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/*************************************************************************/
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/* collision_shape.cpp */
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/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
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/* "Software"), to deal in the Software without restriction, including */
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/* 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. */
/* */
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/*************************************************************************/
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# include "collision_shape.h"
# include "scene/resources/box_shape.h"
# include "scene/resources/capsule_shape.h"
# include "scene/resources/concave_polygon_shape.h"
# include "scene/resources/convex_polygon_shape.h"
# include "scene/resources/plane_shape.h"
# include "scene/resources/ray_shape.h"
# include "scene/resources/sphere_shape.h"
# include "servers/visual_server.h"
//TODO: Implement CylinderShape and HeightMapShape?
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# include "core/math/quick_hull.h"
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# include "mesh_instance.h"
# include "physics_body.h"
void CollisionShape : : make_convex_from_brothers ( ) {
Node * p = get_parent ( ) ;
if ( ! p )
return ;
for ( int i = 0 ; i < p - > get_child_count ( ) ; i + + ) {
Node * n = p - > get_child ( i ) ;
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MeshInstance * mi = Object : : cast_to < MeshInstance > ( n ) ;
if ( mi ) {
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Ref < Mesh > m = mi - > get_mesh ( ) ;
if ( m . is_valid ( ) ) {
Ref < Shape > s = m - > create_convex_shape ( ) ;
set_shape ( s ) ;
}
}
}
}
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void CollisionShape : : _update_in_shape_owner ( bool p_xform_only ) {
parent - > shape_owner_set_transform ( owner_id , get_transform ( ) ) ;
if ( p_xform_only )
return ;
parent - > shape_owner_set_disabled ( owner_id , disabled ) ;
}
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void CollisionShape : : _notification ( int p_what ) {
switch ( p_what ) {
case NOTIFICATION_PARENTED : {
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parent = Object : : cast_to < CollisionObject > ( get_parent ( ) ) ;
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if ( parent ) {
owner_id = parent - > create_shape_owner ( this ) ;
if ( shape . is_valid ( ) ) {
parent - > shape_owner_add_shape ( owner_id , shape ) ;
}
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_update_in_shape_owner ( ) ;
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}
} break ;
case NOTIFICATION_ENTER_TREE : {
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if ( parent ) {
_update_in_shape_owner ( ) ;
}
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if ( get_tree ( ) - > is_debugging_collisions_hint ( ) ) {
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_update_debug_shape ( ) ;
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}
} break ;
case NOTIFICATION_LOCAL_TRANSFORM_CHANGED : {
if ( parent ) {
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_update_in_shape_owner ( true ) ;
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}
} break ;
case NOTIFICATION_UNPARENTED : {
if ( parent ) {
parent - > remove_shape_owner ( owner_id ) ;
}
owner_id = 0 ;
parent = NULL ;
} break ;
}
}
void CollisionShape : : resource_changed ( RES res ) {
update_gizmo ( ) ;
}
String CollisionShape : : get_configuration_warning ( ) const {
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if ( ! Object : : cast_to < CollisionObject > ( get_parent ( ) ) ) {
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return TTR ( " CollisionShape only serves to provide a collision shape to a CollisionObject derived node. Please only use it as a child of Area, StaticBody, RigidBody, KinematicBody, etc. to give them a shape. " ) ;
}
if ( ! shape . is_valid ( ) ) {
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return TTR ( " A shape must be provided for CollisionShape to function. Please create a shape resource for it. " ) ;
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}
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if ( shape - > is_class ( " PlaneShape " ) ) {
return TTR ( " Plane shapes don't work well and will be removed in future versions. Please don't use them. " ) ;
