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#include <amxmodx>
#include <amxmisc>
#include <celltrie>
#include <fakemeta>
#include <fun>
#include <cstrike>
#include <hamsandwich>

#define PLUGIN "Frost Trap"
#define VERSION "1.11"
#define AUTHOR "R3X"

#define MAX_TRAPS 70

#define OVERRIDE_NADE_CLASS "grenade"
#define OVERRIDE_NADE_MODEL "w_smokegrenade.mdl"

#define SOUND_FREEZE "squeek/sqk_blast1.wav"
#define SOUND_RESOTRE "common/bodydrop1.wav"

#define TASK_REMOVE_FROZE 1000

new const gszClasses[][]={
     "func_button",
     "func_rot_button",
     "button_target"
};

new Trie:gTraps;
new giEntsTrigger[MAX_TRAPS];
new giPointer=0;

new smokeSpr, exploSpr, trailSpr;

new gcvarDistribute, gcvarLimit, gcvarCarry, gcvarCost;
new gcvarDistance, gcvarTime;

new gmsgAmmoPickup;

new giGrenades[33];

public plugin_init() {
     register_plugin(PLUGIN, VERSION, AUTHOR);
     register_cvar("freezetrap",VERSION,FCVAR_SERVER|FCVAR_SPONLY);
      
     register_event( "TextMsg", "eventRound", "a", "2&#Game_will_restart_in" );
     register_event("TextMsg", "eventRound", "a", "2&#Game_C")
     register_logevent( "eventRound",2, "1=Round_Start");
      
     RegisterHam(Ham_Spawn, "player","fwSpawn",1);
     register_forward(FM_SetModel, "fwSetModel",1);
     register_forward(FM_Think, "fwThink",1);
      
     gcvarDistribute=register_cvar("freezetrap_distribute","0");
     gcvarLimit=register_cvar("freezetrap_limit","1");
     gcvarCarry=register_cvar("freezetrap_carry","1");
     gcvarCost=register_cvar("freezetrap_cost","5000");
      
     gcvarDistance=register_cvar("freezetrap_distance","150.0",0,150.0);
     gcvarTime=register_cvar("freezetrap_time","10.0",0,10.0);
      
     gTraps = TrieCreate();
      
     register_clcmd("amx_give_sg","cmd_amx_give_sg",ADMIN_KICK, "<nick>");
     register_clcmd("say /freeze","buyFreezeNade");
      
     gmsgAmmoPickup = get_user_msgid("AmmoPickup");
}
public eventRound(){
     new tid;
     //512? i`m not sure, so doubled
     for(new i=0;i<=1024;i++){
         tid=i+TASK_REMOVE_FROZE;
         if(task_exists(tid)){
             remove_task(tid);
             restoreTrap(tid);
         }
     }
     for(new i=1;i<33;i++)
         giGrenades[i]=0;
}
public fwSpawn(id){
     if(get_pcvar_num(gcvarDistribute)==1){
         set_task(0.2, "taskGiveNade",id);
     }
     return HAM_IGNORED;
}
public fwUse(this, idcaller, idactivator, use_type, Float:value){
     if(task_exists(this+TASK_REMOVE_FROZE)){
         return HAM_SUPERCEDE;
     }
     return HAM_IGNORED;
}

public plugin_precache(){
     precache_sound("warcraft3/frostnova.wav");
     precache_sound(SOUND_FREEZE);
     precache_sound(SOUND_RESOTRE);
     precache_sound("items/gunpickup2.wav");  
      
     trailSpr = precache_model("sprites/laserbeam.spr");
     smokeSpr = precache_model("sprites/steam1.spr");
     exploSpr = precache_model("sprites/shockwave.spr");
}
public fwThink(ent){
     if(!pev_valid(ent))
         return FMRES_IGNORED;
     if(isWhatIWaitFor(ent) && pev(ent, pev_iuser3)){
         new Float:dmgtime;
         pev(ent,pev_dmgtime,dmgtime);
         if(dmgtime > get_gametime()) return FMRES_IGNORED;
         frostTraps(ent);
     }
     return FMRES_IGNORED;
}
public fwSetModel(ent, const model[]){
     if(!pev_valid(ent))
         return FMRES_IGNORED;
      
     if(isWhatIWaitFor(ent) && equal(model[7], OVERRIDE_NADE_MODEL)){
         set_pev(ent, pev_iuser3, 1);
          
