1 /*
2  * Shotgun Debugger
3  * Copyright 2005 Game Creation Society
4  *
5  * Programmed by Matt Sarnoff
6  * http://www.contrib.andrew.cmu.edu/~msarnoff
7  * http://www.gamecreation.org
8  *
9  * camera.h - camera class
10  *
11  * This program is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU General Public License
13  * as published by the Free Software Foundation; either version 2
14  * of the License, or (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; if not, write to the Free Software
23  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
24  */
25 
26 #ifndef _CAMERA_H_
27 #define _CAMERA_H_
28 
29 #include "sdb.h"
30 
31 #define CAMERA_DEFAULT_HEIGHT 50.0
32 
33 class Camera
34 {
35   public:
Camera()36     Camera() { set(0.0, 0.0, CAMERA_DEFAULT_HEIGHT, 0.0); }
setPos(float x,float y)37     void setPos(float x, float y) { pos.c[X] = x; pos.c[Y] = y; }
setHeight(float h)38     void setHeight(float h) { height = h; }
setRotation(float theta)39     void setRotation(float theta) { rot = theta; }
set(float x,float y,float h,float th)40     void set(float x, float y, float h, float th) { setPos(x, y); setHeight(h); setRotation(th); }
change(float dx,float dy,float dh,float dth)41     void change(float dx, float dy, float dh, float dth) { pos.c[X]+=dx; pos.c[Y]+=dy; height+=dh; rot+=dth; }
apply()42     void apply() { glRotatef(rot, 0.0, 0.0, 1.0); gluLookAt(pos.c[X],pos.c[Y]-0,height, pos.c[X],pos.c[Y],0.0, 0.0,1.0,0.0); }
applyPerspective()43     void applyPerspective() { glRotatef(rot, 0.0, 0.0, 1.0); gluLookAt(pos.c[X],pos.c[Y],0.0, pos.c[X],10000.0,0.0, 0.0,0.0,1.0); }
drawCursor()44     void drawCursor()
45     {
46       glColor4f(0.0, 1.0, 0.0, 0.75);
47       glBegin(GL_LINES);
48         glVertex2f(pos.c[X]-5.0, pos.c[Y]);
49         glVertex2f(pos.c[X]+5.0, pos.c[Y]);
50 
51         glVertex2f(pos.c[X], pos.c[Y]-5.0);
52         glVertex2f(pos.c[X], pos.c[Y]+5.0);
53       glEnd();
54     }
55 
Pos()56     Vector2D Pos() { return pos; }
Height()57     float Height() { return height; }
58   private:
59     Vector2D pos;
60     float height;
61     float rot;
62 };
63 
64 #endif
65