tkinter-space-game/formation_spawner.py
2023-01-05 11:35:28 +00:00

341 lines
10 KiB
Python

import math
from random import choice, randint, random
from boss import CircleBossFormation, SnakeBossFormation
from enemy import EnemyAttributes
from formation import (
CircleFormation,
CircleFormationAttributes,
EnemyFormation,
FormationAttributes,
LemniscateFormation,
RectangleFormation,
RectangleFormationAttributes,
TriangleFormation,
TriangleFormationAttributes,
)
def wobble_pattern(formation):
"""A sinusoidal movement pattern
:param formation: Formation to move
"""
x = (1+math.sin(formation.alpha/80)) * formation.game.w/2
y = formation.y + (1 if formation.alpha % 4 == 0 else 0)
formation.set_pos((x, y))
def speed_pattern(formation):
"""Quickly move the formation downwards
:param formation: Formation to move
"""
x = formation.x
y = formation.y + 2
formation.set_pos((x, y))
def slow_pattern(formation):
"""Slowly move the formation downwards
:param formation: Formation to move
"""
x = formation.x
y = formation.y + (1 if formation.alpha % 8 == 0 else 0)
formation.set_pos((x, y))
def slide_in_pattern(formation):
"""Slowly move into the center of the screen and then remain there
:param formation: Formation to move
"""
cy = formation.game.h//3
if formation.alpha < 400:
x = formation.x
y = (formation.alpha/400) * (cy*1.5) - (cy*0.5)
else:
x = formation.x
y = formation.y
formation.set_pos((int(x), int(y)))
def no_pattern(formation):
"""No movement, stay in the center
:param formation: Formation to move
"""
formation.set_pos((
formation.game.w // 2,
formation.game.h // 3
))
def figure_of_eight_pattern(formation):
"""Move the formation in a figure of eight
:param formation: Formation to move
"""
period = 600
edge = 8
radius = formation.game.h//3 - edge
cx, cy = formation.game.w//2, formation.game.h//3
if formation.alpha < 200:
x = formation.x
y = (formation.alpha/200) * (cy*1.5) - (cy*0.5)
else:
a = formation.alpha - 200
t = (a/period)*2*math.pi - math.pi/2
y = cy + (radius * math.cos(t)) / (1 + math.sin(t)**2)
x = cx + (radius * math.sin(t) * math.cos(t)) / (1 + math.sin(t)**2)
formation.set_pos((int(x), int(y)))
class FormationSpawner():
"""Object to manage spawning of enemies and phases"""
def __init__(self, game):
"""Initialise the formation spawner
:param game: The game which this belongs to
"""
self.game = game
self.formations = []
self.difficulty_multiplier = 0.5
self.next_formation = 0
self.phase = -1
self.phases = [
Phase("Phase:1", [
self.spawn_fleet,
self.spawn_loop,
self.spawn_orbital], 10),
Phase("Boss:1", [self.spawn_circle_boss], 1),
Phase("Phase:2", [
self.spawn_fleet,
self.spawn_loop,
self.spawn_orbital], 10, max_wave=3),
Phase("Boss:2", [self.spawn_snake_boss], 1),
]
self.to_spawn = 0
self.current_reward = 1
def tick(self):
"""Update all formations"""
for formation, update in self.formations:
formation.tick(self.game.player)
update(formation)
if formation.y > self.game.h:
formation.destroy()
self.formations = list(
filter(lambda s: not s[0].destroyed, self.formations))
self.spawn_next()
def spawn_random(self):
"""Spawn a random formation"""
options = [
self.spawn_fleet,
self.spawn_loop,
self.spawn_orbital,
self.spawn_rectangle
]
choice(options)()
def spawn_formation(self, formation: EnemyFormation, update):
"""Add a formation to the list of formations
:param formation: Formation to add
:type formation: EnemyFormation
:param update: movement function to use for this formation
"""
update(formation)
formation.show()
self.formations.append((formation, update))
def spawn_circle_boss(self):
"""Spawn the circle boss"""
attributes = EnemyAttributes(
hp=int(15*self.difficulty_multiplier),
reward=self.current_reward,
cooldown=50
)
formation = CircleBossFormation(self.game, attributes)
formation.set_pos((self.game.w//2, 0))
update = figure_of_eight_pattern
self.spawn_formation(formation, update)
def spawn_snake_boss(self):
"""Spawn the snake boss"""
attributes = FormationAttributes(
hp=int(10*self.difficulty_multiplier),
reward=self.current_reward,
