From: terencehill <piuntn@gmail.com>
Date: Fri, 30 Apr 2021 17:28:04 +0000 (+0200)
Subject: Optimize code rotating prejectiles
X-Git-Tag: xonotic-v0.8.5~428
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=a8e2daa3060cd8838a2a64040e41eea56eb30924;p=xonotic%2Fxonotic-data.pk3dir.git

Optimize code rotating prejectiles
---

diff --git a/qcsrc/client/weapons/projectile.qc b/qcsrc/client/weapons/projectile.qc
index 4e457daba..37efbddfa 100644
--- a/qcsrc/client/weapons/projectile.qc
+++ b/qcsrc/client/weapons/projectile.qc
@@ -115,7 +115,18 @@ void Projectile_Draw(entity this)
 		if (Projectile_isnade(this.cnt))
 			rot = this.avelocity;
 
-		this.angles = AnglesTransform_ToAngles(AnglesTransform_Multiply(AnglesTransform_FromAngles(this.angles), rot * (t - this.spawntime)));
+		if (rot)
+		{
+			if (!rot.x && !rot.y)
+			{
+				// cheaper z-only rotation formula
+				this.angles.z = (rot.z * (t - this.spawntime)) % 360;
+				if (this.angles.z < 0)
+					this.angles.z += 360;
+			}
+			else
+				this.angles = AnglesTransform_ToAngles(AnglesTransform_Multiply(AnglesTransform_FromAngles(this.angles), rot * (t - this.spawntime)));
+		}
 	}
 
 	vector ang;