1 // SuperTuxKart - a fun racing game with go-kart
2 // Copyright (C) 2019 SuperTuxKart-Team
3 //
4 // This program is free software; you can redistribute it and/or
5 // modify it under the terms of the GNU General Public License
6 // as published by the Free Software Foundation; either version 3
7 // of the License, or (at your option) any later version.
8 //
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with this program; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17
18 #include "tracks/check_trigger.hpp"
19 #include "karts/abstract_kart.hpp"
20 #include "modes/world.hpp"
21 #include "utils/time.hpp"
22
23 /** Constructor for a check trigger.
24 * \param center Center point of this trigger
25 * \param distance Kart within it between center will trigger
26 * \param triggering_function callback function to be used when triggered
27 */
CheckTrigger(const Vec3 & center,float distance,std::function<void (int)> triggering_function)28 CheckTrigger::CheckTrigger(const Vec3& center, float distance,
29 std::function<void(int)> triggering_function)
30 : CheckStructure(),
31 m_center(center), m_distance2(distance * distance),
32 m_triggering_function(triggering_function)
33 {
34 m_last_triggered_time = StkTime::getMonoTimeMs();
35 } // CheckSphere
36
37 // ----------------------------------------------------------------------------
38 /** Copied from item state.
39 */
isTriggered(const Vec3 & old_pos,const Vec3 & new_pos,int kart_id)40 bool CheckTrigger::isTriggered(const Vec3 &old_pos, const Vec3 &new_pos,
41 int kart_id)
42 {
43 // kart_id will be -1 if called by CheckManager::getChecklineTriggering
44 if (kart_id < 0 || kart_id >= (int)World::getWorld()->getNumKarts())
45 return false;
46 if (m_last_triggered_time + 2000 > StkTime::getMonoTimeMs())
47 return false;
48 AbstractKart* k = World::getWorld()->getKart(kart_id);
49 if ((k->getXYZ() - m_center).length2() < m_distance2)
50 {
51 m_last_triggered_time = StkTime::getMonoTimeMs();
52 return true;
53 }
54 return false;
55 } // isTriggered
56