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