feat Make camera and model instance more abstract

* src/camera.cpp src/camera.hpp: Remove the camera as Vector3D and
Rotation3D are going to replace it.
* src/model.cpp: Add draw command as instances do not exist anymore.
* src/model/instance.cpp src/model/instance.hpp: Remove the instance as
Vector3D and Rotation3D are going to replace it.

1 files changed, 25 insertions, 0 deletions

diff --git a/src/model.cpp b/src/model.cpp
index 1a97c9b..06ddf65 100644
--- a/src/model.cpp
+++ b/src/model.cpp
@@ -16,7 +16,10 @@
 
 #include "model.hpp"
 
+#include "rotation3d.hpp"
 #include "texture.hpp"
+#include "vector3d.hpp"
+#include "vk/model_instance.hpp"
 
 void
 cg_free_model(mrb_state *mrb, void* obj)
@@ -54,6 +57,27 @@ cg_cModel_initialize(mrb_state *mrb, mrb_value self)
   return self;
 }
 
+static mrb_value
+cg_cModel_draw(mrb_state *mrb, mrb_value self)
+{
+  auto *ptr = (std::shared_ptr<VK::Model>*)DATA_PTR(self);
+  VK::ModelInstance instance;
+  std::shared_ptr<glm::vec3> *position;
+  std::shared_ptr<glm::vec3> *rotation;
+
+  mrb_get_args(
+    mrb, "dd", &position, &cg_vector3d_type, &rotation, &cg_rotation3d_type);
+  instance.position = **position;
+  instance.rotation = **rotation;
+
+  auto &instances =
+    cg_core.vk_graphics_pipeline->models_to_draw[
+      cg_core.vk_graphics_pipeline->current_frame][*ptr];
+  instances.push_back(instance);
+
+  return self;
+}
+
 void
 cg_model_init(mrb_state *mrb)
 {
@@ -64,4 +88,5 @@ cg_model_init(mrb_state *mrb)
   MRB_SET_INSTANCE_TT(cg_cModel, MRB_TT_DATA);
   mrb_define_method(
     mrb, cg_cModel, "initialize", cg_cModel_initialize, MRB_ARGS_REQ(2));
+  mrb_define_method(mrb, cg_cModel, "draw", cg_cModel_draw, MRB_ARGS_REQ(2));
 }