Velocity Tutorial

From SA-MP Wiki

Jump to: navigation, search

How to use Velocity Functions

Velocity Tutorial was added in SA-MP 0.3a This function was added in SA-MP 0.3a and will not work in earlier versions!


Creating a script to Jump 10ft in a car or drive at the speed of light without hacks is easy with SetPlayerVelocity(); and OnPlayerKeyStateChange()

First, let's start off by adding the Defines and a timer.

#include <a_samp>
 
#define PRESSED(%0) \
	(((newkeys & (%0)) == (%0)) && ((oldkeys & (%0)) != (%0)))
 
new Tick[MAX_PLAYERS];
 
public OnPlayerUpdate(playerid)
{
	Tick[playerid]++;
	if(Tick[playerid] != 3) return 1;
	Tick[playerid] = 0;
 	new Keys,up,down;
       	GetPlayerKeys(playerid,Keys,up,down);
	new Float:x,Float:y,Float:z;
	if(Keys &= 1024)
	{
   		if(GetPlayerState(playerid) == PLAYER_STATE_ONFOOT)
		{
 
			GetPlayerVelocity(playerid,x,y,z);
			SetPlayerVelocity(playerid,x*1.2,y*1.2,z*1.2);
		}
	}
 	else if(Keys &= 4)
      	{
        	if(GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
		{
			GetVehicleVelocity(GetPlayerVehicleID(playerid),x,y,z);
			SetVehicleVelocity(GetPlayerVehicleID(playerid),x*1.2,y*1.2,z*1.2);
		}
	}
	return 1;
}


This next part will show you how you can use another key to make your car jump 10ft in the air.

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
	if (PRESSED(KEY_HANDBRAKE)) // Change KEY_HANDBRAKE to your choice of PlayerKeys
	{
        new Float:x, Float:y, Float:z;
	GetVehicleVelocity(GetPlayerVehicleID(playerid), x, y, z);
	SetVehicleVelocity(GetPlayerVehicleID(playerid) ,x ,y ,z+0.3);
	}
	return 1;
}

With that all added all you need to do is hold down Left Alt while in a car to use the Speedboost, players can use this on foot but cannot be touching the ground while doing so. Press you Handbrake key(mostlikely Spacebar) to jump in your car.

Personal tools
Navigation
Toolbox
In other languages