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An ACS library for ZDoom-based ports

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math [2019/04/20 19:58] – [Significant square roots and logarithms] korshunmath [2019/07/04 20:43] – [AnglesToVector] korshun
Line 315: Line 315:
  
 <note important>Remember that ZDoom uses inverted pitches on actors. ACSUtils functions don't invert pitches.</note> <note important>Remember that ZDoom uses inverted pitches on actors. ACSUtils functions don't invert pitches.</note>
 +
 +=== Example ===
 +
 +<code>
 +AnglesToVector(GetActorAngle(0), -GetActorPitch(0));
 +int dirX = r1;
 +int dirY = r2;
 +int dirZ = r3;
 +</code>
 +
 +
 ===== Logarithms ===== ===== Logarithms =====
  
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 <note important>Only bases higher than ''1.0'' are supported.</note> <note important>Only bases higher than ''1.0'' are supported.</note>
  
-<note important>Using ''ilogb'' with bases very close to ''1.0'' may produce a result that doesn't fit into a fixed.</note>+<note important>Using these functions with bases very close to ''1.0'' may produce a result that doesn't fit into a fixed.</note>
  
 Note that even the integer version has a fixed-point base. Note that even the integer version has a fixed-point base.
  
math.txt · Last modified: 2019/08/26 21:26 by korshun

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