flak_m/zscript/dt_coordutil.zsc
Marisa Kirisame b79d29f071 1.0 release. Requires 4.2.3 or higher.
- Migrated screen projection code to libeye.
- Some pickups emit light, like in Doomreal.
- Backported map revealer item from Doomreal.
- Brand new Invulnerability and Night Vision powerups.
- Add option to allow Shield Belt and armors simultaneously.
- Backported armor bonus model from Doomreal.
- Added Dual Enforcers icon for HUD.
- Changed player class names to their character names, like in Doomreal.
- Terrain splashes.
- Translocator doesn't telefrag other players in coop.
- Reduced view shake from Impact Hammer.
- Various other updates and bug fixes.
2019-10-21 22:05:57 +02:00

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/*
Coordinate Utility helper class.
(C)2018 Marisa Kirisame, UnSX Team.
Released under the GNU Lesser General Public License version 3 (or later).
See https://www.gnu.org/licenses/lgpl-3.0.txt for its terms.
*/
Class dt_CoordUtil
{
// In Tim Sweeney's own words: "transform by a pitch-yaw-roll rotation"
static Vector3, Vector3, Vector3 GetUnAxes( double pitch, double yaw, double roll )
{
Vector3 x = (1,0,0), y = (0,-1,0), z = (0,0,1); // y inverted for left-handed result
Vector3 a, b, c;
// pitch and roll in gzdoom work in reverse compared to UE
pitch = -pitch;
roll = -roll;
// yaw
a = (cos(yaw),sin(yaw),0);
b = (-sin(yaw),cos(yaw),0);
c = (0,0,1);
x = (x dot a, x dot b, x dot c);
y = (y dot a, y dot b, y dot c);
z = (z dot a, z dot b, z dot c);
// pitch
a = (cos(pitch),0,sin(pitch));
b = (0,1,0);
c = (-sin(pitch),0,cos(pitch));
x = (x dot a, x dot b, x dot c);
y = (y dot a, y dot b, y dot c);
z = (z dot a, z dot b, z dot c);
// roll
a = (1,0,0);
b = (0,cos(roll),-sin(roll));
c = (0,sin(roll),cos(roll));
x = (x dot a, x dot b, x dot c);
y = (y dot a, y dot b, y dot c);
z = (z dot a, z dot b, z dot c);
return x, y, z;
}
// In Tim Sweeney's own words: "detransform by a pitch-yaw-roll rotation"
static Vector3, Vector3, Vector3 GetAxes( double pitch, double yaw, double roll )
{
Vector3 x = (1,0,0), y = (0,-1,0), z = (0,0,1); // y inverted for left-handed result
Vector3 a, b, c;
// pitch and roll in gzdoom work in reverse compared to UE
pitch = -pitch;
roll = -roll;
// inverse roll
a = (1,0,0);
b = (0,cos(roll),sin(roll));
c = (0,-sin(roll),cos(roll));
x = (x dot a, x dot b, x dot c);
y = (y dot a, y dot b, y dot c);
z = (z dot a, z dot b, z dot c);
// inverse pitch
a = (cos(pitch),0,-sin(pitch));
b = (0,1,0);
c = (sin(pitch),0,cos(pitch));
x = (x dot a, x dot b, x dot c);
y = (y dot a, y dot b, y dot c);
z = (z dot a, z dot b, z dot c);
// inverse yaw
a = (cos(yaw),-sin(yaw),0);
b = (sin(yaw),cos(yaw),0);
c = (0,0,1);
x = (x dot a, x dot b, x dot c);
y = (y dot a, y dot b, y dot c);
z = (z dot a, z dot b, z dot c);
return x, y, z;
}
}