47 lines
1.4 KiB
Python
47 lines
1.4 KiB
Python
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import abc
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from typing import Optional
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import pygame
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from pygame import Surface
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from sprite.PositionScale import PositionScale
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class UiElement:
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def __init__(self):
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self.position_scale = PositionScale()
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self.visible = True
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@abc.abstractmethod
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def tick(self, dt: float):
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return
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@abc.abstractmethod
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def render_sprite_image(self) -> Optional[Surface]:
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return None
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def draw(self, screen: pygame.Surface, screen_transform: PositionScale):
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if not self.visible:
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return
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image = self.render_sprite_image()
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if image is not None:
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screen_scale = screen_transform.scale
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screen_position = screen_transform.position
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object_scale = self.position_scale.scale
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object_position = self.position_scale.position
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target_position = ((object_position[0] + screen_position[0]) * screen_scale[0],
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(object_position[1] + screen_position[1]) * screen_scale[1])
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target_size = (int(screen_scale[0] * object_scale[0] * image.get_width()),
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int(screen_scale[1] * object_scale[1] * image.get_height()))
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target_image = self.get_scaled_image(image, target_size)
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screen.blit(target_image, target_position)
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def get_scaled_image(self, image, resize):
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return pygame.transform.scale(image, resize)
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