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# buttons.py
import g,utils,pygame
class Button:
_instances=[]
def __init__(self,name,(x1,y1),centre=True): # eg ('plus',(30,40))
self._instances.append(self)
up=utils.load_image(name+"_up.png",True)
down=utils.load_image(name+"_down.png",True)
w=up.get_width();h=up.get_height();x=x1;y=y1
if centre:
self.cx=x; self.cy=y
x=x-w/2; y=y-h/2
else:
self.cx=x+w/2; self.cy=y+h/2
self.rect=pygame.Rect(x,y,w,h)
self.name=name; self.x=x; self.y=y; self.active=True
self.up=up; self.down=down; self.stay_down=False
def mouse_on(self):
mx,my=g.pos
return self.rect.collidepoint(mx,my)
def draw_up(self):
g.screen.blit(self.up,(self.x,self.y))
def draw_down(self):
g.screen.blit(self.down,(self.x,self.y))
def on(self):
self.active=True
def off(self):
self.active=False
def draw():
for b in Button._instances:
if b.active:
if b.stay_down:
b.draw_down()
else:
b.draw_up()
def check():
clear()
for b in Button._instances:
if b.active:
if b.mouse_on():
if b.name in ('xyz1','xyz2'):
b.stay_down=True
else:
b.draw_down()
g.screen.blit(g.pointer,g.pos)
pygame.display.flip()
pygame.time.wait(300)
return b.name #****
return '' # no button pressed
def clear():
for b in Button._instances: b.stay_down=False
def active(name):
for b in Button._instances:
if b.name==name: return b.active #****
return False # not found
def stay_down(name):
for b in Button._instances:
if b.name==name: b.stay_down=True; return #****
return
def mouse_on(name):
mx,my=g.pos
for b in Button._instances:
if b.name==name:
return b.rect.collidepoint(mx,my)
return False
def set_mouse(name):
p2=g.pointer.get_height()/2
for b in Button._instances:
if b.name==name:
x=b.cx; y=b.cy+p2
pygame.mouse.set_pos(x,y); g.pos=(x,y)
# eg1 buttons.on('plus')
# eg2 buttons.on(['plus','times'])
def on(name):
if type(name)==type('a'):
list1=[]; list1.append(name)
else:
list1=name
for b in Button._instances:
if b.name in list1: b.active=True
# eg1 buttons.off('plus')
# eg2 buttons.off(['plus','times'])
def off(name):
if type(name)==type('a'):
list1=[]; list1.append(name)
else:
list1=name
for b in Button._instances:
if b.name in list1: b.active=False
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