         // glowshell
         set_pev(ent,pev_rendermode,kRenderNormal);
         set_pev(ent,pev_renderfx,kRenderFxGlowShell);
         set_pev(ent,pev_rendercolor,Float:{0.0, 200.0, 200.0});
         set_pev(ent,pev_renderamt,16.0);
          
         set_beamfollow(ent,10,10,Float:{0.0, 200.0, 200.0},170);
     }
     return FMRES_IGNORED;
}
isWhatIWaitFor(ent){
     new szClass[32];
     pev(ent, pev_classname, szClass, 31);
     return equal(szClass, OVERRIDE_NADE_CLASS);
}

public frostTraps(ent){
     if(!pev_valid(ent))
         return;
     new Float:fOrigin[3];
     pev(ent, pev_origin, fOrigin);
     fOrigin[2] += 30.0;
     makeExplosion(ent, fOrigin);
     engfunc(EngFunc_RemoveEntity, ent);
      
     new szTargetName[32];
     new ent2=-1, item;
     do{
         ent2 = engfunc(EngFunc_FindEntityInSphere, ent2, fOrigin, get_pcvar_float(gcvarDistance));
         if(pev_valid(ent2)){
             pev(ent2, pev_targetname, szTargetName, 31);
              
             if(TrieGetCell(gTraps, szTargetName,item)){
                 bufferSets(ent2);
                 if(!task_exists(ent2+TASK_REMOVE_FROZE))
                     frostTrap(ent2, item);
             }
         }
     }while(ent2);
}
frostTrap(ent, item){
     RegisterHamFromEntity(Ham_Use, ent, "fwUse", 0)
      
     new Float:iRestore=get_pcvar_float(gcvarTime);
     bufferSets(ent);
      
     frost(ent, iRestore, 150.0);
     frost(giEntsTrigger[item],iRestore, 255.0);
      
     emit_sound(ent,CHAN_BODY,SOUND_FREEZE,VOL_NORM,ATTN_NORM,0,PITCH_NORM);
}
public restoreTrap(ent){
     ent-=TASK_REMOVE_FROZE;
     if(pev_valid(ent)){
         new Float:fVec[3];
         set_pev(ent, pev_rendermode, pev(ent, pev_iuser1));
         set_pev(ent, pev_renderfx, pev(ent, pev_iuser2));
         pev(ent, pev_vuser1, fVec)
         set_pev(ent, pev_rendercolor, fVec);
          
         pev(ent, pev_fuser1, fVec[0]);
         set_pev(ent, pev_renderamt, fVec[0]);
          
         emit_sound(ent,CHAN_BODY,SOUND_RESOTRE,VOL_NORM,ATTN_NORM,0,PITCH_NORM);
     }
}
bufferSets(ent){
     //Buffer
     new Float:fVec[3];
     set_pev(ent, pev_iuser1, pev(ent, pev_rendermode));
     set_pev(ent, pev_iuser2, pev(ent, pev_renderfx));
      
     pev(ent, pev_rendercolor, fVec);
     set_pev(ent, pev_vuser1, fVec);
      