cooldown=160
)
formation = SnakeBossFormation(self.game, attributes)
formation.set_pos((self.game.w//2, 0))
update = slide_in_pattern
self.spawn_formation(formation, update)
def spawn_fleet(self):
"""Spawn the fleet formation"""
sprite = randint(6, 7)
position = (random()*self.game.w, -32)
attributes = TriangleFormationAttributes(
hp=int(self.difficulty_multiplier),
cooldown=-1,
reward=self.current_reward,
count=randint(1, 3)*2 + 1,
spacing=8
)
formation = TriangleFormation(
self.game, f"smallenemy{sprite}", attributes)
formation.set_pos(position)
update = speed_pattern
self.spawn_formation(formation, update)
def spawn_orbital(self):
"""Spawn the orbital formation"""
position = (random()*self.game.w, -32)
sprite = choice((1, 3))
attributes = CircleFormationAttributes(
hp=int(self.difficulty_multiplier * 2),
count=randint(3, 4)*2,
radius=randint(10, 20),
period=randint(100//int(self.difficulty_multiplier), 400),
cooldown=80,
reward=self.current_reward
)
formation = CircleFormation(
self.game, f"smallenemy{sprite}", attributes)
formation.set_pos(position)
update = wobble_pattern
formation.alpha = randint(1, 1000)
self.spawn_formation(formation, update)
def spawn_rectangle(self):
"""Spawn the rectangle formation"""
sprite = choice((0, 2))
position = (random() * self.game.w, -32)
attributes = RectangleFormationAttributes(
hp=int(self.difficulty_multiplier * 2),
width=randint(4, 6),
height=randint(2, 3),
cooldown=80,
reward=self.current_reward,
)
formation = RectangleFormation(
self.game, f"smallenemy{sprite}", attributes
)
formation.set_pos(position)
update = wobble_pattern
formation.alpha = randint(1, 1000)
self.spawn_formation(formation, update)
def spawn_loop(self):
"""Spawn the loop formation"""
sprite = choice((4, 5))
position = (random()*self.game.w, -32)
attributes = CircleFormationAttributes(
count=randint(4, 8),
radius=randint(self.game.w//2, self.game.w),
period=randint(200, 300),
hp=int(self.difficulty_multiplier),
reward=self.current_reward,
cooldown=160,
)
formation = LemniscateFormation(
self.game, f"smallenemy{sprite}", attributes)
formation.set_pos(position)
update = slow_pattern
self.spawn_formation(formation, update)
def spawn_next(self):
"""Spawn the next formation to be spawned"""
if self.to_spawn > 0:
if len(self.formations) < self.current_phase().max_wave:
if self.game.alpha > self.next_formation \
and self.next_formation != -1:
self.next_formation = self.game.alpha \
+ 100 / self.difficulty_multiplier
self.current_phase().get_spawn_function()()
self.to_spawn -= 1
else:
if len(self.formations) == 0:
self.next_phase()
def next_phase(self):
"""Increment the phase by 1 and start the next phase"""
self.phase += 1
self.game.save_game()
self.start_phase()
def start_phase(self):
"""Start the next phase"""
self.to_spawn = self.current_phase().duration
self.difficulty_multiplier = (self.phase+2) * 0.5
self.current_reward = int(2**self.difficulty_multiplier)
self.next_formation = self.game.alpha + 100
if self.current_phase().name:
self.game.effect_player.splash_text(self.current_phase().name)
def current_phase(self):
"""Return the current phase"""
if self.phase < len(self.phases):
return self.phases[self.phase]
return Phase(f"Phase:{self.phase-1}", [
self.spawn_random
], 10 * self.difficulty_multiplier,
max_wave=int(self.difficulty_multiplier)
)
def clear_all(self):
"""Remove all formation objects"""
for f, _ in self.formations:
f.destroy()
class Phase:
"""Rules for which formation will be spawned"""
def __init__(self, name, spawn_functions, duration, max_wave=2):
"""__init__.
:param name: The name of the phase
:param spawn_functions: A list of functions to use to spawn enemies
:param duration: The number of formations to spawn
before the phase is over
:param max_wave: The maximum number of formations to spawn at a time
"""
self.spawn_functions = spawn_functions
self.duration = duration
self.name = name
self.max_wave = max_wave
def get_spawn_function(self):
"""Return a random spawn function"""
return choice(self.spawn_functions)