13754d53c3
- Now they are in ndkHelper:: name space - Changed module name to ndk_helper - Changed some static members to class var or stand alone function - Added syncronization for JNIHelper.cpp - For a documentation, I will work with doc writer for future improvement Change-Id: I0055061a4f53b1904cde2e0339550ee277b35fc5 Addressed most of feedbacks, - Switched coding standard to Chrome style - Update JNI helper, and documented - Fixed other issues that is pointed out Change-Id: Icc729a55ed8dd613759f34a3fc35cb4949d2d205
113 lines
2.6 KiB
C++
113 lines
2.6 KiB
C++
/*
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* Copyright 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <vector>
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#include <string>
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#include <GLES2/gl2.h>
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#include "JNIHelper.h"
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#include "vecmath.h"
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#include "interpolator.h"
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namespace ndk_helper
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{
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/******************************************************************
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* Camera control helper class with a tap gesture
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* This class is mainly used for 3D space camera control in samples.
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*
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*/
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class TapCamera
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{
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private:
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//Trackball
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Vec2 vec_ball_center_;
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float ball_radius_;
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Quaternion quat_ball_now_;
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Quaternion quat_ball_down_;
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Vec2 vec_ball_now_;
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Vec2 vec_ball_down_;
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Quaternion quat_ball_rot_;
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bool dragging_;
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bool pinching_;
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//Pinch related info
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Vec2 vec_pinch_start_;
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Vec2 vec_pinch_start_center_;
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float pinch_start_distance_SQ_;
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//Camera shift
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Vec3 vec_offset_;
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Vec3 vec_offset_now_;
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//Camera Rotation
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float camera_rotation_;
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float camera_rotation_start_;
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float camera_rotation_now_;
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//Momentum support
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bool momentum_;
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Vec2 vec_drag_delta_;
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Vec2 vec_last_input_;
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Vec3 vec_offset_last_;
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Vec3 vec_offset_delta_;
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float momemtum_steps_;
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Vec2 vec_flip_;
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float flip_z_;
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Mat4 mat_rotation_;
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Mat4 mat_transform_;
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Vec3 vec_pinch_transform_factor_;
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Vec3 PointOnSphere( Vec2& point );
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void BallUpdate();
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void InitParameters();
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public:
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TapCamera();
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virtual ~TapCamera();
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void BeginDrag( const Vec2& vec );
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void EndDrag();
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void Drag( const Vec2& vec );
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void Update();
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Mat4& GetRotationMatrix();
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Mat4& GetTransformMatrix();
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void BeginPinch( const Vec2& v1, const Vec2& v2 );
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void EndPinch();
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void Pinch( const Vec2& v1, const Vec2& v2 );
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void SetFlip( const float x, const float y, const float z )
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{
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vec_flip_ = Vec2( x, y );
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flip_z_ = z;
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}
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void SetPinchTransformFactor( const float x, const float y, const float z )
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{
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vec_pinch_transform_factor_ = Vec3( x, y, z );
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}
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void Reset( const bool bAnimate );
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};
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} //namespace ndkHelper
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