mirror of
https://github.com/FWGS/hlsdk-xash3d
synced 2024-11-25 11:19:39 +01:00
671 lines
16 KiB
C++
671 lines
16 KiB
C++
//========= Copyright (c) 1996-2002, Valve LLC, All rights reserved. ============
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================
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#include "hud.h"
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#include "cl_util.h"
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#include "camera.h"
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#include "kbutton.h"
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#include "cvardef.h"
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#include "usercmd.h"
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#include "const.h"
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#include "camera.h"
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#include "in_defs.h"
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#if _WIN32
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#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
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#define WIN32_EXTRA_LEAN
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#define HSPRITE WINDOWS_HSPRITE
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#include <windows.h>
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#undef HSPRITE
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#else
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typedef struct point_s
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{
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int x;
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int y;
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} POINT;
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#define GetCursorPos(x)
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#define SetCursorPos(x,y)
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#endif
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float CL_KeyState( kbutton_t *key );
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extern "C"
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{
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void DLLEXPORT CAM_Think( void );
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int DLLEXPORT CL_IsThirdPerson( void );
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void DLLEXPORT CL_CameraOffset( float *ofs );
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}
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extern cl_enginefunc_t gEngfuncs;
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//-------------------------------------------------- Constants
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#define CAM_DIST_DELTA 1.0f
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#define CAM_ANGLE_DELTA 2.5f
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#define CAM_ANGLE_SPEED 2.5f
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#define CAM_MIN_DIST 30.0f
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#define CAM_ANGLE_MOVE 0.5f
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#define MAX_ANGLE_DIFF 10.0f
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#define PITCH_MAX 90.0f
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#define PITCH_MIN 0.0f
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#define YAW_MAX 135.0f
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#define YAW_MIN -135.0f
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enum ECAM_Command
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{
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CAM_COMMAND_NONE = 0,
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CAM_COMMAND_TOTHIRDPERSON = 1,
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CAM_COMMAND_TOFIRSTPERSON = 2
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};
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//-------------------------------------------------- Global Variables
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cvar_t *cam_command;
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cvar_t *cam_snapto;
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cvar_t *cam_idealyaw;
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cvar_t *cam_idealpitch;
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cvar_t *cam_idealdist;
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cvar_t *cam_contain;
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cvar_t *c_maxpitch;
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cvar_t *c_minpitch;
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cvar_t *c_maxyaw;
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cvar_t *c_minyaw;
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cvar_t *c_maxdistance;
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cvar_t *c_mindistance;
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// pitch, yaw, dist
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vec3_t cam_ofs;
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// In third person
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int cam_thirdperson;
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int cam_mousemove; //true if we are moving the cam with the mouse, False if not
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int iMouseInUse = 0;
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int cam_distancemove;
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extern int mouse_x, mouse_y; //used to determine what the current x and y values are
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int cam_old_mouse_x, cam_old_mouse_y; //holds the last ticks mouse movement
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POINT cam_mouse;
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//-------------------------------------------------- Local Variables
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static kbutton_t cam_pitchup, cam_pitchdown, cam_yawleft, cam_yawright;
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static kbutton_t cam_in, cam_out, cam_move;
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//-------------------------------------------------- Prototypes
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void CAM_ToThirdPerson(void);
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void CAM_ToFirstPerson(void);
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void CAM_StartDistance(void);
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void CAM_EndDistance(void);
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//-------------------------------------------------- Local Functions
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float MoveToward( float cur, float goal, float maxspeed )
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{
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if( cur != goal )
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{
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if( fabs( cur - goal ) > 180.0f )
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{
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if( cur < goal )
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cur += 360.0f;
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else
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cur -= 360.0f;
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}
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if( cur < goal )
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{
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if( cur < goal - 1.0f )
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cur += ( goal - cur ) * 0.25f;
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else
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cur = goal;
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}
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else
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{
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if( cur > goal + 1.0f )
