433 lines
13 KiB
C++
433 lines
13 KiB
C++
/*************************************************************************/
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/* space_2d_sw.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) 2007-2014 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 "space_2d_sw.h"
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#include "collision_solver_2d_sw.h"
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#include "physics_2d_server_sw.h"
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bool Physics2DDirectSpaceStateSW::intersect_ray(const Vector2& p_from, const Vector2& p_to,RayResult &r_result,const Set<RID>& p_exclude,uint32_t p_user_mask) {
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ERR_FAIL_COND_V(space->locked,false);
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Vector2 begin,end;
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Vector2 normal;
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begin=p_from;
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end=p_to;
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normal=(end-begin).normalized();
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int amount = space->broadphase->cull_segment(begin,end,space->intersection_query_results,Space2DSW::INTERSECTION_QUERY_MAX,space->intersection_query_subindex_results);
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//todo, create another array tha references results, compute AABBs and check closest point to ray origin, sort, and stop evaluating results when beyond first collision
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bool collided=false;
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Vector2 res_point,res_normal;
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int res_shape;
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const CollisionObject2DSW *res_obj;
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real_t min_d=1e10;
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for(int i=0;i<amount;i++) {
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if (space->intersection_query_results[i]->get_type()==CollisionObject2DSW::TYPE_AREA)
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continue; //ignore area
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if (p_exclude.has( space->intersection_query_results[i]->get_self()))
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continue;
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const CollisionObject2DSW *col_obj=space->intersection_query_results[i];
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int shape_idx=space->intersection_query_subindex_results[i];
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Matrix32 inv_xform = col_obj->get_shape_inv_transform(shape_idx) * col_obj->get_inv_transform();
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Vector2 local_from = inv_xform.xform(begin);
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Vector2 local_to = inv_xform.xform(end);
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/*local_from = col_obj->get_inv_transform().xform(begin);
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local_from = col_obj->get_shape_inv_transform(shape_idx).xform(local_from);
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local_to = col_obj->get_inv_transform().xform(end);
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local_to = col_obj->get_shape_inv_transform(shape_idx).xform(local_to);*/
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const Shape2DSW *shape = col_obj->get_shape(shape_idx);
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Vector2 shape_point,shape_normal;
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if (shape->intersect_segment(local_from,local_to,shape_point,shape_normal)) {
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//print_line("inters sgment!");
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Matrix32 xform = col_obj->get_transform() * col_obj->get_shape_transform(shape_idx);
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shape_point=xform.xform(shape_point);
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real_t ld = normal.dot(shape_point);
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if (ld<min_d) {
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min_d=ld;
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res_point=shape_point;
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res_normal=inv_xform.basis_xform_inv(shape_normal).normalized();
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res_shape=shape_idx;
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res_obj=col_obj;
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collided=true;
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}
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}
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}
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if (!collided)
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return false;
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r_result.collider_id=res_obj->get_instance_id();
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if (r_result.collider_id!=0)
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r_result.collider=ObjectDB::get_instance(r_result.collider_id);
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r_result.normal=res_normal;
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r_result.position=res_point;
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r_result.rid=res_obj->get_self();
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r_result.shape=res_shape;
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return true;
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}
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int Physics2DDirectSpaceStateSW::intersect_shape(const RID& p_shape, const Matrix32& p_xform,ShapeResult *r_results,int p_result_max,const Set<RID>& p_exclude,uint32_t p_user_mask) {
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if (p_result_max<=0)
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return 0;
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Shape2DSW *shape = static_cast<Physics2DServerSW*>(Physics2DServer::get_singleton())->shape_owner.get(p_shape);
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ERR_FAIL_COND_V(!shape,0);
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Rect2 aabb = p_xform.xform(shape->get_aabb());
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int amount = space->broadphase->cull_aabb(aabb,space->intersection_query_results,Space2DSW::INTERSECTION_QUERY_MAX,space->intersection_query_subindex_results);
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bool collided=false;
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int cc=0;
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for(int i=0;i<amount;i++) {
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if (cc>=p_result_max)
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break;
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if (space->intersection_query_results[i]->get_type()==CollisionObject2DSW::TYPE_AREA)
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continue; //ignore area
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if (p_exclude.has( space->intersection_query_results[i]->get_self()))
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continue;
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const CollisionObject2DSW *col_obj=space->intersection_query_results[i];
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int shape_idx=space->intersection_query_subindex_results[i];
