[Tutor] gui problem

[Kent Johnson]

Can you try that again?

Kent

On Sat, Jun 6, 2009 at 4:20 PM, Essah Mitges<e_mitges at hotmail.com> wrote:
>
> from math import sin, cos, pi import pygame displayWidth = 640displayHeight
> = 480fpsLimit = 90 def sinInterpolation(start, end, steps=30):    values =
> [start]    delta = end - start    for i in range(1, steps):        n = (pi /
> 2.0) * (i / float(steps - 1))        values.append(start + delta * sin(n))
>  return values class RotatingMenu:    def __init__(self, x, y, radius,
> arc=pi*2, defaultAngle=0, wrap=False):        """        @param x:
>  The horizontal center of this menu in pixels.                @param y:
>        The vertical center of this menu in pixels.                @param
> radius:            The radius of this menu in pixels(note that this is the
> size of            the circular path in which the elements are placed, the
> actual            size of the menu may vary depending on item sizes.
>  @param arc:            The arc in radians which the menu covers. pi*2 is a
> full circle.                @param defaultAngle:            The angle at
> which the selected item is found.                @param wrap:
>  Whether the menu should select the first item after the last one
>  or stop.        """        self.x = x        self.y = y        self.radius
> = radius        self.arc = arc        self.defaultAngle = defaultAngle
>  self.wrap = wrap                self.rotation = 0
>  self.rotationTarget = 0        self.rotationSteps = [] #Used for
> interpolation                self.items = []        self.selectedItem =
> None        self.selectedItemNumber = 0        def addItem(self, item):
>    self.items.append(item)        if len(self.items) == 1:
>  self.selectedItem = item        def selectItem(self, itemNumber):        if
> self.wrap == True:            if itemNumber> len(self.items) - 1: itemNumber
> = 0            if itemNumber < 0: itemNumber = len(self.items) - 1
>  else:            itemNumber = min(itemNumber, len(self.items) - 1)
>    itemNumber = max(itemNumber, 0)
>  self.selectedItem.deselect()        self.selectedItem =
> self.items[itemNumber]        self.selectedItem.select()
>  self.selectedItemNumber = itemNumber                self.rotationTarget = -
> self.arc * (itemNumber / float(len(self.items) - 1))
>  self.rotationSteps = sinInterpolation(self.rotation,
>                        self.rotationTarget, 45)        def rotate(self,
> angle):        """@param angle: The angle in radians by which the menu is
> rotated.        """        for i in range(len(self.items)):            item
> = self.items[i]            n = i / float(len(self.items) - 1)            rot
> = self.defaultAngle + angle + self.arc * n                        item.x =
> self.x + cos(rot) * self.radius            item.y = self.y + sin(rot) *
> self.radius        def update(self):        if len(self.rotationSteps)> 0:
>          self.rotation = self.rotationSteps.pop(0)
>  self.rotate(self.rotation)        def draw(self, display):        """@param
> display: A pyGame display object        """        for item in self.items:
>          item.draw(display) class MenuItem:    def __init__(self,
> text="Option"):        self.text = text                self.defaultColor =
> (255,255,255)        self.selectedColor = (255,0,0)        self.color =
> self.defaultColor                self.x = 0        self.y = 0 #The menu will
> edit these                self.font = pygame.font.Font(None, 20)
>  self.image = self.font.render(self.text, True, self.color)        size =
> self.font.size(self.text)        self.xOffset = size[0] / 2
>  self.yOffset = size[1] / 2        def select(self):        """Just visual
> stuff"""        self.color = self.selectedColor        self.redrawText()
>      def deselect(self):        """Just visual stuff"""        self.color =
> self.defaultColor        self.redrawText()        def redrawText(self):
>    self.font = pygame.font.Font(None, 20)        self.image =
> self.font.render(self.text, True, self.color)        size =
> self.font.size(self.text)        self.xOffset = size[0] / 2
>  self.yOffset = size[1] / 2        def draw(self, display):
>  display.blit(self.image, (self.x-self.xOffset, self.y-self.yOffset)) def
> main():    pygame.init()        display =
> pygame.display.set_mode((displayWidth, displayHeight))    clock =
> pygame.time.Clock()        menu = RotatingMenu(x=320, y=240, radius=220,
> arc=pi, defaultAngle=pi/2.0)        for i in range(4):
>  menu.addItem(MenuItem("Option" + str(i)))    menu.selectItem(0)
>  #Loop    while True:        #Handle events        events =
> pygame.event.get()        for event in events:            if event.type ==
> pygame.QUIT:                return False            if event.type ==
> pygame.KEYDOWN:                if event.key == pygame.K_LEFT:
>      menu.selectItem(menu.selectedItemNumber + 1)                if
> event.key == pygame.K_RIGHT:
>  menu.selectItem(menu.selectedItemNumber - 1)                #Update stuff
>      menu.update()                #Draw stuff        display.fill((0,0,0))
>      menu.draw(display)        pygame.display.flip() #Show the updated
> scene        clock.tick(fpsLimit) #Wait a little if __name__ ==
> "__main__":    main() I want to change this menu so I can use my own
> background in .png 800x532 and add 4 buttons 175x40 in .png one that
> initiates a .py called Guns.pyone that links you to a highscores.txt file
> thats read onlyone that links you to another .png file with the ability to
> go back to the main menuOne that terminates the window
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