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import pygame
from .static import INTERNAL_WIDTH, INTERNAL_HEIGHT
class Scaling():
factor = 0.02
left = 0
top = 0
borders = (pygame.Rect(0,0,0,0), pygame.Rect(0,0,0,0))
active = pygame.Rect(0,0,0,0)
@staticmethod
def area_to_rect(area: tuple) -> pygame.Rect:
""" converts area coordinates to pygame.Rect"""
return pygame.Rect(
area[0] * __class__.factor + __class__.left,
area[1] * __class__.factor + __class__.top,
area[2] * __class__.factor,
area[3] * __class__.factor)
@staticmethod
def scale_to_display(coords: tuple ) -> tuple:
""" Converts internal coordinates to display coodinates """
return (
coords[0] * __class__.factor + __class__.left,
coords[1] * __class__.factor + __class__.top)
@staticmethod
def scale_to_internal(coords: tuple ) -> tuple:
""" Converts display coordinates to internal coodinates """
x = coords[0] - __class__.left
x = max(x, 0) // __class__.factor
x = min(x, INTERNAL_WIDTH - 1)
y = coords[1] - __class__.top
y = max(y, 0) // __class__.factor
y = min(y, INTERNAL_HEIGHT - 1)
return (x, y)
@staticmethod
def update_scaling(size: tuple) -> None:
if size[0] / size[1] <= INTERNAL_WIDTH / INTERNAL_HEIGHT:
__class__.factor = size[0] / INTERNAL_WIDTH
__class__.left = 0
__class__.top = (size[1] - INTERNAL_HEIGHT * __class__.factor) // 2
__class__.border = (
pygame.Rect(
0,
0,
size[0],
__class__.top),
pygame.Rect(
0,
size[1] - __class__.top,
size[0],
__class__.top),
)
else:
__class__.factor = size[1] / INTERNAL_HEIGHT
__class__.left = (size[0] - INTERNAL_WIDTH * __class__.factor) // 2
__class__.top = 0
__class__.border = (
pygame.Rect(
0,
0,
__class__.left,
size[1]),
pygame.Rect(
size[0] - __class__.left,
0,
__class__.left,
size[1]),
)
__class__.active = pygame.Rect(
__class__.left,
__class__.top,
INTERNAL_WIDTH * __class__.factor,
INTERNAL_HEIGHT * __class__.factor)
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