mirror of
https://github.com/yquake2/yquake2remaster.git
synced 2025-01-10 03:40:59 +00:00
506 lines
12 KiB
C
506 lines
12 KiB
C
/*
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* Copyright (C) 1997-2001 Id Software, Inc.
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*
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* This program 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 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* See the 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 this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* =======================================================================
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*
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* This file implements the camera, e.g the player's view
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*
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* =======================================================================
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*/
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#include "header/client.h"
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void SCR_DrawCrosshair (void);
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/* development tools for weapons */
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int gun_frame;
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struct model_s *gun_model;
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cvar_t *crosshair;
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cvar_t *crosshair_scale;
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cvar_t *cl_testparticles;
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cvar_t *cl_testentities;
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cvar_t *cl_testlights;
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cvar_t *cl_testblend;
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cvar_t *cl_stats;
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int r_numdlights;
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dlight_t r_dlights[MAX_DLIGHTS];
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int r_numentities;
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entity_t r_entities[MAX_ENTITIES];
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int r_numparticles;
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particle_t r_particles[MAX_PARTICLES];
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lightstyle_t r_lightstyles[MAX_LIGHTSTYLES];
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char cl_weaponmodels[MAX_CLIENTWEAPONMODELS][MAX_QPATH];
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int num_cl_weaponmodels;
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/*
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* Specifies the model that will be used as the world
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*/
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void V_ClearScene (void) {
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r_numdlights = 0;
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r_numentities = 0;
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r_numparticles = 0;
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}
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void V_AddEntity (entity_t *ent) {
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if (r_numentities >= MAX_ENTITIES)
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return;
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r_entities[r_numentities++] = *ent;
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}
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void V_AddParticle (vec3_t org, unsigned int color, float alpha) {
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particle_t *p;
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if (r_numparticles >= MAX_PARTICLES)
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return;
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p = &r_particles[r_numparticles++];
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VectorCopy (org, p->origin);
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p->color = color;
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p->alpha = alpha;
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}
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void V_AddLight (vec3_t org, float intensity, float r, float g, float b) {
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dlight_t *dl;
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if (r_numdlights >= MAX_DLIGHTS)
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return;
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dl = &r_dlights[r_numdlights++];
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VectorCopy (org, dl->origin);
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dl->intensity = intensity;
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dl->color[0] = r;
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dl->color[1] = g;
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dl->color[2] = b;
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}
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void V_AddLightStyle (int style, float r, float g, float b) {
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lightstyle_t *ls;
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if (style < 0 || style > MAX_LIGHTSTYLES)
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Com_Error (ERR_DROP, "Bad light style %i", style);
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ls = &r_lightstyles[style];
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ls->white = r+g+b;
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ls->rgb[0] = r;
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ls->rgb[1] = g;
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ls->rgb[2] = b;
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}
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/*
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*If cl_testparticles is set, create 4096 particles in the view
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*/
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void V_TestParticles (void) {
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particle_t *p;
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int i, j;
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float d, r, u;
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r_numparticles = MAX_PARTICLES;
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for (i=0 ; i<r_numparticles ; i++) {
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d = i*0.25f;
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r = 4*((i&7)-3.5f);
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u = 4*(((i>>3)&7)-3.5f);
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p = &r_particles[i];
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for (j=0 ; j<3 ; j++)
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p->origin[j] = cl.refdef.vieworg[j] + cl.v_forward[j]*d +
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cl.v_right[j]*r + cl.v_up[j]*u;
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p->color = 8;
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p->alpha = cl_testparticles->value;
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}
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}
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/*
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* If cl_testentities is set, create 32 player models
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*/
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void V_TestEntities (void) {
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int i, j;
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float f, r;
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entity_t *ent;
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r_numentities = 32;
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memset (r_entities, 0, sizeof(r_entities));
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for (i=0 ; i<r_numentities ; i++) {
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ent = &r_entities[i];
