From 60ae492b0f089d49cd53746dba0d3dc94c034dcf Mon Sep 17 00:00:00 2001
From: jonathan santis <jonathan.wyss@santismail.ch>
Date: Fri, 25 Oct 2024 13:11:22 +0200
Subject: [PATCH] fix utf8 encoding background

---
 main.zig | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/main.zig b/main.zig
index 2cb7ce6..7361f30 100644
--- a/main.zig
+++ b/main.zig
@@ -126,7 +126,10 @@ fn fillBuffer() !void {
 
     var w = Winsize{};
     var i: u64 = 0;
+    var ii: u64 = 0;
     var buf = std.mem.zeroes([2]u8);
+    var slice: []u8 = undefined;
+    var bytes_written: u3 = 0;
 
     buf[0] = 0;
     w = try getTermDimension();
@@ -147,15 +150,18 @@ fn fillBuffer() !void {
         .c = Point{ .x = 30, .y = 1, .z = 0, .direction = .{ .x = 1, .y = 1, .z = 1 } },
     };
 
+    //clear buffer
     while (true) {
         buffer[0] = 0;
         i = 0;
         while (i < buffer.len) : (i += 4) {
-            const slice = buffer[i .. i + 4];
-            _ = try std.unicode.utf8Encode('_', slice);
-            //slice[0] = 'm';
+            slice = buffer[i .. i + 4];
+            bytes_written = try std.unicode.utf8Encode(' ', slice);
+            ii = 0;
+            while ((bytes_written + ii) < 4) : (ii += 1) {
+                slice[bytes_written + ii] = 0;
+            }
         }
-        try pixel(buffer, w, 5, 10, '\u{1F702}');
         try triangle(buffer, w, vec);
         //_ = try bresenham(buffer, w, Point{ .x = 10, .y = 10, .z = 0 }, Point{ .x = 30, .y = 12, .z = 0 });
 
@@ -179,7 +185,7 @@ fn fillBuffer() !void {
         bounce(w, &vec2.c, 'x');
         bounce(w, &vec2.c, 'y');
         try out.print("{s}", .{buffer});
-        sleep(1000000);
+        sleep(10000000);
         //_ = try stdin.readUntilDelimiterOrEof(&buf, '\n');
     }
 }