mirror of https://github.com/kepler155c/opus
91 lines
2.5 KiB
Lua
91 lines
2.5 KiB
Lua
local Tween = require('ui.tween')
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local Transition = { }
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function Transition.slideLeft(args)
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local ticks = args.ticks or 6
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local easing = args.easing or 'outQuint'
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local pos = { x = args.ex }
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local tween = Tween.new(ticks, pos, { x = args.x }, easing)
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local lastScreen = args.canvas:copy()
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return function(device)
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local finished = tween:update(1)
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local x = math.floor(pos.x)
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lastScreen:dirty()
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lastScreen:blit(device, {
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x = args.ex - x + args.x,
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y = args.y,
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ex = args.ex,
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ey = args.ey },
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{ x = args.x, y = args.y })
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args.canvas:blit(device, {
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x = args.x,
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y = args.y,
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ex = args.ex - x + args.x,
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ey = args.ey },
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{ x = x, y = args.y })
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return not finished
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end
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end
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function Transition.slideRight(args)
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local ticks = args.ticks or 6
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local easing = args.easing or'outQuint'
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local pos = { x = args.x }
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local tween = Tween.new(ticks, pos, { x = args.ex }, easing)
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local lastScreen = args.canvas:copy()
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return function(device)
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local finished = tween:update(1)
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local x = math.floor(pos.x)
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lastScreen:dirty()
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lastScreen:blit(device, {
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x = args.x,
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y = args.y,
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ex = args.ex - x + args.x,
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ey = args.ey },
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{ x = x, y = args.y })
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args.canvas:blit(device, {
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x = args.ex - x + args.x,
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y = args.y,
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ex = args.ex,
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ey = args.ey },
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{ x = args.x, y = args.y })
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return not finished
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end
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end
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function Transition.expandUp(args)
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local ticks = args.ticks or 3
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local easing = args.easing or 'linear'
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local pos = { y = args.ey + 1 }
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local tween = Tween.new(ticks, pos, { y = args.y }, easing)
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return function(device)
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local finished = tween:update(1)
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args.canvas:blit(device, nil, { x = args.x, y = math.floor(pos.y) })
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return not finished
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end
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end
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function Transition.grow(args)
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local ticks = args.ticks or 3
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local easing = args.easing or 'linear'
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local tween = Tween.new(ticks,
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{ x = args.width / 2 - 1, y = args.height / 2 - 1, w = 1, h = 1 },
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{ x = 1, y = 1, w = args.width, h = args.height }, easing)
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return function(device)
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local finished = tween:update(1)
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local subj = tween.subject
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local rect = { x = math.floor(subj.x), y = math.floor(subj.y) }
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rect.ex = math.floor(rect.x + subj.w - 1)
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rect.ey = math.floor(rect.y + subj.h - 1)
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args.canvas:blit(device, rect, { x = args.x + rect.x - 1, y = args.y + rect.y - 1})
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return not finished
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end
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end
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return Transition
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