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-rw-r--r--engines/cge2/cge2.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/engines/cge2/cge2.h b/engines/cge2/cge2.h
index 0533e19bd8..be2bbd33e3 100644
--- a/engines/cge2/cge2.h
+++ b/engines/cge2/cge2.h
@@ -134,6 +134,7 @@ public:
void setAutoColors();
bool cross(const V2D &a, const V2D &b, const V2D &c, const V2D &d);
bool contain(const V2D &a, const V2D &b, const V2D &p);
+ long det(const V2D &a, const V2D &b, const V2D &c);
int sgn(long n);
int mapCross(const V2D &a, const V2D &b);