[runonce]

Let's say you want to active it with right-click instead of a console command. Any tips for that?

Thanks!

[=MaTi=]

This should work, as long as you have the alternative fire bound to mouse2 button, which is like that by default:

PHP Code:

public Action:OnPlayerRunCmd(client, &buttons, &impulse, Float:vel[3], Float:angles[3], &weapon)
{
    if(buttons & IN_ATTACK2)
    {
        //spawn your stuff
    }
    return Plugin_Continue;
} 


EDIT:
I made a mistake in calculating the Z position on the previous page. It's corrected now. Sorry!

[runonce]

Thank you, that worked well! But for some reason is spawning multiple barrels at once. I'll try to figure out why that later.

public Action:OnPlayerRunCmd(client, &buttons, &impulse, Float:vel[3], Float:angles[3], &weapon)
{
    if(buttons & IN_ATTACK2)
    {
	    new Float:location[3];
	    GetClientEyePosition(client, location);
	    new Float:ang[3];
	    GetClientEyeAngles(client, ang);
	    new Float:location2[3];
	    location2[0] = (location[0]+(100*((Cosine(DegToRad(ang[1]))) * (Cosine(DegToRad(ang[0]))))));
	    location2[1] = (location[1]+(100*((Sine(DegToRad(ang[1]))) * (Cosine(DegToRad(ang[0]))))));
	    ang[0] -= (2*ang[0]);
	    location2[2] = (location[2]+(100*(Sine(DegToRad(ang[0])))));
	    PrintToChat(client,"Location1: %f, %f, %f", location[0], location[1], location[2]);
	    PrintToChat(client,"Location2: %f, %f, %f", location2[0], location2[1], location2[2]);
	    PrintToChat(client,"Angles: %f, %f, %f", ang[0], ang[1], ang[2]); 
	    new EntitySpawnIndex = CreateEntityByName("prop_physics");
	    SetEntityModel(EntitySpawnIndex,"models/props_c17/oildrum001_explosive.mdl");
	    DispatchSpawn(EntitySpawnIndex);
	    SetEntityMoveType(EntitySpawnIndex, MOVETYPE_VPHYSICS);
	    SetEntProp(EntitySpawnIndex, Prop_Data, "m_CollisionGroup", 5);
	    SetEntProp(EntitySpawnIndex, Prop_Data, "m_nSolidType", 6);
	    TeleportEntity(EntitySpawnIndex, location2, NULL_VECTOR, NULL_VECTOR);
    }
    return Plugin_Continue;
}