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Location: cpp/openttd-patchpack/source/src/texteff.cpp - annotation
r14065:9eef7d64c20a
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text/x-c
(svn r18620) -Fix: possible deadlock with SDL and changing the resolution in-game
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/*
* 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 texteff.cpp Handling of text effects. */
#include "stdafx.h"
#include "openttd.h"
#include "strings_type.h"
#include "texteff.hpp"
#include "core/bitmath_func.hpp"
#include "transparency.h"
#include "strings_func.h"
#include "core/alloc_func.hpp"
#include "viewport_func.h"
#include "settings_type.h"
enum {
INIT_NUM_TEXT_EFFECTS = 20,
};
/** Container for all information about a text effect */
struct TextEffect : public ViewportSign{
StringID string_id; ///< String to draw for the text effect, if INVALID_STRING_ID then it's not valid
uint16 duration; ///< How long the text effect should stay
uint64 params_1; ///< DParam parameter
TextEffectMode mode; ///< Type of text effect
/** Reset the text effect */
void Reset()
{
this->MarkDirty();
this->width_normal = 0;
this->string_id = INVALID_STRING_ID;
}
};
/* used for text effects */
static TextEffect *_text_effect_list = NULL;
static uint16 _num_text_effects = INIT_NUM_TEXT_EFFECTS;
/* Text Effects */
TextEffectID AddTextEffect(StringID msg, int center, int y, uint16 duration, TextEffectMode mode)
{
TextEffectID i;
if (_game_mode == GM_MENU) return INVALID_TE_ID;
/* Look for a free spot in the text effect array */
for (i = 0; i < _num_text_effects; i++) {
if (_text_effect_list[i].string_id == INVALID_STRING_ID) break;
}
/* If there is none found, we grow the array */
if (i == _num_text_effects) {
_num_text_effects += 25;
_text_effect_list = ReallocT<TextEffect>(_text_effect_list, _num_text_effects);
for (; i < _num_text_effects; i++) _text_effect_list[i].string_id = INVALID_STRING_ID;
i = _num_text_effects - 1;
}
TextEffect *te = &_text_effect_list[i];
/* Start defining this object */
te->string_id = msg;
te->duration = duration;
te->params_1 = GetDParam(0);
te->mode = mode;
/* Make sure we only dirty the new area */
te->width_normal = 0;
te->UpdatePosition(center, y, msg);
return i;
}
void UpdateTextEffect(TextEffectID te_id, StringID msg)
{
assert(te_id < _num_text_effects);
/* Update details */
TextEffect *te = &_text_effect_list[te_id];
te->string_id = msg;
te->params_1 = GetDParam(0);
te->UpdatePosition(te->center, te->top, msg);
}
void RemoveTextEffect(TextEffectID te_id)
{
assert(te_id < _num_text_effects);
_text_effect_list[te_id].Reset();
}
static void MoveTextEffect(TextEffect *te)
{
/* Never expire for duration of 0xFFFF */
if (te->duration == 0xFFFF) return;
if (te->duration < 8) {
te->Reset();
} else {
te->duration -= 8;
te->MarkDirty();
te->top--;
te->MarkDirty();
}
}
void MoveAllTextEffects()
{
for (TextEffectID i = 0; i < _num_text_effects; i++) {
TextEffect *te = &_text_effect_list[i];
if (te->string_id != INVALID_STRING_ID && te->mode == TE_RISING) MoveTextEffect(te);
}
}
void InitTextEffects()
{
if (_text_effect_list == NULL) _text_effect_list = MallocT<TextEffect>(_num_text_effects);
for (TextEffectID i = 0; i < _num_text_effects; i++) _text_effect_list[i].string_id = INVALID_STRING_ID;
}
void DrawTextEffects(DrawPixelInfo *dpi)
{
/* Don't draw the text effects when zoomed out a lot */
if (dpi->zoom > ZOOM_LVL_OUT_2X) return;
for (TextEffectID i = 0; i < _num_text_effects; i++) {
const TextEffect *te = &_text_effect_list[i];
if (te->string_id == INVALID_STRING_ID) continue;
if (te->mode == TE_RISING || (_settings_client.gui.loading_indicators && !IsTransparencySet(TO_LOADING))) {
ViewportAddString(dpi, ZOOM_LVL_OUT_2X, te, te->string_id, te->string_id - 1, 0, te->params_1);
}
}
}
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