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Diffstat (limited to 'servers/arvr_server.cpp')
| -rw-r--r-- | servers/arvr_server.cpp | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/servers/arvr_server.cpp b/servers/arvr_server.cpp new file mode 100644 index 0000000000..78b3e514e6 --- /dev/null +++ b/servers/arvr_server.cpp @@ -0,0 +1,313 @@ +/*************************************************************************/ +/* arvr_server.cpp */ +/*************************************************************************/ +/* 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 "arvr_server.h" +#include "arvr/arvr_interface.h" +#include "arvr/arvr_positional_tracker.h" +#include "project_settings.h" + +ARVRServer *ARVRServer::singleton = NULL; + +ARVRServer *ARVRServer::get_singleton() { + return singleton; +}; + +void ARVRServer::_bind_methods() { + ClassDB::bind_method(D_METHOD("get_world_scale"), &ARVRServer::get_world_scale); + ClassDB::bind_method(D_METHOD("set_world_scale"), &ARVRServer::set_world_scale); + ClassDB::bind_method(D_METHOD("get_reference_frame"), &ARVRServer::get_reference_frame); + ClassDB::bind_method(D_METHOD("request_reference_frame", "ignore_tilt", "keep_height"), &ARVRServer::request_reference_frame); + + ADD_PROPERTY(PropertyInfo(Variant::REAL, "world_scale"), "set_world_scale", "get_world_scale"); + + ClassDB::bind_method(D_METHOD("get_interface_count"), &ARVRServer::get_interface_count); + ClassDB::bind_method(D_METHOD("get_interface:ARVRInterface", "idx"), &ARVRServer::get_interface); + ClassDB::bind_method(D_METHOD("find_interface:ARVRInterface", "name"), &ARVRServer::find_interface); + ClassDB::bind_method(D_METHOD("get_tracker_count"), &ARVRServer::get_tracker_count); + ClassDB::bind_method(D_METHOD("get_tracker:ARVRPositionalTracker", "idx"), &ARVRServer::get_tracker); + + ClassDB::bind_method(D_METHOD("set_primary_interface"), &ARVRServer::set_primary_interface); + + ClassDB::bind_method(D_METHOD("add_interface"), &ARVRServer::add_interface); + ClassDB::bind_method(D_METHOD("remove_interface"), &ARVRServer::remove_interface); + + BIND_CONSTANT(TRACKER_CONTROLLER); + BIND_CONSTANT(TRACKER_BASESTATION); + BIND_CONSTANT(TRACKER_ANCHOR); + BIND_CONSTANT(TRACKER_UNKNOWN); + BIND_CONSTANT(TRACKER_ANY_KNOWN); + BIND_CONSTANT(TRACKER_ANY); + + ADD_SIGNAL(MethodInfo("interface_added", PropertyInfo(Variant::STRING, "name"))); + ADD_SIGNAL(MethodInfo("interface_removed", PropertyInfo(Variant::STRING, "name"))); + + ADD_SIGNAL(MethodInfo("tracker_added", PropertyInfo(Variant::STRING, "name"), PropertyInfo(Variant::INT, "type"))); + ADD_SIGNAL(MethodInfo("tracker_removed", PropertyInfo(Variant::STRING, "name"))); +}; + +real_t ARVRServer::get_world_scale() const { + return world_scale; +}; + +void ARVRServer::set_world_scale(real_t p_world_scale) { + if (world_scale < 0.01) { + world_scale = 0.01; + } else if (world_scale > 1000.0) { + world_scale = 1000.0; + }; + + world_scale = p_world_scale; +}; + +Transform ARVRServer::get_world_origin() const { + return world_origin; +}; + +void ARVRServer::set_world_origin(const Transform p_world_origin) { + world_origin = p_world_origin; +}; + +Transform ARVRServer::get_reference_frame() const { + return reference_frame; +}; + +void ARVRServer::request_reference_frame(bool p_ignore_tilt, bool p_keep_height) { + if (primary_interface != NULL) { + // clear our current reference frame or we'll end up double adjusting it + reference_frame = Transform(); + + // requesting our EYE_MONO transform should return our current HMD position + Transform new_reference_frame = primary_interface->get_transform_for_eye(ARVRInterface::EYE_MONO, Transform()); + + // remove our tilt + if (p_ignore_tilt) { + // take the Y out of our Z + new_reference_frame.basis.set_axis(2, Vector3(new_reference_frame.basis.elements[0][2], 0.0, new_reference_frame.basis.elements[2][2]).normalized()); + + // Y is straight up + new_reference_frame.basis.set_axis(1, Vector3(0.0, 1.0, 0.0)); + + // and X is our cross reference + new_reference_frame.basis.set_axis(0, new_reference_frame.basis.get_axis(1).cross(new_reference_frame.basis.get_axis(2)).normalized()); + }; + + // don't negate our height + if (p_keep_height) { + new_reference_frame.origin.y = 0.0; + }; + + reference_frame = new_reference_frame.inverse(); + }; +}; + +void ARVRServer::add_interface(const Ref<ARVRInterface> &p_interface) { + ERR_FAIL_COND(p_interface.is_null()); + + int idx = -1; + for (int i = 0; i < interfaces.size(); i++) { + + if (interfaces[i] == p_interface) { + ERR_PRINT("Interface was already added"); + return; + }; + }; + + print_line("Registered interface " + p_interface->get_name()); + + interfaces.push_back(p_interface); + emit_signal("interface_added", p_interface->get_name()); +}; + +void