sep-pm-platformer/project/physics/sprites/PlayerSprite.py

from level.elements.dynamic.PushableBoxLevelElement import PushableBoxLevelElement
from physics.CollisionDirection import CollisionDirection
from physics.TickData import TickData
from sprite.DynamicSprite import DynamicSprite
from sprite.Spritesheet import Spritesheet
from ui_elements.KeyManager import KeyManager


class PlayerSprite(DynamicSprite):
    def __init__(self, spritesheet: Spritesheet):
        super().__init__(spritesheet)

        self.jump_time = -1
        self.allowed_jump_time = 12

        self.acceleration_horizontal = 2

        self.deceleration_horizontal_air = 0.2
        self.deceleration_horizontal_ground = 0.4
        self.gravity = 9.81 / 11

        self.max_motion_horizontal_via_input = 5
        self.id = 'player'

        # animation properties
        self.no_motion_since = 100
        self.last_directional_input = KeyManager.KEY_RIGHT

        self.is_potentially_stuck = 0

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

        left = self.get_collides_with_direction(CollisionDirection.LEFT)
        right = self.get_collides_with_direction(CollisionDirection.RIGHT)
        bottom = self.get_collides_with_direction(CollisionDirection.BOTTOM)

        if self.is_potentially_stuck == 0 and left and bottom:
            if left.secondary_sprite == bottom.secondary_sprite:
                if isinstance(left.secondary_sprite, PushableBoxLevelElement):
                    self.is_potentially_stuck = 1
                else:
                    self.is_potentially_stuck = 0
            else:
                self.is_potentially_stuck = 0
        elif self.is_potentially_stuck == 1 and right and bottom:
            if right.secondary_sprite == bottom.secondary_sprite:
                if isinstance(right.secondary_sprite, PushableBoxLevelElement):
                    self.is_potentially_stuck = 2
                else:
                    self.is_potentially_stuck = 0
            else:
                self.is_potentially_stuck = 0

        if self.is_potentially_stuck == 2:
            self.position_scale.position = (self.position_scale.position[0] - 5, self.position_scale.position[1])
            self.is_potentially_stuck = 0

        if tick_data.key_manager.is_keymap_down(KeyManager.KEY_RIGHT):
            self.last_directional_input = KeyManager.KEY_RIGHT
            if self.motion[0] < self.max_motion_horizontal_via_input:
                self.motion = (self.motion[0] + self.acceleration_horizontal, self.motion[1])

        if tick_data.key_manager.is_keymap_down(KeyManager.KEY_LEFT):
            self.last_directional_input = KeyManager.KEY_LEFT
            if self.motion[0] > -self.max_motion_horizontal_via_input:
                self.motion = (self.motion[0] - self.acceleration_horizontal, self.motion[1])

        if tick_data.key_manager.is_keymap_down(KeyManager.KEY_UP):
            if self.jump_time < 0 and self.get_collides_with_direction(CollisionDirection.BOTTOM):
                self.jump_time = self.allowed_jump_time
                self.motion = (self.motion[0], self.motion[1] - 7)
            if self.jump_time >= 0:
                self.motion = (self.motion[0], self.motion[1] - 0.65)
        if self.jump_time >= 0:
            self.jump_time -= 1


        # update animation state
        if self.last_directional_input == KeyManager.KEY_RIGHT:
            animation_dir = 'r'
        else:
            animation_dir = 'l'

        if abs(self.motion[0]) < 0.1:
            self.no_motion_since += tick_data.dt
        else:
            self.no_motion_since = 0

        if self.no_motion_since > 20:
            self.set_animation_state('idle_' + animation_dir)
        else:
            self.set_animation_state('walk_' + animation_dir)