Peds, mission switcher & fixes

src/core/General.h

@@ -134,6 +134,18 @@ public:
 		return *str2 != '\0';
 	}
 
+	static bool SolveQuadratic(float a, float b, float c, float &root1, float &root2)
+	{
+		float discriminant = b * b - 4.f * a * c;
+		if (discriminant < 0.f)
+			return false;
+
+		float discriminantSqrt = Sqrt(discriminant);
+		root2 = (-b + discriminantSqrt) / (2.f * a);
+		root1 = (-b - discriminantSqrt) / (2.f * a);
+		return true;
+	}
+
 	// not too sure about all these...
 	static uint16 GetRandomNumber(void)
 		{ return myrand() & MYRAND_MAX; }