From 73a9a65ea27a094ad8316837bf56c8fa0447ce4f Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Sat, 4 Jun 2022 18:25:48 +0200
Subject: framebuffer: add battery icon / battery state indicator

---
 framebuffer.lua | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/framebuffer.lua b/framebuffer.lua
index 644aba1..754a2bb 100644
--- a/framebuffer.lua
+++ b/framebuffer.lua
@@ -55,4 +55,26 @@ function fb.print(font, str)
 	end
 end
 
+function fb.draw_battery_8(x, y, p)
+	fb.buf[y/8 + x*fb.h/8 + 1] = 0xff
+	for i = 1, 10 do
+		if p*2 >= i*15 then
+			fb.buf[y/8 + (x+i)*fb.h/8 + 1] = 0xff
+		else
+			fb.buf[y/8 + (x+i)*fb.h/8 + 1] = 0x81
+		end
+	end
+	if p*2 >= 11*15 then
+		fb.buf[y/8 + (x+11)*fb.h/8 + 1] = 0xff
+	else
+		fb.buf[y/8 + (x+11)*fb.h/8 + 1] = 0xe7
+	end
+	if p*2 >= 12*15 then
+		fb.buf[y/8 + (x+12)*fb.h/8 + 1] = 0x3c
+	else
+		fb.buf[y/8 + (x+12)*fb.h/8 + 1] = 0x24
+	end
+	fb.buf[y/8 + (x+13)*fb.h/8 + 1] = 0x3c
+end
+
 return fb
-- 
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