     pev(ent, pev_renderamt, fVec[0]);
     set_pev(ent, pev_fuser1, fVec[0]);
}
frost(ent, Float:fRestore=10.0, Float:fAmount=16.0){
     set_pev(ent,pev_rendermode,kRenderTransColor);
     set_pev(ent,pev_renderfx,kRenderFxExplode);
     set_pev(ent,pev_rendercolor,Float:{0.0, 200.0, 200.0});
     set_pev(ent,pev_renderamt,fAmount);
     if(!task_exists(ent+TASK_REMOVE_FROZE)){
         set_task(fRestore, "restoreTrap",ent+TASK_REMOVE_FROZE);
     }
}
makeExplosion(ent, const Float:fOrigin[3]){
     // make the smoke
     message_begin(MSG_BROADCAST,SVC_TEMPENTITY);
     write_byte(TE_SMOKE);
     write_coord(floatround(fOrigin[0])); // x
     write_coord(floatround(fOrigin[1])); // y
     write_coord(floatround(fOrigin[2])); // z
     write_short(smokeSpr); // sprite
     write_byte(random_num(30,40)); // scale
     write_byte(5); // framerate
     message_end();
      
     create_blast(fOrigin);
      
     emit_sound(ent,CHAN_BODY,"warcraft3/frostnova.wav",VOL_NORM,ATTN_NORM,0,PITCH_NORM);
}
//Las Machinas de la muerte

ArobCoChcesz(const szClass[]){
     new szTarget[32];
     new ent=-1;
     do{
         if(giPointer >= MAX_TRAPS)
             break;
         ent = engfunc(EngFunc_FindEntityByString, ent, "classname", szClass);
         if(pev_valid(ent)){
             pev(ent, pev_target, szTarget, 31);
             if(szTarget[0]){
                 TrieSetCell(gTraps, szTarget, giPointer);
                 giEntsTrigger[giPointer] =ent;
                 giPointer++;
             }
         }
     }while(ent);
}
public plugin_cfg(){
     for(new i=0; i<sizeof gszClasses; i++){
         ArobCoChcesz(gszClasses[i]);
     }
}
//Effect
create_blast(const Float:originF[3])
{
new origin[3];
FVecIVec(originF,origin);

// smallest ring
message_begin(MSG_BROADCAST,SVC_TEMPENTITY);
write_byte(TE_BEAMCYLINDER);
write_coord(origin[0]); // x
write_coord(origin[1]); // y
write_coord(origin[2]); // z
write_coord(origin[0]); // x axis
write_coord(origin[1]); // y axis
write_coord(origin[2] + 385); // z axis
write_short(exploSpr); // sprite
write_byte(0); // start frame
write_byte(0); // framerate
write_byte(4); // life
write_byte(60); // width
write_byte(0); // noise
write_byte(0); // red
write_byte(0); // green//200
write_byte(255); // blue//200
write_byte(100); // brightness
write_byte(0); // speed
message_end();

// medium ring
message_begin(MSG_BROADCAST,SVC_TEMPENTITY);
write_byte(TE_BEAMCYLINDER);
write_coord(origin[0]); // x
write_coord(origin[1]); // y
write_coord(origin[2]); // z
write_coord(origin[0]); // x axis
write_coord(origin[1]); // y axis
write_coord(origin[2] + 470); // z axis
write_short(exploSpr); // sprite
write_byte(0); // start frame
write_byte(0); // framerate
write_byte(4); // life
write_byte(60); // width
write_byte(0); // noise
write_byte(0); // red
write_byte(0); // green
write_byte(255); // blue
write_byte(100); // brightness
write_byte(0); // speed
message_end();

// largest ring
message_begin(MSG_BROADCAST,SVC_TEMPENTITY);
write_byte(TE_BEAMCYLINDER);
write_coord(origin[0]); // x
write_coord(origin[1]); // y
write_coord(origin[2]); // z
write_coord(origin[0]); // x axis
write_coord(origin[1]); // y axis
write_coord(origin[2] + 555); // z axis
write_short(exploSpr); // sprite
write_byte(0); // start frame
write_byte(0); // framerate
write_byte(4); // life
write_byte(60); // width
write_byte(0); // noise
write_byte(0); // red
write_byte(0); // green
write_byte(255); // blue
write_byte(100); // brightness
write_byte(0); // speed
message_end();

