介绍：

• 此代码片段适用于Left 4 Dead2或者Left 4 Dead
• 生成了一个具有物理效果（可以被打中后运动）的实体Entity

#include <sourcemod>
#include <sdkhooks>
#include <sdktools>

#define MODEL_PIPE    "models/w_models/weapons/w_eq_pipebomb.mdl"

bool g_bLeft4Dead2;

public APLRes AskPluginLoad2(Handle myself, bool late, char[] error, int err_max)
{
    EngineVersion test = GetEngineVersion();
    if( test == Engine_Left4Dead ) g_bLeft4Dead2 = false;
    else if( test == Engine_Left4Dead2 ) g_bLeft4Dead2 = true;
    else
    {
        strcopy(error, err_max, "Plugin only supports Left 4 Dead 1 & 2.");
        return APLRes_SilentFailure;
    }
    return APLRes_Success;
}

public void OnPluginStart()
{
    RegAdminCmd("sm_pipe", CmdPipe, ADMFLAG_ROOT);
}

public void OnMapStart()
{
    PrecacheModel(MODEL_PIPE);
}

Action CmdPipe(int client, int args)
{
    float vPos[3], vAng[3];
    if( SetTeleportEndPoint(client, vPos) )
    {
        int entity = CreateEntityByName("weapon_pipe_bomb");

        vAng[0] = 90.0;
        vPos[2] += 10;
        TeleportEntity(entity, vPos, NULL_VECTOR, NULL_VECTOR);
        DispatchSpawn(entity);

        // Block +USE
        SDKHook(entity, SDKHook_Use, OnUse);

        // Remove glow
        if( g_bLeft4Dead2 )
        {
            SetEntProp(entity, Prop_Send, "m_iGlowType", 3);
            SetEntProp(entity, Prop_Send, "m_glowColorOverride", 1);
            SetEntProp(entity, Prop_Send, "m_nGlowRange", 0);
        }
    }

    return Plugin_Handled;
}

Action OnUse(int entity)
{
    return Plugin_Handled;
}

bool SetTeleportEndPoint(int client, float vPos[3])
{
    GetClientEyePosition(client, vPos);
    float vAng[3];
    GetClientEyeAngles(client, vAng);

    Handle trace = TR_TraceRayFilterEx(vPos, vAng, MASK_SHOT, RayType_Infinite, ExcludeSelf_Filter, client);

    if( TR_DidHit(trace) )
    {
        TR_GetEndPosition(vPos, trace);
    }
    else
    {
        delete trace;
        return false;
    }

    delete trace;
    return true;
}

bool ExcludeSelf_Filter(int entity, int contentsMask, any client)
{
    if( entity == client )
        return false;
    return true;
} 

参考：

• AlliedModders - View Single Post - [Solved] Spawn prop_physics (alliedmods.net)