e0ea6f4a43
git-svn-id: https://reactphysics3d.googlecode.com/svn/trunk@16 92aac97c-a6ce-11dd-a772-7fcde58d38e6
116 lines
4.0 KiB
C++
116 lines
4.0 KiB
C++
/****************************************************************************
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* Copyright (C) 2009 Daniel Chappuis *
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****************************************************************************
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* This file is part of ReactPhysics3D. *
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* *
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* ReactPhysics3D is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation, either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* ReactPhysics3D is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with ReactPhysics3D. If not, see <http://www.gnu.org/licenses/>. *
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***************************************************************************/
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// Libraries
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#include "OutSideCamera.h"
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#include <cmath>
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// Constants
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const double PI = 3.141592;
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// Constructor
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OutSideCamera::OutSideCamera() {
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// Initialize the attributes
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heightFromFloor = 20.0;
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horizontalAngleRotation = 0;
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verticalAngleRotation = 45;
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distanceFromOrigin = 10.0;
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lookAtPoint.setAllValues(0.0, 0.0, 0.0);
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// Update the position of the camera
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updatePosition();
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// Update the view vector of the camera
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updateViewVector();
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}
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// Destructor
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OutSideCamera::~OutSideCamera() {
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}
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// Compute the new position of the camera
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void OutSideCamera::updatePosition() {
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// Compute the floor distance from origin
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double floorDistance = distanceFromOrigin * cos(PI/180.0 * verticalAngleRotation);
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// Update the position of the camera
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position.setAllValues(floorDistance*cos(PI/180.0 * horizontalAngleRotation), distanceFromOrigin*sin(PI/180*verticalAngleRotation),
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floorDistance*sin(PI/180.0 * horizontalAngleRotation));
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}
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// Set the camera rotation angle and update the position of the camera
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void OutSideCamera::modifyHorizontalAngleRotation(int screenDistance, float fps) {
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// Update the horizontal rotation angle of the camera
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horizontalAngleRotation = (horizontalAngleRotation + int(screenDistance * 60.0 / fps)) % 360;
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// Update the position and the view vector of the camera
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updatePosition();
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updateViewVector();
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}
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// Set the vertical camera rotation angle
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void OutSideCamera::modifyVerticalAngleRotation(int screenDistance, float fps) {
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// Update the vertical rotation angle of the camera
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verticalAngleRotation = verticalAngleRotation + (screenDistance * 60.0 / fps);
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// Vertical angle limits
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if (verticalAngleRotation > 89) {
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verticalAngleRotation = 89;
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}
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if (verticalAngleRotation < 1) {
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verticalAngleRotation = 1;
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}
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// Update the position and the view vector of the camera
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updatePosition();
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updateViewVector();
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}
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// Increase the distance from origine of the camera (used for the zoom)
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void OutSideCamera::increaseDistance(float fps) {
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// Increase the distance from origin
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distanceFromOrigin = distanceFromOrigin + (speed * 60 / fps);
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// Update the position and the view vector of the camera
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updatePosition();
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updateViewVector();
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}
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// Decrease the distance from origine of the camera (used for the zoom)
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void OutSideCamera::decreaseDistance(float fps) {
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// Decrease the distance from origin
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distanceFromOrigin = distanceFromOrigin - (speed * 60 / fps);
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// Limit condition
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if(distanceFromOrigin < 1) {
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distanceFromOrigin=1;
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}
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// Update the position and the view vector of the camera
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updatePosition();
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updateViewVector();
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}
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