scummvm/engines/myst3/scene.cpp

66 lines
1.8 KiB
C++

/* Residual - A 3D game interpreter
*
* Residual is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the AUTHORS
* file distributed with this source distribution.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*
* $URL$
* $Id$
*
*/
#include "engines/myst3/scene.h"
namespace Myst3 {
void Scene::init(int width, int height) {
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45.0, (GLfloat)width/(GLfloat)height, 0.1, 100.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glDisable(GL_LIGHTING);
glEnable(GL_TEXTURE_2D);
glEnable(GL_DEPTH_TEST);
_cameraPitch = 0.0f;
_cameraYaw = 0.0f;
}
void Scene::clear() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1.0f, 1.0f, 1.0f);
}
void Scene::setupCamera() {
// Rotate the model to simulate the rotation of the camera
glLoadIdentity();
glRotatef(_cameraPitch, 1.0f, 0.0f, 0.0f);
glRotatef(_cameraYaw, 0.0f, 1.0f, 0.0f);
}
void Scene::updateCamera(Common::Point &mouse) {
_cameraYaw += mouse.x / 3.0f;
_cameraPitch += mouse.y / 3.0f;
_cameraPitch = CLIP(_cameraPitch, -90.0f, 90.0f);
}
} // end of namespace Myst3