1 files changed, 44 insertions, 0 deletions
diff --git a/Project/VertexArray.cpp b/Project/VertexArray.cpp
new file mode 100644
index 0000000..2ae8725
--- /dev/null
+++ b/Project/VertexArray.cpp
@@ -0,0 +1,44 @@
+#include "VertexArray.h"
+#include "Renderer.h"
+#include "VertexBufferLayout.h"
+
+VertexArray::VertexArray()
+{
+    GLCall(glGenVertexArrays(1, &m_rendererID));
+}
+
+VertexArray::~VertexArray()
+{
+    GLCall(glDeleteVertexArrays(1, &m_rendererID));
+}
+
+void VertexArray::AddBuffer(const VertexBuffer& vb, const VertexBufferLayout& layout)
+{
+    Bind();
+    vb.Bind();
+    const auto& elements = layout.GetElements();
+    unsigned int offset = 0;
+    for (unsigned int i = 0; i < elements.size(); ++i) {
+        const auto& element = elements[i];
+        GLCall(glEnableVertexAttribArray(i));
+        GLCall(glVertexAttribPointer(i, element.count, element.type, element.normalized, layout.GetStride(), (const void*)offset));
+        offset += element.count * VertexBufferElement::GetSizeOfType(element.type);
+    }
+}
+
+void VertexArray::UpdateBuffer(const VertexBuffer& vb, const void* newVBData, const unsigned int& newVBSize)
+{
+    Bind();
+    vb.Bind();
+    vb.SetSubData(newVBData, newVBSize);
+}
+
+void VertexArray::Bind() const
+{
+    GLCall(glBindVertexArray(m_rendererID));
+}
+
+void VertexArray::Unbind() const
+{
+    GLCall(glBindVertexArray(0));
+}