[IPrototypeI]

Код:

stock Check_If_Point_In_Triangle(playerid,Float:X,Float:Y,Float:Z,Float:R,Float:MAX_Z)
{
    new const Float:Winkel = 60.0,Float:Weite = 30.0;
	new Float:Pos[8];
	GetPlayerPos(playerid,Pos[0],Pos[1],Pos[2]);
	Pos[4] = Y+(Weite*floatsin(Winkel+R,degrees));
	Pos[5] = Y-(Weite*floatsin(R-Winkel,degrees));
	Pos[6] = X+(Weite*floatcos(Winkel+R,degrees));
	Pos[7] = X-(Weite*floatcos(R-Winkel,degrees));
    return (((Y-Pos[4])*(Pos[0]-X) + (Pos[6]-X)*(Pos[1]-Y)) <0 ||((Pos[4]-Pos[5])*(Pos[0]-Pos[6]) + (Pos[7]-Pos[6])*(Pos[1]-Pos[4])) <0 ||((Pos[5]-Y)*(Pos[0]-Pos[7]) + (X-Pos[7])*(Pos[1]-Pos[5])) <0 || Pos[2] > MAX_Z || Pos[2] < Z) ? 0:1;
}

With this code you can check if someone in a triangle area.

It`s maybe good for a blitzersystem

A littel picture