diff --git a/main.zig b/main.zig
index 781d9e6..72d45f4 100644
--- a/main.zig
+++ b/main.zig
@@ -7,6 +7,8 @@ const stdout = std.io.getStdOut();
 const out = stdout.writer();
 const stdin = std.io.getStdIn().reader();
 const sleep = std.time.sleep;
+const primitive = @import("primitives.zig");
+const Point = primitive.Point;
 
 const c = @cImport({
     @cDefine("_NO_CRT_STDIO_INLINE", "1");
@@ -20,27 +22,6 @@ const Winsize = struct {
     ws_xpixel: c_ushort = 0,
     ws_ypixel: c_ushort = 0,
 };
-const Direction = struct {
-    x: i8 = 1,
-    y: i8 = 1,
-    z: i8 = 1,
-};
-const Point = struct {
-    x: i32,
-    y: i32,
-    z: i32,
-    direction: Direction, //for movement state
-};
-const Vec3 = struct {
-    a: Point,
-    b: Point,
-    c: Point,
-};
-const Triangle = struct {
-    bufa: *i32,
-    bufb: *i32,
-    bufc: *i32,
-};
 
 pub fn main() !void {
     var win = Winsize{};
@@ -83,18 +64,6 @@ fn draw() !void {
 
     var buffer = try allocator.alloc(u8, buffer_size); //utf-8 can be 4 bytes long
     defer allocator.free(buffer);
-
-    var vec = Vec3{
-        .a = Point{ .x = 20, .y = 30, .z = 0, .direction = .{ .x = 1, .y = 1, .z = 1 } },
-        .b = Point{ .x = 50, .y = 40, .z = 0, .direction = .{ .x = 1, .y = 1, .z = 1 } },
-        .c = Point{ .x = 30, .y = 1, .z = 0, .direction = .{ .x = 1, .y = 1, .z = 1 } },
-    };
-    var vec2 = Vec3{
-        .a = Point{ .x = 20, .y = 20, .z = 0, .direction = .{ .x = 1, .y = 1, .z = 1 } },
-        .b = Point{ .x = 50, .y = 30, .z = 0, .direction = .{ .x = 1, .y = 1, .z = 1 } },
-        .c = Point{ .x = 30, .y = 1, .z = 0, .direction = .{ .x = 1, .y = 1, .z = 1 } },
-    };
-
     _ = try stdin.readUntilDelimiterOrEof(&buf, '\n');
     //video loop
     while (true) {
@@ -109,31 +78,31 @@ fn draw() !void {
                 slice[bytes_written + ii] = 0;
             }
         }
-        try triangle(buffer, w, vec);
+        try triangle(buffer, w, primitive.vec);
         //_ = try bresenham(buffer, w, Point{ .x = 10, .y = 10, .z = 0 }, Point{ .x = 30, .y = 12, .z = 0 });
 
         try out.print("\x1B[2J", .{});
         //sleep(100000);
 
-        try triangle(buffer, w, vec);
-        mv_axis_border_bounce(w, &vec.a, 'x');
-        mv_axis_border_bounce(w, &vec.a, 'y');
-        mv_axis_border_bounce(w, &vec.b, 'x');
-        mv_axis_border_bounce(w, &vec.b, 'y');
-        mv_axis_border_bounce(w, &vec.c, 'x');
-        mv_axis_border_bounce(w, &vec.c, 'y');
+        try triangle(buffer, w, primitive.vec);
+        mv_axis_border_bounce(w, &primitive.vec.a, 'x');
+        mv_axis_border_bounce(w, &primitive.vec.a, 'y');
+        mv_axis_border_bounce(w, &primitive.vec.b, 'x');
+        mv_axis_border_bounce(w, &primitive.vec.b, 'y');
+        mv_axis_border_bounce(w, &primitive.vec.c, 'x');
+        mv_axis_border_bounce(w, &primitive.vec.c, 'y');
 
-        try triangle(buffer, w, vec2);
-        mv_axis_border_bounce(w, &vec2.a, 'x');
-        mv_axis_border_bounce(w, &vec2.a, 'y');
-        mv_axis_border_bounce(w, &vec2.b, 'x');
-        mv_axis_border_bounce(w, &vec2.b, 'Y');
-        mv_axis_border_bounce(w, &vec2.c, 'x');
-        mv_axis_border_bounce(w, &vec2.c, 'y');
+        try triangle(buffer, w, primitive.vec2);
+        mv_axis_border_bounce(w, &primitive.vec2.a, 'x');
+        mv_axis_border_bounce(w, &primitive.vec2.a, 'y');
+        mv_axis_border_bounce(w, &primitive.vec2.b, 'x');
+        mv_axis_border_bounce(w, &primitive.vec2.b, 'Y');
+        mv_axis_border_bounce(w, &primitive.vec2.c, 'x');
+        mv_axis_border_bounce(w, &primitive.vec2.c, 'y');
 
         try fill_draw(w, buffer);
         try out.print("{s}", .{buffer});
-        _ = try stdin.readUntilDelimiterOrEof(&buf, '\n');
+        //_ = try stdin.readUntilDelimiterOrEof(&buf, '\n');
         sleep(30000000);
     }
 }
@@ -168,7 +137,7 @@ fn fill_draw(w: Winsize, buffer: []u8) !void {
                 }
             }
             if (ii > start and ii < end and fill == 1 and std.mem.eql(u8, utf_slice, &code) == false) {
-                _ = try std.unicode.utf8Encode('X', utf_slice);
+                _ = try std.unicode.utf8Encode('●', utf_slice);
             }
         }
     }
@@ -305,7 +274,7 @@ fn bresenham(buf: []u8, w: Winsize, p1: Point, p2: Point) !void {
     }
 }
 
-fn triangle(buffer: []u8, w: Winsize, vec: Vec3) !void {
+fn triangle(buffer: []u8, w: Winsize, vec: primitive.Vec3) !void {
     try bresenham(buffer, w, vec.a, vec.b);
     try bresenham(buffer, w, vec.b, vec.c);
     try bresenham(buffer, w, vec.c, vec.a);
diff --git a/primitives.zig b/primitives.zig
new file mode 100644
index 0000000..c1970f0
--- /dev/null
+++ b/primitives.zig
@@ -0,0 +1,31 @@
+pub const Direction = struct {
+    x: i8 = 1,
+    y: i8 = 1,
+    z: i8 = 1,
+};
+pub const Point = struct {
+    x: i32,
+    y: i32,
+    z: i32,
+    direction: Direction, //for movement state
+};
+pub const Vec3 = struct {
+    a: Point,
+    b: Point,
+    c: Point,
+};
+pub const Triangle = struct {
+    bufa: *i32,
+    bufb: *i32,
+    bufc: *i32,
+};
+pub var vec = Vec3{
+    .a = Point{ .x = 20, .y = 30, .z = 0, .direction = .{ .x = 1, .y = 1, .z = 1 } },
+    .b = Point{ .x = 50, .y = 40, .z = 0, .direction = .{ .x = 1, .y = 1, .z = 1 } },
+    .c = Point{ .x = 30, .y = 1, .z = 0, .direction = .{ .x = 1, .y = 1, .z = 1 } },
+};
+pub var vec2 = Vec3{
+    .a = Point{ .x = 20, .y = 20, .z = 0, .direction = .{ .x = 1, .y = 1, .z = 1 } },
+    .b = Point{ .x = 50, .y = 30, .z = 0, .direction = .{ .x = 1, .y = 1, .z = 1 } },
+    .c = Point{ .x = 30, .y = 1, .z = 0, .direction = .{ .x = 1, .y = 1, .z = 1 } },
+};