shownames.qc

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#include "shownames.qh"

#include <client/draw.qh>
#include <client/hud/_mod.qh>
#include <client/view.qh>
#include <common/constants.qh>
#include <common/ent_cs.qh>
#include <common/net_linked.qh>
#include <common/resources/cl_resources.qh>
#include <common/teams.qh>
#include <lib/csqcmodel/cl_model.qh>

// this.isactive = player is in range and coordinates/status (health and armor) are up to date
// this.origin = player origin
// this.healthvalue
// this.armorvalue
// this.sameteam = player is on same team as local client
// this.fadedelay = time to wait before name tag starts fading in for enemies
// this.pointtime = last time you pointed at this player
// this.csqcmodel_isdead = value of csqcmodel_isdead to know when the player is dead or not

LinkedList shownames_ent;
STATIC_INIT(shownames_ent)
{
    shownames_ent = LL_NEW();
    for (int i = 0; i < maxclients; ++i)
    {
        entity e = new_pure(shownames_tag);
        e.sv_entnum = i + 1;
        LL_PUSH(shownames_ent, e);
    }
}

// used by the antioverlap code
.vector box_ofs;
.vector box_org;

const float SHOWNAMES_FADESPEED = 4;
const float SHOWNAMES_FADEDELAY = 0;
void Draw_ShowNames(entity this)
{
    if (this.sv_entnum == current_player + 1) // self or spectatee
    {
        if (!autocvar_chase_active)
            return;

        if (!autocvar_hud_shownames_self
            && !(spectatee_status > 0 && time <= spectatee_status_changed_time + 1))
        {
            return;
        }
    }

    if (!this.sameteam && !autocvar_hud_shownames_enemies) return;
    bool hit;
    if (!autocvar_hud_shownames_crosshairdistance && this.sameteam)
    {
        hit = true;
    }
    else
    {
        traceline(view_origin, this.origin, MOVE_NOMONSTERS, this);
        hit = !(trace_fraction < 1 && (trace_networkentity != this.sv_entnum && trace_ent.entnum != this.sv_entnum));
    }
    // handle tag fading
    int overlap = -1;
    vector o = project_3d_to_2d(this.origin + eZ * autocvar_hud_shownames_offset);
    if (autocvar_hud_shownames_crosshairdistance)
    {
        float d = autocvar_hud_shownames_crosshairdistance;
        float w = o.x - vid_conwidth / 2;
        float h = o.y - vid_conheight / 2;
        if (d * d > w * w + h * h) this.pointtime = time;
        if (this.pointtime + autocvar_hud_shownames_crosshairdistance_time <= time)
            overlap = 1;
        else if(!autocvar_hud_shownames_crosshairdistance_antioverlap)
            overlap = 0;
    }

    // o.z is < 0 when o is behind me
    #define OFF_SCREEN(o) (o.z < 0 || o.x < 0 || o.y < 0 || o.x > vid_conwidth || o.y > vid_conheight)
    if (overlap == -1 && autocvar_hud_shownames_antioverlap)
    {
        // fade tag out if another tag that is closer to you overlaps
        entity entcs = NULL;
        LL_EACH(shownames_ent, it != this, {
            entcs = entcs_receiver(i);
            if (!(entcs && entcs.has_origin))
                continue;
            vector eo = project_3d_to_2d(it.origin + eZ * autocvar_hud_shownames_offset);
            if (OFF_SCREEN(eo)) continue;
            eo.z = 0;
            if (boxesoverlap(this.box_org - this.box_ofs, this.box_org + this.box_ofs, it.box_org - it.box_ofs, it.box_org + it.box_ofs)
                && vlen2(it.origin - view_origin) < vlen2(this.origin - view_origin))
            {
                overlap = 1;
                break;
            }
        });
    }
    if (!this.fadedelay) this.fadedelay = time + SHOWNAMES_FADEDELAY;
    if (this.csqcmodel_isdead) // dead player, fade out slowly
    {
        this.alpha = max(0, this.alpha - SHOWNAMES_FADESPEED * 0.25 * frametime);
    }
    else if (!this.sameteam && !hit) // view blocked, fade out
    {
        this.alpha = max(0, this.alpha - SHOWNAMES_FADESPEED * frametime);
        this.fadedelay = 0; // reset fade in delay, enemy has left the view
    }
    else if (OFF_SCREEN(o)) // out of view, fade out
    {
        this.alpha = max(0, this.alpha - SHOWNAMES_FADESPEED * frametime);
    }
    else if (overlap > 0) // tag overlap detected, fade out
    {
        float minalpha = autocvar_hud_shownames_antioverlap_minalpha;
        if (this.alpha >= minalpha)
            this.alpha = max(minalpha, this.alpha - SHOWNAMES_FADESPEED * frametime);
        else
            this.alpha = min(minalpha, this.alpha + SHOWNAMES_FADESPEED * frametime);
    }
    else if (this.sameteam)  // fade in for team mates
    {
        this.alpha = min(1, this.alpha + SHOWNAMES_FADESPEED * frametime);
    }
    else if (time > this.fadedelay || this.alpha > 0)  // fade in for enemies
    {
        this.alpha = min(1, this.alpha + SHOWNAMES_FADESPEED * frametime);
    }
    float a = autocvar_hud_shownames_alpha * this.alpha;
    if (!this.sameteam || (this.sv_entnum == player_localentnum))
    {
        float f = entcs_GetAlpha(this.sv_entnum - 1);
        if (f == 0) f = 1;
        if (f < 0) f = 0;
        a *= f;
    }
    if (MUTATOR_CALLHOOK(ShowNames_Draw, this, a)) return;
    a = M_ARGV(1, float);
    float dist = -1; // dist will be calculated only when really needed to avoid wasting a vlen call
    if (autocvar_hud_shownames_maxdistance)
    {
        float max_dist = min(autocvar_hud_shownames_maxdistance, max_shot_distance);
        if (vdist(this.origin - view_origin, >=, max_dist))
            return;
        if (vdist(this.origin - view_origin, >=, autocvar_hud_shownames_mindistance))
        {
            float f = autocvar_hud_shownames_maxdistance - autocvar_hud_shownames_mindistance;
            if (dist == -1)
                dist = vlen(this.origin - view_origin);
            a *= (f - max(0, dist - autocvar_hud_shownames_mindistance)) / f;
        }
    }
    else if (vdist(this.origin - view_origin, >=, max_shot_distance))
        return;
    if (!a || o.z < 0) return;

