From ea02c1f4c1e534e3df35b563eef4f8ee3b256253 Mon Sep 17 00:00:00 2001
From: lonkaars <loek@pipeframe.xyz>
Date: Tue, 26 Apr 2022 16:35:00 +0200
Subject: clang format indent switch case + serial demo app

---
 .clang-format |  2 +-
 readme.md     |  1 +
 robot/main.c  | 34 ++++++++++++++++++++++++----------
 3 files changed, 26 insertions(+), 11 deletions(-)

diff --git a/.clang-format b/.clang-format
index 03e38c9..c7d6b0a 100644
--- a/.clang-format
+++ b/.clang-format
@@ -8,7 +8,7 @@ Language: Cpp
 Standard: Cpp11
 TabWidth: '4'
 UseTab: Always
-
+IndentCaseLabels: true
 ...
 
 # vim: ft=yaml
diff --git a/readme.md b/readme.md
index 2bcadb8..c7d266f 100644
--- a/readme.md
+++ b/readme.md
@@ -106,3 +106,4 @@ gewoon aan mij (loek) vragen.
 nu ben je klaar om aan het project te werken! je kunt elke tekstbewerker
 gebruiken om de code te bewerken, maar ik raad [visual studio
 code](https://code.visualstudio.com) aan als je geen voorkeur hebt.
+
diff --git a/robot/main.c b/robot/main.c
index dfc8d68..21d0e5c 100644
--- a/robot/main.c
+++ b/robot/main.c
@@ -1,19 +1,33 @@
 #include <pololu/orangutan.h>
+#include <stdlib.h>
 
 int main() {
-	print("Hello!");
-	play("L16 ceg>c");
+	play("L50 c>c");
+	serial_set_baud_rate(9600);
 
-	while (1) {
-		red_led(0);
-		green_led(1);
-
-		delay_ms(100);
+	char *buf = malloc(20);
+	unsigned int counter = 0;
 
-		red_led(1);
-		green_led(0);
+	while (1) {
+		serial_receive_blocking(buf, 1, 65e3);
 
-		delay_ms(100);
+		switch (buf[0]) {
+			case 0x7f: {
+				counter--;
+				lcd_goto_xy(counter, 0);
+				print(" ");
+				lcd_goto_xy(counter, 0);
+				break;
+			}
+			default: {
+				print(&buf[0]);
+				counter++;
+				if (counter > 20) {
+					counter = 0;
+					lcd_goto_xy(0, 0);
+				}
+			}
+		}
 	}
 
 	return 0;
-- 
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