen occur with these keys, but not with any other. I know the
coding for these functions are good, just not how to assign say the "plus" sign
as a recognized key.
-Jeff
________________________________
From: visionegg-bounce@xxxxxxxxxxxxx on behalf of adam naples
Sent: Wed 7/11/2007 12:26 PM
To: visionegg@xxxxxxxxxxxxx
Subject: [visionegg] Re: pygame.mouse.get_pos()
bottom right?
I think you might mean bottom left?
either way, it depends on what you want to do.
the line
y = screen.size[1]-y # convert to OpenGL coords
is taking the vertical position of the mouse on the screen and flipping
the coordinates, remember opengl coordinates start in the bottom left, not the
upper left.
Are you trying to change the way objects are placed on the screen?
I have a big pile of code for doing things that sounds like they are
related to this, but I'm not sure what you want to do.
hope I can help
-a
On Jul 10, 2007, at 12:30 PM, Maher, Jeffrey wrote:
Hello all,
As I have been going through the programming, I have run into a major
stumbling block when it comes to pygame.mouse.get_pos().
According to the description , pygame.mouse.get_pos() takes the
coordinate mapping system from the upper left hand corner of the display. Is
there anyway to make this map out the coordinates from the bottom right hand
corner, so that standard x-y coordinates can be applied (such as in the
positioning of text)?
For reference here's how the program reads:
just_current_pos = mouse_position
(x,y) = pygame.mouse.get_pos()
y = screen.size[1]-y # convert to OpenGL coords
mouse_position = (x,y)
if just_current_pos != mouse_position:
last_mouse_position = just_current_pos
My attempts at changing the coordinates mathematically (y= -y +600)
have failed, either by having the display outside of the viewing screen, or my
personal favorite, inverting the mouse all-together. I've tried manipulating
the y= line as well as the mouse_position line, all to no avail.
Any help or suggestions would be greatly appreciated.
Thanks,
Jeff
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