[me-borno]

Hey,

I was doing some research on Game development. and I found a few things that could be usefull for samp.

Here's a quick one, its the dot product.
that means, it checks if a player is in someone else's field of view.
The default FoV(Field of View) is around 140, but you can change it while using it

Код:

stock InFieldOfView(playerid, from, const radius = 140, const range = -1)
{
	new result;
	new Float:x1, Float:y1, Float:z1, Float:a;
    new Float:x2, Float:y2, Float:z2;
    new Float:D1, Float:D2, Float:V1, Float:V2;
    
	GetPlayerPos(from, x1, y1, z1);
	GetPlayerPos(playerid, x2, y2, z2);
	GetPlayerFacingAngle(from, a);

	D1 = x1/sqrt(x1^2+y1^2);
	D2 = y1/sqrt(x1^2+y1^2);
	
    V1 = x2/sqrt(x2^2+y2^2);
	V2 = y2/sqrt(x2^2+y2^2);

	if(sqrt((x2-x1)^2+(y2-y1)^2) <= range && range != -1)
	{
		result = acos(D1*V1 + D2*V2);
		if(result <= radius) return 0;
	}
	return 1;
}

Its untested, but i think my math is fairly good :P

Usage:

Код:

if(InFieldOfView(playerid, npc))
{
//ATTACK NPC!! ATTACK!!
}

Good luck!