Initial upload

source/Triangle.c

@@ -0,0 +1,61 @@
+#include "Triangle.h"
+
+triangle_collection_t triangle_collection_create(size_t size)
+{
+    if (size > UINT64_MAX)
+    {
+        size = UINT64_MAX;
+    }
+
+    triangle_collection_t collection = {0};
+    collection.buffer = (triangle_t*)malloc(size * sizeof(triangle_t));
+    collection.size = (uint64_t)size;
+    return collection;
+}
+
+void triangle_collection_resize(triangle_collection_t* collection, size_t size)
+{
+    if (size > UINT64_MAX)
+    {
+        size = UINT64_MAX;
+    }
+
+    triangle_t* temp = realloc(collection->buffer, size * sizeof(triangle_t));
+    if (temp != NULL)
+    {
+        collection->buffer = temp;
+        collection->size = (uint64_t)size;
+    }
+}
+
+void triangle_collection_free(triangle_collection_t* collection)
+{
+    if (collection->buffer != NULL)
+    {
+        free(collection->buffer);
+        collection->buffer = NULL;
+    }
+}
+
+void triangle_create(vec3s point1, vec3s point2, vec3s point3, uint8_t material_id, triangle_collection_t* collection)
+{
+    if (collection->count >= collection->size)
+    {
+        triangle_collection_resize(collection, collection->size * 2);
+    }
+
+    triangle_t new_triangle;
+    new_triangle.point1 = point1;
+    new_triangle.point2 = point2;
+    new_triangle.point3 = point3;
+    new_triangle.material_id = material_id;
+
+    vec3s edge1 = glms_vec3_sub(point2, point1);
+    vec3s edge2 = glms_vec3_sub(point3, point1);
+    new_triangle.normal = glms_vec3_normalize(glms_vec3_cross(edge1, edge2));
+
+    collection->buffer[collection->count] = new_triangle;
+    collection->count++;
+}
+
+