overte-HifiExperiments/libraries/entities-renderer/src/RenderableEntityItem.h
2016-01-15 15:41:34 -08:00

82 lines
2.9 KiB
C++

//
// RenderableEntityItem.h
// interface/src
//
// Created by Brad Hefta-Gaub on 12/6/13.
// Copyright 2013 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#ifndef hifi_RenderableEntityItem_h
#define hifi_RenderableEntityItem_h
#include <render/Scene.h>
#include <EntityItem.h>
// These or the icon "name" used by the render item status value, they correspond to the atlas texture used by the DrawItemStatus
// job in the current rendering pipeline defined as of now (11/2015) in render-utils/RenderDeferredTask.cpp.
enum class RenderItemStatusIcon {
ACTIVE_IN_BULLET = 0,
PACKET_SENT = 1,
PACKET_RECEIVED = 2,
SIMULATION_OWNER = 3,
HAS_ACTIONS = 4,
NONE = 255
};
void makeEntityItemStatusGetters(EntityItemPointer entity, render::Item::Status::Getters& statusGetters);
class RenderableEntityItemProxy {
public:
RenderableEntityItemProxy(EntityItemPointer entity) : entity(entity) { }
typedef render::Payload<RenderableEntityItemProxy> Payload;
typedef Payload::DataPointer Pointer;
EntityItemPointer entity;
};
namespace render {
template <> const ItemKey payloadGetKey(const RenderableEntityItemProxy::Pointer& payload);
template <> const Item::Bound payloadGetBound(const RenderableEntityItemProxy::Pointer& payload);
template <> void payloadRender(const RenderableEntityItemProxy::Pointer& payload, RenderArgs* args);
}
// Mixin class for implementing basic single item rendering
class SimpleRenderableEntityItem {
public:
bool addToScene(EntityItemPointer self, std::shared_ptr<render::Scene> scene, render::PendingChanges& pendingChanges) {
_myItem = scene->allocateID();
auto renderData = std::make_shared<RenderableEntityItemProxy>(self);
auto renderPayload = std::make_shared<RenderableEntityItemProxy::Payload>(renderData);
render::Item::Status::Getters statusGetters;
makeEntityItemStatusGetters(self, statusGetters);
renderPayload->addStatusGetters(statusGetters);
pendingChanges.resetItem(_myItem, renderPayload);
return true;
}
void removeFromScene(EntityItemPointer self, std::shared_ptr<render::Scene> scene, render::PendingChanges& pendingChanges) {
pendingChanges.removeItem(_myItem);
}
private:
render::ItemID _myItem;
};
#define SIMPLE_RENDERABLE() \
public: \
virtual bool addToScene(EntityItemPointer self, std::shared_ptr<render::Scene> scene, render::PendingChanges& pendingChanges) override { return _renderHelper.addToScene(self, scene, pendingChanges); } \
virtual void removeFromScene(EntityItemPointer self, std::shared_ptr<render::Scene> scene, render::PendingChanges& pendingChanges) override { _renderHelper.removeFromScene(self, scene, pendingChanges); } \
private: \
SimpleRenderableEntityItem _renderHelper;
#endif // hifi_RenderableEntityItem_h