Live HUD countdown after the bomb is planted, colour-coded, with a per-CT defusable / too-late notice.
csb_c4_timer.sma v1.0.0
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/*
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* CSB C4 Timer
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* Copyright (C) 2026 counter-strike-boost.com
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*
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* Once the bomb is planted this shows a live HUD countdown of the exact seconds
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* left, based on mp_c4timer and the moment of the plant. The colour ramps from
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* green to red as the fuse burns down, and each CT is told whether they can
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* still reach and defuse it in time given their defuse kit.
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*
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* Inspired by the classic "C4 Timer" plugins for AMX Mod X. This is an
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* independent GPL re-implementation; no original code is reused.
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option)
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* any later version. It is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details: <https://www.gnu.org/licenses/>.
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*/
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#include <amxmodx>
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#include <cstrike>
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new const PLUGIN[] = "CSB C4 Timer"
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new const VERSION[] = "1.0.0"
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new const AUTHOR[] = "counter-strike-boost.com"
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/* stock defuse timings without / with a defuse kit */
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#define DEFUSE_NOKIT 10.0
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#define DEFUSE_KIT 5.0
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new g_pEnabled, g_pBeep
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new g_pC4Timer
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new bool:g_bPlanted = false
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new Float:g_flExplodeAt
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new g_iSync
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public plugin_init()
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{
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register_plugin(PLUGIN, VERSION, AUTHOR)
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g_pEnabled = register_cvar("csb_c4timer_enabled", "1")
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g_pBeep = register_cvar("csb_c4timer_beep", "1")
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g_pC4Timer = get_cvar_pointer("mp_c4timer")
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g_iSync = CreateHudSyncObj()
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register_logevent("evPlanted", 3, "2=Planted_The_Bomb")
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register_logevent("evDefused", 3, "2=Defused_The_Bomb")
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/* new round resets everything (HLTV new-round message) */
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register_event("HLTV", "evNewRound", "a", "1=0", "2=0")
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register_event("TextMsg", "evRestart", "a", "2=#Game_will_restart_in")
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}
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public evPlanted()
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{
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if (!get_pcvar_num(g_pEnabled))
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return
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new Float:c4timer = g_pC4Timer ? get_pcvar_float(g_pC4Timer) : 45.0
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if (c4timer <= 0.0)
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c4timer = 45.0
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g_bPlanted = true
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g_flExplodeAt = get_gametime() + c4timer
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set_task(0.2, "taskTick", 0, _, _, "b")
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}
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public evDefused()
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{
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stopTimer()
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}
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public evNewRound()
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{
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stopTimer()
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}
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public evRestart()
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{
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stopTimer()
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}
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stopTimer()
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{
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if (!g_bPlanted)
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return
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g_bPlanted = false
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remove_task(0)
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ClearSyncHud(0, g_iSync)
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}
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public taskTick()
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{
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if (!g_bPlanted)
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{
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remove_task(0)
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return
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}
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new Float:remain = g_flExplodeAt - get_gametime()
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if (remain <= 0.0)
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{
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stopTimer()
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return
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}
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new r, g, b
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fuseColor(remain, r, g, b)
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/* the bomb is a shared threat - draw it to everyone, then add the
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personal defuse note only for living CTs */
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new players[32], num, pid
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get_players(players, num, "ch")
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new bars[16]
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beepBars(remain, bars, charsmax(bars))
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for (new i = 0; i < num; i++)
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{
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pid = players[i]
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new note[64]
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note[0] = 0
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if (is_user_alive(pid) && cs_get_user_team(pid) == CS_TEAM_CT)
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defuseNote(pid, remain, note, charsmax(note))
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set_hudmessage(r, g, b, 0.02, 0.20, 0, 0.0, 0.3, 0.0, 0.0, -1)
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if (note[0])
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ShowSyncHudMsg(pid, g_iSync, "C4: %.1f %s^n%s", remain, bars, note)
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else
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ShowSyncHudMsg(pid, g_iSync, "C4: %.1f %s", remain, bars)
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}
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}
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fuseColor(Float:remain, &r, &g, &b)
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{
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if (remain <= 5.0) { r = 255; g = 0; b = 0; }
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else if (remain <= 15.0) { r = 255; g = 140; b = 0; }
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else { r = 0; g = 220; b = 0; }
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}
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beepBars(Float:remain, out[], len)
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{
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if (!get_pcvar_num(g_pBeep))
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{
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out[0] = 0
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return
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}
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/* more filled bars the closer the explosion is */
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new filled
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if (remain <= 5.0) filled = 5
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else if (remain <= 10.0) filled = 4
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else if (remain <= 20.0) filled = 3
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else if (remain <= 30.0) filled = 2
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else filled = 1
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new p = 0
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for (new i = 0; i < 5 && p < len - 1; i++)
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out[p++] = (i < filled) ? '|' : '.'
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out[p] = 0
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}
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defuseNote(id, Float:remain, out[], len)
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{
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new Float:need = cs_get_user_defuse(id) ? DEFUSE_KIT : DEFUSE_NOKIT
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if (remain >= need)
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formatex(out, len, "Defusable (%.0fs needed)", need)
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else
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formatex(out, len, "TOO LATE to defuse")
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}
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