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193 lines
5.6 KiB
C++
193 lines
5.6 KiB
C++
/*************************************************************************/
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/* broad_phase_2d_basic.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2015 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "broad_phase_2d_basic.h"
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ID BroadPhase2DBasic::create(CollisionObject2DSW *p_object_, int p_subindex) {
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current++;
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Element e;
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e.owner=p_object_;
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e._static=false;
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e.subindex=p_subindex;
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element_map[current]=e;
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return current;
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}
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void BroadPhase2DBasic::move(ID p_id, const Rect2& p_aabb) {
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Map<ID,Element>::Element *E=element_map.find(p_id);
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ERR_FAIL_COND(!E);
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E->get().aabb=p_aabb;
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}
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void BroadPhase2DBasic::set_static(ID p_id, bool p_static) {
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Map<ID,Element>::Element *E=element_map.find(p_id);
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ERR_FAIL_COND(!E);
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E->get()._static=p_static;
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}
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void BroadPhase2DBasic::remove(ID p_id) {
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Map<ID,Element>::Element *E=element_map.find(p_id);
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ERR_FAIL_COND(!E);
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element_map.erase(E);
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}
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CollisionObject2DSW *BroadPhase2DBasic::get_object(ID p_id) const {
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const Map<ID,Element>::Element *E=element_map.find(p_id);
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ERR_FAIL_COND_V(!E,NULL);
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return E->get().owner;
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}
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bool BroadPhase2DBasic::is_static(ID p_id) const {
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const Map<ID,Element>::Element *E=element_map.find(p_id);
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ERR_FAIL_COND_V(!E,false);
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return E->get()._static;
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}
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int BroadPhase2DBasic::get_subindex(ID p_id) const {
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const Map<ID,Element>::Element *E=element_map.find(p_id);
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ERR_FAIL_COND_V(!E,-1);
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return E->get().subindex;
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}
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int BroadPhase2DBasic::cull_segment(const Vector2& p_from, const Vector2& p_to,CollisionObject2DSW** p_results,int p_max_results,int *p_result_indices) {
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int rc=0;
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for (Map<ID,Element>::Element *E=element_map.front();E;E=E->next()) {
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const Rect2 aabb=E->get().aabb;
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if (aabb.intersects_segment(p_from,p_to)) {
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p_results[rc]=E->get().owner;
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p_result_indices[rc]=E->get().subindex;
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rc++;
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if (rc>=p_max_results)
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break;
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}
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}
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return rc;
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}
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int BroadPhase2DBasic::cull_aabb(const Rect2& p_aabb,CollisionObject2DSW** p_results,int p_max_results,int *p_result_indices) {
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int rc=0;
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for (Map<ID,Element>::Element *E=element_map.front();E;E=E->next()) {
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const Rect2 aabb=E->get().aabb;
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if (aabb.intersects(p_aabb)) {
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p_results[rc]=E->get().owner;
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p_result_indices[rc]=E->get().subindex;
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rc++;
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if (rc>=p_max_results)
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break;
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}
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}
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return rc;
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}
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void BroadPhase2DBasic::set_pair_callback(PairCallback p_pair_callback,void *p_userdata) {
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pair_userdata=p_userdata;
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pair_callback=p_pair_callback;
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}
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void BroadPhase2DBasic::set_unpair_callback(UnpairCallback p_pair_callback,void *p_userdata) {
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unpair_userdata=p_userdata;
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unpair_callback=p_pair_callback;
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}
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void BroadPhase2DBasic::update() {
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// recompute pairs
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for(Map<ID,Element>::Element *I=element_map.front();I;I=I->next()) {
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for(Map<ID,Element>::Element *J=I->next();J;J=J->next()) {
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Element *elem_A=&I->get();
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Element *elem_B=&J->get();
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if (elem_A->owner == elem_B->owner)
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continue;
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bool pair_ok=elem_A->aabb.intersects( elem_B->aabb ) && (!elem_A->_static || !elem_B->_static );
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PairKey key(I->key(),J->key());
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Map<PairKey,void*>::Element *E=pair_map.find(key);
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if (!pair_ok && E) {
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if (unpair_callback)
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unpair_callback(elem_A->owner,elem_A->subindex,elem_B->owner,elem_B->subindex,E->get(),unpair_userdata);
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pair_map.erase(key);
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}
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if (pair_ok && !E) {
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void *data=NULL;
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if (pair_callback)
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data=pair_callback(elem_A->owner,elem_A->subindex,elem_B->owner,elem_B->subindex,unpair_userdata);
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pair_map.insert(key,data);
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}
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}
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}
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}
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BroadPhase2DSW *BroadPhase2DBasic::_create() {
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return memnew( BroadPhase2DBasic );
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}
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BroadPhase2DBasic::BroadPhase2DBasic() {
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current=1;
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unpair_callback=NULL;
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unpair_userdata=NULL;
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pair_callback=NULL;
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pair_userdata=NULL;
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}
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