From a73aab63ffe70081dec13e175157d25f3a5b46a2 Mon Sep 17 00:00:00 2001
From: Daniel Mateu <32674639+Nyghor@users.noreply.github.com>
Date: Tue, 8 May 2018 20:51:42 +0200
Subject: [PATCH] Solved mesh instantiation bug, added plane mesh.

---
 LCSEngine/GameObject.cpp    |  9 ++++++---
 LCSEngine/MeshComponent.cpp | 36 ++++++++++++++++++++----------------
 LCSEngine/MeshComponent.h   |  3 ++-
 3 files changed, 28 insertions(+), 20 deletions(-)

diff --git a/LCSEngine/GameObject.cpp b/LCSEngine/GameObject.cpp
index a0f0bee..fb83827 100644
--- a/LCSEngine/GameObject.cpp
+++ b/LCSEngine/GameObject.cpp
@@ -991,9 +991,12 @@ void GameObject::updateComponents()
 		switch ((*it)->typeComponent)
 		{
 		case MESH:
-			aabb.Enclose(&((MeshComponent*)(*it))->verticesVBO[0], ((MeshComponent*)(*it))->verticesVBO.size());
-			obb = aabb.ToOBB();
-			obb.Transform(id.Transposed());
+			if (((MeshComponent*)(*it))->validMesh)
+			{
+				aabb.Enclose(&((MeshComponent*)(*it))->verticesVBO[0], ((MeshComponent*)(*it))->verticesVBO.size());
+				obb = aabb.ToOBB();
+				obb.Transform(id.Transposed());
+			}
 			break;
 		case CAMERA:
 			((CameraComponent*)(*it))->frustum.pos = id.Transposed().TranslatePart();
diff --git a/LCSEngine/MeshComponent.cpp b/LCSEngine/MeshComponent.cpp
index 140b76f..53c29cc 100644
--- a/LCSEngine/MeshComponent.cpp
+++ b/LCSEngine/MeshComponent.cpp
@@ -9,7 +9,7 @@
 #include "SaveLoadManager.h"
 
 static int selected_preset = 1;
-const char* presets[] = { "House", "Cube", "Sphere" };
+const char* presets[] = { "Plane", "Cube", "Sphere", "Model" };
 
 MeshComponent::MeshComponent(GameObject* gameObject, bool isEnable, bool isUnique) : Component(gameObject, isEnable, isUnique)
 {
@@ -33,9 +33,13 @@ void MeshComponent::setPreset(PresetType type)
 void MeshComponent::loadPreset()
 {
 	verticesVBO.clear();
-	currentPreset = MODEL;
 	switch (currentPreset)
 	{
+		case PLANE:
+		{
+			loadPlane();
+			break;
+		}
 		case CUBE:
 		{
 			loadCube();
@@ -124,20 +128,7 @@ void MeshComponent::drawGUI()
 				if (ImGui::Selectable(presets[i]))
 				{
 					selected_preset = i;
-					//Set Mesh of preset selected
-					if (i == 0)
-					{
-						currentPreset = PresetType::MODEL;
-					}
-					else if (i == 1)
-					{
-						currentPreset = PresetType::CUBE;
-					}
-					else if (i == 2)
-					{
-						currentPreset = PresetType::SPHERE;
-					}
-					loadPreset();
+					setPreset((PresetType)selected_preset);
 				}
 			}
 			ImGui::EndPopup();
@@ -237,6 +228,19 @@ void MeshComponent::loadCube()
 		4, 6, 7, 4, 5, 6 };
 }
 
+void MeshComponent::loadPlane()
+{
+	verticesVBO.reserve(4);
+	indicesVAO.reserve(6);
+	normalsVBO.reserve(4);
+	texCoordsVBO.reserve(4);
+	
+	verticesVBO = { float3(-0.5f, 0.5f, 0.f), float3(0.5f, 0.5f, 0.f), float3(0.5f, -0.5f, 0.f), float3(-0.5f, -0.5f, 0.f) };
+	indicesVAO = { 1, 3, 2, 1, 0, 3 };
+	normalsVBO = { float3(0.f, 0.f, 1.f), float3(0.f, 0.f, 1.f), float3(0.f, 0.f, 1.f), float3(0.f, 0.f, 1.f) };
+	texCoordsVBO = { float2(0.f, 0.f), float2(1.f, 0.f), float2(1.f, 1.f), float2(0.f, 1.f) };
+}
+
 void MeshComponent::loadModel()
 {
 	for (unsigned i = 0; i < model->scene->mRootNode->mNumChildren; ++i)
diff --git a/LCSEngine/MeshComponent.h b/LCSEngine/MeshComponent.h
index d3d7820..5a71442 100644
--- a/LCSEngine/MeshComponent.h
+++ b/LCSEngine/MeshComponent.h
@@ -10,7 +10,7 @@
 
 enum PresetType
 {
-	TRIANGLE = 1,
+	PLANE,
 	CUBE,
 	SPHERE,
 	MODEL
@@ -71,6 +71,7 @@ class MeshComponent : public Component
 	void loadModel();
 	void loadSphere();
 	void loadCube();
+	void loadPlane();
 };
 
 #endif //__MESHCOMPONENT_H__
\ No newline at end of file