Add a missing negation

diff --git a/source/primitivebuilder.cpp b/source/primitivebuilder.cpp
index ca8f4f3c5343ff973aef0ab1e33173b5d6e4adc4..e461cf211bf77f2fe79b7f25b67a579c2d99fca3 100644 (file)
--- a/source/primitivebuilder.cpp
+++ b/source/primitivebuilder.cpp
@@ -29,7 +29,7 @@ void PrimitiveBuilder::begin(PrimitiveType t)
 
 void PrimitiveBuilder::end()
 {
-       if(in_batch)
+       if(!in_batch)
                throw InvalidState("end() called without begin()");
 
        builder=0;