This post goes over how to create a timed slider minigame in Ren’Py.
Class
Create the Python class for the slider:
init python:
class Slider:
WIDTH = 100
WIDTH_MAX = 1000
PADDING = 10
def start(self, speed, jump_win, jump_lose):
self.xsize = self.WIDTH
self.xsize_max = self.WIDTH_MAX
self.xpos_target = renpy.random.randint(0, self.WIDTH_MAX - self.WIDTH - self.PADDING)
self.speed = speed
self.xpos_current = 0
self.direction = 1
self.jump_win = jump_win
self.jump_lose = jump_lose
renpy.jump("slider")
def update(self):
if self.xpos_current <= 0:
self.direction = 1
elif self.xpos_current + self.xsize >= self.xsize_max - self.PADDING:
self.direction = -1
self.xpos_current += self.speed * self.direction
def stop(self):
xpos_current = self.xpos_current
xpos_target = self.xpos_target
xsize = self.xsize
has_collided = (
# left intersection
(xpos_current >= xpos_target and xpos_current <= xpos_target + xsize) or
# right intersection
(xpos_current + xsize >= xpos_target and xpos_current + xsize <= xpos_target + xsize)
)
if has_collided:
renpy.jump(self.jump_win)
else:
renpy.jump(self.jump_lose)
And initialize it:
default slider = Slider()
Optional: If you want the target to be at the center:
-self.xpos_target = renpy.random.randint(0, self.WIDTH_MAX - self.WIDTH - self.PADDING)
+self.xpos_target = (self.WIDTH_MAX - self.WIDTH - self.PADDING) // 2
Screen
Create the screen for the slider:
screen slider():
timer 0.001:
repeat True
action Function(slider.update)
button:
action Function(slider.stop)
xalign 0.5
yalign 0.5
frame:
background "#00000099"
xsize slider.xsize_max
ysize 50
bar:
right_bar Solid((255, 255, 255, 100))
xsize slider.xsize
xpos slider.xpos_target
bar:
value 1
xsize slider.xsize
xpos slider.xpos_current
textbutton "Stop":
action Function(slider.stop)
xalign 0.5
yalign 0.65
Label
Create a label that calls the slider screen:
label slider:
call screen slider
Usage
Start the slider minigame:
# game/script.rpy
label start:
$ slider.start(speed=10, jump_win="win_label", jump_lose="lose_label")
Script
See the full script slider.rpy:
# game/slider.rpy
default slider = Slider()
init python:
class Slider:
WIDTH = 100
WIDTH_MAX = 1000
PADDING = 10
def start(self, speed, jump_win, jump_lose):
self.xsize = self.WIDTH
self.xsize_max = self.WIDTH_MAX
self.xpos_target = renpy.random.randint(0, self.WIDTH_MAX - self.WIDTH - self.PADDING)
self.speed = speed
self.xpos_current = 0
self.direction = 1
self.jump_win = jump_win
self.jump_lose = jump_lose
renpy.jump("slider")
def update(self):
if self.xpos_current <= 0:
self.direction = 1
elif self.xpos_current + self.xsize >= self.xsize_max - self.PADDING:
self.direction = -1
self.xpos_current += self.speed * self.direction
def stop(self):
xpos_current = self.xpos_current
xpos_target = self.xpos_target
xsize = self.xsize
has_collided = (
# left intersection
(xpos_current >= xpos_target and xpos_current <= xpos_target + xsize) or
# right intersection
(xpos_current + xsize >= xpos_target and xpos_current + xsize <= xpos_target + xsize)
)
if has_collided:
renpy.jump(self.jump_win)
else:
renpy.jump(self.jump_lose)
screen slider():
timer 0.001:
repeat True
action Function(slider.update)
button:
action Function(slider.stop)
xalign 0.5
yalign 0.5
frame:
background "#00000099"
xsize slider.xsize_max
ysize 50
bar:
right_bar Solid((255, 255, 255, 100))
xsize slider.xsize
xpos slider.xpos_target
bar:
value 1
xsize slider.xsize
xpos slider.xpos_current
textbutton "Stop":
action Function(slider.stop)
xalign 0.5
yalign 0.65
label slider:
call screen slider