Portable Half-Life SDK. GoldSource and Xash3D. Crossplatform.
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/***
*
* Copyright (c) 1996-2002, Valve LLC. All rights reserved.
*
* This product contains software technology licensed from Id
* Software, Inc. ("Id Technology"). Id Technology (c) 1996 Id Software, Inc.
* All Rights Reserved.
*
* Use, distribution, and modification of this source code and/or resulting
* object code is restricted to non-commercial enhancements to products from
* Valve LLC. All other use, distribution, or modification is prohibited
* without written permission from Valve LLC.
*
****/
//
// Geiger.cpp
//
// implementation of CHudAmmo class
//
#include "hud.h"
#include "cl_util.h"
#include <string.h>
#include <time.h>
#include <stdio.h>
#include "event_api.h"
#include "event_args.h"
#include "triangleapi.h"
#include "pm_shared.h"
#include "pm_defs.h"
#include "pmtrace.h"
#include "parsemsg.h"
extern vec3_t v_origin; // last view origin
extern vec3_t v_angles; // last view angle
extern vec3_t v_cl_angles; // last client/mouse angle
extern vec3_t v_sim_org; // last sim origin
DECLARE_MESSAGE(m_Glow, Glow)
int CHudGlow::Init(void)
{
HOOK_MESSAGE(Glow);
m_iFlags = 0;
gHUD.AddHudElem(this);
srand((unsigned)time(NULL));
return 1;
};
int CHudGlow::VidInit(void)
{
m_iFlags = 0;
m_hSprite = SPR_Load("sprites/glow01.spr");
return 1;
};
int CHudGlow::MsgFunc_Glow(const char *pszName, int iSize, void *pbuf)
{
BEGIN_READ(pbuf, iSize);
int fOn = READ_BYTE();
if (fOn)
{
m_iFlags |= HUD_ACTIVE;
}
else
{
m_iFlags &= ~HUD_ACTIVE;
}
return 1;
}
int CHudGlow::Draw(float flTime)
{
return 1;
}
#define GLOW_TRACE_DISTANCE 80.0f
#define GLOW_MAX_ALPHA 1.0f
void CHudGlow::DrawGlow(void)
{
if (gHUD.m_iHideHUDDisplay & HIDEHUD_ALL)
return;
if (!(m_iFlags & HUD_ACTIVE))
return;
cl_entity_t* ent = gEngfuncs.GetViewModel();
if (!ent)
return;
float r, g, b, a;
vec3_t origin, forward, right, up, screen, point;
struct model_s *hSpriteModel;
int size = 10;
r = 1.0f; g = b = 0.95f;
VectorCopy(ent->attachment[0], origin);
AngleVectors(v_angles, forward, right, up);
vec3_t tracedir;
VectorScale(forward, GLOW_TRACE_DISTANCE, tracedir);
VectorAdd(tracedir, origin, tracedir);
pmtrace_t * trace = gEngfuncs.PM_TraceLine(origin, tracedir, PM_TRACELINE_PHYSENTSONLY, 2, -1);
if (trace->fraction != 1.0)
{
a = ((trace->fraction * GLOW_MAX_ALPHA) / GLOW_TRACE_DISTANCE) * 100;
}
else
{
a = GLOW_MAX_ALPHA;
}
a = Q_min(a, GLOW_MAX_ALPHA);
// gEngfuncs.Con_Printf("Glow opacity: %f.\n", a);
gEngfuncs.pTriAPI->WorldToScreen(origin, point);
hSpriteModel = (struct model_s *)gEngfuncs.GetSpritePointer(m_hSprite);
gEngfuncs.pTriAPI->SpriteTexture(hSpriteModel, 0);
gEngfuncs.pTriAPI->RenderMode(kRenderTransAdd);
gEngfuncs.pTriAPI->CullFace( TRI_NONE );
gEngfuncs.pTriAPI->Color4f( r, g, b, a );
gEngfuncs.pTriAPI->Begin( TRI_QUADS );
gEngfuncs.pTriAPI->TexCoord2f(1, 0);
VectorMA(origin, size, up, point);
VectorMA(point, size, right, point);
gEngfuncs.pTriAPI->Vertex3fv(point);
gEngfuncs.pTriAPI->TexCoord2f(0, 0);
VectorMA(origin, size, up, point);
VectorMA(point, -size, right, point);
gEngfuncs.pTriAPI->Vertex3fv(point);
gEngfuncs.pTriAPI->TexCoord2f(0, 1);
VectorMA(origin, -size, up, point);
VectorMA(point, -size, right, point);
gEngfuncs.pTriAPI->Vertex3fv(point);
gEngfuncs.pTriAPI->TexCoord2f(1, 1);
VectorMA(origin, -size, up, point);
VectorMA(point, size, right, point);
gEngfuncs.pTriAPI->Vertex3fv(point);
gEngfuncs.pTriAPI->End();
return;
}