[Metamod] Semiclip 2.2

#include <amxmodx>
#include <fun>
#include <fakemeta>

new stuck[33]

new cvar[3]

new const Float:size[][3] = {
	{0.0, 0.0, 1.0}, {0.0, 0.0, -1.0}, {0.0, 1.0, 0.0}, {0.0, -1.0, 0.0}, {1.0, 0.0, 0.0}, {-1.0, 0.0, 0.0}, {-1.0, 1.0, 1.0}, {1.0, 1.0, 1.0}, {1.0, -1.0, 1.0}, {1.0, 1.0, -1.0}, {-1.0, -1.0, 1.0}, {1.0, -1.0, -1.0}, {-1.0, 1.0, -1.0}, {-1.0, -1.0, -1.0},
	{0.0, 0.0, 2.0}, {0.0, 0.0, -2.0}, {0.0, 2.0, 0.0}, {0.0, -2.0, 0.0}, {2.0, 0.0, 0.0}, {-2.0, 0.0, 0.0}, {-2.0, 2.0, 2.0}, {2.0, 2.0, 2.0}, {2.0, -2.0, 2.0}, {2.0, 2.0, -2.0}, {-2.0, -2.0, 2.0}, {2.0, -2.0, -2.0}, {-2.0, 2.0, -2.0}, {-2.0, -2.0, -2.0},
	{0.0, 0.0, 3.0}, {0.0, 0.0, -3.0}, {0.0, 3.0, 0.0}, {0.0, -3.0, 0.0}, {3.0, 0.0, 0.0}, {-3.0, 0.0, 0.0}, {-3.0, 3.0, 3.0}, {3.0, 3.0, 3.0}, {3.0, -3.0, 3.0}, {3.0, 3.0, -3.0}, {-3.0, -3.0, 3.0}, {3.0, -3.0, -3.0}, {-3.0, 3.0, -3.0}, {-3.0, -3.0, -3.0},
	{0.0, 0.0, 4.0}, {0.0, 0.0, -4.0}, {0.0, 4.0, 0.0}, {0.0, -4.0, 0.0}, {4.0, 0.0, 0.0}, {-4.0, 0.0, 0.0}, {-4.0, 4.0, 4.0}, {4.0, 4.0, 4.0}, {4.0, -4.0, 4.0}, {4.0, 4.0, -4.0}, {-4.0, -4.0, 4.0}, {4.0, -4.0, -4.0}, {-4.0, 4.0, -4.0}, {-4.0, -4.0, -4.0},
	{0.0, 0.0, 5.0}, {0.0, 0.0, -5.0}, {0.0, 5.0, 0.0}, {0.0, -5.0, 0.0}, {5.0, 0.0, 0.0}, {-5.0, 0.0, 0.0}, {-5.0, 5.0, 5.0}, {5.0, 5.0, 5.0}, {5.0, -5.0, 5.0}, {5.0, 5.0, -5.0}, {-5.0, -5.0, 5.0}, {5.0, -5.0, -5.0}, {-5.0, 5.0, -5.0}, {-5.0, -5.0, -5.0}
}

public plugin_init() {
	register_plugin("Automatic Unstuck","1.5","NL)Ramon(NL")
	cvar[0] = register_cvar("amx_autounstuck","1")
	cvar[1] = register_cvar("amx_autounstuckeffects","0")
	cvar[2] = register_cvar("amx_autounstuckwait","10")
	set_task(0.1,"checkstuck",0,"",0,"b")
}

public checkstuck() {
	if(get_pcvar_num(cvar[0]) >= 1) {
		static players[32], pnum, player
		get_players(players, pnum)
		static Float:origin[3]
		static Float:mins[3], hull
		static Float:vec[3]
		static o,i
		for(i=0; i<pnum; i++){
			player = players[i]
			if (is_user_connected(player) && is_user_alive(player)) {
				pev(player, pev_origin, origin)
				hull = pev(player, pev_flags) & FL_DUCKING ? HULL_HEAD : HULL_HUMAN
				if (!is_hull_vacant(origin, hull,player) && !get_user_noclip(player) && !(pev(player,pev_solid) & SOLID_NOT)) {
					++stuck[player]
					if(stuck[player] >= get_pcvar_num(cvar[2])) {
						pev(player, pev_mins, mins)
						vec[2] = origin[2]
						for (o=0; o < sizeof size; ++o) {
							vec[0] = origin[0] - mins[0] * size[o][0]
							vec[1] = origin[1] - mins[1] * size[o][1]
							vec[2] = origin[2] - mins[2] * size[o][2]
							if (is_hull_vacant(vec, hull,player)) {
								engfunc(EngFunc_SetOrigin, player, vec)
								effects(player)
								set_pev(player,pev_velocity,{0.0,0.0,0.0})
								o = sizeof size
							}
						}
					}
				}
				else
				{
					stuck[player] = 0
				}
			}
		}
	}
}

stock bool:is_hull_vacant(const Float:origin[3], hull,id) {
	static tr
	engfunc(EngFunc_TraceHull, origin, origin, 0, hull, id, tr)
	if (!get_tr2(tr, TR_StartSolid) || !get_tr2(tr, TR_AllSolid)) //get_tr2(tr, TR_InOpen))
		return true
	
	return false
}

public effects(id) {
	if(get_pcvar_num(cvar[1])) {
		message_begin(MSG_ONE_UNRELIABLE,105,{0,0,0},id )      
		write_short(1<<10)   // fade lasts this long duration
		write_short(1<<10)   // fade lasts this long hold time
		write_short(1<<1)   // fade type (in / out)
		write_byte(20)            // fade red
		write_byte(255)    // fade green
		write_byte(255)        // fade blue
		write_byte(255)    // fade alpha
		message_end()
		client_cmd(id,"spk fvox/blip.wav")
	}
}