refactor: Batch2D and Batch3D

src/graphics/core/Batch2D.cpp

@@ -13,19 +13,18 @@ Batch2D::Batch2D(size_t capacity) : capacity(capacity), color(1.0f){
         {2}, {2}, {4}, {0}
     };
 
-    buffer = new float[capacity * B2D_VERTEX_SIZE];
-    mesh = std::make_unique<Mesh>(buffer, 0, attrs);
+    buffer = std::make_unique<float[]>(capacity * B2D_VERTEX_SIZE);
+    mesh = std::make_unique<Mesh>(buffer.get(), 0, attrs);
     index = 0;
 
     ubyte pixels[] = {
         0xFF, 0xFF, 0xFF, 0xFF
     };
     blank = std::make_unique<Texture>(pixels, 1, 1, ImageFormat::rgba8888);
-    _texture = nullptr;
+    currentTexture = nullptr;
 }
 
 Batch2D::~Batch2D(){
-    delete[] buffer;
 }
 
 void Batch2D::setPrimitive(DrawPrimitive primitive) {
@@ -37,7 +36,7 @@ void Batch2D::setPrimitive(DrawPrimitive primitive) {
 }
 
 void Batch2D::begin(){
-    _texture = nullptr;
+    currentTexture = nullptr;
     blank->bind();
     color = glm::vec4(1.0f);
     primitive = DrawPrimitive::triangle;
@@ -73,14 +72,16 @@ void Batch2D::vertex(
 }
 
 void Batch2D::texture(Texture* new_texture){
-    if (_texture == new_texture)
+    if (currentTexture == new_texture) {
         return;
+    }
     flush();
-    _texture = new_texture;
-    if (new_texture == nullptr)
+    currentTexture = new_texture;
+    if (new_texture == nullptr) {
         blank->bind();
-    else
+    } else {
         new_texture->bind();
+    }
 }
 
 void Batch2D::untexture() {
@@ -327,7 +328,7 @@ void Batch2D::sprite(float x, float y, float w, float h, int atlasRes, int index
 void Batch2D::flush() {
     if (index == 0)
         return;
-    mesh->reload(buffer, index / B2D_VERTEX_SIZE);
+    mesh->reload(buffer.get(), index / B2D_VERTEX_SIZE);
     mesh->draw(gl::to_glenum(primitive));
     index = 0;
 }