121 lines
2.5 KiB
Text
121 lines
2.5 KiB
Text
-- Lesson 20: Menus And Screens. The finished script, exactly as the lesson ends.
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dofile("Singe/Framework.singe")
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overlaySetResolution(discGetWidth(), discGetHeight())
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singeSetPauseKeyEnabled(false)
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local SHIP_Y = 300
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local ship = spriteLoad(DIR .. "art/ship.png")
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local hudFont = fontLoad("Singe/FreeSansBold.ttf", 20)
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local shipX = 0
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local speed = 2
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local score = 0
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local paused = false
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local gui = nil
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local page = nil
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local function say(text)
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if gui ~= nil then
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guiSetValue(gui, page, "status", text)
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end
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end
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local function closeMenu()
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paused = false
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singeSetPauseFlag(false)
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if gui ~= nil then
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guiHide(gui, page)
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guiSetInput(gui, false)
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end
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end
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local function openMenu()
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paused = true
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singeSetPauseFlag(true)
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if gui ~= nil then
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guiSetValue(gui, page, "score", string.format("%06d", score))
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guiShow(gui, page)
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guiSetInput(gui, true)
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end
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end
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if singeHasGpu() then
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gui = guiNew(overlayGetWidth(), overlayGetHeight())
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page = guiLoad(gui, DIR .. "pause.rml")
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guiHide(gui, page)
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guiSetInput(gui, false)
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guiSetHandler(gui, page, "resume", "click", function()
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closeMenu()
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end)
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guiSetHandler(gui, page, "restart", "click", function()
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score = 0
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shipX = 0
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closeMenu()
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end)
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guiSetHandler(gui, page, "quit", "click", function()
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singeQuit()
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end)
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guiSetHandler(gui, page, "speed", "change", function(g, d, id, event, value)
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speed = math.floor(tonumber(value))
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say("Speed " .. speed)
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end)
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end
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function onInputPressed(what)
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if what == SWITCH_PAUSE then
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if paused then
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closeMenu()
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else
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openMenu()
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end
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end
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end
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function onOverlayUpdate()
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overlayClear()
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if not paused then
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shipX = shipX + speed
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if shipX > overlayGetWidth() then
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shipX = -spriteGetWidth(ship)
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score = score + 10
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end
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end
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spriteDraw(ship, shipX, SHIP_Y)
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fontSelect(hudFont)
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colorForeground(255, 255, 255)
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fontPrint(16, 16, string.format("SCORE %06d", score))
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fontPrint(16, 40, "P pauses")
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if paused then
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if gui ~= nil then
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guiDraw(gui)
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else
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colorForeground(255, 211, 90)
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fontPrint(16, 70, "PAUSED -- no GPU, so no menu")
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end
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end
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return OVERLAY_UPDATED
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end
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function onShutdown()
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if gui ~= nil then
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guiDelete(gui)
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end
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spriteUnload(ship)
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fontUnload(hudFont)
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end
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