missile.cpp

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/*
 * Copyright (c) 2010-2020 OTClient <https://github.com/edubart/otclient>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
 
#include "missile.h"
#include <framework/core/clock.h>
#include <framework/core/eventdispatcher.h>
#include "map.h"
#include "thingtypemanager.h"
#include "tile.h"
 
void Missile::draw(const Point& dest, float scaleFactor, int redrawFlag, LightView* lightView)
{
    if(m_id == 0)
        return;
 
    int xPattern = 0, yPattern = 0;
    if(m_direction == Otc::NorthWest) {
        xPattern = 0;
        yPattern = 0;
    } else if(m_direction == Otc::North) {
        xPattern = 1;
        yPattern = 0;
    } else if(m_direction == Otc::NorthEast) {
        xPattern = 2;
        yPattern = 0;
    } else if(m_direction == Otc::East) {
        xPattern = 2;
        yPattern = 1;
    } else if(m_direction == Otc::SouthEast) {
        xPattern = 2;
        yPattern = 2;
    } else if(m_direction == Otc::South) {
        xPattern = 1;
        yPattern = 2;
    } else if(m_direction == Otc::SouthWest) {
        xPattern = 0;
        yPattern = 2;
    } else if(m_direction == Otc::West) {
        xPattern = 0;
        yPattern = 1;
    } else {
        xPattern = 1;
        yPattern = 1;
    }
 
    const float fraction = m_animationTimer.ticksElapsed() / m_duration;
    rawGetThingType()->draw(dest + m_delta * fraction * scaleFactor, scaleFactor, 0, xPattern, yPattern, 0, 0, redrawFlag, lightView);
}
 
void Missile::setPath(const Position& fromPosition, const Position& toPosition)
{
    m_position = fromPosition;
    m_delta = Point(toPosition.x - fromPosition.x, toPosition.y - fromPosition.y);
 
    const float deltaLength = m_delta.length();
    if(deltaLength == 0) {
        g_map.removeThing(this);
        return;
    }
 
    m_direction = fromPosition.getDirectionFromPosition(toPosition);
 
    m_duration = (Otc::MISSILE_TICKS_PER_FRAME * 2) * std::sqrt(deltaLength);
    m_delta *= Otc::TILE_PIXELS;
    m_animationTimer.restart();
 
    // schedule removal
    const auto self = asMissile();
    g_dispatcher.scheduleEvent([self]() { g_map.removeThing(self); }, m_duration);
 
    startListenerPainter(m_duration / Otc::TILE_PIXELS);
}
 
void Missile::setId(uint32 id)
{
    if(!g_things.isValidDatId(id, ThingCategoryMissile))
        id = 0;
    m_id = id;
}
 
const ThingTypePtr& Missile::getThingType()
{
    return g_things.getThingType(m_id, ThingCategoryMissile);
}
 
ThingType* Missile::rawGetThingType()
{
    return g_things.rawGetThingType(m_id, ThingCategoryMissile);
}