26.01.2011, 17:50
Hi everyone, this is another tutorial by me 
I'm gonna explain (little tutorial) how to find bugs / non-working scripts.
Did you ever had this? You had no warnings/errors while compiling, but when playing, it isn't working. This ain't nice at all. It's just easy to find: DEBUG IT
Before you're gonna ask, what is 'debug'? It ain't 'debug' of course XD - It's 'debugging'. With debugging, you can find bugs... That's why I made this tutorial. It's actually "How to debug". Follow these 2 steps.
Step 1: Go after what isn't working
The step title says it. If you made a lock pick system, for example, and it isn't working / not working properly, find in the gamemode/filterscript the part that isn't working! If you need to press "LOOK_BEHIND" for that script, search for "KEY_LOOK_BEHIND" or "512". ( KEY_LOOK_BEHIND = key 512 ). There you can find the script you're gonna need probably
Step 2: Add debugging messages
After finding the code, there are 2 options:
1) Add console prints / client messages
2) Check callbacks.
With 2, I mean that the problem can be in a callback! When made a command for example, which shows the player every 5 seconds a message, it can't be in the command! Check the callback (in a timer) too.
With 1, you only have to add a "print();" or SendClientMessage
I've made an vehicle pick locker. It didn't unlock the vehicle! (Example back
)
So that's why I'm looking in the script. I'd search for "512". This is my result:
I don't see any thing that unlocks the vehicle. So all I have to do is add it here, or look in the callback "HackVehicle", 'cuz that one is included as a timer.
This is the callback
Hmm. I can't see what's wrong yet. Let's add a ClientMessage in all the statements (idk how to call.... all the codes within the brackets). So one will look like this:
That's the ClientMessage - After checking ingame, I saw something like this:
So the callback did just work! Maybe I forgot something? Yeah I did!
No code that unlocks the vehicle! Bug found! All you have to do is solve it.
I hope that this tutorial helped you a bit.
- Kevin
I'm gonna explain (little tutorial) how to find bugs / non-working scripts.
Did you ever had this? You had no warnings/errors while compiling, but when playing, it isn't working. This ain't nice at all. It's just easy to find: DEBUG IT
Before you're gonna ask, what is 'debug'? It ain't 'debug' of course XD - It's 'debugging'. With debugging, you can find bugs... That's why I made this tutorial. It's actually "How to debug". Follow these 2 steps.
Step 1: Go after what isn't working
The step title says it. If you made a lock pick system, for example, and it isn't working / not working properly, find in the gamemode/filterscript the part that isn't working! If you need to press "LOOK_BEHIND" for that script, search for "KEY_LOOK_BEHIND" or "512". ( KEY_LOOK_BEHIND = key 512 ). There you can find the script you're gonna need probably
Step 2: Add debugging messages
After finding the code, there are 2 options:
1) Add console prints / client messages
2) Check callbacks.
With 2, I mean that the problem can be in a callback! When made a command for example, which shows the player every 5 seconds a message, it can't be in the command! Check the callback (in a timer) too.
With 1, you only have to add a "print();" or SendClientMessage
I've made an vehicle pick locker. It didn't unlock the vehicle! (Example back
)So that's why I'm looking in the script. I'd search for "512". This is my result:
pawn Код:
if(newkeys & 512){
if(IsPlayerInRangeOfAnyVehicle(playerid, 3)){
if(IsPlayerInAnyVehicle(playerid)) return 0;
if(PlayerAction[playerid][pHackVec] > 0) return 0;
if(PlayerItems[playerid][pWires] <= 0) return SendClientMessage(playerid, COLOR_RED, "You don't have any wires to pick locks!");
new Float:X, Float:Y, Float:Z;
loop:MAX_VEHICLES(v){
if(IsVehicleStreamedIn(v, playerid)){
GetVehiclePos(v, X, Y, Z);
if(IsPlayerInRangeOfPoint(playerid, 3, X, Y, Z)){
PlayerHackVec[playerid] = SetTimerEx("HackVehicle", 1100, true, "ii", playerid, v);
SendClientMessage(playerid, COLOR_GREEN, "* Pick locking...");
break;
}
else continue;
}
else continue;
}
return 1;
}
This is the callback
pawn Код:
new engine, lights, alarm, doors, bonnet, boot, objective;
PlayerAction[playerid][pHackVec]++;
if(PlayerAction[playerid][pHackVec] == 1){
TextDrawSetString(HackVec[playerid], "|");
TextDrawShowForPlayer(playerid, HackVec[playerid]);
}
if(PlayerAction[playerid][pHackVec] == 2){
TextDrawSetString(HackVec[playerid], "| |");
TextDrawShowForPlayer(playerid, HackVec[playerid]);
}
if(PlayerAction[playerid][pHackVec] == 3){
TextDrawSetString(HackVec[playerid], "| | |");
TextDrawShowForPlayer(playerid, HackVec[playerid]);
}
if(PlayerAction[playerid][pHackVec] == 4){
TextDrawSetString(HackVec[playerid], "| | | |");
TextDrawShowForPlayer(playerid, HackVec[playerid]);
}
if(PlayerAction[playerid][pHackVec] == 5){
TextDrawSetString(HackVec[playerid], "| | | | |");
TextDrawShowForPlayer(playerid, HackVec[playerid]);
}
if(PlayerAction[playerid][pHackVec] > 5){
TextDrawHideForPlayer(playerid, HackVec[playerid]);
SendClientMessage(playerid, COLOR_GREEN, "* Vehicle hacked. You can now enter it");
PlayerAction[playerid][pHackVec] = 0;
KillTimer(PlayerHackVec[playerid]);
PlayerHackVec[playerid] = (-1);
}
pawn Код:
if(PlayerAction[playerid][pHackVec] == 5){
TextDrawSetString(HackVec[playerid], "| | | | |");
TextDrawShowForPlayer(playerid, HackVec[playerid]);
SendClientMessage(playerid, COLOR_WHITE, "[DEBUG] HackVehicle(playerid, vehicleid) - pHackVec == 5");
}
- After checking ingame, I saw something like this:Код:
[DEBUG] HackVehicle(playerid, vehicleid) - pHackVec == 1 [DEBUG] HackVehicle(playerid, vehicleid) - pHackVec == 2 [DEBUG] HackVehicle(playerid, vehicleid) - pHackVec == 3 [DEBUG] HackVehicle(playerid, vehicleid) - pHackVec == 4 [DEBUG] HackVehicle(playerid, vehicleid) - pHackVec == 5 [DEBUG] HackVehicle(playerid, vehicleid) - pHackVec == COMPLETE
pawn Код:
if(PlayerAction[playerid][pHackVec] > 5){
TextDrawHideForPlayer(playerid, HackVec[playerid]);
SendClientMessage(playerid, COLOR_GREEN, "* Vehicle hacked. You can now enter it");
PlayerAction[playerid][pHackVec] = 0;
KillTimer(PlayerHackVec[playerid]);
PlayerHackVec[playerid] = (-1);
}
I hope that this tutorial helped you a bit.
- Kevin