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cur -= ( cur - goal ) * 0.25f;
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else
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cur = goal;
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}
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}
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// bring cur back into range
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if( cur < 0.0f )
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cur += 360.0f;
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else if( cur >= 360.0f )
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cur -= 360.0f;
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return cur;
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}
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//-------------------------------------------------- Gobal Functions
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typedef struct
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{
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vec3_t boxmins, boxmaxs;// enclose the test object along entire move
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float *mins, *maxs; // size of the moving object
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vec3_t mins2, maxs2; // size when clipping against mosnters
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float *start, *end;
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trace_t trace;
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int type;
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edict_t *passedict;
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qboolean monsterclip;
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} moveclip_t;
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extern trace_t SV_ClipMoveToEntity( edict_t *ent, vec3_t start, vec3_t mins, vec3_t maxs, vec3_t end );
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void DLLEXPORT CAM_Think( void )
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{
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vec3_t origin;
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vec3_t ext, pnt, camForward, camRight, camUp;
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moveclip_t clip;
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float dist;
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vec3_t camAngles;
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float flSensitivity;
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#if LATER
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int i;
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#endif
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vec3_t viewangles;
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if( gEngfuncs.GetMaxClients() > 1 && CL_IsThirdPerson() )
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CAM_ToFirstPerson();
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switch( (int)cam_command->value )
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{
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case CAM_COMMAND_TOTHIRDPERSON:
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CAM_ToThirdPerson();
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break;
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case CAM_COMMAND_TOFIRSTPERSON:
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CAM_ToFirstPerson();
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break;
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case CAM_COMMAND_NONE:
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default:
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break;
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}
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if( !cam_thirdperson )
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return;
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#if LATER
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if( cam_contain->value )
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{
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gEngfuncs.GetClientOrigin( origin );
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ext[0] = ext[1] = ext[2] = 0.0f;
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}
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#endif
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camAngles[PITCH] = cam_idealpitch->value;
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camAngles[YAW] = cam_idealyaw->value;
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dist = cam_idealdist->value;
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//
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//movement of the camera with the mouse
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//
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if( cam_mousemove )
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{
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//get windows cursor position
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GetCursorPos( &cam_mouse );
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//check for X delta values and adjust accordingly
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//eventually adjust YAW based on amount of movement
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//don't do any movement of the cam using YAW/PITCH if we are zooming in/out the camera
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if( !cam_distancemove )
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{
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//keep the camera within certain limits around the player (ie avoid certain bad viewing angles)
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if( cam_mouse.x>gEngfuncs.GetWindowCenterX() )
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{
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//if( ( camAngles[YAW] >= 225.0f ) || ( camAngles[YAW] < 135.0f ) )
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if( camAngles[YAW] < c_maxyaw->value )
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{
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camAngles[YAW] += CAM_ANGLE_MOVE * ( ( cam_mouse.x - gEngfuncs.GetWindowCenterX() ) / 2 );
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}
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if( camAngles[YAW] > c_maxyaw->value )
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{
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camAngles[YAW] = c_maxyaw->value;
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}
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}
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else if( cam_mouse.x<gEngfuncs.GetWindowCenterX() )
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{
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//if( ( camAngles[YAW] <= 135.0f ) || ( camAngles[YAW] > 225.0f ) )
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if( camAngles[YAW] > c_minyaw->value )
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{
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camAngles[YAW] -= CAM_ANGLE_MOVE * ( ( gEngfuncs.GetWindowCenterX() - cam_mouse.x ) / 2 );
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}
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if( camAngles[YAW] < c_minyaw->value )
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{
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camAngles[YAW] = c_minyaw->value;
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}
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}
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//check for y delta values and adjust accordingly
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//eventually adjust PITCH based on amount of movement
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//also make sure camera is within bounds
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if( cam_mouse.y>gEngfuncs.GetWindowCenterY() )
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{
