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-rw-r--r--src/game/GameObject.cpp13
1 files changed, 7 insertions, 6 deletions
diff --git a/src/game/GameObject.cpp b/src/game/GameObject.cpp
index 00e60395ce4..f17533f04cb 100644
--- a/src/game/GameObject.cpp
+++ b/src/game/GameObject.cpp
@@ -1406,20 +1406,21 @@ const char* GameObject::GetNameForLocaleIdx(int32 loc_idx) const
void GameObject::UpdateRotationFields(float rotation2 /*=0.0f*/, float rotation3 /*=0.0f*/)
{
- SetFloatValue(GAMEOBJECT_FACING, GetOrientation());
+ static double const atan_pow = atan(pow(2.0f, -20.0f));
- int64 rotation = 0;
+ SetFloatValue(GAMEOBJECT_FACING, GetOrientation());
double f_rot1 = sin(GetOrientation() / 2.0f);
- int64 i_rot1 = int64(f_rot1 / atan(pow(2.0f, -20.0f)));
- rotation |= (i_rot1 << 43 >> 43) & 0x00000000001FFFFF;
+ double f_rot2 = cos(GetOrientation() / 2.0f);
+ int64 i_rot1 = int64(f_rot1 / atan_pow *(f_rot2 >= 0 ? 1.0f : -1.0f));
+ int64 rotation = (i_rot1 << 43 >> 43) & 0x00000000001FFFFF;
SetUInt64Value(GAMEOBJECT_ROTATION, rotation);
if(rotation2==0.0f && rotation3==0.0f)
{
- rotation2 = sin(GetOrientation()/2);
- rotation3 = cos(GetOrientation()/2);
+ rotation2 = f_rot1;
+ rotation3 = f_rot2;
}
SetFloatValue(GAMEOBJECT_PARENTROTATION+2, rotation2);