#pragma semicolon 1
#pragma newdecls required

#include <sourcemod>
#include <sdktools>

#define TEAM_INFECTED                3

#define MODEL_CONCRETE_CHUNK         "models/props_debris/concrete_chunk01a.mdl"
#define MODEL_TREE_TRUNK             "models/props_foliage/tree_trunk.mdl"
#define MODEL_ROCK          "models/props_wasteland/rock_moss02.mdl"
#define MODEL_LOCK "models/props_wasteland/rockcliff_cluster03a_river.mdl" //1
#define MODEL_DPAW "models/props_foliage/cedar_medium01.mdl"//2

#define TYPE_CONCRETE_CHUNK          (1 << 0)
#define TYPE_TREE_TRUNK              (1 << 1)

public void OnMapStart()
{
    PrecacheModel(MODEL_CONCRETE_CHUNK, true);
    PrecacheModel(MODEL_TREE_TRUNK, true);
}

public void OnEntityCreated(int entity, const char[] classname)
{
    if (StrEqual(classname, "tank_rock", false))
        RequestFrame(OnTankRockNextFrame, EntIndexToEntRef(entity));
}

void OnTankRockNextFrame(int iEntRef)
{

    if (!IsValidEntRef(iEntRef))
        return;

    int entity = EntRefToEntIndex(iEntRef);

    int client = GetEntPropEnt(entity, Prop_Send, "m_hOwnerEntity");

    if (!IsValidClient(client))
        return;

    if (!IsPlayerAlive(client))
        return;

    if (GetClientTeam(client) != TEAM_INFECTED)
        return;

    if (IsPlayerGhost(client))
        return;


    switch (GetRandomInt(1, 5))
    {
        case 1: SetEntityModel(entity, MODEL_CONCRETE_CHUNK);
        case 2: SetEntityModel(entity, MODEL_TREE_TRUNK);
        case 3: SetEntityModel(entity, MODEL_ROCK);
        case 4: SetEntityModel(entity, MODEL_LOCK);
        case 5: SetEntityModel(entity, MODEL_DPAW);
    }
}


bool IsValidClient(int client)
{
    return (1 <= client <= MaxClients && IsClientInGame(client));
}

bool IsPlayerGhost(int client)
{
    return GetEntProp(client, Prop_Send, "m_isGhost", 1) == 1;
}

bool IsValidEntRef(int iEntRef)
{
    return iEntRef != 0 && EntRefToEntIndex(iEntRef) != INVALID_ENT_REFERENCE;
}