221 lines
6.0 KiB
Plaintext
221 lines
6.0 KiB
Plaintext
/*
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* Copyright (c) 2016-2022 Vera Visions LLC.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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int trace_surfaceflagsi;
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/*QUAKED env_sun (1 0 0) (-8 -8 -8) (8 8 8)
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"targetname" : Name
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"pitch" : Sun glow pitch.
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"angle" : Sun glow angle.
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"use_angles" : Use the 'angles' yaw value instead of the one from 'angle'.
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STUB!
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-------- TRIVIA --------
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This entity was introduced in Half-Life 2 (2004).
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*/
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#define FLARE_SIZE [128,128]
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int
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Util_IsSky(vector pos)
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{
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if (serverkeyfloat("*bspversion") == BSPVER_HL)
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if (getsurfacetexture(world, getsurfacenearpoint(world, pos)) == "sky") {
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return (1);
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}
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if (trace_surfaceflagsi & SURF_SKY) {
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return (1);
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}
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return (0);
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}
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class env_sun:NSEntity
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{
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public:
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void env_sun(void);
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virtual void Spawned(void);
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virtual void postdraw(void);
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virtual float predraw(void);
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virtual void SpawnKey(string,string);
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virtual void RendererRestarted(void);
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private:
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vector m_vecLensPos;
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float m_flLensAlpha;
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int m_iUseAngles;
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};
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void
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env_sun::RendererRestarted(void)
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{
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precache_pic("textures/sfx/flare1");
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precache_pic("textures/sfx/flare2");
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precache_pic("textures/sfx/flare3");
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precache_pic("textures/sfx/flare4");
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}
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float
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env_sun::predraw(void)
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{
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return (PREDRAW_NEXT);
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}
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void
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env_sun::postdraw(void)
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{
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if (!m_iUseAngles)
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makevectors(m_vecLensPos);
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else {
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vector ang;
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ang = m_vecLensPos;
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ang[1] = angles[1];
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makevectors(ang);
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}
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v_forward *= -1;
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vector lens_pos = getproperty(VF_ORIGIN) + (v_forward * 16384);
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vector lens_1 = project(lens_pos) - (FLARE_SIZE / 2);
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makevectors(getproperty(VF_ANGLES));
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vector v = normalize(lens_pos - getproperty(VF_ORIGIN));
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float flDot = v * v_forward;
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if (flDot < 0.15) {
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return;
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} else {
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traceline(getproperty(VF_ORIGIN), lens_pos, TRUE, self);
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if (Util_IsSky(trace_endpos) && flDot > 0.8) {
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/* this never happens because the above trace fails. */
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m_flLensAlpha = bound(0.0, m_flLensAlpha + (clframetime * 2), 1.0);
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} else {
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m_flLensAlpha = bound(0.0, m_flLensAlpha - (clframetime * 2), 1.0);
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}
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}
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if (m_flLensAlpha <= 0.0f) {
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return;
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}
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makevectors(getproperty(VF_CL_VIEWANGLES));
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vector lens_m = project(getproperty(VF_ORIGIN) + (v_forward * 16384));
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vector c = (lens_1 - lens_m) * 1.5;
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drawpic(lens_1, "textures/sfx/flare1", FLARE_SIZE, [1,1,1] * m_flLensAlpha, 1.0f, DRAWFLAG_ADDITIVE);
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drawpic(lens_1 - c * 0.1, "textures/sfx/flare2", FLARE_SIZE, [1,1,1] * m_flLensAlpha, 1.0f, DRAWFLAG_ADDITIVE);
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drawpic(lens_1 + c * 0.2, "textures/sfx/flare3", FLARE_SIZE, [1,1,1] * m_flLensAlpha, 1.0f, DRAWFLAG_ADDITIVE);
