urho3d/Source/Samples/06_SkeletalAnimation/Mover.cpp

//
// Copyright (c) 2008-2013 the Urho3D project.
//
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// 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.
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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#include "AnimatedModel.h"
#include "AnimationState.h"
#include "Mover.h"
#include "Scene.h"
#include "SceneEvents.h"

#include "DebugNew.h"

Mover::Mover(Context* context) :
    Component(context),
    moveSpeed_(0.0f),
    rotationSpeed_(0.0f)
{
}

void Mover::SetParameters(float moveSpeed, float rotationSpeed, const BoundingBox& bounds)
{
    moveSpeed_ = moveSpeed;
    rotationSpeed_ = rotationSpeed;
    bounds_ = bounds;
}

void Mover::OnNodeSet(Node* node)
{
    // If the node pointer is non-null, this component has been created into a scene node. Subscribe to the variable timestep
    // scene update event now
    if (node)
    {
        Scene* scene = node->GetScene();
        if (scene)
            SubscribeToEvent(scene, E_SCENEUPDATE, HANDLER(Mover, HandleSceneUpdate));
    }
}

void Mover::HandleSceneUpdate(StringHash eventType, VariantMap& eventData)
{
    // Get the timestep from the update event
    using namespace SceneUpdate;
    float timeStep = eventData[P_TIMESTEP].GetFloat();
    
    node_->TranslateRelative(Vector3::FORWARD * moveSpeed_ * timeStep);
    
    // If in risk of going outside the plane, rotate the model right
    Vector3 pos = node_->GetPosition();
    if (pos.x_ < bounds_.min_.x_ || pos.x_ > bounds_.max_.x_ || pos.z_ < bounds_.min_.z_ || pos.z_ > bounds_.max_.z_)
        node_->Yaw(rotationSpeed_ * timeStep);
    
    // Get the model's first (only) animation state and advance its time. Note the convenience accessor to other components
    // in the same scene node
    AnimatedModel* model = GetComponent<AnimatedModel>();
    if (model->GetNumAnimationStates())
    {
        AnimationState* state = model->GetAnimationStates()[0];
        state->AddTime(timeStep);
    }
}