#include <sdktools>
#include <sdkhooks>

#define TRACE_START     1.0
#define TRACE_LENGTH    80.0
#define LASER_COLOR_D   "38 251 42"
#define LASER_WIDTH     0.6

#define MODEL_MINE      "models/w_models/weapons/w_eq_pipebomb.mdl"
#define MODEL_BEAM      "materials/sprites/laserbeam.vmt"

public OnPluginStart()
{
    HookEvent("grenade_bounce", EventGrenadeB);
}

public OnMapStart()
{
    PrecacheModel("materials/sprites/laserbeam.vmt");
}

public EventGrenadeB(Event event, const char[] name, bool dontBroadcast)
{
    new client = GetClientOfUserId(event.GetInt("userid"));
    new grenade = GetGrenade(client);

    PlaceMine(client);
    AcceptEntityInput(grenade, "Kill" );
}


GetGrenade(iClient)
{
    decl String:sClass[32] = {"pipe_bomb_projectile"};
    for(new i = 0, iGrenade = -1; i < sizeof(sClass); i++)
    {
        while((iGrenade = FindEntityByClassname(iGrenade, sClass[i])) != -1)
        {
            if(GetEntPropEnt(iGrenade, Prop_Send, "m_hThrower") == iClient)
            return iGrenade;
        }
    }
    return 0;
}

public PlaceMine(client)
{
    new grenade_main = GetGrenade(client);

    decl Float:trace_start[3], Float:trace_angle[3], Float:trace_end[3], Float:trace_normal[3];
    GetClientEyeAngles( client, trace_angle );
    GetAngleVectors( trace_angle, trace_end, NULL_VECTOR, NULL_VECTOR );
    NormalizeVector( trace_end, trace_end );
    GetEntPropVector(grenade_main, Prop_Send, "m_vecOrigin", trace_start);
    // offset start by near point
    for( new i = 0; i < 3; i++ )
        trace_start[i] += trace_end[i] * TRACE_START;

    for( new i = 0; i < 3; i++ )
        trace_end[i] = trace_start[i] + trace_end[i] * TRACE_LENGTH;

    TR_TraceRayFilter( trace_start, trace_end, CONTENTS_SOLID|CONTENTS_WINDOW, RayType_EndPoint, TraceFilter_All, 0 );

    if( TR_DidHit( INVALID_HANDLE ) )
    {

        TR_GetEndPosition( trace_end, INVALID_HANDLE );
        TR_GetPlaneNormal(INVALID_HANDLE, trace_normal);
    }
    new Float:position[3];
    TR_TraceRayFilter(position, trace_angle, CONTENTS_SOLID, RayType_Infinite, TraceFilter_All, 0);
    CreateLaser(trace_start, trace_end)

}

public CreateLaser(Float:start[3], Float:end[3])
{
    new ent = CreateEntityByName("env_beam");
    if (ent != -1)
    {
        decl String:color[16];

        color = LASER_COLOR_D;

        TeleportEntity(ent, start, NULL_VECTOR, NULL_VECTOR);
        SetEntityModel(ent, MODEL_BEAM);
        SetEntPropVector(ent, Prop_Data, "m_vecEndPos", end);
        DispatchKeyValue(ent, "rendercolor", color );
        DispatchKeyValue(ent, "renderamt", "80");
        DispatchKeyValue(ent, "decalname", "Bigshot");
        DispatchKeyValue(ent, "life", "0");
        DispatchKeyValue(ent, "TouchType", "0");
        DispatchSpawn(ent);
        SetEntPropFloat(ent, Prop_Data, "m_fWidth", LASER_WIDTH);
        SetEntPropFloat(ent, Prop_Data, "m_fEndWidth", LASER_WIDTH);
        ActivateEntity(ent);
        AcceptEntityInput(ent, "TurnOn");
    }

    return ent;
}

public bool:TraceFilter_All( entity, contentsMask )
{
    return false;
}