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if( camAngles[PITCH] < c_maxpitch->value )
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{
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camAngles[PITCH] += CAM_ANGLE_MOVE * ( ( cam_mouse.y - gEngfuncs.GetWindowCenterY() ) / 2 );
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}
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if( camAngles[PITCH] > c_maxpitch->value )
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{
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camAngles[PITCH] = c_maxpitch->value;
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}
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}
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else if( cam_mouse.y<gEngfuncs.GetWindowCenterY() )
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{
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if( camAngles[PITCH] > c_minpitch->value )
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{
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camAngles[PITCH] -= CAM_ANGLE_MOVE * ( ( gEngfuncs.GetWindowCenterY() - cam_mouse.y ) / 2 );
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}
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if( camAngles[PITCH] < c_minpitch->value )
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{
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camAngles[PITCH] = c_minpitch->value;
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}
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}
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//set old mouse coordinates to current mouse coordinates
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//since we are done with the mouse
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if( ( flSensitivity = gHUD.GetSensitivity() ) != 0 )
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{
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cam_old_mouse_x = cam_mouse.x * flSensitivity;
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cam_old_mouse_y = cam_mouse.y * flSensitivity;
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}
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else
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{
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cam_old_mouse_x = cam_mouse.x;
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cam_old_mouse_y = cam_mouse.y;
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}
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SetCursorPos( gEngfuncs.GetWindowCenterX(), gEngfuncs.GetWindowCenterY() );
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}
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}
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//Nathan code here
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if( CL_KeyState( &cam_pitchup ) )
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camAngles[PITCH] += CAM_ANGLE_DELTA;
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else if( CL_KeyState( &cam_pitchdown ) )
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camAngles[PITCH] -= CAM_ANGLE_DELTA;
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if( CL_KeyState( &cam_yawleft ) )
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camAngles[YAW] -= CAM_ANGLE_DELTA;
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else if( CL_KeyState( &cam_yawright ) )
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camAngles[YAW] += CAM_ANGLE_DELTA;
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if( CL_KeyState( &cam_in ) )
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{
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dist -= CAM_DIST_DELTA;
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if( dist < CAM_MIN_DIST )
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{
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// If we go back into first person, reset the angle
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camAngles[PITCH] = 0;
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camAngles[YAW] = 0;
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dist = CAM_MIN_DIST;
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}
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}
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else if( CL_KeyState( &cam_out ) )
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dist += CAM_DIST_DELTA;
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if( cam_distancemove )
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{
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if( cam_mouse.y > gEngfuncs.GetWindowCenterY() )
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{
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if( dist < c_maxdistance->value )
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{
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dist += CAM_DIST_DELTA * ( ( cam_mouse.y - gEngfuncs.GetWindowCenterY() ) / 2);
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}
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if( dist > c_maxdistance->value )
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{
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dist = c_maxdistance->value;
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}
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}
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else if( cam_mouse.y < gEngfuncs.GetWindowCenterY() )
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{
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if( dist > c_mindistance->value )
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{
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dist -= CAM_DIST_DELTA * ( ( gEngfuncs.GetWindowCenterY() - cam_mouse.y ) / 2 );
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}
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if ( dist < c_mindistance->value )
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{
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dist = c_mindistance->value;
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}
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}
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//set old mouse coordinates to current mouse coordinates
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//since we are done with the mouse
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cam_old_mouse_x = cam_mouse.x * gHUD.GetSensitivity();
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cam_old_mouse_y = cam_mouse.y * gHUD.GetSensitivity();
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SetCursorPos( gEngfuncs.GetWindowCenterX(), gEngfuncs.GetWindowCenterY() );
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}
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#if LATER
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if( cam_contain->value )
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{
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// check new ideal
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VectorCopy( origin, pnt );
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AngleVectors( camAngles, camForward, camRight, camUp );
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for( i = 0; i < 3; i++ )
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pnt[i] += -dist * camForward[i];
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// check line from r_refdef.vieworg to pnt
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memset( &clip, 0, sizeof(moveclip_t) );
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clip.trace = SV_ClipMoveToEntity( sv.edicts, r_refdef.vieworg, ext, ext, pnt );
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if( clip.trace.fraction == 1.0 )
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{
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// update ideal
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cam_idealpitch->value = camAngles[PITCH];
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cam_idealyaw->value = camAngles[YAW];
