sep-pm-platformer/project/level/elements/static/ReceiverLevelElement.py

from abc import ABC

from level.elements.static.StaticLevelElement import StaticLevelElement
from physics.TickData import TickData


class ReceiverLevelElement(StaticLevelElement, ABC):
    def __init__(self, tile: dict, loaded_level, level_screen_manager: 'LevelScreenManager'):
        super().__init__(tile, loaded_level, level_screen_manager)

        self.requires = {
        }
        if 'requires_and' in tile:
            self.requires['and'] = tile['requires_and']
        if 'requires_or' in tile:
            self.requires['or'] = tile['requires_or']
        if 'requires_xor' in tile:
            self.requires['xor'] = tile['requires_xor']

        self.active_state = False

        if 'active_state' in tile:
            self.active_state_invert = tile['active_state'] == 'True'
        else:
            self.active_state_invert = False

    def set_active(self, active: bool):
        if self.active_state_invert:
            self.active_state = not active
        else:
            self.active_state = active

    def tick(self, tick_data: TickData):
        super().tick(tick_data)

        active = False

        if 'and' in self.requires:
            for requirement in self.requires['and']:
                element = self.loaded_level.get_element_by_id(requirement)
                if element and element.emitter_state:
                    active = True
                else:
                    active = False
                    break

        if 'or' in self.requires:
            for requirement in self.requires['or']:
                element = self.loaded_level.get_element_by_id(requirement)
                if element and element.emitter_state:
                    active = True
                    break

        if 'xor' in self.requires:
            for requirement in self.requires['xor']:
                element = self.loaded_level.get_element_by_id(requirement)
                if element and element.emitter_state:
                    if active:
                        active = False
                        break
                    else:
                        active = True

        if active != self.active_state:
            self.set_active(active)