From b61717cf219351dfc1c8e2a41c43d11480136c6a Mon Sep 17 00:00:00 2001
From: Nathan Christopher McRae <me@nathanmcrae.name>
Date: Sun, 4 Jun 2023 15:19:51 -0700
Subject: [PATCH] Added columns

---
 src/main.zig | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/src/main.zig b/src/main.zig
index 9f9636b..c9d3b31 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -8,6 +8,7 @@ const assert = @import("std").debug.assert;
 pub fn main() !void {
     const window_width = 300;
     const window_height = 500;
+    const column_width = 100;
     
     if (c.SDL_Init(c.SDL_INIT_VIDEO) != 0) {
         c.SDL_Log("Unable to initialize SDL: %s", c.SDL_GetError());
@@ -70,15 +71,24 @@ pub fn main() !void {
         }
 
         var i:usize = 0;
+        var column:c_int = 0;
         x = 0;
         var y:c_int = 0;
+        // white: false, black: true
         var color:bool = false;
         while (i < source_code.len) : (i += 1) {
             if (source_code[i] == 10) {
-                x = 0;
                 y += 1;
+                if (y > window_height) {
+                    y = 0;
+                    column += 1;
+                    // std.debug.print("Column: {any}, x: {any}\n", .{column, column*column_width});
+                }
+                x = column * column_width;
                 continue;
             }
+
+
             if (source_code[i] == 32 and color) {
                 color = false;
                 const white_color_result = c.SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
@@ -96,10 +106,12 @@ pub fn main() !void {
                 }
             }
             
-            const draw_result = c.SDL_RenderDrawPoint(renderer, x, y);
-            if (draw_result != 0) {
-                c.SDL_Log("Unable to draw point: %d", draw_result);
-                return error.SDLDrawingFailed;
+            if (x < (column + 1) * column_width) {
+                const draw_result = c.SDL_RenderDrawPoint(renderer, x, y);
+                if (draw_result != 0) {
+                    c.SDL_Log("Unable to draw point: %d", draw_result);
+                    return error.SDLDrawingFailed;
+                }
             }
 
             x += 1;