#include <amxmodx>
#include <fakemeta>
#include <zombieplague.inc>

/*================================================================================
  [Plugin Customization]
=================================================================================*/

new const g_item_name[] = { "Мульти прыжок" };
const g_item_cost = 15;
new g_maxJumps = 0; // maximum amount of jumps in mid air. If set to 0 then it is infinitely

/*============================================================================*/

new jumpnum[33] = 0;
new bool:dojump[33] = false;
new g_itemid_multijump;
new g_multijumps[33] = 0;

public plugin_init()
{
  register_plugin("[ZP] Extra Item: Multijump", "1.0", "pharse");
   
  g_itemid_multijump = zp_register_extra_item(g_item_name, g_item_cost, ZP_TEAM_HUMAN);
   
  register_forward(FM_PlayerPreThink, "FW_PlayerPreThink");
  register_forward(FM_PlayerPostThink, "FW_PlayerPostThink");
   
  register_event("HLTV", "EVENT_round_start", "a", "1=0", "2=0");
}

public FW_PlayerPreThink(id)
{
  if(!is_user_alive(id) || zp_get_user_zombie(id) || !g_multijumps[id]) return PLUGIN_CONTINUE
  new nbut = pev(id,pev_button);
  new obut = pev(id,pev_oldbuttons);
  if((nbut & IN_JUMP) && !(pev(id,pev_flags) & FL_ONGROUND) && !(obut & IN_JUMP))
  {
   if(jumpnum[id] < g_multijumps[id])
   {
    dojump[id] = true;
    jumpnum[id]++;
    return PLUGIN_CONTINUE
   }
  }
  if((nbut & IN_JUMP) && (pev(id,pev_flags) & FL_ONGROUND))
  {
   jumpnum[id] = 0;
   return PLUGIN_CONTINUE
  }
  return PLUGIN_CONTINUE
}

public FW_PlayerPostThink(id)
{
  if(!is_user_alive(id) || zp_get_user_zombie(id) || !g_multijumps[id]) return PLUGIN_CONTINUE
  if(dojump[id] == true)
  {
   new Float:velocity[3];
   pev(id,pev_velocity,velocity);
   velocity[2] = random_float(265.0,285.0);
   set_pev(id,pev_velocity,velocity)
   dojump[id] = false
   return PLUGIN_CONTINUE
  }
  return PLUGIN_CONTINUE
}  

// Player buys our upgrade, add one multijump
public zp_extra_item_selected(player, itemid)
{
  if (itemid == g_itemid_multijump){
   if (g_multijumps[player] < g_maxJumps || !g_maxJumps){
    g_multijumps[player]++;
    if (g_maxJumps)
     client_print(player, print_center, "Now you can jump %d / %d times in mid air.", g_multijumps[player], g_maxJumps);
    else
     client_print(player, print_center, "Now you can jump %d times in mid air.", g_multijumps[player]);
   }
   else
    client_print(player, print_center, "You can't jump more than %d times in mid air!", g_maxJumps);
  }
}

// Reset multijump for all players on newround
public EVENT_round_start()
{
  for (new id; id <= 32; id++) g_multijumps[id] = false;
}