Merge branch 'master' into mirceakitsune/playermodel_ubot

[xonotic/xonotic-data.pk3dir.git] / qcsrc / lib / warpzone / anglestransform.qh

diff --git a/qcsrc/lib/warpzone/anglestransform.qh b/qcsrc/lib/warpzone/anglestransform.qh
new file mode 100644 (file)
index 0000000..0a10843
--- /dev/null
+++ b/qcsrc/lib/warpzone/anglestransform.qh
@@ -0,0 +1,45 @@
+#ifndef LIB_WARPZONE_ANGLETRANSFORM_H
+#define LIB_WARPZONE_ANGLETRANSFORM_H
+
+#ifndef POSITIVE_PITCH_IS_DOWN
+#define POSITIVE_PITCH_IS_DOWN 1
+#endif
+
+#if POSITIVE_PITCH_IS_DOWN
+    #define fixedmakevectors makevectors
+    noref vector _fixedvectoangles;
+    #define fixedvectoangles(a) (_fixedvectoangles = vectoangles(a), _fixedvectoangles.x *= -1, _fixedvectoangles)
+    noref vector _fixedvectoangles2;
+    #define fixedvectoangles2(a, b) (_fixedvectoangles2 = vectoangles2(a, b), _fixedvectoangles2.x *= -1, _fixedvectoangles2)
+#else
+    void fixedmakevectors(vector a)
+    {
+        // a makevectors that actually inverts vectoangles
+        a.x = -a.x;
+        makevectors(a);
+    }
+    #define fixedvectoangles2 vectoangles2
+    #define fixedvectoangles vectoangles
+#endif
+
+vector AnglesTransform_Apply(vector transform, vector v);
+vector AnglesTransform_Multiply(vector t1, vector t2); // A B
+vector AnglesTransform_Invert(vector transform);
+vector AnglesTransform_TurnDirectionFU(vector transform);
+vector AnglesTransform_TurnDirectionFR(vector transform);
+vector AnglesTransform_RightDivide(vector to_transform, vector from_transform); // A B^-1
+vector AnglesTransform_LeftDivide(vector from_transform, vector to_transform); // A^-1 B
+
+vector AnglesTransform_Normalize(vector t, float minimize_roll); // makes sure all angles are in their range: yaw in -180..180, pitch in -90..90, roll in -180..180 (or if minimize_roll is set, pitch in -180..180, roll in -90..90)
+
+vector AnglesTransform_ApplyToAngles(vector transform, vector v);
+vector AnglesTransform_ApplyToVAngles(vector transform, vector v);
+vector AnglesTransform_FromAngles(vector v);
+vector AnglesTransform_ToAngles(vector v);
+vector AnglesTransform_FromVAngles(vector v);
+vector AnglesTransform_ToVAngles(vector v);
+
+// transformed = original * transform + postshift
+vector AnglesTransform_Multiply_GetPostShift(vector sf0, vector st0, vector t1, vector st1);
+vector AnglesTransform_PrePostShift_GetPostShift(vector sf, vector t, vector st);
+#endif