From 84e0a87ba408b076c397af2db4b59ace444304cc Mon Sep 17 00:00:00 2001
From: devZoGok <nenkokeko@yandex.com>
Date: Wed, 4 Jan 2023 11:14:52 +0200
Subject: [PATCH] method to update vertices

---
 mesh.cpp | 8 +++++++-
 mesh.h   | 3 ++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/mesh.cpp b/mesh.cpp
index 3d7493b..46ff1d6 100755
--- a/mesh.cpp
+++ b/mesh.cpp
@@ -73,6 +73,7 @@ namespace vb01{
 		glBindFramebuffer(GL_FRAMEBUFFER, *Root::getSingleton()->getFBO());
 	}
 
+	//TODO allow to init meshes to be drawn statically or dynamically
 	void Mesh::initMesh(){
 		glGenVertexArrays(1, &VAO);
 		glGenBuffers(1, &VBO);
@@ -82,7 +83,7 @@ namespace vb01{
 
 		glBindVertexArray(VAO);
 		glBindBuffer(GL_ARRAY_BUFFER, VBO);
-		glBufferData(GL_ARRAY_BUFFER, 3 * meshBase.numTris * size, meshBase.vertices, GL_STATIC_DRAW);
+		glBufferData(GL_ARRAY_BUFFER, 3 * meshBase.numTris * size, meshBase.vertices, GL_DYNAMIC_DRAW);
 		glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
 		glBufferData(GL_ELEMENT_ARRAY_BUFFER, 3 * meshBase.numTris * sizeof(u32), meshBase.indices, GL_STATIC_DRAW);
 
@@ -107,6 +108,11 @@ namespace vb01{
 		}
 	}
 
+	void Mesh::updateVerts(MeshData meshData){
+		glBindBuffer(GL_ARRAY_BUFFER, VBO);
+		glBufferSubData(GL_ARRAY_BUFFER, 0, 3 * sizeof(MeshData::Vertex) * meshBase.numTris, meshData.vertices);
+	}
+
 	void Mesh::update(){
 		Root *root = Root::getSingleton();
 		Camera *cam = root->getCamera();
diff --git a/mesh.h b/mesh.h
index 935fb8f..c73d7cd 100755
--- a/mesh.h
+++ b/mesh.h
@@ -21,9 +21,10 @@ namespace vb01{
 			Mesh(MeshData);
 			~Mesh();
 			void construct();
+			void updateVerts(MeshData);
 			virtual void update();
 			void render();
-			void setMaterial(Material *mat){this->material = mat;}
+			inline void setMaterial(Material *mat){this->material = mat;}
 			inline void setCastShadow(bool castShadow){this->castShadow = castShadow;}
 			inline void setReflect(bool r){this->reflect = r;}
 			inline void setReflective(bool r){this->reflective = r;}