81 lines
1.9 KiB
Crystal
81 lines
1.9 KiB
Crystal
class Funfriend::ChatterContext < Funfriend::WindowContext
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getter renderer : TextRenderer
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getter parent : WindowContext?
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property parent_relative_pos : Vec2 = Vec2.zero
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getter window_size : Vec2
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property timer : Float64
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WINDOW_SIZE = {width: 256, height: 32}
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DEFAULT_DURATION = 6.0
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PADDING = 10
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def initialize(text : String, font : String, position : Vec2, duration : Float64 = DEFAULT_DURATION, parent : WindowContext? = nil)
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sheet = FontMan.parse_bm(File.read "#{font}.fnt")
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position_data = FontMan.position_text(text, sheet)
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@window_size = Vec2.new(position_data[:width], position_data[:height]) + PADDING * 2
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super(
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title: "??__FUNFRIEND__?? > CHATTER",
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width: window_size.x_i, height: window_size.y_i,
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transparent: false
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)
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# just for initialization, let OpenGL know this is the current context
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window.make_context_current
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@timer = duration
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@renderer = TextRenderer.new(text, font, sheet, window_size.x_i, window_size.y_i)
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window.position = (position - window_size / 2).xy_i
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@parent = parent
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if parent
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@parent_relative_pos = position - (Vec2.new(parent.window.position) + Vec2.new(parent.window.size) / 2)
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end
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end
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def update_position
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if parent
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p = parent.not_nil!
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if !p.closed
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window.position = (Vec2.new(p.window.position) + Vec2.new(p.window.size) / 2 + parent_relative_pos - window_size / 2).xy_i
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end
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end
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end
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def render(dt : Float64)
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# let OpenGL draw to it
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window.make_context_current
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LibGL.clear_color(0.0, 0.0, 0.0, 1.0)
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LibGL.clear(Buffer::Bit::Color)
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renderer.render(dt)
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end
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def update(dt : Float64)
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@timer = @timer - dt
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if @timer <= 0.0
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window.should_close
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end
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update_position
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render(dt)
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window.swap_buffers
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end
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def bump
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@parent_relative_pos.y -= window_size.y + 10
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update_position
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end
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def clean_up
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renderer.clean_up
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end
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end
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