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*Fix the bug that knockback cause client crash.

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--HG--
branch : trunk
This commit is contained in:
megamage
2009-02-17 11:27:47 -06:00
parent 3510eb4896
commit d11c80ec54
1 changed files with 14 additions and 5 deletions
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src/game/SpellEffects.cpp
+13 -4
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@@ -5935,7 +5935,7 @@ void Spell::EffectKnockBack(uint32 i)
return; return;
float x, y; float x, y;
if(m_targets.HasDest()) if(m_targets.m_targetMask & TARGET_FLAG_DEST_LOCATION)
{ {
x = m_targets.m_destX; x = m_targets.m_destX;
y = m_targets.m_destY; y = m_targets.m_destY;
@@ -5948,10 +5948,19 @@ void Spell::EffectKnockBack(uint32 i)
float dx = unitTarget->GetPositionX() - x; float dx = unitTarget->GetPositionX() - x;
float dy = unitTarget->GetPositionY() - y; float dy = unitTarget->GetPositionY() - y;
float vcos, vsin;
if(dx < 0.001f && dy < 0.001f)
{
float angle = rand_norm()*2*M_PI;
vcos = cos(angle);
vsin = sin(angle);
}
else
{
float dist = sqrt((dx*dx) + (dy*dy)); float dist = sqrt((dx*dx) + (dy*dy));
vcos = dx / dist;
float vcos = dx / dist; vsin = dy / dist;
float vsin = dy / dist; }
WorldPacket data(SMSG_MOVE_KNOCK_BACK, (8+4+4+4+4+4)); WorldPacket data(SMSG_MOVE_KNOCK_BACK, (8+4+4+4+4+4));
data.append(unitTarget->GetPackGUID()); data.append(unitTarget->GetPackGUID());