thing

halyde/lib/raster.lua

@@ -1,10 +1,6 @@
 function drawPixel(x, y, bg, fg)
-    mergePixels(x, y, bg, fg)
-end
-
-function mergePixels(x, y, bg, fg)
     -- get original character for "merging"
-    local original = gpu.get(x, y)[0]
+    local char = gpu.get(x, y)[0]
     if bg ~= nil then gpu.setBackground(bg) end
     if fg ~= nil then gpu.setForeground(fg) end
     -- convert from braille to char code
@@ -13,9 +9,15 @@ function mergePixels(x, y, bg, fg)
     -- 2 5 -> 3 4
     -- 3 6    5 6
     -- 7 8    7 8 using complicate bit thingery
+    -- example would be 171 should be converted to 157
+    -- or a more simple one: 16 to 4
     -- bitwise or
     -- unconvert
     -- print the thing
+    char = string.byte(char)
+    ocelot.log(char)
+    char = formByte({getBit(char, 0), getBit(char, 2), getBit(char, 4), getBit(char, 1), getBit(char, 3), getBit(char, 5), getBit(char, 6), getBit(char, 7)})
+    ocelot.log(char)
 end
 
 function XY2Braille(x, y)
@@ -23,4 +25,14 @@ function XY2Braille(x, y)
 end
 function Braille2XY(x, y)
     return math.floor(x*2), math.floor(y*4)
+end
+function getBit(a, which) 
+    return 1 == ((a >> which) & 1);
+end
+function formByte(a)
+    local x = 0
+    for i = 1, 8 do
+        x = x+(a[i]<<i)
+    end
+    return x
 end