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if (!CollisionSolver2DSW::solve_static(shape,p_xform,p_xform.affine_inverse(),col_obj->get_shape(shape_idx),col_obj->get_transform() * col_obj->get_shape_transform(shape_idx), col_obj->get_inv_transform() * col_obj->get_shape_inv_transform(shape_idx),NULL,NULL,NULL))
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continue;
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r_results[cc].collider_id=col_obj->get_instance_id();
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if (r_results[cc].collider_id!=0)
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r_results[cc].collider=ObjectDB::get_instance(r_results[cc].collider_id);
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r_results[cc].rid=col_obj->get_self();
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r_results[cc].shape=shape_idx;
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cc++;
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}
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return cc;
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}
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Physics2DDirectSpaceStateSW::Physics2DDirectSpaceStateSW() {
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space=NULL;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////
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void* Space2DSW::_broadphase_pair(CollisionObject2DSW *A,int p_subindex_A,CollisionObject2DSW *B,int p_subindex_B,void *p_self) {
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CollisionObject2DSW::Type type_A=A->get_type();
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CollisionObject2DSW::Type type_B=B->get_type();
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if (type_A>type_B) {
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SWAP(A,B);
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SWAP(p_subindex_A,p_subindex_B);
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SWAP(type_A,type_B);
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}
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Space2DSW *self = (Space2DSW*)p_self;
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if (type_A==CollisionObject2DSW::TYPE_AREA) {
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ERR_FAIL_COND_V(type_B!=CollisionObject2DSW::TYPE_BODY,NULL);
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Area2DSW *area=static_cast<Area2DSW*>(A);
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Body2DSW *body=static_cast<Body2DSW*>(B);
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AreaPair2DSW *area_pair = memnew(AreaPair2DSW(body,p_subindex_B,area,p_subindex_A) );
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return area_pair;
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} else {
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BodyPair2DSW *b = memnew( BodyPair2DSW((Body2DSW*)A,p_subindex_A,(Body2DSW*)B,p_subindex_B) );
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return b;
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}
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return NULL;
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}
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void Space2DSW::_broadphase_unpair(CollisionObject2DSW *A,int p_subindex_A,CollisionObject2DSW *B,int p_subindex_B,void *p_data,void *p_self) {
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Space2DSW *self = (Space2DSW*)p_self;
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Constraint2DSW *c = (Constraint2DSW*)p_data;
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memdelete(c);
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}
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const SelfList<Body2DSW>::List& Space2DSW::get_active_body_list() const {
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return active_list;
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}
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void Space2DSW::body_add_to_active_list(SelfList<Body2DSW>* p_body) {
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active_list.add(p_body);
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}
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void Space2DSW::body_remove_from_active_list(SelfList<Body2DSW>* p_body) {
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active_list.remove(p_body);
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}
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void Space2DSW::body_add_to_inertia_update_list(SelfList<Body2DSW>* p_body) {
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inertia_update_list.add(p_body);
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}
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void Space2DSW::body_remove_from_inertia_update_list(SelfList<Body2DSW>* p_body) {
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inertia_update_list.remove(p_body);
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}
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BroadPhase2DSW *Space2DSW::get_broadphase() {
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return broadphase;
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}
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void Space2DSW::add_object(CollisionObject2DSW *p_object) {
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ERR_FAIL_COND( objects.has(p_object) );
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objects.insert(p_object);
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}
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void Space2DSW::remove_object(CollisionObject2DSW *p_object) {
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ERR_FAIL_COND( !objects.has(p_object) );
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objects.erase(p_object);
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}
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const Set<CollisionObject2DSW*> &Space2DSW::get_objects() const {
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return objects;
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}
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void Space2DSW::body_add_to_state_query_list(SelfList<Body2DSW>* p_body) {
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state_query_list.add(p_body);
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}
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void Space2DSW::body_remove_from_state_query_list(SelfList<Body2DSW>* p_body) {
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state_query_list.remove(p_body);
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}
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void Space2DSW::area_add_to_monitor_query_list(SelfList<Area2DSW>* p_area) {
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monitor_query_list.add(p_area);
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}
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void Space2DSW::area_remove_from_monitor_query_list(SelfList<Area2DSW>* p_area) {
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monitor_query_list.remove(p_area);
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}
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void Space2DSW::area_add_to_moved_list(SelfList<Area2DSW>* p_area) {
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area_moved_list.add(p_area);
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}
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void Space2DSW::area_remove_from_moved_list(SelfList<Area2DSW>* p_area) {
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area_moved_list.remove(p_area);
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}
