From 00cc8736f10098dedf6b856b9ad8bd0094211263 Mon Sep 17 00:00:00 2001
From: Benji Dial <benji6283@gmail.com>
Date: Thu, 18 Feb 2021 11:56:08 -0500
Subject: vbe support, truecolor window manager pixbufs

---
 src/user/highway/vars.c | 44 +++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 39 insertions(+), 5 deletions(-)

(limited to 'src/user/highway/vars.c')

diff --git a/src/user/highway/vars.c b/src/user/highway/vars.c
index ed9fa3a..2d53c3a 100644
--- a/src/user/highway/vars.c
+++ b/src/user/highway/vars.c
@@ -84,7 +84,7 @@ void dump_vars() {
 }
 
 static const char hex_digits[] = "0123456789abcdef";
-static char color[] = {'1', '0', '.', '.'};
+static char color[12] = "000000......";
 
 static const struct no_null_sn color_name = {
   .data = "_color",
@@ -93,12 +93,46 @@ static const struct no_null_sn color_name = {
 
 static const struct no_null_sn color_value = {
   .data = color,
-  .length = 4
+  .length = 12
 };
 
 void new_color() {
-  const uint8_t bg = gen_rand() % 0x30 + 0x38;
-  color[2] = hex_digits[bg >> 4];
-  color[3] = hex_digits[bg & 0xf];
+  const uint16_t hue = gen_rand() % (0x33 * 6);
+  _pixel_t bg = {.r = 0xff, .g = 0xcc, .b = 0xcc};
+  if (hue <= 0x33) {
+    bg.b += hue;
+    goto got_bg;
+  }
+  bg.b += 0x33;
+  if (hue <= 0x33 * 2) {
+    bg.r -= hue - 0x33;
+    goto got_bg;
+  }
+  bg.r -= 0x33;
+  if (hue <= 0x33 * 3) {
+    bg.g += hue - 0x33 * 2;
+    goto got_bg;
+  }
+  bg.g += 0x33;
+  if (hue <= 0x33 * 4) {
+    bg.b -= hue - 0x33 * 3;
+    goto got_bg;
+  }
+  bg.b -= 0x33;
+  if (hue <= 0x33 * 5) {
+    bg.r += hue - 0x33 * 4;
+    goto got_bg;
+  }
+  bg.r += 0x33;
+  bg.g -= hue - 0x33 * 5;
+
+got_bg:
+  color[ 6] = hex_digits[bg.r / 16];
+  color[ 7] = hex_digits[bg.r % 16];
+  color[ 8] = hex_digits[bg.g / 16];
+  color[ 9] = hex_digits[bg.g % 16];
+  color[10] = hex_digits[bg.b / 16];
+  color[11] = hex_digits[bg.b % 16];
+
   set_var(color_name, color_value);
 }
\ No newline at end of file
-- 
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