Class: Bestguigui::SplashGem

Inherits:
Object
  • Object
show all
Defined in:
lib/bestguigui_lab/splash_scene.rb

Overview

Le rubis animé du splash screen : tombe du haut de l'écran, touche le titre, rebondit au-dessus, puis se stabilise. Dessiné en primitives Gosu (aucune image).

Constant Summary collapse

SIZE = 
220
GAP = 
40
OVERSHOOT = 
12
FALL = 
0.5
BOUNCE_UP = 
0.25
SETTLE = 
0.2
IMPACT_DIP = 
10
POINTS =

Points du diamant, en fractions (0..1) d'une boîte carrée.

{
    tl: [0.30, 0.32],
    tr: [0.70, 0.32],
    l: [0.12, 0.45],
    r: [0.88, 0.45],
    hub: [0.50, 0.47],
    bottom: [0.50, 0.88]
}.freeze
HIGHLIGHT = 
[240, 150, 155].freeze
BASE = 
[210, 90, 95].freeze
DARK = 
[180, 60, 65].freeze
OUTLINE_RGB = 
[40, 30, 40].freeze
FACETS = 
[
    [i[tl hub l], HIGHLIGHT],
    [i[tl tr hub], BASE],
    [i[tr r hub], DARK],
    [i[l hub bottom], HIGHLIGHT],
    [i[r bottom hub], DARK]
].freeze
OUTLINE = 
i[tl tr r bottom l].freeze

Instance Method Summary collapse

Constructor Details

#initialize(window) ⇒ SplashGem

Returns a new instance of SplashGem.



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# File 'lib/bestguigui_lab/splash_scene.rb', line 41

def initialize(window)
    @window = window
end

Instance Method Details

#draw(elapsed, alpha) ⇒ Object 



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# File 'lib/bestguigui_lab/splash_scene.rb', line 45

def draw(elapsed, alpha)
    center_x = @window.width / 2
    center_y = center_y(elapsed)

    FACETS.each { |names, rgb| draw_facet(names, rgb, center_x, center_y, alpha) }
    draw_outline(center_x, center_y, alpha)
end

#title_offset(elapsed) ⇒ Object 



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# File 'lib/bestguigui_lab/splash_scene.rb', line 53

def title_offset(elapsed)
    return 0 if elapsed < FALL

    if elapsed < FALL + BOUNCE_UP
        Helpers.lerp(IMPACT_DIP, 0, Helpers.ease_out((elapsed - FALL) / BOUNCE_UP))
    else
        0
    end
end