    o.z = 0;
    float resize = 1;
    if (autocvar_hud_shownames_resize && vdist(this.origin - view_origin, >=, autocvar_hud_shownames_mindistance))
    {
        // limit resize so its never smaller than 0.5... gets unreadable
        float f = autocvar_hud_shownames_maxdistance - autocvar_hud_shownames_mindistance;
        if (dist == -1)
            dist = vlen(this.origin - view_origin);
        resize = 0.5 + 0.5 * (f - max(0, dist - autocvar_hud_shownames_mindistance)) / f;
    }
    vector mySize = (vec2(autocvar_hud_shownames_aspect, 1)) * autocvar_hud_shownames_fontsize;
    vector myPos = o - vec2(0.5 * mySize.x, mySize.y);
    mySize.x *= resize;
    mySize.y *= resize;
    myPos.x += 0.5 * (mySize.x / resize - mySize.x);
    myPos.y += (mySize.y / resize - mySize.y);

    this.box_org = myPos + mySize / 2;
    this.box_ofs = mySize / 2;

    float namewidth = mySize.x;
    if (autocvar_hud_shownames_status && this.sameteam && !this.csqcmodel_isdead)
    {
        vector pos = myPos + eY * autocvar_hud_shownames_fontsize * resize;
        vector sz = vec2(0.5 * mySize.x, resize * autocvar_hud_shownames_statusbar_height);

        this.box_ofs.x = max(mySize.x / 2, sz.x); // sz.x is already half as wide
        this.box_ofs.y += sz.y / 2;
        this.box_org.y = myPos.y + (mySize.y + sz.y) / 2;
        // antioverlap debug code
        //drawfill(this.box_org - this.box_ofs, this.box_ofs * 2, '1 1 1', a / 2, DRAWFLAG_NORMAL);

        if (autocvar_hud_shownames_statusbar_highlight)
            drawfill(pos + eX * 0.25 * mySize.x, sz, '0.7 0.7 0.7', a / 2, DRAWFLAG_NORMAL);
        if (this.healthvalue > 0)
        {
            HUD_Panel_DrawProgressBar(pos, sz, "nametag_statusbar",
                this.healthvalue / autocvar_hud_panel_healtharmor_maxhealth, false, 1, '1 0 0', a,
                DRAWFLAG_NORMAL);
        }
        if (GetResource(this, RES_ARMOR) > 0)
        {
            HUD_Panel_DrawProgressBar(pos + eX * 0.5 * mySize.x, sz, "nametag_statusbar",
                GetResource(this, RES_ARMOR) / autocvar_hud_panel_healtharmor_maxarmor, false, 0, '0 1 0', a,
                DRAWFLAG_NORMAL);
        }
    }
    // antioverlap debug code
    //else drawfill(this.box_org - this.box_ofs, this.box_ofs * 2, '1 1 1', a / 2, DRAWFLAG_NORMAL);

    string s = entcs_GetName(this.sv_entnum - 1);
    if ((autocvar_hud_shownames_decolorize == 1 && teamplay) || autocvar_hud_shownames_decolorize == 2)
        s = playername(s, entcs_GetTeam(this.sv_entnum - 1), true);
    drawfontscale = '1 1 0' * resize;
    s = textShortenToWidth(s, namewidth, '1 1 0' * autocvar_hud_shownames_fontsize, stringwidth_colors);
    float width = stringwidth(s, true, '1 1 0' * autocvar_hud_shownames_fontsize);
    myPos.x = o.x - (width * resize) / 2;
    drawcolorcodedstring(myPos, s, '1 1 0' * autocvar_hud_shownames_fontsize, a, DRAWFLAG_NORMAL);
    drawfontscale = '1 1 0';
}

void Draw_ShowNames_All()
{
    if (!autocvar_hud_shownames) return;
    LL_EACH(shownames_ent, true, {
        entity entcs = entcs_receiver(i);
        if (!entcs)
        {
            make_pure(it);
            continue;
        }
        make_impure(it);
        assert(getthink(entcs), eprint(entcs));
        getthink(entcs)(entcs);
        if (!entcs.has_origin) continue;
        if (entcs.m_entcs_private)
        {
            it.healthvalue = entcs.healthvalue;
            SetResourceExplicit(it, RES_ARMOR, GetResource(entcs, RES_ARMOR));
            it.sameteam = true;
        }
        else
        {
            it.healthvalue = 0;
            SetResourceExplicit(it, RES_ARMOR, 0);
            it.sameteam = false;
        }
        bool dead = entcs_IsDead(i) || entcs_IsSpectating(i);
        if ((!it.csqcmodel_isdead || it.alpha > 0) && entcs.origin != it.origin)
            setorigin(it, entcs.origin);
        it.csqcmodel_isdead = dead;
        Draw_ShowNames(it);
    });
}