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cam_idealdist->value = dist;
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}
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}
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else
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#endif
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{
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// update ideal
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cam_idealpitch->value = camAngles[PITCH];
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cam_idealyaw->value = camAngles[YAW];
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cam_idealdist->value = dist;
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}
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// Move towards ideal
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VectorCopy( cam_ofs, camAngles );
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gEngfuncs.GetViewAngles( (float *)viewangles );
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if( cam_snapto->value )
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{
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camAngles[YAW] = cam_idealyaw->value + viewangles[YAW];
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camAngles[PITCH] = cam_idealpitch->value + viewangles[PITCH];
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camAngles[2] = cam_idealdist->value;
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}
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else
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{
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if( camAngles[YAW] - viewangles[YAW] != cam_idealyaw->value )
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camAngles[YAW] = MoveToward( camAngles[YAW], cam_idealyaw->value + viewangles[YAW], CAM_ANGLE_SPEED );
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if( camAngles[PITCH] - viewangles[PITCH] != cam_idealpitch->value )
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camAngles[PITCH] = MoveToward( camAngles[PITCH], cam_idealpitch->value + viewangles[PITCH], CAM_ANGLE_SPEED );
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if( fabs( camAngles[2] - cam_idealdist->value ) < 2.0f )
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camAngles[2] = cam_idealdist->value;
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else
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camAngles[2] += ( cam_idealdist->value - camAngles[2] ) * 0.25f;
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}
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#if LATER
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if( cam_contain->value )
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{
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// Test new position
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dist = camAngles[ROLL];
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camAngles[ROLL] = 0;
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VectorCopy( origin, pnt );
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AngleVectors( camAngles, camForward, camRight, camUp );
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for( i = 0; i < 3; i++ )
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pnt[i] += -dist * camForward[i];
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// check line from r_refdef.vieworg to pnt
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memset( &clip, 0, sizeof(moveclip_t) );
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ext[0] = ext[1] = ext[2] = 0.0f;
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clip.trace = SV_ClipMoveToEntity( sv.edicts, r_refdef.vieworg, ext, ext, pnt );
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if( clip.trace.fraction != 1.0f )
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return;
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}
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#endif
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cam_ofs[0] = camAngles[0];
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cam_ofs[1] = camAngles[1];
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cam_ofs[2] = dist;
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}
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extern void KeyDown( kbutton_t *b ); // HACK
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extern void KeyUp( kbutton_t *b ); // HACK
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void CAM_PitchUpDown( void )
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{
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KeyDown( &cam_pitchup );
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}
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void CAM_PitchUpUp( void )
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{
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KeyUp( &cam_pitchup );
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}
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void CAM_PitchDownDown( void )
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{
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KeyDown( &cam_pitchdown );
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}
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void CAM_PitchDownUp( void )
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{
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KeyUp( &cam_pitchdown );
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}
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void CAM_YawLeftDown( void )
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{
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KeyDown( &cam_yawleft );
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}
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void CAM_YawLeftUp( void )
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{
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KeyUp( &cam_yawleft );
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}
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void CAM_YawRightDown( void )
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{
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KeyDown( &cam_yawright );
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}
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void CAM_YawRightUp( void )
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{
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KeyUp( &cam_yawright );
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}
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void CAM_InDown( void )
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{
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KeyDown( &cam_in );
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}
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void CAM_InUp( void )
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{
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KeyUp( &cam_in );
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}
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void CAM_OutDown( void )
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{
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KeyDown( &cam_out );
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}
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void CAM_OutUp( void )
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{
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KeyUp( &cam_out );
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}
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void CAM_ToThirdPerson( void )
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{
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vec3_t viewangles;
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#if !_DEBUG
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if( gEngfuncs.GetMaxClients() > 1 )
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{
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// no thirdperson in multiplayer.
