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# slider.py
"""
Copyright (C) 2010 Peter Hewitt
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
"""
import copy
import pygame
import utils
import g
class Slider: # sets g.level 1..steps
def __init__(self, cx, cy, steps, colour=utils.BLACK):
self.easy = utils.load_image('slow.png', True)
self.hard = utils.load_image('fast.png', True)
self.xo = utils.load_image('xo.png', True)
iw = self.hard.get_width()
ih = self.hard.get_height()
w = g.sy(16)
w2 = w / 2
h2 = ih / 2
self.x1 = cx - w2
self.y = cy - h2
self.x2 = cx + w2 - iw
x = cx - w2 + iw * 1.2
w = w - 2 * iw * 1.2
h = g.sy(.12)
y = cy + g.sy(.34)
self.rect = pygame.Rect(x, y, w, h)
mh = g.sy(1)
self.mark = pygame.Rect(x, y - mh / 2 + h / 2, h, mh)
self.steps = steps
self.dx = w / (steps - 1)
self.colour = colour
self.cx = cx
self.cy = cy
marks = []
x = self.rect.left
click_rects = []
dx = self.dx
for i in range(self.steps):
rect = copy.copy(self.mark)
rect.left = x - 5
rect.width = 10
marks.append(rect)
click_rect = pygame.Rect(
x - dx / 2, self.mark.top, dx, self.mark.h)
click_rects.append(click_rect)
x += dx
self.marks = marks
self.click_rects = click_rects
def draw(self):
g.screen.blit(self.easy, (self.x1, self.y))
g.screen.blit(self.hard, (self.x2, self.y))
pygame.draw.rect(g.screen, self.colour, self.rect) # horizontal line
x = self.rect.left # now draw marks
for i in range(self.steps):
self.mark.left = x
pygame.draw.rect(g.screen, self.colour, self.mark)
if i == (g.level - 1):
dx = self.xo.get_width() / 2
dy = self.xo.get_height() / 2
g.screen.blit(
self.xo, (x - dx + self.mark.w / 2, self.cy - dy))
x += self.dx
def mouse(self):
mx, my = g.pos
rect = self.easy.get_rect(topleft=(self.x1, self.y))
if rect.collidepoint(mx, my):
if g.level > 1:
g.level -= 1
return True
rect = self.hard.get_rect(topleft=(self.x2, self.y))
if rect.collidepoint(mx, my):
if g.level < self.steps:
g.level += 1
return True
n = 1
for rect in self.click_rects:
if rect.collidepoint(mx, my):
if g.level == n:
return False
else:
g.level = n
return True
n += 1
return False
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