}
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return String ( ) ;
}
void CollisionShape : : _bind_methods ( ) {
//not sure if this should do anything
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ClassDB : : bind_method ( D_METHOD ( " resource_changed " , " resource " ) , & CollisionShape : : resource_changed ) ;
ClassDB : : bind_method ( D_METHOD ( " set_shape " , " shape " ) , & CollisionShape : : set_shape ) ;
ClassDB : : bind_method ( D_METHOD ( " get_shape " ) , & CollisionShape : : get_shape ) ;
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ClassDB : : bind_method ( D_METHOD ( " set_disabled " , " enable " ) , & CollisionShape : : set_disabled ) ;
ClassDB : : bind_method ( D_METHOD ( " is_disabled " ) , & CollisionShape : : is_disabled ) ;
ClassDB : : bind_method ( D_METHOD ( " make_convex_from_brothers " ) , & CollisionShape : : make_convex_from_brothers ) ;
ClassDB : : set_method_flags ( " CollisionShape " , " make_convex_from_brothers " , METHOD_FLAGS_DEFAULT | METHOD_FLAG_EDITOR ) ;
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ClassDB : : bind_method ( D_METHOD ( " _shape_changed " ) , & CollisionShape : : _shape_changed ) ;
ClassDB : : bind_method ( D_METHOD ( " _update_debug_shape " ) , & CollisionShape : : _update_debug_shape ) ;
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ADD_PROPERTY ( PropertyInfo ( Variant : : OBJECT , " shape " , PROPERTY_HINT_RESOURCE_TYPE , " Shape " ) , " set_shape " , " get_shape " ) ;
ADD_PROPERTY ( PropertyInfo ( Variant : : BOOL , " disabled " ) , " set_disabled " , " is_disabled " ) ;
}
void CollisionShape : : set_shape ( const Ref < Shape > & p_shape ) {
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if ( ! shape . is_null ( ) ) {
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shape - > unregister_owner ( this ) ;
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shape - > disconnect ( " changed " , this , " _shape_changed " ) ;
}
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shape = p_shape ;
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if ( ! shape . is_null ( ) ) {
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shape - > register_owner ( this ) ;
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shape - > connect ( " changed " , this , " _shape_changed " ) ;
}
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update_gizmo ( ) ;
if ( parent ) {
parent - > shape_owner_clear_shapes ( owner_id ) ;
if ( shape . is_valid ( ) ) {
parent - > shape_owner_add_shape ( owner_id , shape ) ;
}
}
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if ( is_inside_tree ( ) )
_shape_changed ( ) ;
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update_configuration_warning ( ) ;
}
Ref < Shape > CollisionShape : : get_shape ( ) const {
return shape ;
}
void CollisionShape : : set_disabled ( bool p_disabled ) {
disabled = p_disabled ;
update_gizmo ( ) ;
if ( parent ) {
parent - > shape_owner_set_disabled ( owner_id , p_disabled ) ;
}
}
bool CollisionShape : : is_disabled ( ) const {
return disabled ;
}
CollisionShape : : CollisionShape ( ) {
//indicator = VisualServer::get_singleton()->mesh_create();
disabled = false ;
debug_shape = NULL ;
parent = NULL ;
owner_id = 0 ;
set_notify_local_transform ( true ) ;
}
CollisionShape : : ~ CollisionShape ( ) {
if ( ! shape . is_null ( ) )
shape - > unregister_owner ( this ) ;
//VisualServer::get_singleton()->free(indicator);
}
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void CollisionShape : : _update_debug_shape ( ) {
debug_shape_dirty = false ;
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if ( debug_shape ) {
debug_shape - > queue_delete ( ) ;
debug_shape = NULL ;
}
Ref < Shape > s = get_shape ( ) ;
if ( s . is_null ( ) )
return ;
Ref < Mesh > mesh = s - > get_debug_mesh ( ) ;
MeshInstance * mi = memnew ( MeshInstance ) ;
mi - > set_mesh ( mesh ) ;
add_child ( mi ) ;
debug_shape = mi ;
}
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void CollisionShape : : _shape_changed ( ) {
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// If this is a heightfield shape our center may have changed
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if ( parent ) {
_update_in_shape_owner ( true ) ;
}
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if ( is_inside_tree ( ) & & get_tree ( ) - > is_debugging_collisions_hint ( ) & & ! debug_shape_dirty ) {
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debug_shape_dirty = true ;
call_deferred ( " _update_debug_shape " ) ;
}
}