[Math] Angle and more - Printable Version
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+--- Thread: [Math] Angle and more (/showthread.php?tid=625698)
[Math] Angle and more - Dayrion - 05.01.2017
Hello.
I'm probably too stupid to know how can I calculate a coordinates with the player's facing angle.
I mean, I wante to create 3-4 objects and elevate it every update. I'll use a loop and get the right coordinates. The problem is I don't know where I can modify it for the player's facing angle. (My english suck so much, sorry).
PHP код:
z += size * floatcos(i, degrees);
Re: [Math] Angle and more - SickAttack - 05.01.2017
http://forum.sa-mp.com/showpost.php?...35&postcount=3
Z would just have to be set +n.n.
Re: [Math] Angle and more - Dayrion - 05.01.2017
Quote:
|
Originally Posted by SickAttack
 |
Re: [Math] Angle and more - SickAttack - 05.01.2017
That function already gives you the position in front of the player according to the player's angle and the specified distance from the player's position. All you need to do is increase the z axis.
Re: [Math] Angle and more - Lordzy - 05.01.2017
The "offset" variable from this code seems to be pointless because the "a" variable gets assigned to the angle of player or vehicle.
NOTE : This function is simply named "GetPosInfrontOfPlayer". It creates a slanting line with "fDistance" separation in 3D.
pawn Код:
stock GetPosInfrontOfPlayer(playerid, Float:fDistance, &Float:fX, &Float:fY, &Float:fZ) {
new
Float:fAngle;
if(fX == 0.0 && fY == 0.0 && fZ == 0.0) //IF they're at origin, player pos is taken. Otherwise, it will just modify it's position to the position infront.
GetPlayerPos(playerid, fX, fY, fZ);
if(IsPlayerInAnyVehicle(playerid))
GetVehicleZAngle(GetPlayerVehicleID(playerid), fAngle);
else
GetPlayerFacingAngle(playerid, fAngle);
fX += fDistance * floatsin(-fAngle, degrees);
fY += fDistance * floatcos(-fAngle, degrees);
fZ += fDistance;
return 1;
}
//test command.
public OnPlayerCommandText(playerid, cmdtext[]) {
if(!strcmp(cmdtext, "/placeobjects", true)) {
new
Float:fX,
Float:fY,
Float:fZ
;
//To be used with this function, they must be 0.0 at first. Since they're
//already 0.0, I do not have to do:
//fX = fY = fZ = 0.0;
for(new i = 0; i< 5; i++) {
GetPosInfrontOfPlayer(playerid, 1.0, fX, fY, fZ);
CreateObject(2114, fX, fY, fZ, 0.0, 0.0, 0.0, 200.0);
}
return 1;
}
return 0;
}
Re: [Math] Angle and more - Dayrion - 05.01.2017
I'm not trying to get one pos, but in a loop.
PHP код:
for(new i; i <= 360; i++)
{
z = z+size*floatcos(i,degrees); //+ floatcos(-ang,degrees);
y = y+size*floatsin(i,degrees); //+ floatsin(-ang,degrees);
Re: [Math] Angle and more - Lordzy - 05.01.2017
The function I wrote can be used in loop, which is why it checks if fX == fY == fZ == 0.0. Test the example for yourself. You mentioned on your first post that you want to elevate 3-4 objects. Well, are you talking about doing something like this? (It's what the command I gave you does):
Click for picture - it's quite large.
Re: [Math] Angle and more - Dayrion - 05.01.2017
I'm trying to make a circle. x)
This working good except, the circle is oriented to a fixed angle (north on your minimap).
Re: [Math] Angle and more - Lordzy - 05.01.2017
https://sampforum.blast.hk/showthread.php?tid=38965&page=425
Re: [Math] Angle and more - jamesbond007 - 05.01.2017
Why are u naming ur variable Z? it should be X and Y ? isnt it? for X just add distance*floatsin (-angle, degrees);
for y add distance*floatcos(-angle,degrees)
thats it. its that simple