115 lines
2.9 KiB
GDScript
115 lines
2.9 KiB
GDScript
extends Node
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var screen_size = Vector2(1920.0, 1080.0) # Default screen size (this is a float for some reason)
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var viewport_size
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@onready var extent: Rect2 = get_viewport().get_visible_rect()
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# Main menu & game spawning
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@onready
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var mainMenuScene = preload("res://main_menu.tscn").instantiate()
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@onready
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var gameScene = preload("res://molecular/molecular_stage.tscn").instantiate()
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# utils.
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var rng = RandomNumberGenerator.new()
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var eps: float = 1e-4
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# managers
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@onready
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var foodManager = gameScene.get_node("FoodManager")
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# A world "current"
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# polar
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var flow_dir: float # [0, 2pi)
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var flow_mag: float # [0, 1]
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# cartesian
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var flow_x: float
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var flow_y: float
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# Swap period
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var flowT: float = 10
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# A game timer
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var t: float = 0.0
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func _ready() -> void:
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# Create viewport
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viewport_size = get_viewport().get_visible_rect().size
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# Create game (main menu)
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add_child(mainMenuScene)
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# initial world current
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get_new_flow()
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func _physics_process(delta: float) -> void:
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t += delta
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# Flow current change
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if abs(fmod(t, flowT)) < eps:
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get_new_flow()
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func start_game() -> void:
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add_child(gameScene)
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# TODO: This needs to be called from a script inheriting a CharacterBody2D (e.g. the player)
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# Alternative would be to pass the player reference to this script (which might be better?)
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func init_screen_size(x:float, y:float) -> void:
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screen_size.x = x
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screen_size.y = y
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# This can take a vector of any size (but should be 2d, other components are unused)
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func get_boundaried_position(position):
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# clamp
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#return position.clamp(Vector2.ZERO, screen_size)
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# periodic
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position.x = wrapf(position.x, 0, screen_size.x)
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position.y = wrapf(position.y, 0, screen_size.y)
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return position
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func get_new_flow():
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flow_dir = rng.randf()*2*PI
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flow_mag = rng.randf()
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flow_x = flow_mag * cos(flow_dir)
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flow_y = flow_mag * sin(flow_dir)
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func calc_distance(one, two) -> float:
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var candidate = one.distance_to(two)
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var onedup = one
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# FIXME: doesnt work-- predators lose track across game boundary
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if one.x < screen_size.x/2:
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if one.y < screen_size.y/2:
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# top left
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onedup.y -= screen_size.y
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candidate = min(candidate, onedup.distance_to(two))
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onedup.y += screen_size.y
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onedup.x -= screen_size.x
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candidate = min(candidate, onedup.distance_to(two))
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else:
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# bottom left
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onedup.y += screen_size.y
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candidate = min(candidate, onedup.distance_to(two))
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onedup.y -= screen_size.y
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onedup.x -= screen_size.x
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candidate = min(candidate, onedup.distance_to(two))
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else:
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if one.y < screen_size.y/2:
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# top right
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onedup.y -= screen_size.y
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candidate = min(candidate, onedup.distance_to(two))
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onedup.y += screen_size.y
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onedup.x += screen_size.x
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candidate = min(candidate, onedup.distance_to(two))
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else:
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# botom right
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onedup.y += screen_size.y
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candidate = min(candidate, onedup.distance_to(two))
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onedup.y -= screen_size.y
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onedup.x += screen_size.x
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candidate = min(candidate, onedup.distance_to(two))
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return candidate
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