C_Transform.cpp

#include "C_Transform.h"
#include "C_Camera.h"
#include "GameObject.h"


C_Transform::C_Transform(GameObject* gameobject, Component_Type type) : Component(type, gameobject)
{
	name = "Transform";
	ID = App->RandomNumberGenerator.GetIntRNInRange();
}

C_Transform::~C_Transform()
{
}


bool C_Transform::Enable()
{
	active = true;
	return true;
}

bool C_Transform::Start() {
	return true;
}

void C_Transform::Update()
{

	if (ImGui::CollapsingHeader(name.c_str()))
	{
		float3 last_position = vposition;
		ImGui::Text("Position:");
		ImGui::SameLine(); ImGui::PushItemWidth(60);  ImGui::PushID("pos"); ImGui::DragFloat("X", &vposition.x, 0.1f); ImGui::PopID(); ImGui::PopItemWidth();
		ImGui::SameLine(); ImGui::PushItemWidth(60);  ImGui::PushID("pos"); ImGui::DragFloat("Y", &vposition.y, 0.1f); ImGui::PopID(); ImGui::PopItemWidth();
		ImGui::SameLine(); ImGui::PushItemWidth(60);  ImGui::PushID("pos"); ImGui::DragFloat("Z", &vposition.z, 0.1f); ImGui::PopID(); ImGui::PopItemWidth();

		Quat last_rotation = vrotation;
		ImGui::Text("Rotation:");
		ImGui::SameLine(); ImGui::PushItemWidth(60); ImGui::PushID("rot"); ImGui::DragFloat("X", &vrotation.x, 0.1f); ImGui::PopID(); ImGui::PopItemWidth();
		ImGui::SameLine(); ImGui::PushItemWidth(60); ImGui::PushID("rot");  ImGui::DragFloat("Y", &vrotation.y, 0.1f); ImGui::PopID(); ImGui::PopItemWidth();
		ImGui::SameLine(); ImGui::PushItemWidth(60); ImGui::PushID("rot");  ImGui::DragFloat("Z", &vrotation.z, 0.1f); ImGui::PopID(); ImGui::PopItemWidth();

		float3 last_scale = vscale;
		ImGui::Text("Scale:   ");
		ImGui::SameLine(); ImGui::PushItemWidth(60);  ImGui::PushID("scale"); ImGui::DragFloat("X", &vscale.x, 0.1f); ImGui::PopID(); ImGui::PopItemWidth();
		ImGui::SameLine(); ImGui::PushItemWidth(60);  ImGui::PushID("scale"); ImGui::DragFloat("Y", &vscale.y, 0.1f); ImGui::PopID(); ImGui::PopItemWidth();
		ImGui::SameLine(); ImGui::PushItemWidth(60);  ImGui::PushID("scale"); ImGui::DragFloat("Z", &vscale.z, 0.1f); ImGui::PopID(); ImGui::PopItemWidth();


		if (last_position.x != vposition.x || last_position.y != vposition.y || last_position.z != vposition.z ||
			last_rotation.x != vrotation.x || last_rotation.y != vrotation.y || last_rotation.z != vrotation.z ||
			last_scale.x != vscale.x || last_scale.y != vscale.y || last_scale.z != vscale.z)
		{
			UpdateMatrices();
		}

	}

	if (!unFold) {
		ImGui::GetStateStorage()->SetInt(ImGui::GetID(name.c_str()), 1);
		unFold = true;
	}

	//HERE UPDATE OF IMGUIZMO



	//guizmo.Update();

}

float4x4 C_Transform::GetGlobalMatrix() const
{
	GameObject* gameObject;
	float4x4 a = gameObject->mat2float4(globalMatrix);
	return a;
}

//void C_Transform::SetGlobalMatrix(float4x4 transform)
//{
//	GameObject a;
//	float4x4 localTransform = a.
//	this->transform = localTransform;
//
//	GameObject* gameObject;
//	globalMatrix = gameObject->Float2Mat4(transform);
//	//globalMatrix = transform; NOW THIS IS LINE AVOBE
//	globalMatrixTransposed = globalMatrix.transpose();
//	transform_updated = true; //no se realment pq serveix, TODO
//}



void C_Transform::UpdateMatrices() {

	mat4x4 translation = translate(vposition.x, vposition.y, vposition.z);
	mat4x4 rotation, aux;
	rotation = rotation * aux.rotate(vrotation.x, { 1,0,0 });
	rotation = rotation * aux.rotate(vrotation.y, { 0,1,0 });
	rotation = rotation * aux.rotate(vrotation.z, { 0,0,1 });

	mat4x4 scaling = scale(vscale.x, vscale.y, vscale.z);

	if (gameobject->camera != nullptr) {
		localMatrix = translation * rotation;
		gameobject->camera->UpdateTransformPosition(gameobject->mat2float4(localMatrix));
	}
	else {
		localMatrix = translation * rotation * scaling;

		if (gameobject->parent != nullptr)
			globalMatrix = gameobject->parent->transform->globalMatrix * localMatrix;
		else
			globalMatrix = localMatrix;
	}

	gameobject->UpdateBox();
	gameobject->UpdateChilds();
}

bool C_Transform::Disable()
{
	active = false;
	return true;
}

void C_Transform::Save(const char * gameObject, json & file)
{
	file["Game Objects"][gameObject]["Components"]["Transform"]["Active"] = active;

	file["Game Objects"][gameObject]["Components"]["Transform"]["Position"] = { vposition.x, vposition.y, vposition.z };
	file["Game Objects"][gameObject]["Components"]["Transform"]["Rotation"] = { vrotation.x, vrotation.y, vrotation.z, vrotation.w };
	file["Game Objects"][gameObject]["Components"]["Transform"]["Scale"] = { vscale.x, vscale.y, vscale.y };

}

void C_Transform::Load(const char * gameObject, const json & file)
{
	active = file["Game Objects"][gameObject]["Components"]["Transform"]["Active"].get<bool>();

	vposition = float3(file["Game Objects"][gameObject]["Components"]["Transform"]["Position"][0],
					   file["Game Objects"][gameObject]["Components"]["Transform"]["Position"][1],
					   file["Game Objects"][gameObject]["Components"]["Transform"]["Position"][2]
	);
	vrotation = Quat(file["Game Objects"][gameObject]["Components"]["Transform"]["Rotation"][0],
					file["Game Objects"][gameObject]["Components"]["Transform"]["Rotation"][1],
					file["Game Objects"][gameObject]["Components"]["Transform"]["Rotation"][2],
					file["Game Objects"][gameObject]["Components"]["Transform"]["Rotation"][3]
	);
	vscale = float3(file["Game Objects"][gameObject]["Components"]["Transform"]["Scale"][0],
		file["Game Objects"][gameObject]["Components"]["Transform"]["Scale"][1],
		file["Game Objects"][gameObject]["Components"]["Transform"]["Scale"][2]
	);
	UpdateMatrices();
}