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vcmi/client/battle/CBattleRenderer.cpp
2022-12-06 13:41:29 +02:00

78 lines
2.1 KiB
C++

/*
* CBattleFieldController.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "CBattleRenderer.h"
#include "CBattleInterface.h"
#include "CBattleEffectsController.h"
#include "CBattleSiegeController.h"
#include "CBattleStacksController.h"
#include "CBattleObstacleController.h"
void CBattleRenderer::collectObjects()
{
owner->collectRenderableObjects(*this);
owner->effectsController->collectRenderableObjects(*this);
owner->obstacleController->collectRenderableObjects(*this);
owner->siegeController->collectRenderableObjects(*this);
owner->stacksController->collectRenderableObjects(*this);
}
void CBattleRenderer::sortObjects()
{
auto getRow = [](const RenderableInstance & object) -> int
{
if (object.tile.isValid())
return object.tile.getY();
if ( object.tile == BattleHex::HEX_BEFORE_ALL )
return -1;
if ( object.tile == BattleHex::HEX_AFTER_ALL )
return GameConstants::BFIELD_HEIGHT;
if ( object.tile == BattleHex::INVALID )
return GameConstants::BFIELD_HEIGHT;
assert(0);
return GameConstants::BFIELD_HEIGHT;
};
std::stable_sort(objects.begin(), objects.end(), [&](const RenderableInstance & left, const RenderableInstance & right){
if ( getRow(left) != getRow(right))
return getRow(left) < getRow(right);
return left.layer < right.layer;
});
}
void CBattleRenderer::renderObjects(CBattleRenderer::RendererPtr targetCanvas)
{
for (auto const & object : objects)
object.functor(targetCanvas);
}
CBattleRenderer::CBattleRenderer(CBattleInterface * owner):
owner(owner)
{
}
void CBattleRenderer::insert(EBattleFieldLayer layer, BattleHex tile, CBattleRenderer::RenderFunctor functor)
{
objects.push_back({ functor, layer, tile });
}
void CBattleRenderer::execute(CBattleRenderer::RendererPtr targetCanvas)
{
collectObjects();
sortObjects();
renderObjects(targetCanvas);
}