summaryrefslogtreecommitdiff
path: root/src/gui/viewport.cpp
blob: 7f97d98c020ef018ffac16df41d4bebce82a8326 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
/*
 *  The Mana World
 *  Copyright (C) 2004  The Mana World Development Team
 *
 *  This file is part of The Mana World.
 *
 *  This program 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; either version 2 of the License, or
 *  any later version.
 *
 *  This program 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 this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "ministatus.h"
#include "popupmenu.h"
#include "viewport.h"

#include "../beingmanager.h"
#include "../configuration.h"
#include "../flooritemmanager.h"
#include "../graphics.h"
#include "../keyboardconfig.h"
#include "../localplayer.h"
#include "../map.h"
#include "../monster.h"
#include "../npc.h"
#include "../textmanager.h"

#include "../resources/monsterinfo.h"
#include "../resources/resourcemanager.h"

#include "../utils/stringutils.h"

extern volatile int tick_time;

Viewport::Viewport():
    mMap(0),
    mMouseX(0),
    mMouseY(0),
    mPixelViewX(0.0f),
    mPixelViewY(0.0f),
    mTileViewX(0),
    mTileViewY(0),
    mShowDebugPath(false),
    mPlayerFollowMouse(false),
    mWalkTime(0)
{
    setOpaque(false);
    addMouseListener(this);

    mScrollLaziness = (int) config.getValue("ScrollLaziness", 16);
    mScrollRadius = (int) config.getValue("ScrollRadius", 0);
    mScrollCenterOffsetX = (int) config.getValue("ScrollCenterOffsetX", 0);
    mScrollCenterOffsetY = (int) config.getValue("ScrollCenterOffsetY", 0);

    config.addListener("ScrollLaziness", this);
    config.addListener("ScrollRadius", this);

    mPopupMenu = new PopupMenu;
}

Viewport::~Viewport()
{
    delete mPopupMenu;
}

void Viewport::setMap(Map *map)
{
    mMap = map;
}

extern MiniStatusWindow *miniStatusWindow;

void Viewport::draw(gcn::Graphics *gcnGraphics)
{
    static int lastTick = tick_time;

    if (!mMap || !player_node)
        return;

    Graphics *graphics = static_cast<Graphics*>(gcnGraphics);

    // Ensure the client doesn't freak out if a feature localplayer uses
    // is dependent on a map.
    player_node->mMapInitialized = true;

    // Avoid freaking out when tick_time overflows
    if (tick_time < lastTick)
    {
        lastTick = tick_time;
    }

    // Calculate viewpoint
    int midTileX = (graphics->getWidth() + mScrollCenterOffsetX) / 32 / 2;
    int midTileY = (graphics->getHeight() + mScrollCenterOffsetY) / 32 / 2;

    int player_x = (player_node->mX - midTileX) * 32 +
                    player_node->getXOffset();
    int player_y = (player_node->mY - midTileY) * 32 +
                    player_node->getYOffset();

    if (mScrollLaziness < 1)
        mScrollLaziness = 1; // Avoids division by zero

    // Apply lazy scrolling
    while (lastTick < tick_time)
    {
        if (player_x > mPixelViewX + mScrollRadius)
        {
            mPixelViewX += (player_x - mPixelViewX - mScrollRadius) /
                            mScrollLaziness;
        }
        if (player_x < mPixelViewX - mScrollRadius)
        {
            mPixelViewX += (player_x - mPixelViewX + mScrollRadius) /
                            mScrollLaziness;
        }
        if (player_y > mPixelViewY + mScrollRadius)
        {
            mPixelViewY += (player_y - mPixelViewY - mScrollRadius) /
                            mScrollLaziness;
        }
        if (player_y < mPixelViewY - mScrollRadius)
        {
            mPixelViewY += (player_y - mPixelViewY + mScrollRadius) /
                            mScrollLaziness;
        }
        lastTick++;
    }

    // Auto center when player is off screen
    if (        player_x - mPixelViewX > graphics->getWidth() / 2
            ||  mPixelViewX - player_x > graphics->getWidth() / 2
            ||  mPixelViewY - player_y > graphics->getHeight() / 2
            ||  player_y - mPixelViewY > graphics->getHeight() / 2
        )
    {
        mPixelViewX = player_x;
        mPixelViewY = player_y;
    };

    // Don't move camera so that the end of the map is on screen
    int viewXmax = (mMap->getWidth() * 32) - graphics->getWidth();
    int viewYmax = (mMap->getHeight() * 32) - graphics->getHeight();
    if (mMap)
    {
        if (mPixelViewX < 0)
            mPixelViewX = 0;
        if (mPixelViewY < 0)
            mPixelViewY = 0;
        if (mPixelViewX > viewXmax)
            mPixelViewX = viewXmax;
        if (mPixelViewY > viewYmax)
            mPixelViewY = viewYmax;
    }

    mTileViewX = (int) (mPixelViewX + 16) / 32;
    mTileViewY = (int) (mPixelViewY + 16) / 32;

    // Draw tiles and sprites
    if (mMap)
    {
        mMap->draw(graphics, (int) mPixelViewX, (int) mPixelViewY);

        // Find a path from the player to the mouse, and draw it. This is for
        // debug purposes.
        if (mShowDebugPath)
        {
            // Get the current mouse position
            SDL_GetMouseState(&mMouseX, &mMouseY);

            int mouseTileX = mMouseX / 32 + mTileViewX;
            int mouseTileY = mMouseY / 32 + mTileViewY;