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r = 64 * ( (i%4) - 1.5 );
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f = 64 * (i/4) + 128;
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for (j=0 ; j<3 ; j++)
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ent->origin[j] = cl.refdef.vieworg[j] + cl.v_forward[j]*f +
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cl.v_right[j]*r;
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ent->model = cl.baseclientinfo.model;
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ent->skin = cl.baseclientinfo.skin;
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}
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}
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/*
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* If cl_testlights is set, create 32 lights models
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*/
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void V_TestLights (void) {
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int i, j;
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float f, r;
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dlight_t *dl;
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r_numdlights = 32;
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memset (r_dlights, 0, sizeof(r_dlights));
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for (i=0 ; i<r_numdlights ; i++) {
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dl = &r_dlights[i];
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r = 64 * ( (i%4) - 1.5f );
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f = 64 * (i/4.0f) + 128;
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for (j=0 ; j<3 ; j++)
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dl->origin[j] = cl.refdef.vieworg[j] + cl.v_forward[j]*f +
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cl.v_right[j]*r;
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dl->color[0] = (float)(((i%6)+1) & 1);
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dl->color[1] = (float)((((i%6)+1) & 2)>>1);
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dl->color[2] = (float)((((i%6)+1) & 4)>>2);
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dl->intensity = 200;
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}
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}
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/*
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* Call before entering a new level, or after changing dlls
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*/
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void CL_PrepRefresh (void) {
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char mapname[32];
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int i;
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char name[MAX_QPATH];
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float rotate;
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vec3_t axis;
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if (!cl.configstrings[CS_MODELS+1][0])
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return;
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SCR_AddDirtyPoint (0, 0);
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SCR_AddDirtyPoint (viddef.width-1, viddef.height-1);
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/* let the refresher load the map */
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strcpy (mapname, cl.configstrings[CS_MODELS+1] + 5); /* skip "maps/" */
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mapname[strlen(mapname)-4] = 0; /* cut off ".bsp" */
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/* register models, pics, and skins */
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Com_Printf ("Map: %s\r", mapname);
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SCR_UpdateScreen ();
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re.BeginRegistration (mapname);
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Com_Printf (" \r");
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/* precache status bar pics */
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Com_Printf ("pics\r");
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SCR_UpdateScreen ();
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SCR_TouchPics ();
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Com_Printf (" \r");
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CL_RegisterTEntModels ();
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num_cl_weaponmodels = 1;
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strcpy(cl_weaponmodels[0], "weapon.md2");
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for (i=1 ; i<MAX_MODELS && cl.configstrings[CS_MODELS+i][0] ; i++) {
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strcpy (name, cl.configstrings[CS_MODELS+i]);
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name[37] = 0; /* never go beyond one line */
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if (name[0] != '*')
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Com_Printf ("%s\r", name);
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SCR_UpdateScreen ();
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Sys_SendKeyEvents ();
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if (name[0] == '#') {
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/* special player weapon model */
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if (num_cl_weaponmodels < MAX_CLIENTWEAPONMODELS) {
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strncpy(cl_weaponmodels[num_cl_weaponmodels], cl.configstrings[CS_MODELS+i]+1,
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sizeof(cl_weaponmodels[num_cl_weaponmodels]) - 1);
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num_cl_weaponmodels++;
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}
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} else {
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cl.model_draw[i] = re.RegisterModel (cl.configstrings[CS_MODELS+i]);
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if (name[0] == '*')
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cl.model_clip[i] = CM_InlineModel (cl.configstrings[CS_MODELS+i]);
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else
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cl.model_clip[i] = NULL;
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}
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if (name[0] != '*')
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Com_Printf (" \r");
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}
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Com_Printf ("images\r", i);
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SCR_UpdateScreen ();
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for (i=1 ; i<MAX_IMAGES && cl.configstrings[CS_IMAGES+i][0] ; i++) {
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cl.image_precache[i] = re.RegisterPic (cl.configstrings[CS_IMAGES+i]);
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Sys_SendKeyEvents ();
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}
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Com_Printf (" \r");
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for (i=0 ; i<MAX_CLIENTS ; i++) {
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if (!cl.configstrings[CS_PLAYERSKINS+i][0])
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continue;
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Com_Printf ("client %i\r", i);
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SCR_UpdateScreen ();
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Sys_SendKeyEvents ();
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CL_ParseClientinfo (i);
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Com_Printf (" \r");
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}
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CL_LoadClientinfo (&cl.baseclientinfo, "unnamed\\male/grunt");
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/* set sky textures and speed */
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Com_Printf ("sky\r", i);
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SCR_UpdateScreen ();
