From b912d3d9409aab2954cd30db2c7a2bb7e6e896d4 Mon Sep 17 00:00:00 2001
From: glenda <glenda@r51>
Date: Fri, 1 Jan 1988 06:08:06 +0000
Subject: [PATCH] little basic programs!

---
 maze.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 mkfile | 13 +++++++++++++
 pong.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 109 insertions(+)
 create mode 100644 maze.c
 create mode 100644 mkfile
 create mode 100644 pong.c

diff --git a/maze.c b/maze.c
new file mode 100644
index 0000000000000000000000000000000000000000..b43a2ff5299b8599d146d6010b4783baa851343f
--- /dev/null
+++ b/maze.c
@@ -0,0 +1,46 @@
+#include <u.h>
+#include <libc.h>
+#include <stdio.h>
+
+// FIXME: assumes vga font
+int
+getcols(void)
+{
+	int x1, y1, x2, y2;
+	FILE* fp;
+
+	fp = fopen("/dev/wctl", "r");
+
+	fscanf(fp, "%d %d %d %d", &x1, &y1, &x2, &y2);
+
+	fclose(fp);
+
+	return (x2 - x1) / 8 / 2 * 2 - 4;
+}
+
+void
+main(void)
+{
+	while(1)
+	{
+		int cols = getcols();
+		char* outbuf1 = calloc(cols + 1, 1);
+		char* outbuf2 = calloc(cols + 1, 1);
+		for (int i = 0; i < (cols / 2); i ++)
+		{
+			if (rand() % 2)
+			{
+				strcat(outbuf1, " /");
+				strcat(outbuf2, "/ ");
+			}
+			else
+			{
+				strcat(outbuf1, "\\ ");
+				strcat(outbuf2, " \\");
+			}
+		}
+		print("%s\n%s\n", outbuf1, outbuf2);
+		free(outbuf1);
+		free(outbuf2);
+	}
+}
diff --git a/mkfile b/mkfile
new file mode 100644
index 0000000000000000000000000000000000000000..cb2c93dc4e13254c685a8032a37e62cab04765a7
--- /dev/null
+++ b/mkfile
@@ -0,0 +1,13 @@
+</$objtype/mkfile
+
+bins=\
+	pong\
+	maze
+
+all:VQ: $bins
+
+%: %.$O
+	$LD $LDFLAGS -o $stem $stem.$O
+
+%.$O: %.c
+	$CC $CFLAGS -o $stem.$O $stem.c
diff --git a/pong.c b/pong.c
new file mode 100644
index 0000000000000000000000000000000000000000..1de2d503b7c491d5cdd46925bc581de486c420d3
--- /dev/null
+++ b/pong.c
@@ -0,0 +1,50 @@
+#include <u.h>
+#include <libc.h>
+
+int score1, score2;
+
+void
+usage(void)
+{
+	fprint(2,"usage: %s [-p points]\n", argv0);
+	exits("usage");	
+}
+
+void
+do_round(void)
+{
+	
+}
+
+void
+main(int argc, char* argv[])
+{
+	int playto = 10;
+
+	ARGBEGIN{
+	case 'p':
+		playto = atoi(EARGF(usage()));
+		if (playto == 0)
+			usage();
+		break;
+	default:
+		usage();
+		break;
+	} ARGEND
+	
+	if (argv[0])
+		usage();
+	
+	print("playing to %d points\n", playto);
+	
+	score1 = 0;
+	score2 = 0;
+	
+	while (score1 < playto && score2 < playto)
+		do_round();
+	
+	if (score1 > score2)
+		print("Player 1 wins!\n");
+	else
+		print("Player 2 wins!\n");
+}