From f03010630a2769e0985e100f76a15e76bb9f493c Mon Sep 17 00:00:00 2001
From: TSnake41 <TSnake@Outlook.fr>
Date: Tue, 31 Mar 2020 21:30:17 +0200
Subject: [PATCH] Added repl and animated logo examples.

---
 examples/lua_repl.lua                |  18 ++++
 examples/shapes_logo_raylib_anim.lua | 120 +++++++++++++++++++++++++++
 2 files changed, 138 insertions(+)
 create mode 100644 examples/lua_repl.lua
 create mode 100644 examples/shapes_logo_raylib_anim.lua

diff --git a/examples/lua_repl.lua b/examples/lua_repl.lua
new file mode 100644
index 0000000..b04e2b7
--- /dev/null
+++ b/examples/lua_repl.lua
@@ -0,0 +1,18 @@
+rl.SetConfigFlags(rl.FLAG_VSYNC_HINT)
+
+rl.InitWindow(800, 450, "raylib [core] example - basic window")
+
+while not rl.WindowShouldClose() do
+	rl.BeginDrawing()
+
+	rl.ClearBackground(rl.RAYWHITE)
+	rl.DrawText("Press [R] to go to REPL !", 260, 200, 20, rl.LIGHTGRAY)
+
+  if rl.IsKeyDown(rl.KEY_R) then
+    raylua.repl()
+  end
+
+	rl.EndDrawing()
+end
+
+rl.CloseWindow()
diff --git a/examples/shapes_logo_raylib_anim.lua b/examples/shapes_logo_raylib_anim.lua
new file mode 100644
index 0000000..d9448e5
--- /dev/null
+++ b/examples/shapes_logo_raylib_anim.lua
@@ -0,0 +1,120 @@
+local ffi = require "ffi"
+
+local screenWidth = 800
+local screenHeight = 450
+
+rl.SetConfigFlags(rl.FLAG_VSYNC_HINT)
+rl.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
+local alpha = 1.0
+
+local lua_color =	ffi.new("Color", 3, 3, 128, 255)
+
+local function Fade(color, alpha)
+  return ffi.new("Color",
+    color.r * alpha,
+    color.g * alpha,
+    color.b * alpha,
+    color.a * alpha
+  )
+end
+
+while not rl.WindowShouldClose() do
+  if (state == 0) then
+    framesCounter = framesCounter + 1
+
+    if (framesCounter == 120) then
+      state = 1
+      framesCounter = 0
+    end
+  elseif (state == 1) then
+    topSideRecWidth = topSideRecWidth + 4
+    leftSideRecHeight = leftSideRecHeight + 4
+
+    if (topSideRecWidth == 256) then state = 2 end
+  elseif (state == 2) then
+    bottomSideRecWidth = bottomSideRecWidth + 4
+    rightSideRecHeight = rightSideRecHeight + 4
+
+    if (bottomSideRecWidth == 256) then state = 3 end
+  elseif (state == 3) then
+    framesCounter = framesCounter + 1
+
+    if (math.floor(framesCounter / 12) == 1) then
+      lettersCount = lettersCount + 1
+      framesCounter = 0
+    end
+
+    if (lettersCount >= 10) then
+      alpha = alpha - 0.02
+
+      if (alpha <= 0.0) then
+        alpha = 0.0
+        state = 4
+      end
+    end
+  elseif (state == 4) then
+    if (rl.IsKeyPressed(rl.KEY_R)) then
+      framesCounter = 0
+      lettersCount = 0
+
+      topSideRecWidth = 16
+      leftSideRecHeight = 16
+
+      bottomSideRecWidth = 16
+      rightSideRecHeight = 16
+
+      alpha = 1.0
+      state = 0
+    end
+  end
+
+  rl.BeginDrawing()
+
+  rl.ClearBackground(rl.WHITE)
+
+  if (state == 0) then
+    if (math.floor(framesCounter/15)%2 == 1) then
+      rl.DrawRectangle(logoPositionX, logoPositionY, 16, 16, lua_color)
+    end
+  elseif (state == 1) then
+    rl.DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, lua_color)
+    rl.DrawRectangle(logoPositionX, logoPositionY, 16, leftSideRecHeight, lua_color)
+  elseif (state == 2) then
+    rl.DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, lua_color)
+    rl.DrawRectangle(logoPositionX, logoPositionY, 16, leftSideRecHeight, lua_color)
+
+    rl.DrawRectangle(logoPositionX + 240, logoPositionY, 16, rightSideRecHeight, lua_color)
+    rl.DrawRectangle(logoPositionX, logoPositionY + 240, bottomSideRecWidth, 16, lua_color)
+  elseif (state == 3) then
+    rl.DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, Fade(lua_color, alpha))
+    rl.DrawRectangle(logoPositionX, logoPositionY + 16, 16, leftSideRecHeight - 32, Fade(lua_color, alpha))
+
+    rl.DrawRectangle(logoPositionX + 240, logoPositionY + 16, 16, rightSideRecHeight - 32, Fade(lua_color, alpha))
+    rl.DrawRectangle(logoPositionX, logoPositionY + 240, bottomSideRecWidth, 16, Fade(lua_color, alpha))
+
+    rl.DrawRectangle(screenWidth/2 - 112, screenHeight/2 - 112, 224, 224, Fade(rl.RAYWHITE, alpha))
+
+    rl.DrawText(string.sub("raylib", 0, lettersCount), screenWidth/2 - 44, screenHeight/2 + 24, 50, Fade(lua_color, alpha))
+    rl.DrawText(string.sub("Lua", 0, math.max(0, lettersCount - 3)), screenWidth/2 - 44, screenHeight/2 + 65, 50, Fade(lua_color, alpha))
+  elseif (state == 4) then
+    rl.DrawText("[R] REPLAY", 340, 200, 20, rl.GRAY)
+  end
+
+  rl.EndDrawing()
+end
+
+rl.CloseWindow()