fix crash in axis constraints application when not connecting any n64…

… controllers (fixes #946)
TASEmulators · Jul 29, 2017 · 89e87bc · 89e87bc
1 parent 66955ca
commit 89e87bc
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/BizHawk.Emulation.Common/Base Implementations/ControllerDefinition.cs b/BizHawk.Emulation.Common/Base Implementations/ControllerDefinition.cs
@@ -85,6 +85,8 @@ public void ApplyAxisConstraints(string constraintClass, IDictionary<string, flo
 							string xaxis = constraint.Params[0] as string;
 							string yaxis = constraint.Params[1] as string;
 							float range = (float)constraint.Params[2];
+							if (!floatButtons.ContainsKey(xaxis)) break;
+							if (!floatButtons.ContainsKey(yaxis)) break;
 							double xval = floatButtons[xaxis];
 							double yval = floatButtons[yaxis];
 							double length = Math.Sqrt((xval * xval) + (yval * yval));