From ba957ed9f476a39f5bbea621814bbe191493428c Mon Sep 17 00:00:00 2001
From: megamage <none@none>
Date: Mon, 23 Mar 2009 15:26:13 -0600
Subject: *Allow knockback creatures.

--HG--
branch : trunk
---
 src/game/Object.cpp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'src/game/Object.cpp')

diff --git a/src/game/Object.cpp b/src/game/Object.cpp
index 26405d13cf7..b17f905b7dd 100644
--- a/src/game/Object.cpp
+++ b/src/game/Object.cpp
@@ -1278,6 +1278,25 @@ float WorldObject::GetAngle( const float x, const float y ) const
     return ang;
 }
 
+void WorldObject::GetSinCos(const float x, const float y, float &vsin, float &vcos)
+{
+    float dx = GetPositionX() - x;
+    float dy = GetPositionY() - y;
+
+    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));
+        vcos = dx / dist;
+        vsin = dy / dist;
+    }
+}
+
 bool WorldObject::HasInArc(const float arcangle, const WorldObject* obj) const
 {
     float arc = arcangle;
-- 
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