From 225e69063fa0c3dc96f960aa79dfc568fe3d89a8 Mon Sep 17 00:00:00 2001
From: hecks <42101236+hecktest@users.noreply.github.com>
Date: Fri, 26 Feb 2021 21:23:46 +0100
Subject: Keep mapblocks in memory if they're in range (#10714)

Some other minor parts of clientmap.cpp have been cleaned up along the way
---
 src/util/numeric.cpp | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

(limited to 'src/util/numeric.cpp')

diff --git a/src/util/numeric.cpp b/src/util/numeric.cpp
index 1af3f66be..99e4cfb5c 100644
--- a/src/util/numeric.cpp
+++ b/src/util/numeric.cpp
@@ -106,10 +106,6 @@ u64 murmur_hash_64_ua(const void *key, int len, unsigned int seed)
 bool isBlockInSight(v3s16 blockpos_b, v3f camera_pos, v3f camera_dir,
 		f32 camera_fov, f32 range, f32 *distance_ptr)
 {
-	// Maximum radius of a block.  The magic number is
-	// sqrt(3.0) / 2.0 in literal form.
-	static constexpr const f32 block_max_radius = 0.866025403784f * MAP_BLOCKSIZE * BS;
-
 	v3s16 blockpos_nodes = blockpos_b * MAP_BLOCKSIZE;
 
 	// Block center position
@@ -123,7 +119,7 @@ bool isBlockInSight(v3s16 blockpos_b, v3f camera_pos, v3f camera_dir,
 	v3f blockpos_relative = blockpos - camera_pos;
 
 	// Total distance
-	f32 d = MYMAX(0, blockpos_relative.getLength() - block_max_radius);
+	f32 d = MYMAX(0, blockpos_relative.getLength() - BLOCK_MAX_RADIUS);
 
 	if (distance_ptr)
 		*distance_ptr = d;
@@ -141,7 +137,7 @@ bool isBlockInSight(v3s16 blockpos_b, v3f camera_pos, v3f camera_dir,
 	// such that a block that has any portion visible with the
 	// current camera position will have the center visible at the
 	// adjusted postion
-	f32 adjdist = block_max_radius / cos((M_PI - camera_fov) / 2);
+	f32 adjdist = BLOCK_MAX_RADIUS / cos((M_PI - camera_fov) / 2);
 
 	// Block position relative to adjusted camera
 	v3f blockpos_adj = blockpos - (camera_pos - camera_dir * adjdist);
-- 
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