Define a new string

[peste1]

with ShowErrorMessage() I want to display a new error message.
But.. how can I create english.lng??

The program says:

2034: WARNING: String name 'STR_5808_ERROR' is invalid (or already used)
2035: WARNING: String STR_5808_ERROR has no definition. Using NULL value

Thanks!
Very good project!

[Alex Nipal]

How to define new string.

First, add the string into strings.h and make sure that number value (enums are number values) is not used anywhere else

Second, look into strings.c, where is this table:

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static const uint16 _lang_pack_num[32] = {
	0x33B, 0x11, 0x25, 0x19, 0x5D, 0x11, 0x6D, 0x08,
	0x11, 0x3C, 0x2A, 0x08, 0x19, 0x39, 0x80, 0x0,
	0x108, 0x6C, 0x38, 0x43, 0x44, 0, 0x6, 0x0,
	0,0,0,0,0,0,0,0
};

You'll have to modify the number which corresponds to the postion of enum you have modified in strings.h. Every number in this array corresponds to number of entries for each enum in strings.h. And don't forget, it is a hex. number!

Third, use the defined string where you want it, then compile program.

Forth, add new strings into english.txt (to the right position, you mustn't have it mixed) and compile with strgen.

[peste1]

Thank you for the reply!
But... I can't find _lang_pack_num[32] in strings.c

Are u sure ?

[Alex Nipal]

But... I can't find _lang_pack_num[32] in strings.c

At the end of file there is:

Code: Select all

bool read_language_pack(const char *filename)

And upon this function there is the lang_pack_num array

[peste1]

I'm sorry... but I'm new using C++

Code: Select all

bool read_language_pack(const char *filename) {
	FILE *in;
	int tot_count, i;
	byte *lang_pack;
	size_t len;
	byte **langpack_offs;
	byte *s;
	uint offs;

	in = fopen(filename, "rb");
	if (in == NULL)
		return false;

	fseek(in, 0, SEEK_END);
	len = ftell(in);
	fseek(in, 0, SEEK_SET);
	lang_pack = (byte*)malloc(len + 1); // want a traling NUL
	if (lang_pack == NULL) {
		fclose(in);
		return false;
	}
	lang_pack[len] = 0;
	fread(lang_pack, len, 1, in);
	fclose(in);

#if defined(TTD_BIG_ENDIAN)
	for(i=0; i!=32; i++) {
		((uint16*)lang_pack)[i] = READ_LE_UINT16((uint16*)lang_pack + i);
	}
#endif


	tot_count = 0;
	for(i=0; i!=32; i++) {
		uint num = ((uint16*)lang_pack)[i];
		_langtab_start[i] = tot_count;
		_langtab_num[i] = num;
		tot_count += num;
	}

	// Allocate offsets
	_langpack_offs = langpack_offs = (byte**)malloc(tot_count * sizeof(byte*));

	// Fill offsets
	s = lang_pack + 32 * sizeof(uint16);
	for(i=0; i!=tot_count; i++) {
		langpack_offs[i] = s + sizeof(uint16);
		offs = READ_LE_UINT16(s);
		s[0] = 0;// This has the effect of zero terminating the string
		s += sizeof(uint16) + offs;
	}
	return true;
}

[Alex Nipal]

it's not C++, it's only old poor C
a few lines higher you have the array

[ludde]

The array is no longer there in latest SVN. You don't need to modify there. It was just there for debugging purposes.