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Files
OpenTTD/src/newgrf/newgrf_act12.cpp
2025-04-11 22:11:28 +02:00

81 lines
2.9 KiB
C++

/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file newgrf_act12.cpp NewGRF Action 0x12 handler. */
#include "../stdafx.h"
#include "../debug.h"
#include "../fontcache.h"
#include "newgrf_bytereader.h"
#include "newgrf_internal.h"
#include "../safeguards.h"
/** Action 0x12 */
static void LoadFontGlyph(ByteReader &buf)
{
/* <12> <num_def> <font_size> <num_char> <base_char>
*
* B num_def Number of definitions
* B font_size Size of font (0 = normal, 1 = small, 2 = large, 3 = mono)
* B num_char Number of consecutive glyphs
* W base_char First character index */
uint8_t num_def = buf.ReadByte();
for (uint i = 0; i < num_def; i++) {
FontSize size = (FontSize)buf.ReadByte();
uint8_t num_char = buf.ReadByte();
uint16_t base_char = buf.ReadWord();
if (size >= FS_END) {
GrfMsg(1, "LoadFontGlyph: Size {} is not supported, ignoring", size);
}
GrfMsg(7, "LoadFontGlyph: Loading {} glyph(s) at 0x{:04X} for size {}", num_char, base_char, size);
for (uint c = 0; c < num_char; c++) {
if (size < FS_END) SetUnicodeGlyph(size, base_char + c, _cur_gps.spriteid);
_cur_gps.nfo_line++;
LoadNextSprite(_cur_gps.spriteid++, *_cur_gps.file, _cur_gps.nfo_line);
}
}
}
/** Action 0x12 (SKIP) */
static void SkipAct12(ByteReader &buf)
{
/* <12> <num_def> <font_size> <num_char> <base_char>
*
* B num_def Number of definitions
* B font_size Size of font (0 = normal, 1 = small, 2 = large)
* B num_char Number of consecutive glyphs
* W base_char First character index */
uint8_t num_def = buf.ReadByte();
for (uint i = 0; i < num_def; i++) {
/* Ignore 'size' byte */
buf.ReadByte();
/* Sum up number of characters */
_cur_gps.skip_sprites += buf.ReadByte();
/* Ignore 'base_char' word */
buf.ReadWord();
}
GrfMsg(3, "SkipAct12: Skipping {} sprites", _cur_gps.skip_sprites);
}
template <> void GrfActionHandler<0x12>::FileScan(ByteReader &buf) { SkipAct12(buf); }
template <> void GrfActionHandler<0x12>::SafetyScan(ByteReader &buf) { SkipAct12(buf); }
template <> void GrfActionHandler<0x12>::LabelScan(ByteReader &buf) { SkipAct12(buf); }
template <> void GrfActionHandler<0x12>::Init(ByteReader &buf) { SkipAct12(buf); }
template <> void GrfActionHandler<0x12>::Reserve(ByteReader &buf) { SkipAct12(buf); }
template <> void GrfActionHandler<0x12>::Activation(ByteReader &buf) { LoadFontGlyph(buf); }