From fc449268bb052b6840ba5d2d320d7d8db4b170aa Mon Sep 17 00:00:00 2001
From: Lyuu17 <lyuu17@yandex.com>
Date: Tue, 11 Jun 2024 13:07:30 +0200
Subject: [PATCH] Load models into the game level

---
 src/SWBF2/Level.cpp | 68 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)

diff --git a/src/SWBF2/Level.cpp b/src/SWBF2/Level.cpp
index 35e476b..44f7fa7 100644
--- a/src/SWBF2/Level.cpp
+++ b/src/SWBF2/Level.cpp
@@ -1,5 +1,10 @@
 
+#include <godot_cpp/classes/array_mesh.hpp>
+#include <godot_cpp/classes/mesh_instance3d.hpp>
+#include <godot_cpp/variant/color.hpp>
+
 #include "Native/Chunks/ChunkProcessor.hpp"
+#include "Native/Level.hpp"
 
 #include "Level.hpp"
 
@@ -8,6 +13,69 @@ namespace SWBF2
     void Level::_ready()
     {
         SWBF2::Native::UcfbChunk::ReadUcfbFile("data/_lvl_pc/cor/cor1.lvl");
+
+        for (auto const &[id, model] : Native::Level::m_models)
+        {
+            godot::MeshInstance3D *meshInstance = memnew(godot::MeshInstance3D);
+            meshInstance->set_name("_lvl_terrain");
+
+            add_child(meshInstance);
+
+            godot::PackedVector3Array vertices;
+            godot::PackedVector3Array normals;
+            //godot::PackedVector3Array tangents;
+            godot::PackedColorArray colors;
+            godot::PackedVector2Array uvs;
+            godot::PackedInt32Array indices;
+            for (auto const &segment : model.m_segments)
+            {
+                for (uint32_t i = 0; i < segment.m_verticesBuf.m_positions.size(); i++)
+                {
+                    vertices.push_back({ segment.m_verticesBuf.m_positions[i].x, segment.m_verticesBuf.m_positions[i].y, segment.m_verticesBuf.m_positions[i].z });
+                }
+
+                for (uint32_t i = 0; i < segment.m_verticesBuf.m_normals.size(); i++)
+                {
+                    normals.push_back({ segment.m_verticesBuf.m_normals[i].x, segment.m_verticesBuf.m_normals[i].y, segment.m_verticesBuf.m_normals[i].z });
+                }
+
+                /*for (uint32_t i = 0; i < segment.m_verticesBuf.m_tangents.size(); i++)
+                {
+                    tangents.push_back({ segment.m_verticesBuf.m_tangents[i].x, segment.m_verticesBuf.m_tangents[i].y, segment.m_verticesBuf.m_tangents[i].z });
+                }*/
+
+                for (uint32_t i = 0; i < segment.m_verticesBuf.m_colors.size(); i++)
+                {
+                    colors.push_back({ (float)segment.m_verticesBuf.m_colors[i].color.r, (float)segment.m_verticesBuf.m_colors[i].color.g, (float)segment.m_verticesBuf.m_colors[i].color.b, (float)segment.m_verticesBuf.m_colors[i].color.a });
+                }
+
+                for (uint32_t i = 0; i < segment.m_verticesBuf.m_texCoords.size(); i++)
+                {
+                    uvs.push_back({ segment.m_verticesBuf.m_texCoords[i].x, segment.m_verticesBuf.m_texCoords[i].y });
+                }
+
+                for (uint32_t i = 0; i < segment.m_indicesBuf.m_indices.size(); i++)
+                {
+                    indices.push_back({ segment.m_indicesBuf.m_indices[i] });
+                }
+            }
+
+
+
+            godot::Array arrays;
+            arrays.resize(godot::ArrayMesh::ARRAY_MAX);
+            arrays[godot::ArrayMesh::ARRAY_VERTEX] = vertices;
+            arrays[godot::ArrayMesh::ARRAY_NORMAL] = normals;
+            //arrays[godot::ArrayMesh::ARRAY_TANGENT] = tangents;
+            arrays[godot::ArrayMesh::ARRAY_COLOR] = colors;
+            arrays[godot::ArrayMesh::ARRAY_TEX_UV] = uvs;
+            arrays[godot::ArrayMesh::ARRAY_INDEX] = indices;
+
+            godot::ArrayMesh *arrMesh = memnew(godot::ArrayMesh);
+            arrMesh->add_surface_from_arrays(godot::Mesh::PRIMITIVE_TRIANGLE_STRIP, arrays);
+
+            meshInstance->set_mesh(arrMesh);
+        }
     }
 
     void Level::_process(double delta_time)