62 lines
1.2 KiB
Ruby
62 lines
1.2 KiB
Ruby
class LorentzField
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BASE_TIME = 25 # Base time for the field to be active in seconds
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def initialize
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@time = 0
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@active = false
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@font = Gosu::Font.new(24, name: "assets/fonts/tn.ttf")
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$bus.on(:lorentz_field?) do
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next @active
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end
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$bus.on(:lorentz_field) do
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if @active
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t = @time
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remaining = BASE_TIME - t
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if t < 4
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# fade in
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next t / 4.0
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elsif remaining < 4
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# fade out
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next remaining / 4.0
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else
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# fully active
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next 1.0
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end
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else
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next 0.0
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end
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end
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end
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def attack(_direction)
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return if @active
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$bus.emit(:consume, :lorentz_field, 1)
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@active = true
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@time = 0
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$bus.emit(:lorentz_field!, true)
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end
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def update(dt)
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return unless @active
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@time += dt
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if @time >= BASE_TIME
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@time = 0
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@active = false
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$bus.emit(:lorentz_field!, false)
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end
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end
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def draw
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# for now draw the time
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return unless @active
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remaining = BASE_TIME - @time
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text = "Lorentz Field: #{remaining.round(1)}s"
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@font.draw_text(text, SCREEN_SIZE[0] / 2 - @font.text_width(text) / 2, 10, Float::INFINITY, 1, 1, Gosu::Color::CYAN)
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end
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end |