from math import sin, cos, pi
import pygame
displayWidth = 640
displayHeight = 480
fpsLimit = 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()Could anyone show me how to add my own image as a background 800x532 png
4 buttons 167x40
one button linking to warrior.py
one button linking to a png with a back option
one button ling to a text file readonly called hello.txt
one button closing the window
I'm making a game for a buddy who's dad just died and all i need is this menu he a good guy