From 04d9b35c363be2450b0ea44914e49b49668dff57 Mon Sep 17 00:00:00 2001
From: D2A62006 <david06.bruenner@gmail.com>
Date: Wed, 26 Nov 2025 18:04:17 +0100
Subject: [PATCH] Refractor Matrix add

---
 matrix.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/matrix.c b/matrix.c
index aca5f9f..477d480 100644
--- a/matrix.c
+++ b/matrix.c
@@ -101,6 +101,7 @@ MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int co
     else return 0;
 }
 
+/*
 Matrix add(const Matrix matrix1, const Matrix matrix2)
 {
     //check if the matrices are able to be added (same size)
@@ -126,7 +127,36 @@ Matrix add(const Matrix matrix1, const Matrix matrix2)
     }
 
 }
+*/
 
+Matrix add(const Matrix matrix1, const Matrix matrix2)
+{
+    //check if the matrices are able to be added (same size)
+    if (matrix1.cols != matrix2.cols && matrix1.rows != matrix2.rows){
+        Matrix m = {NULL, 0, 0};
+        return m;
+    }
+        
+
+    //size of the matrices should be the same, if the addition is supposed to happen
+    // Matrix outputMatrix = createMatrix(matrix1.rows, matrix1.cols);
+    Matrix outputMatrix = createMatrix(matrix1.rows, matrix1.cols);
+
+    if(!outputMatrix.buffer){
+        Matrix m = {NULL, 0, 0};
+        return m;
+    }
+
+    for (int i = 0; i < matrix1.rows;i++) {
+        for (int j = 0; j < matrix1.cols; j++) {
+            // how this should work in normal Matrix version:
+            // outputmatrix.buffer[i][j] = matrix1.buffer[i][j] + matrix2.buffer[i][j];
+            outputMatrix.buffer[i * outputMatrix.cols + j] = matrix1.buffer[i * matrix1.cols + j] + matrix2.buffer[i * matrix2.cols + j];
+        }
+    }
+    return outputMatrix;
+
+}
 
 /*
 Matrix multiply(const Matrix matrix1, const Matrix matrix2)