74 lines
1.9 KiB
Lua
74 lines
1.9 KiB
Lua
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require "common.globals"
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require "common.class"
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local PageView = require "api.page.pageview"
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---@class Screen
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---@field pageview PageView
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local Screen = {
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__tostring = function() return "Screen" end
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}
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---Create a new Screen instance
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---@param o? Screen
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---@return Screen
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function Screen.new(o)
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local self = CreateInstance(Screen, o)
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self.pageview = PageView.new()
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return self
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end
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---Initialize screen, override to push new page into pageview
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function Screen:init()
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end
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---@param button integer # options are under the `game` table prefixed with `BUTTON`
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function Screen:handleButtonInput(button)
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if self.pageview:get() then
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self.pageview:get():handleButtonInput(button)
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end
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end
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---@param knob integer # `0` = Left, `1` = Right
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---@param delta number # in radians, `-2*pi` to `0` (turning CCW) and `0` to `2*pi` (turning CW)
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function Screen:handleKnobInput(knob, delta)
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if self.pageview:get() then
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self.pageview:get():handleKnobInput(knob, delta)
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end
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end
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---@param x number
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---@param y number
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---@param button integer # `0` = Left, `1` = Right, `2` = Middle
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function Screen:handleMouseInput(x, y, button)
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if self.pageview:get() then
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self.pageview:get():handleMouseInput(x, y, button)
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end
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end
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---@class ScreenCallbackObject
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---@field reason string # short string representation what the cb object is about
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---@field hint any # hint object to help continue code flow in parent
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---Event callback when screen gets deactivated (eg.: pageview is empty)
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---@param obj ScreenCallbackObject
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function Screen.onDeactivation(obj)
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end
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function Screen:deactivate()
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self.onDeactivation({reason = "deactivation"})
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end
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---@param deltaTime number # frametime in seconds
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function Screen:render(deltaTime)
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if not self.pageview:get() then
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self:deactivate()
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end
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self.pageview:render(deltaTime)
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end
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return Screen
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