100 lines
1.9 KiB
Ruby
100 lines
1.9 KiB
Ruby
require "app/bounce.rb"
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BOUNCE_ACCL = 1.02
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GRAVITY = 0.9
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CX = 636
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CY = 399
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CR = 205
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def tick args
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# INIT
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# circle
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cx = CX
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cy = CY
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cr = CR
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# pause
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args.state.paused = false if args.state.paused.nil?
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if args.state.ball.nil?
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args.state.ball = {
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x: 500,
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y: 500,
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}
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args.state.ball_vector = {
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x: 0,
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y: 0
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}
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end
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# INPUT
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if args.inputs.keyboard.key_up.space
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args.state.paused = !args.state.paused
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end
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# LOOP
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if !args.state.paused
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#ball vector
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move_x = args.state.ball_vector[:x]
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move_y = args.state.ball_vector[:y]
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# apply gravity
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move_y = move_y - GRAVITY
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args.state.ball_vector[:x] = move_x
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args.state.ball_vector[:y] = move_y
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# bounce
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x = args.state.ball[:x]
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y = args.state.ball[:y]
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new_x = x + move_x
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new_y = y + move_y
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if bouncing?(new_x,new_y,cx,cy,cr)
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new_move_x, new_move_y = reflection_vector(x,y,cx,cy,move_x,move_y)
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args.state.ball_vector[:x] = new_move_x * BOUNCE_ACCL
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args.state.ball_vector[:y] = new_move_y * BOUNCE_ACCL
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end
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# move the ball
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move_x = args.state.ball_vector[:x]
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move_y = args.state.ball_vector[:y]
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args.state.ball[:x] = args.state.ball[:x] + move_x
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args.state.ball[:y] = args.state.ball[:y] + move_y
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end
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# END?
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if !args.state.paused
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if too_fast?(move_x, move_y, cr)
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#RESET state and pause
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args.state.ball = {
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x: 500,
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y: 500,
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}
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args.state.ball_vector = {
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x: 0,
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y: 0
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}
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args.state.paused = true
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end
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end
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# RENDER
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#
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# BG
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args.outputs.sprites << {
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x: 0,
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y: 0,
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w: 1280,
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h: 720,
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path: 'sprites/BG1.png' }
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if args.state.paused
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args.outputs.labels << [640, 40, "Game is paused. Press <space> to continue", 4, 1]
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end
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# BALL
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args.outputs.sprites << {
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x: args.state.ball[:x]-16,
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y: args.state.ball[:y]-16,
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w: 32,
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h: 32,
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path: 'sprites/ball.png' }
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end
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