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/*
* Copyright 2022 Frederico de Oliveira Linhares
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "instance.hpp"
#include "../model.hpp"
#include "../vk/model_instance.hpp"
// This variable works as a constant
static mrb_sym id_at_model;
void
cg_free_model_instance(mrb_state *mrb, void* obj)
{
auto ptr = static_cast<VK::ModelInstance*>(obj);
mrb_free(mrb, ptr);
}
const struct mrb_data_type cg_model_instance_type = {
"CG_Model_Instance", cg_free_model_instance };
static mrb_value
cg_cModel_cInstance_initialize(mrb_state *mrb, mrb_value self)
{
mrb_float position_x, position_y, position_z,
rotation_x, rotation_y, rotation_z;
mrb_value model;
VK::ModelInstance *ptr;
mrb_get_args(
mrb, "offffff",
&model,
&position_x, &position_y, &position_z,
&rotation_x, &rotation_y, &rotation_z);
ptr = (VK::ModelInstance*)DATA_PTR(self);
if(ptr) mrb_free(mrb, ptr);
ptr = (VK::ModelInstance*)mrb_malloc(mrb, sizeof(VK::ModelInstance));
mrb_iv_set(mrb, self, id_at_model, model);
ptr->position = glm::vec3(position_x, position_y, position_z);
ptr->rotation = glm::vec3(rotation_x, rotation_y, rotation_z);
mrb_data_init(self, ptr, &cg_model_instance_type);
return self;
}
static mrb_value
cg_cModel_cInstance_draw(mrb_state *mrb, mrb_value self)
{
mrb_value model_v;
VK::ModelInstance *ptr;
std::shared_ptr<VK::Model> *model_ptr;
model_v = mrb_iv_get(mrb, self, id_at_model);
ptr = (VK::ModelInstance*)DATA_PTR(self);
model_ptr = (std::shared_ptr<VK::Model>*) DATA_PTR(model_v);
auto &instances =
cg_core.vk_graphics_pipeline->models_to_draw[
cg_core.vk_graphics_pipeline->current_frame][*model_ptr];
instances.push_back(*ptr);
return self;
}
void
cg_model_instance_init(mrb_state *mrb)
{
struct RClass *cg_m, *cg_cModel, *cg_cInstance;
id_at_model = mrb_intern_cstr(mrb, "@model");
cg_m = mrb_module_get(mrb, "CandyGear");
cg_cModel = mrb_class_get_under(mrb, cg_m, "Model");
cg_cInstance = mrb_define_class_under(
mrb, cg_cModel, "Instance", mrb->object_class);
MRB_SET_INSTANCE_TT(cg_cInstance, MRB_TT_DATA);
mrb_define_method(
mrb, cg_cInstance, "initialize", cg_cModel_cInstance_initialize,
MRB_ARGS_REQ(7));
mrb_define_method(
mrb, cg_cInstance, "draw", cg_cModel_cInstance_draw, MRB_ARGS_NONE());
}
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