48 lines
1.5 KiB
Python
48 lines
1.5 KiB
Python
class Settings():
|
|
"""A class to store all settings for Alien Invasion."""
|
|
|
|
def __init__(self):
|
|
"""Initialize the game's static settings."""
|
|
# Screen settings.
|
|
self.screen_width = 1200
|
|
self.screen_height = 800
|
|
self.bg_color = (230, 230, 230)
|
|
|
|
# Ship settings.
|
|
self.ship_limit = 3
|
|
|
|
# Bullet settings.
|
|
self.bullet_width = 3
|
|
self.bullet_height = 15
|
|
self.bullet_color = 60, 60, 60
|
|
self.bullets_allowed = 3
|
|
|
|
# Alien settings.
|
|
self.fleet_drop_speed = 10
|
|
|
|
# How quickly the game speeds up.
|
|
self.speedup_scale = 1.1
|
|
# How quickly the alien point values increase.
|
|
self.score_scale = 1.5
|
|
|
|
self.initialize_dynamic_settings()
|
|
|
|
def initialize_dynamic_settings(self):
|
|
"""Initialize settings that change throughout the game."""
|
|
self.ship_speed_factor = 1.5
|
|
self.bullet_speed_factor = 3
|
|
self.alien_speed_factor = 1
|
|
|
|
# Scoring.
|
|
self.alien_points = 50
|
|
|
|
# fleet_direction of 1 represents right, -1 represents left.
|
|
self.fleet_direction = 1
|
|
|
|
def increase_speed(self):
|
|
"""Increase speed settings and alien point values."""
|
|
self.ship_speed_factor *= self.speedup_scale
|
|
self.bullet_speed_factor *= self.speedup_scale
|
|
self.alien_speed_factor *= self.speedup_scale
|
|
|
|
self.alien_points = int(self.alien_points * self.score_scale) |