gap.py

"""
MIT License

Copyright (c) 2022 Giovanni Zito

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
"""

import random
import game
import pygame
import game_objects
from globals import *


# spawn new gap
def spawn_gap(x, y, speed, floor_idx, grp):
    gap = Gap(x, y, floor_idx)
    gap.speed = speed
    gap.floor_idx = floor_idx
    grp.add(gap)
    game.Game.instance().gap_list.append(gap)
    return gap


# spawn new gap at random location
def spawn_random_gap(grp):
    if len(game.Game.instance().gap_list) < MAX_GAPS:
        x = random.randint(round(SCALED_SCREEN_OFFSET_X), round(SCALED_RIGHT_BORDER_X))
        floor_idx = random.randint(0, 7)
        y = game.Game.instance().floor_list[floor_idx].rect.y
        gap_dir = random.randint(0, 1)
        speed = SCALED_GAP_SPEED if gap_dir == 0 else -SCALED_GAP_SPEED
        spawn_gap(x, y, speed, floor_idx, grp)


class Gap(game_objects.ZSprite):
    # static member
    color_dict_ = {}

    def __init__(self, x, y, floor_idx):
        super().__init__()

        if BACKGROUND_COLOR not in Gap.color_dict_:
            surface = pygame.surface.Surface((SCALED_GAP_WIDTH, SCALED_FLOOR_THICKNESS))
            surface.fill(BACKGROUND_COLOR)
            Gap.color_dict_[BACKGROUND_COLOR] = surface

        if FLASH_COLOR_FLOOR_HIT not in Gap.color_dict_:
            surface = pygame.surface.Surface((SCALED_GAP_WIDTH, SCALED_FLOOR_THICKNESS))
            surface.fill(FLASH_COLOR_FLOOR_HIT)
            Gap.color_dict_[FLASH_COLOR_FLOOR_HIT] = surface

        if FLASH_COLOR_HAZARD_HIT not in Gap.color_dict_:
            surface = pygame.surface.Surface((SCALED_GAP_WIDTH, SCALED_FLOOR_THICKNESS))
            surface.fill(FLASH_COLOR_HAZARD_HIT)
            Gap.color_dict_[FLASH_COLOR_HAZARD_HIT] = surface

        self.current_surface = Gap.color_dict_[BACKGROUND_COLOR]
        self.surface_switched = False

        self.image = Gap.color_dict_[BACKGROUND_COLOR]
        self.rect = pygame.rect.Rect(x, y, SCALED_GAP_WIDTH, SCALED_FLOOR_THICKNESS)
        self.speed = 0.0
        self.floor_idx = int(floor_idx)

        self.set_position(x, y)

    def update(self, *args, **kwargs):
        self.set_x(self.x + self.speed)
        if self.x >= SCALED_RIGHT_BORDER_X or self.x <= -SCALED_GAP_WIDTH + SCALED_SCREEN_OFFSET_X:
            self.wrap()

        if self.surface_switched:
            self.image = self.current_surface
            self.surface_switched = False

        super().update(*args, **kwargs)

    def wrap(self):
        if self.x >= SCALED_RIGHT_BORDER_X:
            self.x = SCALED_SCREEN_OFFSET_X
            self.floor_idx += 1
            if self.floor_idx >= len(game.Game.instance().floor_list):
                self.floor_idx = 0
        elif self.x <= -SCALED_GAP_WIDTH + SCALED_SCREEN_OFFSET_X:
            self.x = SCALED_RIGHT_BORDER_X
            self.floor_idx -= 1
            if self.floor_idx < 0:
                self.floor_idx = 7
        self.y = game.Game.instance().floor_list[self.floor_idx].rect.y

    def switch_surface(self, color):
        self.current_surface = Gap.color_dict_[color]
        self.surface_switched = True