ARVRServer::remove_interface(const Ref<ARVRInterface> &p_interface) { + ERR_FAIL_COND(p_interface.is_null()); + + int idx = -1; + for (int i = 0; i < interfaces.size(); i++) { + + if (interfaces[i] == p_interface) { + + idx = i; + break; + }; + }; + + ERR_FAIL_COND(idx == -1); + + print_line("Removed interface" + p_interface->get_name()); + + emit_signal("interface_removed", p_interface->get_name()); + interfaces.remove(idx); +}; + +int ARVRServer::get_interface_count() const { + return interfaces.size(); +}; + +Ref<ARVRInterface> ARVRServer::get_interface(int p_index) const { + ERR_FAIL_INDEX_V(p_index, interfaces.size(), NULL); + + return interfaces[p_index]; +}; + +Ref<ARVRInterface> ARVRServer::find_interface(const String &p_name) const { + int idx = -1; + for (int i = 0; i < interfaces.size(); i++) { + + if (interfaces[i]->get_name() == p_name) { + + idx = i; + break; + }; + }; + + ERR_FAIL_COND_V(idx == -1, NULL); + + return interfaces[idx]; +}; + +/* + A little extra info on the tracker ids, these are unique per tracker type so we get soem consistency in recognising our trackers, specifically controllers. + + The first controller that is turned of will get ID 1, the second will get ID 2, etc. + The magic happens when one of the controllers is turned off, say controller 1 turns off, controller 2 will remain controller 2, controller 3 will remain controller 3. + If controller number 1 is turned on again it again gets ID 1 unless another new controller was turned on since. + + The most likely scenario however is a controller that runs out of battery and another controller being used to replace it. + Because the controllers are often linked to physical objects, say you're holding a shield in controller 1, your left hand, and a gun in controller 2, your right hand, and controller 1 dies: + - using our tracker index would suddenly make the gun disappear and the shield jump into your right hand because controller 2 becomes controller 1. + - using this approach the shield disappears or is no longer tracked, but the gun stays firmly in your right hand because that is still controller 2, further more, if controller 1 is replaced the shield will return. +*/ + +bool ARVRServer::is_tracker_id_in_use_for_type(TrackerType p_tracker_type, int p_tracker_id) const { + for (int i = 0; i < trackers.size(); i++) { + if (trackers[i]->get_type() == p_tracker_type && trackers[i]->get_tracker_id() == p_tracker_id) { + return true; + }; + }; + + // all good + return false; +}; + +int ARVRServer::get_free_tracker_id_for_type(TrackerType p_tracker_type) { + // we start checking at 1, 0 means that it's not a controller.. + int tracker_id = 1; + + while (is_tracker_id_in_use_for_type(p_tracker_type, tracker_id)) { + // try the next one + tracker_id++; + }; + + return tracker_id; +}; + +void ARVRServer::add_tracker(ARVRPositionalTracker *p_tracker) { + ERR_FAIL_NULL(p_tracker); + + trackers.push_back(p_tracker); + emit_signal("tracker_added", p_tracker->get_name(), p_tracker->get_type()); +}; + +void ARVRServer::remove_tracker(ARVRPositionalTracker *p_tracker) { + ERR_FAIL_NULL(p_tracker); + + int idx = -1; + for (int i = 0; i < trackers.size(); i++) { + + if (trackers[i] == p_tracker) { + + idx = i; + break; + }; + }; + + ERR_FAIL_COND(idx == -1); + + emit_signal("tracker_removed", p_tracker->get_name()); + trackers.remove(idx); +}; + +int ARVRServer::get_tracker_count() const { + return trackers.size(); +}; + +ARVRPositionalTracker *ARVRServer::get_tracker(int p_index) const { + ERR_FAIL_INDEX_V(p_index, trackers.size(), NULL); + + return trackers[p_index]; +}; + +ARVRPositionalTracker *ARVRServer::find_by_type_and_id(TrackerType p_tracker_type, int p_tracker_id) const { + ERR_FAIL_COND_V(p_tracker_id == 0, NULL); + + for (int i = 0; i < trackers.size(); i++) { + if (trackers[i]->get_type() == p_tracker_type && trackers[i]->get_tracker_id() == p_tracker_id) { + return trackers[i]; + }; + }; + + return NULL; +}; + +Ref<ARVRInterface> ARVRServer::get_primary_interface() const { + return primary_interface; +}; + +void ARVRServer::set_primary_interface(const Ref<ARVRInterface> &p_primary_interface) { + primary_interface = p_primary_interface; + + print_line("Primary interface set to: " + primary_interface->get_name()); +}; + +void ARVRServer::clear_primary_interface_if(const Ref<ARVRInterface> &p_primary_interface) { + if (primary_interface == p_primary_interface) { + print_line("Clearing primary interface"); + primary_interface.unref(); + }; +}; + +ARVRServer::ARVRServer() { + singleton = this; + world_scale = 1.0; +}; + +ARVRServer::~ARVRServer() { + primary_interface.unref(); + + while (interfaces.size() > 0) { + interfaces.remove(0); + } + + while (trackers.size() > 0) { + trackers.remove(0); + } + + singleton = NULL; +}; |