BLADERUNNER: Fixed fog rendering

Fogs were not animated.
Clean up of the fog calculation routines.

1 files changed, 10 insertions, 3 deletions

diff --git a/engines/bladerunner/vector.h b/engines/bladerunner/vector.h
index d5d6365a81..52883cb587 100644
--- a/engines/bladerunner/vector.h
+++ b/engines/bladerunner/vector.h
@@ -55,8 +55,11 @@ public:
 
 	Vector3(float ax, float ay, float az) : x(ax), y(ay), z(az) {}
 
-	float length() { return sqrt(x * x + y * y + z * z); }
-	Vector3 normalize() {
+	inline float length() {
+		return sqrt(x * x + y * y + z * z);
+	}
+
+	inline Vector3 normalize() {
 		float len = length();
 		if (len == 0) {
 			return Vector3(0.0f, 0.0f, 0.0f);
@@ -64,13 +67,17 @@ public:
 		return Vector3(x / len, y / len, z / len);
 	}
 
-	static Vector3 cross(Vector3 a, Vector3 b) {
+	inline static Vector3 cross(Vector3 a, Vector3 b) {
 		return Vector3(
 			a.y * b.z - a.z * b.y,
 			a.z * b.x - a.x * b.z,
 			a.x * b.y - a.y * b.x);
 	}
 
+	inline static float dot(Vector3 a, Vector3 b) {
+		return a.x * b.x + a.y * b.y + a.z * b.z;
+	}
+
 	Vector2 xz() const {
 		return Vector2(x, z);
 	}