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rotate = (float)atof (cl.configstrings[CS_SKYROTATE]);
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sscanf (cl.configstrings[CS_SKYAXIS], "%f %f %f",
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&axis[0], &axis[1], &axis[2]);
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re.SetSky (cl.configstrings[CS_SKY], rotate, axis);
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Com_Printf (" \r");
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/* the renderer can now free unneeded stuff */
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re.EndRegistration ();
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/* clear any lines of console text */
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Con_ClearNotify ();
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SCR_UpdateScreen ();
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cl.refresh_prepped = true;
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cl.force_refdef = true; /* make sure we have a valid refdef */
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#if defined(OGG) || defined(CDA)
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/* start the cd track */
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if (Cvar_VariableValue("cd_shuffle")) {
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#ifdef CDA
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CDAudio_RandomPlay();
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#endif
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} else {
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#ifdef CDA
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CDAudio_Play ((int)strtol(cl.configstrings[CS_CDTRACK], (char **)NULL, 10), true);
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#endif
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#ifdef OGG
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/* OGG/Vorbis */
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if ((int)strtol(cl.configstrings[CS_CDTRACK], (char **)NULL, 10) < 10) {
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char tmp[3] = "0";
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OGG_ParseCmd(strcat(tmp, cl.configstrings[CS_CDTRACK]));
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} else {
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OGG_ParseCmd(cl.configstrings[CS_CDTRACK]);
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}
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#endif
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}
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#endif
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}
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float CalcFov (float fov_x, float width, float height) {
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float a;
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float x;
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if (fov_x < 1 || fov_x > 179)
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Com_Error (ERR_DROP, "Bad fov: %f", fov_x);
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x = width/ (float)tan(fov_x/360*M_PI);
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a = (float)atan(height/x);
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a = a*360/M_PI;
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return a;
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}
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/* gun frame debugging functions */
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void V_Gun_Next_f (void) {
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gun_frame++;
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Com_Printf ("frame %i\n", gun_frame);
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}
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void V_Gun_Prev_f (void) {
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gun_frame--;
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if (gun_frame < 0)
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gun_frame = 0;
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Com_Printf ("frame %i\n", gun_frame);
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}
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void V_Gun_Model_f (void) {
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char name[MAX_QPATH];
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if (Cmd_Argc() != 2) {
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gun_model = NULL;
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return;
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}
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Com_sprintf (name, sizeof(name), "models/%s/tris.md2", Cmd_Argv(1));
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gun_model = re.RegisterModel (name);
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}
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void V_RenderView( float stereo_separation ) {
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extern int entitycmpfnc( const entity_t *, const entity_t * );
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if (cls.state != ca_active)
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return;
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if (!cl.refresh_prepped)
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return;
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if (cl_timedemo->value) {
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if (!cl.timedemo_start)
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cl.timedemo_start = Sys_Milliseconds ();
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cl.timedemo_frames++;
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}
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/* an invalid frame will just use the exact previous refdef
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we can't use the old frame if the video mode has changed, though... */
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if ( cl.frame.valid && (cl.force_refdef || !cl_paused->value) ) {
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cl.force_refdef = false;
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V_ClearScene ();
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/* build a refresh entity list and calc cl.sim*
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this also calls CL_CalcViewValues which loads
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v_forward, etc. */
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CL_AddEntities ();
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if (cl_testparticles->value)
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V_TestParticles ();
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if (cl_testentities->value)
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V_TestEntities ();
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if (cl_testlights->value)
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V_TestLights ();
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if (cl_testblend->value) {
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cl.refdef.blend[0] = 1;
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cl.refdef.blend[1] = 0.5;
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cl.refdef.blend[2] = 0.25;
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cl.refdef.blend[3] = 0.5;
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}
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/* offset vieworg appropriately if
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we're doing stereo separation */
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if ( stereo_separation != 0 ) {
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vec3_t tmp;
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VectorScale( cl.v_right, stereo_separation, tmp );
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VectorAdd( cl.refdef.vieworg, tmp, cl.refdef.vieworg );
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}
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/* never let it sit exactly on a node line, because a water plane can
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dissapear when viewed with the eye exactly on it.
