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Plantlike visual scale: Send sqrt(visual_scale) to old clients 

Keep compatibility with protocol < 30 clients now that visual_scale
is no longer applied twice to plantlike drawtype and mods are being
updated to a new value.
This commit is contained in:
paramat 2017-01-29 06:29:40 +00:00
parent e761b9f486
commit cdc538e0a2
2 changed files with 9 additions and 3 deletions
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2
src/network/networkprotocol.h
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@ -146,6 +146,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
PROTOCOL VERSION 30: PROTOCOL VERSION 30:
New ContentFeatures serialization version New ContentFeatures serialization version
Add node and tile color and palette Add node and tile color and palette
Fix plantlike visual_scale being applied squared and add compatibility
with pre-30 clients by sending sqrt(visual_scale)
*/ */
#define LATEST_PROTOCOL_VERSION 30 #define LATEST_PROTOCOL_VERSION 30

10
src/nodedef.cpp
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@ -1611,6 +1611,10 @@ void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version) const
compatible_param_type_2 = CPT2_WALLMOUNTED; compatible_param_type_2 = CPT2_WALLMOUNTED;
} }
float compatible_visual_scale = visual_scale;
if (protocol_version < 30 && drawtype == NDT_PLANTLIKE)
compatible_visual_scale = sqrt(visual_scale);
if (protocol_version == 13) if (protocol_version == 13)
{ {
writeU8(os, 5); // version writeU8(os, 5); // version
@ -1622,7 +1626,7 @@ void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version) const
writeS16(os, i->second); writeS16(os, i->second);
} }
writeU8(os, drawtype); writeU8(os, drawtype);
writeF1000(os, visual_scale); writeF1000(os, compatible_visual_scale);
writeU8(os, 6); writeU8(os, 6);
for (u32 i = 0; i < 6; i++) for (u32 i = 0; i < 6; i++)
tiledef[i].serialize(os, protocol_version); tiledef[i].serialize(os, protocol_version);
@ -1670,7 +1674,7 @@ void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version) const
writeS16(os, i->second); writeS16(os, i->second);
} }
writeU8(os, drawtype); writeU8(os, drawtype);
writeF1000(os, visual_scale); writeF1000(os, compatible_visual_scale);
writeU8(os, 6); writeU8(os, 6);
for (u32 i = 0; i < 6; i++) for (u32 i = 0; i < 6; i++)
tiledef[i].serialize(os, protocol_version); tiledef[i].serialize(os, protocol_version);
@ -1724,7 +1728,7 @@ void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version) const
writeS16(os, i->second); writeS16(os, i->second);
} }
writeU8(os, drawtype); writeU8(os, drawtype);
writeF1000(os, visual_scale); writeF1000(os, compatible_visual_scale);
writeU8(os, 6); writeU8(os, 6);
for (u32 i = 0; i < 6; i++) for (u32 i = 0; i < 6; i++)
tiledef[i].serialize(os, protocol_version); tiledef[i].serialize(os, protocol_version);