/*
* The Mana World
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World 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.
*
* The Mana World 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 The Mana World; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <cassert>
#include "gui.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/animation.h"
#include "../resources/image.h"
#include "../resources/imageset.h"
#include "../resources/monsterinfo.h"
#include "../resources/resourcemanager.h"
#include "../utils/tostring.h"
extern volatile int tick_time;
extern volatile int tick_time;
Viewport::Viewport():
mMap(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;
}
void
Viewport::draw(gcn::Graphics *gcnGraphics)
{
static int lastTick = tick_time;
if (!mMap || !player_node)
return;
Graphics *graphics = static_cast<Graphics*>(gcnGraphics);
// 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
int mouseX, mouseY;
SDL_GetMouseState(&mouseX, &mouseY);
int mouseTileX = mouseX / 32 + mTileViewX;
int mouseTileY = mouseY / 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);
}
}
}
// 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(graphics, -(int) mPixelViewX, -(int) mPixelViewY);
(*i)->drawEmotion(graphics, -(int) mPixelViewX, -(int) mPixelViewY);
}
// Draw contained widgets
WindowContainer::draw(gcnGraphics);
}
void Viewport::logic()
{
WindowContainer::logic();
if (!mMap || !player_node)
return;
int mouseX, mouseY;
Uint8 button = SDL_GetMouseState(&mouseX, &mouseY);
if (mPlayerFollowMouse && button & SDL_BUTTON(1) &&
mWalkTime != player_node->mWalkTime)
{
player_node->setDestination(mouseX / 32 + mTileViewX,
mouseY / 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->findBeingByPixel(x, y);
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);
}