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the server protocol only specifies to 1/8 pixel, so add 1/16 in each axis */
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cl.refdef.vieworg[0] += 1.0/16;
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cl.refdef.vieworg[1] += 1.0/16;
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cl.refdef.vieworg[2] += 1.0/16;
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cl.refdef.x = scr_vrect.x;
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cl.refdef.y = scr_vrect.y;
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cl.refdef.width = scr_vrect.width;
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cl.refdef.height = scr_vrect.height;
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cl.refdef.fov_y = CalcFov (cl.refdef.fov_x, (float)cl.refdef.width, (float)cl.refdef.height);
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cl.refdef.time = cl.time*0.001f;
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cl.refdef.areabits = cl.frame.areabits;
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if (!cl_add_entities->value)
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r_numentities = 0;
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if (!cl_add_particles->value)
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r_numparticles = 0;
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if (!cl_add_lights->value)
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r_numdlights = 0;
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if (!cl_add_blend->value) {
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VectorClear (cl.refdef.blend);
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}
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cl.refdef.num_entities = r_numentities;
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cl.refdef.entities = r_entities;
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cl.refdef.num_particles = r_numparticles;
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cl.refdef.particles = r_particles;
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cl.refdef.num_dlights = r_numdlights;
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cl.refdef.dlights = r_dlights;
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cl.refdef.lightstyles = r_lightstyles;
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cl.refdef.rdflags = cl.frame.playerstate.rdflags;
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/* sort entities for better cache locality */
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qsort( cl.refdef.entities, cl.refdef.num_entities, sizeof( cl.refdef.entities[0] ), (int (*)(const void *, const void *))entitycmpfnc );
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}
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re.RenderFrame (&cl.refdef);
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if (cl_stats->value)
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Com_Printf ("ent:%i lt:%i part:%i\n", r_numentities, r_numdlights, r_numparticles);
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if ( log_stats->value && ( log_stats_file != 0 ) )
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fprintf( log_stats_file, "%i,%i,%i,",r_numentities, r_numdlights, r_numparticles);
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SCR_AddDirtyPoint (scr_vrect.x, scr_vrect.y);
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SCR_AddDirtyPoint (scr_vrect.x+scr_vrect.width-1,
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scr_vrect.y+scr_vrect.height-1);
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SCR_DrawCrosshair ();
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}
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void V_Viewpos_f (void) {
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Com_Printf ("(%i %i %i) : %i\n", (int)cl.refdef.vieworg[0],
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(int)cl.refdef.vieworg[1], (int)cl.refdef.vieworg[2],
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(int)cl.refdef.viewangles[YAW]);
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}
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void V_Init (void) {
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Cmd_AddCommand ("gun_next", V_Gun_Next_f);
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Cmd_AddCommand ("gun_prev", V_Gun_Prev_f);
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Cmd_AddCommand ("gun_model", V_Gun_Model_f);
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Cmd_AddCommand ("viewpos", V_Viewpos_f);
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crosshair = Cvar_Get ("crosshair", "0", CVAR_ARCHIVE);
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crosshair_scale = Cvar_Get ("crosshair_scale", "1", CVAR_ARCHIVE);
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cl_testblend = Cvar_Get ("cl_testblend", "0", 0);
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cl_testparticles = Cvar_Get ("cl_testparticles", "0", 0);
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cl_testentities = Cvar_Get ("cl_testentities", "0", 0);
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cl_testlights = Cvar_Get ("cl_testlights", "0", 0);
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cl_stats = Cvar_Get ("cl_stats", "0", 0);
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}
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