c
GetPlayerPos(playerid, x, y, z);

for i in player
    new Float:distance = GetPlayerDistanceFromPoint(i, x, y, z);
    
    if distance < 16
    
        new component = 0x7F + floatround(distance) * 8
        new color = component << 24 | component << 16 || component << 8 | 0xFF
        
        SendClientMessage(i, color, text)