            Path debugPath = mMap->findPath(player_node->mX, player_node->mY,
                                            mouseTileX, mouseTileY);

            graphics->setColor(gcn::Color(255, 0, 0));
            for (PathIterator i = debugPath.begin(); i != debugPath.end(); i++)
            {
                int squareX = i->x * 32 - (int) mPixelViewX + 12;
                int squareY = i->y * 32 - (int) mPixelViewY + 12;

                graphics->fillRectangle(gcn::Rectangle(squareX, squareY, 8, 8));
                graphics->drawText(toString(mMap->getMetaTile(i->x, i->y)->Gcost),
                                   squareX + 4, squareY + 12,
                                   gcn::Graphics::CENTER);
            }
        }
    }

    if (player_node->mUpdateName)
    {
        player_node->mUpdateName = false;
        player_node->setName(player_node->getName());
    }

    // Draw text
    if (textManager)
    {
        textManager->draw(graphics, (int) mPixelViewX, (int) mPixelViewY);
    }

    // Draw player names, speech, and emotion sprite as needed
    Beings &beings = beingManager->getAll();
    for (BeingIterator i = beings.begin(); i != beings.end(); i++)
    {
        (*i)->drawSpeech((int) mPixelViewX, (int) mPixelViewY);
        (*i)->drawEmotion(graphics, (int) mPixelViewX, (int) mPixelViewY);
    }

    if (miniStatusWindow)
        miniStatusWindow->drawIcons(graphics);

    // Draw contained widgets
    WindowContainer::draw(gcnGraphics);
}

void Viewport::logic()
{
    WindowContainer::logic();

    if (!mMap || !player_node)
        return;

    Uint8 button = SDL_GetMouseState(&mMouseX, &mMouseY);

    if (mPlayerFollowMouse && button & SDL_BUTTON(1) &&
            mWalkTime != player_node->mWalkTime)
    {
        player_node->setDestination(mMouseX / 32 + mTileViewX,
                                    mMouseY / 32 + mTileViewY);
        mWalkTime = player_node->mWalkTime;
    }
}

void Viewport::mousePressed(gcn::MouseEvent &event)
{
    // Check if we are alive and kickin'
    if (!mMap || !player_node || player_node->mAction == Being::DEAD)
        return;

    // Check if we are busy
    if (current_npc)
        return;

    mPlayerFollowMouse = false;

    const int tilex = event.getX() / 32 + mTileViewX;
    const int tiley = event.getY() / 32 + mTileViewY;
    const int x = (int)((float) event.getX() + mPixelViewX);
    const int y = (int)((float) event.getY() + mPixelViewY);

    // Right click might open a popup
    if (event.getButton() == gcn::MouseEvent::RIGHT)
    {
        Being *being;
        FloorItem *floorItem;

        if ((being = beingManager->findBeingByPixel(x, y)) &&
             being != player_node)
        {
           mPopupMenu->showPopup(event.getX(), event.getY(), being);
           return;
        }
        else if ((floorItem = floorItemManager->findByCoordinates(tilex,
                                                                  tiley)))
        {
            mPopupMenu->showPopup(event.getX(), event.getY(), floorItem);
            return;
        }
    }

    // If a popup is active, just remove it
    if (mPopupMenu->isVisible())
    {
        mPopupMenu->setVisible(false);
        return;
    }

    // Left click can cause different actions
    if (event.getButton() == gcn::MouseEvent::LEFT)
    {
        Being *being;
        FloorItem *item;

        // Interact with some being
//        if ((being = beingManager->findBeing(tilex, tiley)))
        if ((being = beingManager->findBeingByPixel(x, y)))
        {
            switch (being->getType())
            {
                case Being::NPC:
                    dynamic_cast<NPC*>(being)->talk();
                    break;

                case Being::MONSTER:
                case Being::PLAYER:
                    if (being->mAction == Being::DEAD)
                        break;

                    if (player_node->withinAttackRange(being) ||
                        keyboard.isKeyActive(keyboard.KEY_ATTACK))
                    {
                        player_node->setGotoTarget(being);
                        player_node->attack(being,
                            !keyboard.isKeyActive(keyboard.KEY_TARGET));
                    }
                    else
                    {
                        player_node->setDestination(tilex, tiley);
                    }
                    break;

                default:
                    break;
             }
        }
        // Pick up some item
        else if ((item = floorItemManager->findByCoordinates(tilex, tiley)))
        {
            player_node->pickUp(item);
        }
        // Just walk around
        else
        {
            player_node->stopAttack();
            player_node->setDestination(tilex, tiley);
            mPlayerFollowMouse = true;
        }
    }
    else if (event.getButton() == gcn::MouseEvent::MIDDLE)
    {
        // Find the being nearest to the clicked position
        Being *target = beingManager->findNearestLivingBeing(tilex, tiley, 20,
                                                              Being::MONSTER);

        if (target)
             player_node->setTarget(target);
    }
}

void Viewport::mouseDragged(gcn::MouseEvent &event)
{
    if (!mMap || !player_node)
        return;

    if (mPlayerFollowMouse && mWalkTime == player_node->mWalkTime)
    {
        int destX = event.getX() / 32 + mTileViewX;
        int destY = event.getY() / 32 + mTileViewY;
        player_node->setDestination(destX, destY);
    }
}

void Viewport::mouseReleased(gcn::MouseEvent &event)
{
    mPlayerFollowMouse = false;
}

void Viewport::showPopup(int x, int y, Item *item)
{
    mPopupMenu->showPopup(x, y, item);
}

void Viewport::optionChanged(const std::string &name)
{
    mScrollLaziness = (int) config.getValue("ScrollLaziness", 32);
    mScrollRadius = (int) config.getValue("ScrollRadius", 32);
}