From cadf9ebe4ee6bb6a26e4357f14009ec9fd4f3d95 Mon Sep 17 00:00:00 2001
From: proller <proller@github.com>
Date: Sat, 26 Oct 2024 04:29:51 +0200
Subject: [PATCH] wip

---
 src/client/content_mapblock.cpp |  4 ++--
 src/client/fm_far_container.cpp | 13 +++++++------
 src/client/mapblock_mesh.cpp    |  4 ++--
 src/mapgen/mapgen_v7.cpp        |  3 +++
 4 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/src/client/content_mapblock.cpp b/src/client/content_mapblock.cpp
index 343a3c262..42cd138cb 100644
--- a/src/client/content_mapblock.cpp
+++ b/src/client/content_mapblock.cpp
@@ -1750,8 +1750,8 @@ void MapblockMeshGenerator::drawNode()
 
 void MapblockMeshGenerator::generate()
 {
-	const auto lstep = data->lod_step ? data->fscale : 1;
-	const auto fstep = data->far_step ? data->fscale : 1;
+	const auto lstep = 1 << data->lod_step;
+	const auto fstep = 1 << data->far_step;
 	for (cur_node.pf.Z = cur_node.pr.Z = 0; cur_node.pr.Z < data->side_length_data; cur_node.pr.Z+=lstep, cur_node.pf.Z+=fstep)
 	for (cur_node.pf.Y = cur_node.pr.Y = 0; cur_node.pr.Y < data->side_length_data; cur_node.pr.Y+=lstep, cur_node.pf.Y+=fstep)
 	for (cur_node.pf.X = cur_node.pr.X = 0; cur_node.pr.X < data->side_length_data; cur_node.pr.X+=lstep, cur_node.pf.X+=fstep) {
diff --git a/src/client/fm_far_container.cpp b/src/client/fm_far_container.cpp
index 164cfd62c..8d83266f1 100644
--- a/src/client/fm_far_container.cpp
+++ b/src/client/fm_far_container.cpp
@@ -16,7 +16,7 @@ FarContainer::FarContainer(Client *client) : m_client{client}
 namespace
 {
 thread_local MapBlockP block_cache{};
-thread_local v3bpos_t block_cache_p;
+thread_local std::pair<block_step_t, v3bpos_t> block_cache_p;
 }
 
 const MapNode &FarContainer::getNodeRefUnsafe(const v3pos_t &pos)
@@ -26,12 +26,13 @@ const MapNode &FarContainer::getNodeRefUnsafe(const v3pos_t &pos)
 			getNodeBlockPos(m_client->getEnv().getClientMap().far_blocks_last_cam_pos),
 			bpos);
 	const auto &shift = step; // + cell_size_pow;
-	const v3bpos_t bpos_aligned((bpos.X >> shift) << shift, (bpos.Y >> shift) << shift,
-			(bpos.Z >> shift) << shift);
+	const v3bpos_t bpos_aligned = getFarActual(bpos,
+			getNodeBlockPos(m_client->getEnv().getClientMap().far_blocks_last_cam_pos),
+			step, m_client->getEnv().getClientMap().getControl());
 
 	MapBlockP block;
-
-	if (block_cache && bpos_aligned == block_cache_p) {
+	const auto step_block_pos = std::make_pair(step, bpos_aligned);
+	if (block_cache && step_block_pos == block_cache_p) {
 		block = block_cache;
 	}
 
@@ -94,7 +95,7 @@ const MapNode &FarContainer::getNodeRefUnsafe(const v3pos_t &pos)
 			return n;
 		}
 
-		block_cache_p = bpos_aligned;
+		block_cache_p = step_block_pos;
 		block_cache = block;
 	}
 
diff --git a/src/client/mapblock_mesh.cpp b/src/client/mapblock_mesh.cpp
index 7b3d6d23e..8a8b1422b 100644
--- a/src/client/mapblock_mesh.cpp
+++ b/src/client/mapblock_mesh.cpp
@@ -48,7 +48,7 @@ MeshMakeData::MeshMakeData(Client *client, bool use_shaders,
 		NodeContainer *nodecontainer) :
 
 	m_mesh_grid(client->getMeshGrid()),
-	side_length((MAP_BLOCKSIZE * m_mesh_grid.cell_size) / (pow(2, lod_step))),
+	side_length((MAP_BLOCKSIZE * m_mesh_grid.cell_size) >> lod_step),
 	m_client(client),
 	m_use_shaders(use_shaders)
 		,
@@ -56,7 +56,7 @@ MeshMakeData::MeshMakeData(Client *client, bool use_shaders,
 		side_length_data(MAP_BLOCKSIZE * m_mesh_grid.cell_size),
 		lod_step{lod_step},
 		far_step{far_step},
-		fscale(pow(2, far_step + lod_step))
+		fscale(1<<(far_step + lod_step))
 {}
 
 void MeshMakeData::fillBlockDataBegin(const v3s16 &blockpos)
diff --git a/src/mapgen/mapgen_v7.cpp b/src/mapgen/mapgen_v7.cpp
index 50a55d36e..7072f3cf4 100644
--- a/src/mapgen/mapgen_v7.cpp
+++ b/src/mapgen/mapgen_v7.cpp
@@ -193,6 +193,7 @@ MapgenV7Params::MapgenV7Params():
 
 void MapgenV7Params::readParams(const Settings *settings)
 {
+
 //freeminer:
 	settings->getNoiseParamsFromGroup("mg_np_layers",         np_layers);
 	paramsj = settings->getJson("mg_params", paramsj);
@@ -239,10 +240,12 @@ void MapgenV7Params::readParams(const Settings *settings)
 
 void MapgenV7Params::writeParams(Settings *settings) const
 {
+
 //freeminer:
 	settings->setNoiseParams("mg_np_layers",         np_layers);
 	settings->setJson("mg_params", paramsj);
 //----------
+
 	settings->setFlagStr("mgv7_spflags", spflags, flagdesc_mapgen_v7);
 	settings->setS16("mgv7_mount_zero_level",           mount_zero_level);
 	settings->setS16("mgv7_floatland_ymin",             floatland_ymin);