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drawpic(lens_1 - c * 0.3, "textures/sfx/flare4", FLARE_SIZE, [1,1,1] * m_flLensAlpha, 1.0f, DRAWFLAG_ADDITIVE);
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drawpic(lens_1 + c * 0.4, "textures/sfx/flare2", FLARE_SIZE, [1,1,1] * m_flLensAlpha, 1.0f, DRAWFLAG_ADDITIVE);
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drawpic(lens_1 - c * 0.5, "textures/sfx/flare3", FLARE_SIZE, [1,1,1] * m_flLensAlpha, 1.0f, DRAWFLAG_ADDITIVE);
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float flGlare = bound(0.0, 1.0 - (vlen(c) / 400), 1.0f) * m_flLensAlpha;
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drawfill(video_mins, video_res, [1,1,1], flGlare * 0.25f, DRAWFLAG_ADDITIVE);
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}
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void
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env_sun::Spawned(void)
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{
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super::Spawned();
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setorigin(this, origin);
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makevectors(m_vecLensPos);
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m_vecLensPos = vectoangles(v_forward);
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localcmd(sprintf("r_shadows_throwdirection %v\n", v_forward));
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}
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void
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env_sun::SpawnKey(string strField, string strKey)
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{
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switch (strField) {
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case "pitch":
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m_vecLensPos[0] = -stof(strKey);
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break;
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case "angle":
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m_vecLensPos[1] = stof(strKey);
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break;
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case "use_angles":
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m_iUseAngles = stoi(strKey);
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break;
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default:
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super::SpawnKey(strField, strKey);
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}
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}
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void
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env_sun::env_sun(void)
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{
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isCSQC = true;
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}
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void
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env_sun_lensflare(vector m_vecLensPos, float m_flLensAlpha, vector vecColor)
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{
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vector lens_pos = project(m_vecLensPos);
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vector lens_1 = lens_pos - (FLARE_SIZE / 2);
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vector player_pos = getproperty(VF_ORIGIN);
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vector player_angle = getproperty(VF_CL_VIEWANGLES);
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m_flLensAlpha *= 0.5f;
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if (m_flLensAlpha <= 0.0f) {
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return;
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}
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{
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vector delta;
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float fov;
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makevectors(player_angle);
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delta = normalize (m_vecLensPos - player_pos);
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fov = delta * v_forward;
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/* we're in field-of-view */
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if (fov > 0.3) {
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traceline(player_pos, m_vecLensPos, TRUE, self);
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if (trace_fraction != 1.0) {
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return;
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}
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} else {
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return;
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}
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}
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player_angle[0] *= -1;
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vector test1, test2;
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test1 = project(m_vecLensPos);
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test2 = video_res / 2;
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float dist_alpha = 1.0 - bound(0.0, vlen(player_pos - m_vecLensPos) / 1024, 1.0);
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vector c = (test2 - test1) * 1.25f;
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m_flLensAlpha = bound(0.0, 1.0 - (vlen(c) / 350), 1.0f) * m_flLensAlpha;
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m_flLensAlpha *= dist_alpha;
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dist_alpha = 1.0 - bound(0.0, vlen(player_pos - m_vecLensPos) / 512, 1.0);
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drawpic(lens_1, "textures/sfx/flare1", FLARE_SIZE, vecColor * m_flLensAlpha, 1.0f, DRAWFLAG_ADDITIVE);
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drawpic(lens_1 - c * 0.1, "textures/sfx/flare2", FLARE_SIZE, vecColor * m_flLensAlpha, 1.0f, DRAWFLAG_ADDITIVE);
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drawpic(lens_1 + c * 0.2, "textures/sfx/flare3", FLARE_SIZE, vecColor * m_flLensAlpha, 1.0f, DRAWFLAG_ADDITIVE);
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drawpic(lens_1 - c * 0.3, "textures/sfx/flare4", FLARE_SIZE, vecColor * m_flLensAlpha, 1.0f, DRAWFLAG_ADDITIVE);
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drawpic(lens_1 + c * 0.4, "textures/sfx/flare2", FLARE_SIZE, vecColor * m_flLensAlpha, 1.0f, DRAWFLAG_ADDITIVE);
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drawpic(lens_1 - c * 0.5, "textures/sfx/flare3", FLARE_SIZE, vecColor * m_flLensAlpha, 1.0f, DRAWFLAG_ADDITIVE);
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m_flLensAlpha = bound(0.0, 1.0 - (vlen(c) / 100), 1.0f) * m_flLensAlpha;
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drawfill(video_mins, video_res, vecColor, m_flLensAlpha * dist_alpha);
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}
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