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...in a dream...
Join Date: Jul 2005
Posts: 4,957
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To determine whether the cursor is over anything, maybe make a class (classes supported in Lua?) with common functions and variables (Draw, X, Y, Width, Height, ID (or name if you like), backColor, foreColor, onPress() as function, onIdle(hovering as boolean) as function and colliding(x,y,width,heigh t) as function). This should get inherited by more specific shell objects.
For buttons, it'd inherit that class and have it contain things that buttons only make use of. For checkboxes, it'd inherit that class and add things like checked (as boolean, for when onPress() is ran, swaps this flag), groupBoxID (if the check box is in a group box whether to effect other check boxes, or are those radio buttons?), etc. You can use VB.net tools for a means of obtaining member names and usages (better then forgetting about something then having to redo some part of your code  )
Code:
NUM_SHELL_OBJECTS = 4
START_BUTTON_ID = 1
EXIT_BUTTON_ID = 2
WELCOME_LABEL_ID = 3
ACCEPT_CHECKBOX_ID = 4
-- etc.
pressing = { cross = false }
baseClass = { X, Y, Width, Height, ID, backColor, foreColor, onPress(), onIdle(bool), colliding(x,y,width,height) } -- not sure if this is the correct way to make a lua class, so...
startButton = { baseClass } -- I dunno what else a button needs :P
exitButton = { baseClass } -- above ^^
welcomeLabel = { baseClass } -- I dunno what labels need specifically ;)
acceptDialog = { baseClass, checked, parentID } -- checked for if it's checked, parentID for the groupbox ID parent if any
shellObject = { startButton, exitButton, welcomeLabel, acceptDialog } -- each of these are classes that have inherit a base class with teh common stuff as well as the more use-specific stuff
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while true do
screen:clear()
-- draw background or w/e, anything non-shellobject related
for i = 0, NUM_SHELL_OBJECTS
if pad:cross() and not pressing.cross then
pressing.cross = true
if shellObject[i].colliding (CursorX, CursorY, 1, 1) then -- 1,1 = width/height of collision area for cursor, preferably the top left part of hte cursor if it's like the windows mouse
shellObject[i].onPress() -- mouse is over the current shell object + cross is pressed, so...
end
else
pressing.cross = false
if shellObject[i].colliding (CursorX, CursorY, 1, 1) then
shellObject[i].onIdle(true) -- true = mouse is hovering over the object, not pressed yet, useful for a status bar for seeing what an object does before pressing
else
shellObject[i].onIdle(false) -- mouse isn't over the object and not pressing it (duh)
end
end
shellObject[i].Draw()
end
screen.waitVblankStart()
screen.flip()
end
I'd write your base class and a few other things if I knew how to in Lua (define an inherited class mainly). I guess I could just add the baseclass as a class within a class, only difference would be .baseClass before accessing any members in it.
Not sure if this is the best way, but it offers a lot of control and pretty easily upgradeable.
If yaustar or some other higher-ups (?) bother to look in here, they may be able to offer a better design for ya.
Last edited by SG57; 02-16-2008 at 01:30 PM..
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. Although I scored a 23 on a practice ACT. I've taught myself to program all from online tutrials and forums. I started out with python, so lua isn't all that much different.
