127 lines
5.2 KiB
Lua
127 lines
5.2 KiB
Lua
-------------------------------------------------------------------------------------------
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--
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-- raylib [shapes] example - raylib logo animation
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--
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-- This example has been created using raylib 1.6 (www.raylib.com)
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-- raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
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--
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-- Copyright (c) 2014-2016 Ramon Santamaria (@raysan5)
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--
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-------------------------------------------------------------------------------------------
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-- Initialization
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-------------------------------------------------------------------------------------------
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local screenWidth = 800
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local screenHeight = 450
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InitWindow(screenWidth, screenHeight, "raylib [shapes] example - raylib logo animation")
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local logoPositionX = screenWidth/2 - 128
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local logoPositionY = screenHeight/2 - 128
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local framesCounter = 0
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local lettersCount = 0
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local topSideRecWidth = 16
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local leftSideRecHeight = 16
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local bottomSideRecWidth = 16
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local rightSideRecHeight = 16
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local state = 0 -- Tracking animation states (State Machine)
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local alpha = 1.0 -- Useful for fading
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SetTargetFPS(60) -- Set target frames-per-second
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-------------------------------------------------------------------------------------------
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-- Main game loop
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while not WindowShouldClose() do -- Detect window close button or ESC key
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-- Update
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---------------------------------------------------------------------------------------
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if (state == 0) then -- State 0: Small box blinking
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framesCounter = framesCounter + 1
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if (framesCounter == 120) then
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state = 1
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framesCounter = 0 -- Reset counter... will be used later...
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end
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elseif (state == 1) then -- State 1: Top and left bars growing
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topSideRecWidth = topSideRecWidth + 4
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leftSideRecHeight = leftSideRecHeight + 4
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if (topSideRecWidth == 256) then state = 2 end
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elseif (state == 2) then -- State 2: Bottom and right bars growing
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bottomSideRecWidth = bottomSideRecWidth + 4
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rightSideRecHeight = rightSideRecHeight + 4
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if (bottomSideRecWidth == 256) then state = 3 end
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elseif (state == 3) then -- State 3: Letters appearing (one by one)
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framesCounter = framesCounter + 1
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if (framesCounter//12 == 1) then -- Every 12 frames, one more letter!
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lettersCount = lettersCount + 1
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framesCounter = 0
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end
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if (lettersCount >= 10) then -- When all letters have appeared, just fade out everything
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alpha = alpha - 0.02
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if (alpha <= 0.0) then
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alpha = 0.0
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state = 4
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end
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end
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elseif (state == 4) then -- State 4: Reset and Replay
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if (IsKeyPressed(KEY.R)) then
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framesCounter = 0
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lettersCount = 0
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topSideRecWidth = 16
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leftSideRecHeight = 16
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bottomSideRecWidth = 16
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rightSideRecHeight = 16
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alpha = 1.0
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state = 0 -- Return to State 0
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end
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end
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---------------------------------------------------------------------------------------
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-- Draw
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---------------------------------------------------------------------------------------
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BeginDrawing()
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ClearBackground(RAYWHITE)
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if (state == 0) then
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if ((framesCounter//15)%2 == 1) then DrawRectangle(logoPositionX, logoPositionY, 16, 16, BLACK) end
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elseif (state == 1) then
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DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, BLACK)
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DrawRectangle(logoPositionX, logoPositionY, 16, leftSideRecHeight, BLACK)
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elseif (state == 2) then
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DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, BLACK)
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DrawRectangle(logoPositionX, logoPositionY, 16, leftSideRecHeight, BLACK)
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DrawRectangle(logoPositionX + 240, logoPositionY, 16, rightSideRecHeight, BLACK)
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DrawRectangle(logoPositionX, logoPositionY + 240, bottomSideRecWidth, 16, BLACK)
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elseif (state == 3) then
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DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, Fade(BLACK, alpha))
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DrawRectangle(logoPositionX, logoPositionY + 16, 16, leftSideRecHeight - 32, Fade(BLACK, alpha))
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DrawRectangle(logoPositionX + 240, logoPositionY + 16, 16, rightSideRecHeight - 32, Fade(BLACK, alpha))
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DrawRectangle(logoPositionX, logoPositionY + 240, bottomSideRecWidth, 16, Fade(BLACK, alpha))
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DrawRectangle(screenWidth/2 - 112, screenHeight/2 - 112, 224, 224, Fade(RAYWHITE, alpha))
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DrawText(string.sub("raylib", 0, lettersCount), screenWidth/2 - 44, screenHeight/2 + 48, 50, Fade(BLACK, alpha))
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elseif (state == 4) then DrawText("[R] REPLAY", 340, 200, 20, GRAY) end
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EndDrawing()
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---------------------------------------------------------------------------------------
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end
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-- De-Initialization
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-------------------------------------------------------------------------------------------
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CloseWindow() -- Close window and OpenGL context
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------------------------------------------------------------------------------------------- |