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const SelfList<Area2DSW>::List& Space2DSW::get_moved_area_list() const {
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return area_moved_list;
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}
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void Space2DSW::call_queries() {
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while(state_query_list.first()) {
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Body2DSW * b = state_query_list.first()->self();
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b->call_queries();
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state_query_list.remove(state_query_list.first());
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}
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while(monitor_query_list.first()) {
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Area2DSW * a = monitor_query_list.first()->self();
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a->call_queries();
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monitor_query_list.remove(monitor_query_list.first());
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}
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}
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void Space2DSW::setup() {
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while(inertia_update_list.first()) {
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inertia_update_list.first()->self()->update_inertias();
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inertia_update_list.remove(inertia_update_list.first());
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}
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}
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void Space2DSW::update() {
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broadphase->update();
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}
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void Space2DSW::set_param(Physics2DServer::SpaceParameter p_param, real_t p_value) {
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switch(p_param) {
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case Physics2DServer::SPACE_PARAM_CONTACT_RECYCLE_RADIUS: contact_recycle_radius=p_value; break;
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case Physics2DServer::SPACE_PARAM_CONTACT_MAX_SEPARATION: contact_max_separation=p_value; break;
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case Physics2DServer::SPACE_PARAM_BODY_MAX_ALLOWED_PENETRATION: contact_max_allowed_penetration=p_value; break;
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case Physics2DServer::SPACE_PARAM_BODY_LINEAR_VELOCITY_SLEEP_TRESHOLD: body_linear_velocity_sleep_treshold=p_value; break;
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case Physics2DServer::SPACE_PARAM_BODY_ANGULAR_VELOCITY_SLEEP_TRESHOLD: body_angular_velocity_sleep_treshold=p_value; break;
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case Physics2DServer::SPACE_PARAM_BODY_TIME_TO_SLEEP: body_time_to_sleep=p_value; break;
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case Physics2DServer::SPACE_PARAM_BODY_ANGULAR_VELOCITY_DAMP_RATIO: body_angular_velocity_damp_ratio=p_value; break;
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case Physics2DServer::SPACE_PARAM_CONSTRAINT_DEFAULT_BIAS: constraint_bias=p_value; break;
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}
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}
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real_t Space2DSW::get_param(Physics2DServer::SpaceParameter p_param) const {
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switch(p_param) {
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case Physics2DServer::SPACE_PARAM_CONTACT_RECYCLE_RADIUS: return contact_recycle_radius;
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case Physics2DServer::SPACE_PARAM_CONTACT_MAX_SEPARATION: return contact_max_separation;
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case Physics2DServer::SPACE_PARAM_BODY_MAX_ALLOWED_PENETRATION: return contact_max_allowed_penetration;
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case Physics2DServer::SPACE_PARAM_BODY_LINEAR_VELOCITY_SLEEP_TRESHOLD: return body_linear_velocity_sleep_treshold;
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case Physics2DServer::SPACE_PARAM_BODY_ANGULAR_VELOCITY_SLEEP_TRESHOLD: return body_angular_velocity_sleep_treshold;
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case Physics2DServer::SPACE_PARAM_BODY_TIME_TO_SLEEP: return body_time_to_sleep;
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case Physics2DServer::SPACE_PARAM_BODY_ANGULAR_VELOCITY_DAMP_RATIO: return body_angular_velocity_damp_ratio;
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case Physics2DServer::SPACE_PARAM_CONSTRAINT_DEFAULT_BIAS: return constraint_bias;
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}
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return 0;
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}
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void Space2DSW::lock() {
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locked=true;
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}
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void Space2DSW::unlock() {
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locked=false;
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}
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bool Space2DSW::is_locked() const {
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return locked;
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}
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Physics2DDirectSpaceStateSW *Space2DSW::get_direct_state() {
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return direct_access;
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}
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Space2DSW::Space2DSW() {
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locked=false;
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contact_recycle_radius=0.01;
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contact_max_separation=0.05;
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contact_max_allowed_penetration= 0.01;
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constraint_bias = 0.01;
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body_linear_velocity_sleep_treshold=0.01;
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body_angular_velocity_sleep_treshold=(8.0 / 180.0 * Math_PI);
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body_time_to_sleep=0.5;
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body_angular_velocity_damp_ratio=15;
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broadphase = BroadPhase2DSW::create_func();
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broadphase->set_pair_callback(_broadphase_pair,this);
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broadphase->set_unpair_callback(_broadphase_unpair,this);
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area=NULL;
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direct_access = memnew( Physics2DDirectSpaceStateSW );
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direct_access->space=this;
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}
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Space2DSW::~Space2DSW() {
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memdelete(broadphase);
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memdelete( direct_access );
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}
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