// light effect
message_begin(MSG_BROADCAST,SVC_TEMPENTITY);
write_byte(TE_DLIGHT);
write_coord(origin[0]); // x
write_coord(origin[1]); // y
write_coord(origin[2]); // z
write_byte(floatround(get_pcvar_float(gcvarDistance)/5.0)); // radius
write_byte(0); // r
write_byte(0) // g
write_byte(255); // b
write_byte(8); // life
write_byte(60); // decay rate
message_end();
}
// give an entity a beam trail
set_beamfollow(ent,life,width,Float:rgb[3],brightness)
{
clear_beamfollow(ent);

message_begin(MSG_BROADCAST,SVC_TEMPENTITY);
write_byte(TE_BEAMFOLLOW);
write_short(ent); // entity
write_short(trailSpr); // sprite
write_byte(life); // life
write_byte(width); // width
write_byte(floatround(rgb[0])); // red
write_byte(floatround(rgb[1])); // green
write_byte(floatround(rgb[2])); // blue
write_byte(brightness); // brightness
message_end();
}

// removes beam trails from an entity
clear_beamfollow(ent)
{
message_begin(MSG_BROADCAST,SVC_TEMPENTITY);
write_byte(TE_KILLBEAM);
write_short(ent); // entity
message_end();
}
//CMD
public cmd_amx_give_sg(id, level, cid){
if(!cmd_access(id, level, cid, 2))
return PLUGIN_HANDLED;
new szTarget[32], iTarget;
read_argv(1, szTarget, 31);
iTarget=cmd_target(id,szTarget,0);
if(!is_user_alive(id))
return PLUGIN_HANDLED;
giveNade(iTarget, true);
return PLUGIN_HANDLED;
}
public buyFreezeNade(id){
     if(!is_user_alive(id))
     return PLUGIN_CONTINUE;
     if(get_pcvar_num(gcvarDistribute) < 2)
         return PLUGIN_CONTINUE;
     giveNade(id);
     return PLUGIN_CONTINUE;
}
public taskGiveNade(id){
     giveNade(id);
}
giveNade(id, bool:bCmd=false){
     if(!is_user_alive(id) || get_user_team(id)!=2)
         return 0;
     if(giGrenades[id] >= get_pcvar_num(gcvarLimit) && !bCmd){
         client_print(id, print_center, "Wyczerpales limit");
         return 0;
     }
     new iMoney=cs_get_user_money(id) - get_pcvar_num(gcvarCost);
     new bool:pay=(get_pcvar_num(gcvarDistribute) > 1)
     if(pay && (iMoney < 0) && !bCmd){
         client_print(id, print_center, "#Cstrike_TitlesTXT_Not_Enough_Money");
         return 0;
     }
     if(!user_has_weapon(id, CSW_SMOKEGRENADE)){
         give_item(id, "weapon_smokegrenade");
     }
     else{
         new iAmmo = cs_get_user_bpammo(id, CSW_SMOKEGRENADE);
         if(iAmmo < get_pcvar_num(gcvarCarry) || bCmd){
             cs_set_user_bpammo(id, CSW_SMOKEGRENADE,  iAmmo+1);
             message_begin(MSG_ONE, gmsgAmmoPickup, _, id);
             write_byte(13);
             write_byte(1);
             message_end();
             engfunc(EngFunc_EmitSound,id,CHAN_ITEM,"items/gunpickup2.wav",VOL_NORM,ATTN_NORM,0,PITCH_NORM);
         }
         else{
             client_print(id, print_center, "#Cstrike_TitlesTXT_Cannot_Carry_Anymore");
             return 0;
         }
     }
     if(!bCmd && pay)
         cs_set_user_money(id, iMoney);
     giGrenades[id]++;
     return 1;
}