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Diffstat (limited to 'modules/bullet/area_bullet.cpp')
| -rw-r--r-- | modules/bullet/area_bullet.cpp | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/modules/bullet/area_bullet.cpp b/modules/bullet/area_bullet.cpp new file mode 100644 index 0000000000..54024b4f90 --- /dev/null +++ b/modules/bullet/area_bullet.cpp @@ -0,0 +1,284 @@ +/*************************************************************************/ +/* area_bullet.cpp */ +/* Author: AndreaCatania */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* http://www.godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#include "area_bullet.h" +#include "BulletCollision/CollisionDispatch/btGhostObject.h" +#include "btBulletCollisionCommon.h" +#include "bullet_types_converter.h" +#include "bullet_utilities.h" +#include "collision_object_bullet.h" +#include "space_bullet.h" + +AreaBullet::AreaBullet() + : RigidCollisionObjectBullet(CollisionObjectBullet::TYPE_AREA), + monitorable(true), + isScratched(false), + spOv_mode(PhysicsServer::AREA_SPACE_OVERRIDE_DISABLED), + spOv_gravityPoint(false), + spOv_gravityPointDistanceScale(0), + spOv_gravityPointAttenuation(1), + spOv_gravityVec(0, -1, 0), + spOv_gravityMag(10), + spOv_linearDump(0.1), + spOv_angularDump(1), + spOv_priority(0) { + + btGhost = bulletnew(btGhostObject); + btGhost->setCollisionShape(compoundShape); + setupBulletCollisionObject(btGhost); + /// Collision objects with a callback still have collision response with dynamic rigid bodies. + /// In order to use collision objects as trigger, you have to disable the collision response. + set_collision_enabled(false); + + for (int i = 0; i < 5; ++i) + call_event_res_ptr[i] = &call_event_res[i]; +} + +AreaBullet::~AreaBullet() { + remove_all_overlapping_instantly(); +} + +void AreaBullet::dispatch_callbacks() { + if (!isScratched) + return; + isScratched = false; + + // Reverse order because I've to remove EXIT objects + for (int i = overlappingObjects.size() - 1; 0 <= i; --i) { + OverlappingObjectData &otherObj = overlappingObjects[i]; + + switch (otherObj.state) { + case OVERLAP_STATE_ENTER: + otherObj.state = OVERLAP_STATE_INSIDE; + call_event(otherObj.object, PhysicsServer::AREA_BODY_ADDED); + otherObj.object->on_enter_area(this); + break; + case OVERLAP_STATE_EXIT: + call_event(otherObj.object, PhysicsServer::AREA_BODY_REMOVED); + otherObj.object->on_exit_area(this); + overlappingObjects.remove(i); // Remove after callback + break; + } + } +} + +void AreaBullet::call_event(CollisionObjectBullet *p_otherObject, PhysicsServer::AreaBodyStatus p_status) { + + InOutEventCallback &event = eventsCallbacks[static_cast<int>(p_otherObject->getType())]; + Object *areaGodoObject = ObjectDB::get_instance(event.event_callback_id); + + if (!areaGodoObject) { + event.event_callback_id = 0; + return; + } + + call_event_res[0] = p_status; + call_event_res[1] = p_otherObject->get_self(); // Other body + call_event_res[2] = p_otherObject->get_instance_id(); // instance ID + call_event_res[3] = 0; // other_body_shape ID + call_event_res[4] = 0; // self_shape ID + + Variant::CallError outResp; + areaGodoObject->call(event.event_callback_method, (const Variant **)call_event_res_ptr, 5, outResp); +} + +void AreaBullet::scratch() { + if (isScratched) + return; + isScratched = true; +} + +void AreaBullet::remove_all_overlapping_instantly() { + CollisionObjectBullet *supportObject; + for (int i = overlappingObjects.size() - 1; 0 <= i; --i) { + supportObject = overlappingObjects[i].object; + call_event(supportObject, PhysicsServer::AREA_BODY_REMOVED); + supportObject->on_exit_area(this); + } + overlappingObjects.clear(); +} + +void AreaBullet::remove_overlapping_instantly(CollisionObjectBullet *p_object) { + CollisionObjectBullet *supportObject; + for (int i = overlappingObjects.size() - 1; 0 <= i; --i) { + supportObject = overlappingObjects[i].object; + if (supportObject == p_object) { + call_event(supportObject, PhysicsServer::AREA_BODY_REMOVED); + supportObject->on_exit_area(this); + overlappingObjects.remove(i); + break; + } + } +} + +int AreaBullet::find_overlapping_object(CollisionObjectBullet *p_colObj) { + const int size = overlappingObjects.size(); + for (int i = 0; i < size; ++i) { + if (overlappingObjects[i].object == p_colObj) { + return i; + } + } + return -1; +} + +void AreaBullet::set_monitorable(bool p_monitorable) { + monitorable = p_monitorable; +} + +bool AreaBullet::is_monitoring() const { + return get_godot_object_flags() & GOF_IS_MONITORING_AREA; +} + +void AreaBullet::reload_body() { + if (space) { + space->remove_area(this); + space->add_area(this); + } +} + +void AreaBullet::set_space(SpaceBullet *p_space) { + // Clear the old space if there is one + if (space) { + isScratched = false; + + // Remove this object form the physics world + space->remove_area(this); + } + + space = p_space; + + if (space) { + space->add_area(this); + } +} + +void AreaBullet::on_collision_filters_change() { + if (space) { + space->reload_collision_filters(this); + } +} + +void AreaBullet::add_overlap(CollisionObjectBullet *p_otherObject) { + scratch(); + overlappingObjects.push_back(OverlappingObjectData(p_otherObject, OVERLAP_STATE_ENTER)); + p_otherObject->notify_new_overlap(this); +} + +void AreaBullet::put_overlap_as_exit(int p_index) { + scratch(); + overlappingObjects[p_index].state = OVERLAP_STATE_EXIT; +} + +void AreaBullet::put_overlap_as_inside(int p_index) { + // This check is required to be sure this body was inside + if (OVERLAP_STATE_DIRTY == overlappingObjects[p_index].state) { + overlappingObjects[p_index].state = OVERLAP_STATE_INSIDE; + } +} + +void AreaBullet::set_param(PhysicsServer::AreaParameter p_param, const Variant &p_value) { + switch (p_param) { + case PhysicsServer::AREA_PARAM_GRAVITY: + set_spOv_gravityMag(p_value); + break; + case PhysicsServer::AREA_PARAM_GRAVITY_VECTOR: + set_spOv_gravityVec(p_value); + break; + case PhysicsServer::AREA_PARAM_LINEAR_DAMP: + set_spOv_linearDump(p_value); + break; + case PhysicsServer::AREA_PARAM_ANGULAR_DAMP: + set_spOv_angularDump(p_value); + break; + case PhysicsServer::AREA_PARAM_PRIORITY: + set_spOv_priority(p_value); + break; + case PhysicsServer::AREA_PARAM_GRAVITY_IS_POINT: + set_spOv_gravityPoint(p_value); + break; + case PhysicsServer::AREA_PARAM_GRAVITY_DISTANCE_SCALE: + set_spOv_gravityPointDistanceScale(p_value); + break; + case PhysicsServer::AREA_PARAM_GRAVITY_POINT_ATTENUATION: + set_spOv_gravityPointAttenuation(p_value); + break; + default: + print_line("The Bullet areas dosn't suppot this param: " + itos(p_param)); + } +} + +Variant AreaBullet::get_param(PhysicsServer::AreaParameter p_param) const { + switch (p_param) { + case PhysicsServer::AREA_PARAM_GRAVITY: + return spOv_gravityMag; + case PhysicsServer::AREA_PARAM_GRAVITY_VECTOR: + return spOv_gravityVec; + case PhysicsServer::AREA_PARAM_LINEAR_DAMP: + return spOv_linearDump; + case PhysicsServer::AREA_PARAM_ANGULAR_DAMP: + return spOv_angularDump; + case PhysicsServer::AREA_PARAM_PRIORITY: + return spOv_priority; + case PhysicsServer::AREA_PARAM_GRAVITY_IS_POINT: + return spOv_gravityPoint; + case PhysicsServer::AREA_PARAM_GRAVITY_DISTANCE_SCALE: + return spOv_gravityPointDistanceScale; + case PhysicsServer::AREA_PARAM_GRAVITY_POINT_ATTENUATION: + return spOv_gravityPointAttenuation; + default: + print_line("The Bullet areas dosn't suppot this param: " + itos(p_param)); + return Variant(); + } +} + +void AreaBullet::set_event_callback(Type p_callbackObjectType, ObjectID p_id, const StringName &p_method) { + InOutEventCallback &ev = eventsCallbacks[static_cast<int>(p_callbackObjectType)]; + ev.event_callback_id = p_id; + ev.event_callback_method = p_method; + + /// Set if monitoring + if (eventsCallbacks[0].event_callback_id || eventsCallbacks[1].event_callback_id) { + set_godot_object_flags(get_godot_object_flags() | GOF_IS_MONITORING_AREA); + } else { + set_godot_object_flags(get_godot_object_flags() & (~GOF_IS_MONITORING_AREA)); + } +} + +bool AreaBullet::has_event_callback(Type p_callbackObjectType) { + return eventsCallbacks[static_cast<int>(p_callbackObjectType)].event_callback_id; +} + +void AreaBullet::on_enter_area(AreaBullet *p_area) { +} + +void AreaBullet::on_exit_area(AreaBullet *p_area) { + CollisionObjectBullet::on_exit_area(p_area); +} |