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return;
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}
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#endif
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gEngfuncs.GetViewAngles( (float *)viewangles );
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if( !cam_thirdperson )
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{
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cam_thirdperson = 1;
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cam_ofs[YAW] = viewangles[YAW];
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cam_ofs[PITCH] = viewangles[PITCH];
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cam_ofs[2] = CAM_MIN_DIST;
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}
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gEngfuncs.Cvar_SetValue( "cam_command", 0 );
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}
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void CAM_ToFirstPerson( void )
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{
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cam_thirdperson = 0;
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gEngfuncs.Cvar_SetValue( "cam_command", 0 );
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}
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void CAM_ToggleSnapto( void )
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{
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cam_snapto->value = !cam_snapto->value;
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}
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void CAM_Init( void )
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{
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gEngfuncs.pfnAddCommand( "+campitchup", CAM_PitchUpDown );
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gEngfuncs.pfnAddCommand( "-campitchup", CAM_PitchUpUp );
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gEngfuncs.pfnAddCommand( "+campitchdown", CAM_PitchDownDown );
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gEngfuncs.pfnAddCommand( "-campitchdown", CAM_PitchDownUp );
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gEngfuncs.pfnAddCommand( "+camyawleft", CAM_YawLeftDown );
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gEngfuncs.pfnAddCommand( "-camyawleft", CAM_YawLeftUp );
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gEngfuncs.pfnAddCommand( "+camyawright", CAM_YawRightDown );
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gEngfuncs.pfnAddCommand( "-camyawright", CAM_YawRightUp );
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gEngfuncs.pfnAddCommand( "+camin", CAM_InDown );
|
|
gEngfuncs.pfnAddCommand( "-camin", CAM_InUp );
|
|
gEngfuncs.pfnAddCommand( "+camout", CAM_OutDown );
|
|
gEngfuncs.pfnAddCommand( "-camout", CAM_OutUp );
|
|
gEngfuncs.pfnAddCommand( "thirdperson", CAM_ToThirdPerson );
|
|
gEngfuncs.pfnAddCommand( "firstperson", CAM_ToFirstPerson );
|
|
gEngfuncs.pfnAddCommand( "+cammousemove",CAM_StartMouseMove);
|
|
gEngfuncs.pfnAddCommand( "-cammousemove",CAM_EndMouseMove);
|
|
gEngfuncs.pfnAddCommand( "+camdistance", CAM_StartDistance );
|
|
gEngfuncs.pfnAddCommand( "-camdistance", CAM_EndDistance );
|
|
gEngfuncs.pfnAddCommand( "snapto", CAM_ToggleSnapto );
|
|
|
|
cam_command = gEngfuncs.pfnRegisterVariable( "cam_command", "0", 0 ); // tells camera to go to thirdperson
|
|
cam_snapto = gEngfuncs.pfnRegisterVariable( "cam_snapto", "0", 0 ); // snap to thirdperson view
|
|
cam_idealyaw = gEngfuncs.pfnRegisterVariable( "cam_idealyaw", "0", 0 ); // thirdperson yaw
|
|
cam_idealpitch = gEngfuncs.pfnRegisterVariable( "cam_idealpitch", "0", 0 ); // thirperson pitch
|
|
cam_idealdist = gEngfuncs.pfnRegisterVariable( "cam_idealdist", "128", 0 ); // thirdperson distance
|
|
cam_contain = gEngfuncs.pfnRegisterVariable( "cam_contain", "0", 0 ); // contain camera to world
|
|
|
|
c_maxpitch = gEngfuncs.pfnRegisterVariable( "c_maxpitch", "90.0", 0 );
|
|
c_minpitch = gEngfuncs.pfnRegisterVariable( "c_minpitch", "0.0", 0 );
|
|
c_maxyaw = gEngfuncs.pfnRegisterVariable( "c_maxyaw", "135.0", 0 );
|
|
c_minyaw = gEngfuncs.pfnRegisterVariable( "c_minyaw", "-135.0", 0 );
|
|
c_maxdistance = gEngfuncs.pfnRegisterVariable( "c_maxdistance", "200.0", 0 );
|
|
c_mindistance = gEngfuncs.pfnRegisterVariable( "c_mindistance", "30.0", 0 );
|
|
}
|
|
|
|
void CAM_ClearStates( void )
|
|
{
|
|
vec3_t viewangles;
|
|
|
|
gEngfuncs.GetViewAngles( (float *)viewangles );
|
|
|
|
cam_pitchup.state = 0;
|
|
cam_pitchdown.state = 0;
|
|
cam_yawleft.state = 0;
|
|
cam_yawright.state = 0;
|
|
cam_in.state = 0;
|
|
cam_out.state = 0;
|
|
|
|
cam_thirdperson = 0;
|
|
cam_command->value = 0;
|
|
cam_mousemove=0;
|
|
|
|
cam_snapto->value = 0;
|
|
cam_distancemove = 0;
|
|
|
|
cam_ofs[0] = 0.0;
|
|
cam_ofs[1] = 0.0;
|
|
cam_ofs[2] = CAM_MIN_DIST;
|
|
|
|
cam_idealpitch->value = viewangles[PITCH];
|
|
cam_idealyaw->value = viewangles[YAW];
|
|
cam_idealdist->value = CAM_MIN_DIST;
|
|
}
|
|
|
|
void CAM_StartMouseMove( void )
|
|
{
|
|
float flSensitivity;
|
|
|
|
//only move the cam with mouse if we are in third person.
