From ea73eef3149d47f5b88eda0c71b48f84031e5aef Mon Sep 17 00:00:00 2001
From: Lukian <lulul7018@gmail.com>
Date: Thu, 23 Jan 2025 14:15:44 +0100
Subject: [PATCH] Add autorun and screen management functionality

---
 autorun.lua |  1 +
 main.lua    |  4 +++
 screen.lua  | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 78 insertions(+)
 create mode 100644 autorun.lua
 create mode 100644 main.lua
 create mode 100644 screen.lua

diff --git a/autorun.lua b/autorun.lua
new file mode 100644
index 0000000..20ffb90
--- /dev/null
+++ b/autorun.lua
@@ -0,0 +1 @@
+dofile("main.lua")
\ No newline at end of file
diff --git a/main.lua b/main.lua
new file mode 100644
index 0000000..8f24e06
--- /dev/null
+++ b/main.lua
@@ -0,0 +1,4 @@
+dofile("screen.lua")
+
+-- connecte l'écran sur les pins 18 et 19
+attachscreen(18, 19, 0x3C)
diff --git a/screen.lua b/screen.lua
new file mode 100644
index 0000000..a127a76
--- /dev/null
+++ b/screen.lua
@@ -0,0 +1,73 @@
+function attachscreen(sda, scl, i2cadd)
+    try (
+        function ()
+            i2c.setpins(0,sda,scl)
+            gdisplay.attach(gdisplay.SSD1306_128_64, gdisplay.LANDSCAPE, false, i2cadd)
+            gdisplay.clear()
+            gdisplay.setfont(gdisplay.FONT_LCD)
+            gdisplay.setwrap(false)
+        end,
+
+        function (where, line, error, message)
+            print("Couldn't attach the screen.\nError in "..where.." at "..line.." "..error..": "..message)
+        end,
+
+        function () end
+    )    
+end
+
+local consolepos = 0
+local consoletab = {}
+local consolemax = 6
+local oledflip = 1
+
+function flip()
+    oledflip = oledflip+1; if oledflip > 3 then oledflip = 0 end
+    if oledflip==0 then
+        consolemax = 6
+        gdisplay.attach(gdisplay.SSD1306_128_64, gdisplay.LANDSCAPE_FLIP, false, i2cadd)
+    elseif oledflip==1 then
+        consolemax = 6
+        gdisplay.attach(gdisplay.SSD1306_128_64, gdisplay.LANDSCAPE, false, i2cadd)
+    elseif oledflip==2 then
+        consolemax = 13
+        gdisplay.attach(gdisplay.SSD1306_128_64, gdisplay.PORTRAIT, false, i2cadd)
+    else
+        consolemax = 13
+        gdisplay.attach(gdisplay.SSD1306_128_64, gdisplay.PORTRAIT_FLIP, false, i2cadd)
+    end    
+    cls()
+end
+
+function cls() 
+    if (consolemax==6) then gdisplay.clear()
+    else 
+        gdisplay.rect( {0,0}, 128, 9*consolemax, {0,0,0}, {0,0,0} )
+    end
+    if oledflip ~= 1 then gdisplay.clear() end
+    consolepos = 0
+    consoletab={}
+    for i=0, consolemax do
+         consoletab[i] = ""
+    end
+end
+
+function console(msg) 
+    if (consolepos <= consolemax) then
+        consoletab[consolepos] = msg
+        gdisplay.write({0, consolepos*9},msg)
+        consolepos = consolepos+1
+    else
+        for i = 1, consolemax do
+            consoletab[i-1] = consoletab[i]
+        end
+        consoletab[consolemax] = msg
+        if (consolemax==6) then gdisplay.clear()
+        else 
+            gdisplay.rect( {0,0}, 128, 9*consolemax+9, {0,0,0}, {0,0,0} )
+        end
+        for i=0, consolemax do
+            gdisplay.write({0, i*9},consoletab[i])
+        end
+    end
+end