From eec14bc99ce71798b4482381d0c3a843fc99ced1 Mon Sep 17 00:00:00 2001
From: KikooDX <kikoodx@paranoici.org>
Date: Fri, 26 Feb 2021 01:03:41 +0100
Subject: [PATCH] Input system more DRY, add Tab (`\t`) support.

---
 level.kble   | Bin 0 -> 518 bytes
 src/main.zig |  30 ++++++++++++++----------------
 2 files changed, 14 insertions(+), 16 deletions(-)
 create mode 100644 level.kble

diff --git a/level.kble b/level.kble
new file mode 100644
index 0000000000000000000000000000000000000000..7874dc194046c3e7a335e41e983e79f66ec45bf2
GIT binary patch
literal 518
zcmd6hi4A}-3<Cobu>Z8hvaU{m0Z61O?m17Lb=~=&I4b$PN~FhIL*wgJuW{C%85*XF
kE#_aYPE@1uqCHLTjLF%D2hB9*`!Z<mbf5my(f>>aTWrt(TL1t6

literal 0
HcmV?d00001

diff --git a/src/main.zig b/src/main.zig
index 7701285..747277e 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -24,6 +24,7 @@ const ActionCat = actions.ActionCat;
 const Mode = @import("modes.zig").Mode;
 
 const char_range = 255;
+const input_buffer_len = 255;
 
 pub fn main() void {
     const level_path: [*:0]const u8 = if (std.os.argv.len > 1)
@@ -120,7 +121,6 @@ pub fn main() void {
     }
 
     // Create input buffer.
-    const input_buffer_len = 255;
     var input_buffer: [input_buffer_len]u32 = undefined;
     comptime {
         var i: u8 = 0;
@@ -132,28 +132,18 @@ pub fn main() void {
 
     while (!ray.WindowShouldClose()) {
         {
-            // TODO: apply DRY
             // Get keyboard input.
             var key = ray.GetCharPressed();
             // Check if more characters have been pressed.
             while (key != 0) {
-                // Add key to buffer.
-                input_buffer[input_cursor] = @intCast(u32, key);
-                input_cursor += 1;
-                // Avoid writing out of memory.
-                if (input_cursor >= input_buffer_len)
-                    input_cursor = input_buffer_len - 1;
-
+                add_key_to_buffer(&input_buffer, &input_cursor, key);
                 key = ray.GetCharPressed();
             }
             // Check for special keys, not detected by GetCharPressed.
-            if (ray.IsKeyDown(ray.KEY_ENTER)) {
-                input_buffer[input_cursor] = '\n';
-                input_cursor += 1;
-                // Avoid writing out of memory.
-                if (input_cursor >= input_buffer_len)
-                    input_cursor = input_buffer_len - 1;
-            }
+            if (ray.IsKeyPressed(ray.KEY_ENTER))
+                add_key_to_buffer(&input_buffer, &input_cursor, '\n');
+            if (ray.IsKeyPressed(ray.KEY_TAB))
+                add_key_to_buffer(&input_buffer, &input_cursor, '\t');
         }
 
         // Process buffer content.
@@ -274,3 +264,11 @@ pub fn main() void {
             mouse.draw(scale, camera);
     }
 }
+
+fn add_key_to_buffer(input_buffer: *[input_buffer_len]u32, input_cursor: *u8, key: c_int) void {
+    input_buffer[input_cursor.*] = @intCast(u32, key);
+    input_cursor.* += 1;
+    // Avoid writing out of memory.
+    if (input_cursor.* >= input_buffer_len)
+        input_cursor.* = input_buffer_len - 1;
+}