|
|
if( cam_thirdperson )
|
|
{
|
|
//set appropriate flags and initialize the old mouse position
|
|
//variables for mouse camera movement
|
|
if( !cam_mousemove )
|
|
{
|
|
cam_mousemove = 1;
|
|
iMouseInUse = 1;
|
|
GetCursorPos( &cam_mouse );
|
|
|
|
if( ( flSensitivity = gHUD.GetSensitivity() ) != 0 )
|
|
{
|
|
cam_old_mouse_x = cam_mouse.x * flSensitivity;
|
|
cam_old_mouse_y = cam_mouse.y * flSensitivity;
|
|
}
|
|
else
|
|
{
|
|
cam_old_mouse_x = cam_mouse.x;
|
|
cam_old_mouse_y = cam_mouse.y;
|
|
}
|
|
}
|
|
}
|
|
//we are not in 3rd person view..therefore do not allow camera movement
|
|
else
|
|
{
|
|
cam_mousemove = 0;
|
|
iMouseInUse = 0;
|
|
}
|
|
}
|
|
|
|
//the key has been released for camera movement
|
|
//tell the engine that mouse camera movement is off
|
|
void CAM_EndMouseMove( void )
|
|
{
|
|
cam_mousemove = 0;
|
|
iMouseInUse = 0;
|
|
}
|
|
|
|
//----------------------------------------------------------
|
|
//routines to start the process of moving the cam in or out
|
|
//using the mouse
|
|
//----------------------------------------------------------
|
|
void CAM_StartDistance( void )
|
|
{
|
|
//only move the cam with mouse if we are in third person.
|
|
if( cam_thirdperson )
|
|
{
|
|
//set appropriate flags and initialize the old mouse position
|
|
//variables for mouse camera movement
|
|
if( !cam_distancemove )
|
|
{
|
|
cam_distancemove = 1;
|
|
cam_mousemove = 1;
|
|
iMouseInUse = 1;
|
|
GetCursorPos( &cam_mouse );
|
|
cam_old_mouse_x = cam_mouse.x * gHUD.GetSensitivity();
|
|
cam_old_mouse_y = cam_mouse.y * gHUD.GetSensitivity();
|
|
}
|
|
}
|
|
//we are not in 3rd person view..therefore do not allow camera movement
|
|
else
|
|
{
|
|
cam_distancemove = 0;
|
|
cam_mousemove = 0;
|
|
iMouseInUse = 0;
|
|
}
|
|
}
|
|
|
|
//the key has been released for camera movement
|
|
//tell the engine that mouse camera movement is off
|
|
void CAM_EndDistance( void )
|
|
{
|
|
cam_distancemove = 0;
|
|
cam_mousemove = 0;
|
|
iMouseInUse = 0;
|
|
}
|
|
|
|
int DLLEXPORT CL_IsThirdPerson( void )
|
|
{
|
|
return ( cam_thirdperson ? 1 : 0 ) || ( g_iUser1 && ( g_iUser2 == gEngfuncs.GetLocalPlayer()->index ) );
|
|
}
|
|
|
|
void DLLEXPORT CL_CameraOffset( float *ofs )
|
|
{
|
|
VectorCopy( cam_ofs, ofs );
|
|
}
|