diff options
author | Dr Scofield | 2009-02-09 10:04:54 +0000 |
---|---|---|
committer | Dr Scofield | 2009-02-09 10:04:54 +0000 |
commit | 07804f6937eb163a80cd0da25dc2da81336ad152 (patch) | |
tree | 810866f6cda72fffe061a3da97e951862fd98d9f /OpenSim/Region/ScriptEngine/Shared | |
parent | fixing refactoring artefact. (fixes mantis #3113) (diff) | |
download | opensim-SC_OLD-07804f6937eb163a80cd0da25dc2da81336ad152.zip opensim-SC_OLD-07804f6937eb163a80cd0da25dc2da81336ad152.tar.gz opensim-SC_OLD-07804f6937eb163a80cd0da25dc2da81336ad152.tar.bz2 opensim-SC_OLD-07804f6937eb163a80cd0da25dc2da81336ad152.tar.xz |
This patch implements llLookAt to the extent that an object will correctly
rotate and point to the target, however it doesnt yet use the damping or
strength parameters.
From: Robert Smart <smartrob@uk.ibm.com>
Diffstat (limited to '')
-rw-r--r-- | OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs index c14d454..a73977e 100644 --- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs +++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs | |||
@@ -2506,8 +2506,30 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api | |||
2506 | 2506 | ||
2507 | public void llLookAt(LSL_Vector target, double strength, double damping) | 2507 | public void llLookAt(LSL_Vector target, double strength, double damping) |
2508 | { | 2508 | { |
2509 | // partial implementation, rotates objects correctly but does not apply strength or damping attributes | ||
2510 | |||
2509 | m_host.AddScriptLPS(1); | 2511 | m_host.AddScriptLPS(1); |
2510 | NotImplemented("llLookAt"); | 2512 | // Determine where we are looking from |
2513 | LSL_Vector from = llGetPos(); | ||
2514 | |||
2515 | // Work out the normalised vector from the source to the target | ||
2516 | LSL_Vector delta = llVecNorm(target - from); | ||
2517 | LSL_Vector angle = new LSL_Vector(0,0,0); | ||
2518 | |||
2519 | // Calculate the yaw | ||
2520 | // subtracting PI_BY_TWO is required to compensate for the odd SL co-ordinate system | ||
2521 | angle.x = llAtan2(delta.z, delta.y) - ScriptBaseClass.PI_BY_TWO; | ||
2522 | |||
2523 | // Calculate pitch | ||
2524 | angle.y = llAtan2(delta.x, llSqrt((delta.y * delta.y) + (delta.z * delta.z))); | ||
2525 | |||
2526 | // we need to convert from a vector describing | ||
2527 | // the angles of rotation in radians into rotation value | ||
2528 | |||
2529 | LSL_Types.Quaternion rot = llEuler2Rot(angle); | ||
2530 | |||
2531 | // Orient the object to the angle calculated | ||
2532 | llSetRot(rot); | ||
2511 | } | 2533 | } |
2512 | 2534 | ||
2513 | public void llStopLookAt() | 2535 | public void llStopLookAt() |