From 65dcd66f76074be8f977ca5cd08ee61d5fc03e30 Mon Sep 17 00:00:00 2001
From: Abdelrahman <said.abdelrahman89@gmail.com>
Date: Sat, 22 Jun 2024 20:41:57 +0100
Subject: [PATCH] Add line_t struct and update draw_line function

---
 include/rasteriser/rasteriser.h |  7 ++++++-
 src/rasteriser/rasteriser.c     | 15 ++++++++-------
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/include/rasteriser/rasteriser.h b/include/rasteriser/rasteriser.h
index 7c6a071..7287fed 100644
--- a/include/rasteriser/rasteriser.h
+++ b/include/rasteriser/rasteriser.h
@@ -4,6 +4,11 @@
 #include "vector/vec.h"
 #include "window/window.h"
 
-void draw_line(window_t *wnd, vec2i_t p0, vec2i_t p1, colour_t colour);
+typedef struct {
+  vec2i_t p0;
+  vec2i_t p1;
+} line_t;
+
+void draw_line(window_t *wnd, line_t line, colour_t colour);
 
 #endif // !RASTERISER_H
diff --git a/src/rasteriser/rasteriser.c b/src/rasteriser/rasteriser.c
index acfe74b..b1041ae 100644
--- a/src/rasteriser/rasteriser.c
+++ b/src/rasteriser/rasteriser.c
@@ -1,16 +1,17 @@
+#include "rasteriser/rasteriser.h"
 #include "c_cpp_aliases/aliases.h"
 #include "vector/vec.h"
 #include "window/window.h"
 
-void draw_line(window_t *wnd, vec2i_t p0, vec2i_t p1, colour_t colour) {
-  if (p1.x < p0.x) {
-    vec_swap(vec2i_t, p0, p1);
+void draw_line(window_t *wnd, line_t line, colour_t colour) {
+  if (line.p1.x < line.p0.x) {
+    vec_swap(vec2i_t, line.p0, line.p1);
   }
 
-  i32 x0 = p0.x;
-  i32 y0 = p0.y;
-  i32 x1 = p1.x;
-  i32 y1 = p1.y;
+  i32 x0 = line.p0.x;
+  i32 y0 = line.p0.y;
+  i32 x1 = line.p1.x;
+  i32 y1 = line.p1.y;
 
   f32 a = ((f32)y1 - y0) / ((f32)x1 - x0);
   f32 y = y0;