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createentity command: Actually have p1/p2/p3/p4 defaults

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Since createentity() started accepting p1/p2/p3/p4 arguments, it now
unconditionally passes in whatever arguments were present there
previously, when there weren't any before.

This can lead to unexpected behavior when selectively using and then
omitting p1/p2/p3/p4 arguments.

Also, plenty of existing levels already only use the 5-argument version
of createentity(). And createcrewman() can take up to 6 arguments at
once. It's not far-fetched that an existing level could createentity()
right after doing a 6-argument createcrewman(), which would lead to a
different behavior than in 2.2 and previous.

So instead, instead of checking if `words[index]` is an empty string (it
only sets the string to be empty if there are enough argument separators
on the line), ACTUALLY check if it's empty. I've added a static array
(no need for it to be exported) that keeps track of this. createentity()
now checks for that instead of `words`.
This commit is contained in:
Misa 2021-08-11 19:32:36 -07:00 committed by Ethan Lee
parent 87ec35eb45
commit 63a487d20d
2 changed files with 17 additions and 7 deletions
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20
desktop_version/src/Script.cpp
View file

@ -38,6 +38,8 @@ void scriptclass::clearcustom(void)
customscripts.clear();
}
static bool argexists[NUM_SCRIPT_ARGS];
void scriptclass::tokenize( const std::string& t )
{
j = 0;
@ -71,9 +73,15 @@ void scriptclass::tokenize( const std::string& t )
}
}
if (tempword != "" && j < (int) SDL_arraysize(words))
SDL_zeroa(argexists);
if (j < (int) NUM_SCRIPT_ARGS)
{
words[j] = tempword;
argexists[j] = tempword != "";
if (argexists[j])
{
words[j] = tempword;
}
}
}
@ -756,10 +764,10 @@ void scriptclass::run(void)
std::string word7 = words[7];
std::string word8 = words[8];
std::string word9 = words[9];
if (words[6] == "") words[6] = "0";
if (words[7] == "") words[7] = "0";
if (words[8] == "") words[8] = "320";
if (words[9] == "") words[9] = "240";
if (!argexists[6]) words[6] = "0";
if (!argexists[7]) words[7] = "0";
if (!argexists[8]) words[8] = "320";
if (!argexists[9]) words[9] = "240";
obj.createentity(
ss_toi(words[1]),
ss_toi(words[2]),

4
desktop_version/src/Script.h
View file

@ -15,6 +15,8 @@ struct Script
std::vector<std::string> contents;
};
#define NUM_SCRIPT_ARGS 40
class scriptclass
{
public:
@ -47,7 +49,7 @@ public:
//Script contents
std::vector<std::string> commands;
std::string words[40];
std::string words[NUM_SCRIPT_ARGS];
std::vector<std::string> txt;
std::string scriptname;
int position;