# texteff.cpp

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    00001 /* $Id$ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * 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.
    00006  * 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.
    00007  * 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/>.
    00008  */
    00009
    00012 #include "stdafx.h"
    00013 #include "texteff.hpp"
    00014 #include "transparency.h"
    00015 #include "strings_func.h"
    00016 #include "core/smallvec_type.hpp"
    00017 #include "viewport_func.h"
    00018 #include "settings_type.h"
    00019
    00021 struct TextEffect : public ViewportSign {
    00022   uint64 params_1;
    00023   uint64 params_2;
    00024   StringID string_id;
    00025   uint8 duration;
    00026   TextEffectMode mode;
    00027
    00029   void Reset()
    00030   {
    00031     this->MarkDirty();
    00032     this->width_normal = 0;
    00033     this->string_id = INVALID_STRING_ID;
    00034   }
    00035 };
    00036
    00037 static SmallVector<struct TextEffect, 32> _text_effects;
    00038
    00039 /* Text Effects */
    00040 TextEffectID AddTextEffect(StringID msg, int center, int y, uint8 duration, TextEffectMode mode)
    00041 {
    00042   if (_game_mode == GM_MENU) return INVALID_TE_ID;
    00043
    00044   TextEffectID i;
    00045   for (i = 0; i < _text_effects.Length(); i++) {
    00046     if (_text_effects[i].string_id == INVALID_STRING_ID) break;
    00047   }
    00048   if (i == _text_effects.Length()) _text_effects.Append();
    00049
    00050   TextEffect *te = _text_effects.Get(i);
    00051
    00052   /* Start defining this object */
    00053   te->string_id = msg;
    00054   te->duration = duration;
    00055   te->params_1 = GetDParam(0);
    00056   te->params_2 = GetDParam(1);
    00057   te->mode = mode;
    00058
    00059   /* Make sure we only dirty the new area */
    00060   te->width_normal = 0;
    00061   te->UpdatePosition(center, y, msg);
    00062
    00063   return i;
    00064 }
    00065
    00066 void UpdateTextEffect(TextEffectID te_id, StringID msg)
    00067 {
    00068   /* Update details */
    00069   TextEffect *te = _text_effects.Get(te_id);
    00070   te->string_id = msg;
    00071   te->params_1 = GetDParam(0);
    00072   te->params_2 = GetDParam(1);
    00073
    00074   te->UpdatePosition(te->center, te->top, msg);
    00075 }
    00076
    00077 void RemoveTextEffect(TextEffectID te_id)
    00078 {
    00079   _text_effects[te_id].Reset();
    00080 }
    00081
    00082 void MoveAllTextEffects()
    00083 {
    00084   const TextEffect *end = _text_effects.End();
    00085   for (TextEffect *te = _text_effects.Begin(); te != end; te++) {
    00086     if (te->string_id == INVALID_STRING_ID) continue;
    00087     if (te->mode != TE_RISING) continue;
    00088
    00089     if (te->duration-- == 0) {
    00090       te->Reset();
    00091       continue;
    00092     }
    00093
    00094     te->MarkDirty();
    00095     te->top -= ZOOM_LVL_BASE;
    00096     te->MarkDirty();
    00097   }
    00098 }
    00099
    00100 void InitTextEffects()
    00101 {
    00102   _text_effects.Reset();
    00103 }
    00104
    00105 void DrawTextEffects(DrawPixelInfo *dpi)
    00106 {
    00107   /* Don't draw the text effects when zoomed out a lot */
    00108   if (dpi->zoom > ZOOM_LVL_OUT_8X) return;
    00109
    00110   const TextEffect *end = _text_effects.End();
    00111   for (TextEffect *te = _text_effects.Begin(); te != end; te++) {
    00112     if (te->string_id == INVALID_STRING_ID) continue;
    00113     if (te->mode == TE_RISING || (_settings_client.gui.loading_indicators && !IsTransparencySet(TO_LOADING))) {
    00114       ViewportAddString(dpi, ZOOM_LVL_OUT_8X, te, te->string_id, te->string_id - 1, 0, te->params_1, te->params_2);
    00115     }
    00116   }
    00117 }