From 58252687ac17201da7b7f9a3196a8813ecc894e1 Mon Sep 17 00:00:00 2001
From: SirLynix <lynix680@gmail.com>
Date: Sat, 23 Dec 2023 18:07:41 +0100
Subject: [PATCH] Add ship platforms

---
 include/CommonLib/Planet.hpp     |  1 +
 src/CommonLib/Planet.cpp         | 59 ++++++++++++++++++++++++++++++++
 src/ServerLib/ServerInstance.cpp |  2 ++
 3 files changed, 62 insertions(+)

diff --git a/include/CommonLib/Planet.hpp b/include/CommonLib/Planet.hpp
index c11c5b51..5b6f0782 100644
--- a/include/CommonLib/Planet.hpp
+++ b/include/CommonLib/Planet.hpp
@@ -29,6 +29,7 @@ namespace tsom
 			Nz::Vector3f ComputeUpDirection(const Nz::Vector3f& position) const;
 
 			void GenerateChunks(BlockLibrary& blockLibrary);
+			void GeneratePlatform(BlockLibrary& blockLibrary, Direction upDirection, const Nz::Vector3ui& platformCenter);
 
 			inline Nz::Vector3f GetCenter() const override;
 			inline Chunk* GetChunk(std::size_t chunkIndex) override;
diff --git a/src/CommonLib/Planet.cpp b/src/CommonLib/Planet.cpp
index 12dfcd23..16e40868 100644
--- a/src/CommonLib/Planet.cpp
+++ b/src/CommonLib/Planet.cpp
@@ -317,6 +317,65 @@ namespace tsom
 		}*/
 	}
 
+	void Planet::GeneratePlatform(BlockLibrary& blockLibrary, Direction upDirection, const Nz::Vector3ui& platformCenter)
+	{
+		constexpr int platformSize = 15;
+		constexpr unsigned int freeHeight = 10;
+
+		constexpr Nz::EnumArray<Direction, unsigned int> s_leftAxis = { 0, 0, 0, 1, 1, 0 };
+		constexpr Nz::EnumArray<Direction, unsigned int> s_forwardAxis = { 2, 1, 2, 0, 0, 1 };
+		constexpr Nz::EnumArray<Direction, unsigned int> s_upAxis = { 1, 2, 1, 2, 2, 2 };
+		constexpr Nz::EnumArray<Direction, int> s_leftDir = { -1, -1, -1, -1, 1, -1 };
+		constexpr Nz::EnumArray<Direction, int> s_forwardDir = { 1, 1, -1, -1, -1, -1 };
+		constexpr Nz::EnumArray<Direction, int> s_upDir = { 1, -1, -1, 1, -1, 1 };
+
+		Nz::Vector3ui coordinates = platformCenter;
+
+		unsigned int& xPos = coordinates[s_leftAxis[upDirection]];
+		xPos += s_leftDir[upDirection] * platformSize / 2;
+
+		unsigned int& yPos = coordinates[s_upAxis[upDirection]];
+
+		unsigned int& zPos = coordinates[s_forwardAxis[upDirection]];
+		zPos += -s_forwardDir[upDirection] * platformSize / 2;
+
+		BlockIndex borderBlockIndex = blockLibrary.GetBlockIndex("copper_block");
+		BlockIndex interiorBlockIndex = blockLibrary.GetBlockIndex("stone_bricks");
+
+		for (unsigned int y = 0; y < freeHeight; ++y)
+		{
+			unsigned int startingZ = zPos;
+			for (unsigned int z = 0; z < platformSize; ++z)
+			{
+				unsigned int startingX = xPos;
+				for (unsigned int x = 0; x < platformSize; ++x)
+				{
+					BlockIndex blockIndex;
+					if (y != 0)
+						blockIndex = EmptyBlockIndex;
+					else if (x == 0 || x == platformSize - 1)
+						blockIndex = borderBlockIndex;
+					else if (z == 0 || z == platformSize - 1)
+						blockIndex = borderBlockIndex;
+					else
+						blockIndex = interiorBlockIndex;
+
+					Nz::Vector3ui innerCoordinates;
+					Chunk& chunk = GetChunkByIndices(coordinates, &innerCoordinates);
+					chunk.UpdateBlock(innerCoordinates, blockIndex);
+
+					xPos += -s_leftDir[upDirection];
+				}
+
+				xPos = startingX;
+				zPos += s_forwardDir[upDirection];
+			}
+
+			yPos += s_upDir[upDirection];
+			zPos = startingZ;
+		}
+	}
+
 	void Planet::RemoveChunk(const Nz::Vector3ui& indices)
 	{
 		std::size_t index = GetChunkIndex(indices);
diff --git a/src/ServerLib/ServerInstance.cpp b/src/ServerLib/ServerInstance.cpp
index 9ad82b4a..072e9e30 100644
--- a/src/ServerLib/ServerInstance.cpp
+++ b/src/ServerLib/ServerInstance.cpp
@@ -28,6 +28,8 @@ namespace tsom
 
 		m_planet = std::make_unique<Planet>(Nz::Vector3ui(160), 2.f, 16.f, 9.81f);
 		m_planet->GenerateChunks(m_blockLibrary);
+		m_planet->GeneratePlatform(m_blockLibrary, tsom::Direction::Up, { 68, 109, 146 });
+		m_planet->GeneratePlatform(m_blockLibrary, tsom::Direction::Back, { 33, 148, 60 });
 
 		m_planetEntities = std::make_unique<ChunkEntities>(m_world, *m_planet, m_blockLibrary);
 	}