122 lines
2.8 KiB
Lua
122 lines
2.8 KiB
Lua
ui = class('ui')
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ui.relevantInputs = { 'enter', 'up', 'down' }
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ui.height = 240
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ui.fullMessage = ""
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ui.active = false
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ui.border = 10
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ui.textLines = {}
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ui.startLine = 1
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ui.endLine = 1
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local font = love.graphics.newFont('assets/ui/font.ttf', 24)
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love.graphics.setFont(font)
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ui.windowWidth = love.graphics.getWidth()
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ui.windowHeight = love.graphics.getHeight()
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function ui:showMessage(message)
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ui.active = true
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local maxLines = math.floor((ui.height - ui.border) / font:getHeight())
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local fullLines = font:getWrap(ui.fullMessage, ui.windowWidth - ui.border)
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ui.textLines = {}
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local fullIndex = 1
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local messageTail = message
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while not endsWith(messageTail, ui.textLines[#ui.textLines]) do
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fullIndex, line, messageTail = ui:getMaxString(string.sub(messageTail, fullIndex))
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fullIndex = fullIndex + 1 -- account for the following space
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table.insert(ui.textLines, line)
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end
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ui.endLine = maxLines
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ui:setLineRange(ui.startLine, ui.endLine)
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end
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function ui:setLineRange(startLine, endLine)
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ui.fullMessage = ""
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if endLine > #ui.textLines then endLine = #ui.textLines end
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for index = startLine, endLine, 1 do
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ui.fullMessage = ui.fullMessage .. ui.textLines[index]
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end
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end
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function endsWith(s, send)
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if not send then return false end
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return #s >= #send and s:find(send, #s-#send+1, true) and true or false
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end
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function ui:getMaxString(stringTail)
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local index = string.len(stringTail)
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local width = font:getWidth(string.sub(stringTail, 1, index))
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local needsCutting = width > ui.windowWidth - ui.border
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while width > ui.windowWidth - ui.border do
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width = font:getWidth(string.sub(stringTail, 1, index))
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index = index - 1
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end
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if needsCutting and
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string.sub(stringTail, index + 1, index + 1) ~= ' ' then
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local cursor = '!'
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while cursor ~= ' ' and cursor ~= '' do
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index = index - 1
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cursor = string.sub(stringTail, index, index)
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end
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end
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return index, string.sub(stringTail, 1, index), stringTail
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end
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function ui:draw()
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if ui.active then
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love.graphics.setColor(255, 255, 255, 150)
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love.graphics.rectangle('fill', 0, ui.windowHeight - ui.height, ui.windowWidth, ui.height)
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love.graphics.setColor(55, 60, 60, 255)
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love.graphics.printf(ui.fullMessage, ui.border, ui.windowHeight - ui.height + ui.border, ui.windowWidth - ui.border)
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end
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end
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function ui:up()
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if ui.startLine > 1 then
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ui.startLine = ui.startLine - 1
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ui.endLine = ui.endLine - 1
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ui:setLineRange(ui.startLine, ui.endLine)
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end
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end
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function ui:down()
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if ui.endLine < #ui.textLines then
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ui.startLine = ui.startLine + 1
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ui.endLine = ui.endLine + 1
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ui:setLineRange(ui.startLine, ui.endLine)
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end
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end
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function ui:enter()
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ui.active = false
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end
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function ui:sendInput(input)
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local uiFunc = self[input]
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if uiFunc ~= nil then
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uiFunc(self)
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end
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end
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return ui
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