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-rw-r--r--src/client/particles.cpp1
-rw-r--r--src/particles.cpp4
-rw-r--r--src/tileanimation.cpp14
-rw-r--r--src/tileanimation.h4
4 files changed, 15 insertions, 8 deletions
diff --git a/src/client/particles.cpp b/src/client/particles.cpp
index 818cdc8cc..248f461bc 100644
--- a/src/client/particles.cpp
+++ b/src/client/particles.cpp
@@ -555,6 +555,7 @@ void ParticleSpawner::spawnParticle(ClientEnvironment *env, float radius,
// synchronize animation length with particle life if desired
if (pp.animation.type != TAT_NONE) {
+ // FIXME: this should be moved into a TileAnimationParams class method
if (pp.animation.type == TAT_VERTICAL_FRAMES &&
pp.animation.vertical_frames.length < 0) {
auto& a = pp.animation.vertical_frames;
diff --git a/src/particles.cpp b/src/particles.cpp
index 19b3418b7..e495ecd03 100644
--- a/src/particles.cpp
+++ b/src/particles.cpp
@@ -127,7 +127,7 @@ void ParticleParameters::serialize(std::ostream &os, u16 protocol_ver) const
os << serializeString32(texture.string);
writeU8(os, vertical);
writeU8(os, collision_removal);
- animation.serialize(os, 6); /* NOT the protocol ver */
+ animation.serialize(os, protocol_ver);
writeU8(os, glow);
writeU8(os, object_collision);
writeU16(os, node.param0);
@@ -160,7 +160,7 @@ void ParticleParameters::deSerialize(std::istream &is, u16 protocol_ver)
texture.string = deSerializeString32(is);
vertical = readU8(is);
collision_removal = readU8(is);
- animation.deSerialize(is, 6); /* NOT the protocol ver */
+ animation.deSerialize(is, protocol_ver);
glow = readU8(is);
object_collision = readU8(is);
diff --git a/src/tileanimation.cpp b/src/tileanimation.cpp
index a79a36e57..025d27d91 100644
--- a/src/tileanimation.cpp
+++ b/src/tileanimation.cpp
@@ -19,21 +19,27 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "tileanimation.h"
#include "util/serialize.h"
-void TileAnimationParams::serialize(std::ostream &os, u16 protocol_version) const
+void TileAnimationParams::serialize(std::ostream &os, u16 protocol_ver) const
{
+ // The particle code overloads the length parameter so that negative numbers
+ // indicate an extra feature which old clients don't understand (crash).
+ // In hindsight it would have been better to use an extra parameter for this
+ // but we're stuck with this now.
+ const bool need_abs = protocol_ver < 40;
+
writeU8(os, type);
if (type == TAT_VERTICAL_FRAMES) {
writeU16(os, vertical_frames.aspect_w);
writeU16(os, vertical_frames.aspect_h);
- writeF32(os, vertical_frames.length);
+ writeF32(os, need_abs ? fabs(vertical_frames.length) : vertical_frames.length);
} else if (type == TAT_SHEET_2D) {
writeU8(os, sheet_2d.frames_w);
writeU8(os, sheet_2d.frames_h);
- writeF32(os, sheet_2d.frame_length);
+ writeF32(os, need_abs ? fabs(sheet_2d.frame_length) : sheet_2d.frame_length);
}
}
-void TileAnimationParams::deSerialize(std::istream &is, u16 protocol_version)
+void TileAnimationParams::deSerialize(std::istream &is, u16 protocol_ver)
{
type = (TileAnimationType) readU8(is);
diff --git a/src/tileanimation.h b/src/tileanimation.h
index 0449de0b8..45b91655e 100644
--- a/src/tileanimation.h
+++ b/src/tileanimation.h
@@ -50,8 +50,8 @@ struct TileAnimationParams
} sheet_2d;
};
- void serialize(std::ostream &os, u16 protocol_version) const;
- void deSerialize(std::istream &is, u16 protocol_version);
+ void serialize(std::ostream &os, u16 protocol_ver) const;
+ void deSerialize(std::istream &is, u16 protocol_ver);
void determineParams(v2u32 texture_size, int *frame_count, int *frame_length_ms,
v2u32 *frame_size) const;
void getTextureModifer(std::ostream &os, v2u32 texture_size, int frame) const;