Panda3D
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seek.cxx
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file seek.cxx
10 * @author Deepak, John, Navin
11 * @date 2009-10-24
12 */
13
14#include "seek.h"
15
16Seek::Seek(AICharacter *ai_ch, NodePath target_object, float seek_wt) {
17 _ai_char = ai_ch;
18
19 _seek_position = target_object.get_pos(_ai_char->_window_render);
20 _seek_weight = seek_wt;
21
22 _seek_direction = _seek_position - _ai_char->_ai_char_np.get_pos(_ai_char->_window_render);
23 _seek_direction.normalize();
24
25 _seek_done = false;
26}
27
28Seek::Seek(AICharacter *ai_ch, LVecBase3 pos, float seek_wt) {
29 _ai_char = ai_ch;
30
31 _seek_position = pos;
32 _seek_weight = seek_wt;
33
34 _seek_direction = _seek_position - _ai_char->_ai_char_np.get_pos(_ai_char->_window_render);
35 _seek_direction.normalize();
36
37 _seek_done = false;
38}
39
40Seek::~Seek() {
41}
42
43/**
44 * This function performs the seek and returns a seek force which is used in
45 * the calculate_prioritized function. This function is not to be used by the
46 * user.
47 */
48LVecBase3 Seek::do_seek() {
49 double target_distance = (_seek_position - _ai_char->_ai_char_np.get_pos(_ai_char->_window_render)).length();
50
51 if(int(target_distance) == 0) {
52 _seek_done = true;
53 _ai_char->_steering->_steering_force = LVecBase3(0.0, 0.0, 0.0);
54 _ai_char->_steering->turn_off("seek");
55 return(LVecBase3(0.0, 0.0, 0.0));
56 }
57
58 LVecBase3 desired_force = _seek_direction * _ai_char->_movt_force;
59 return(desired_force);
60}
void turn_off(std::string ai_type)
This function turns off any aiBehavior which is passed as a string.
NodePath is the fundamental system for disambiguating instances, and also provides a higher-level int...
Definition nodePath.h:159
LPoint3 get_pos() const
Retrieves the translation component of the transform.
LVecBase3 do_seek()
This function performs the seek and returns a seek force which is used in the calculate_prioritized f...
Definition seek.cxx:48
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.