Journal: A CRUD developer builds a game
What did I do today? #
It has reached a reasonable state. There is some UI, a life bar, score keeping, and even some fancy camera shaking effect. The camera shaking was interesting, I borrowed some code from online and tweaked it a bit. The effect is alright.
Here is the code (thanks to KidsCanCode):
extends Camera2D
export var decay = 0.7 # How quickly the shaking stops [0, 1].
export var max_offset = Vector2(50, 35) # Maximum hor/ver shake in pixels.
export var max_roll = 0.1 # Maximum rotation in radians (use sparingly).
var trauma = 0.0 # Current shake strength.
var trauma_power = 3 # Trauma exponent. Use [2, 3].
onready var noise = OpenSimplexNoise.new()
var noise_y = 0
func _ready():
randomize()
noise.seed = randi()
noise.period = 4
noise.octaves = 2
func add_trauma(amount):
trauma = min(trauma + amount, 1.0)
func _process(delta):
if trauma:
trauma = max(trauma - decay * delta, 0)
shake()
func shake():
var amount = pow(trauma, trauma_power)
noise_y += 1
rotation = max_roll * amount * noise.get_noise_2d(noise.seed, noise_y)
offset.x = max_offset.x * amount * noise.get_noise_2d(noise.seed*2, noise_y)
offset.y = max_offset.y * amount * noise.get_noise_2d(noise.seed*3, noise_y)Use it by calling add_trauma with a value between 0.1 and 1.0. The higher the value, the more intense the shake.
Demo #
Click here to play.
WASD or arrows to move, or click/touch to move.