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Add ZScript method `LevelLocals.SphericalCoords`. 

It computes spherical coordinates from one point in the world to another. Useful for checking whether one actor is inside another actor's view cone.
This commit is contained in:
argv-minus-one 2018-08-20 16:31:52 -07:00 committed by Christoph Oelckers
parent 03fa1a12cb
commit 1d930b45cf
2 changed files with 25 additions and 0 deletions
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24
src/g_level.cpp
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@ -2043,6 +2043,30 @@ DEFINE_ACTION_FUNCTION(FLevelLocals, Vec3Diff)
ACTION_RETURN_VEC3(VecDiff(DVector3(x1, y1, z1), DVector3(x2, y2, z2)));
}
DEFINE_ACTION_FUNCTION(FLevelLocals, SphericalCoords)
{
PARAM_PROLOGUE;
PARAM_FLOAT(viewpointX);
PARAM_FLOAT(viewpointY);
PARAM_FLOAT(viewpointZ);
PARAM_FLOAT(targetX);
PARAM_FLOAT(targetY);
PARAM_FLOAT(targetZ);
PARAM_ANGLE_DEF(viewYaw);
PARAM_ANGLE_DEF(viewPitch);
PARAM_BOOL_DEF(absolute);
DVector3 viewpoint(viewpointX, viewpointY, viewpointZ);
DVector3 target(targetX, targetY, targetZ);
auto vecTo = absolute ? target - viewpoint : VecDiff(viewpoint, target);
ACTION_RETURN_VEC3(DVector3(
deltaangle(vecTo.Angle(), viewYaw).Degrees,
deltaangle(-vecTo.Pitch(), viewPitch).Degrees,
vecTo.Length()
));
}
DEFINE_ACTION_FUNCTION(FLevelLocals, Vec2Offset)
{
PARAM_PROLOGUE;

1
wadsrc/static/zscript/base.txt
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@ -668,6 +668,7 @@ struct LevelLocals native
native static clearscope vector2 Vec2Diff(vector2 v1, vector2 v2);
native static clearscope vector3 Vec3Diff(vector3 v1, vector3 v2);
native static clearscope vector3 SphericalCoords(vector3 viewpoint, vector3 targetPos, vector2 viewAngles = (0, 0), bool absolute = false);
native static clearscope vector2 Vec2Offset(vector2 pos, vector2 dir, bool absolute = false);
native static clearscope vector3 Vec2OffsetZ(vector2 pos, vector2 dir, double atz, bool absolute = false);