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DungeonMapEntity.cpp
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DungeonMapEntity.cpp

#include "WitchBlastGame.h"
#include "DungeonMapEntity.h"
#include "Constants.h"
#include "sfml_game/ImageManager.h"
DungeonMapEntity::DungeonMapEntity() : GameEntity (0.0f, 0.0f)
{
this->z = -1.0f;
type = 0;
hasChanged = true;
}
void DungeonMapEntity::animate(float delay)
{
age += delay;
bool needCompute = getChanged() || game().getCurrentMap()->getChanged();
if (needCompute) computeVertices();
// blood
bool moving = false;
for (unsigned int i = 0; i < blood.size(); i++)
{
if (blood[i].moving)
{
moving = true;
animateParticle(blood[i], delay);
}
}
if (moving) computeBloodVertices();
}
void DungeonMapEntity::animateParticle(displayEntityStruct &particle, float delay)
{
particle.velocity.x *= 0.95f;
particle.velocity.y *= 0.95f;
if (particle.velocity.x < -5 || particle.velocity.x > 5
|| particle.velocity.y < -5 || particle.velocity.y > 5)
{
particle.x += delay * particle.velocity.x;
particle.y += delay * particle.velocity.y;
}
else
particle.moving = false;
}
bool DungeonMapEntity::getChanged()
{
bool result = hasChanged;
hasChanged = false;
return result;
}
void DungeonMapEntity::render(sf::RenderTarget* app)
{
app->draw(vertices, ImageManager::getInstance().getImage(IMAGE_TILES));
displayBlood(app);
}
std::vector <displayEntityStruct> DungeonMapEntity::getBlood()
{
return blood;
}
void DungeonMapEntity::displayBlood(sf::RenderTarget* app)
{
app->draw(bloodVertices, ImageManager::getInstance().getImage(IMAGE_BLOOD));
}
void DungeonMapEntity::refreshMap()
{
hasChanged = true;
blood.clear();
computeBloodVertices();
}
void DungeonMapEntity::computeVertices()
{
GameMap* gameMap = game().getCurrentMap();
int tilesProLine = 10;
int tileWidth = 64;
int tileHeight = 64;
int tileBoxWidth = 64;
int tileBoxHeight = 64;
vertices.setPrimitiveType(sf::Quads);
vertices.resize(gameMap->getWidth() * gameMap->getHeight() * 4);
for (int i = 0; i < gameMap->getWidth(); i++)
for (int j = 0; j < gameMap->getHeight(); j++)
{
int nx = gameMap->getTile(i, j) % tilesProLine;
int ny = gameMap->getTile(i, j) / tilesProLine;
sf::Vertex* quad = &vertices[(i + j * gameMap->getWidth()) * 4];
quad[0].position = sf::Vector2f(x + i * tileWidth, y + j * tileHeight);
quad[1].position = sf::Vector2f(x + (i + 1) * tileWidth + (tileBoxWidth -tileWidth), y + j * tileHeight);
quad[2].position = sf::Vector2f(x + (i + 1) * tileWidth + (tileBoxWidth -tileWidth), y + (j + 1) * tileHeight + (tileBoxHeight - tileHeight));
quad[3].position = sf::Vector2f(x + i * tileWidth, y + (j + 1) * tileHeight + (tileBoxHeight - tileHeight));
quad[0].texCoords = sf::Vector2f(nx * tileBoxWidth, ny * tileBoxHeight);
quad[1].texCoords = sf::Vector2f((nx + 1) * tileBoxWidth, ny * tileBoxHeight);
quad[2].texCoords = sf::Vector2f((nx + 1) * tileBoxWidth, (ny + 1) * tileBoxHeight);
quad[3].texCoords = sf::Vector2f(nx * tileBoxWidth, (ny + 1) * tileBoxHeight);
}
}
void DungeonMapEntity::computeBloodVertices()
{
bloodVertices.setPrimitiveType(sf::Quads);
bloodVertices.resize(blood.size() * 4);
for (unsigned int i = 0; i < blood.size(); i++)
{
auto particle = blood[i];
sf::Vertex* quad = &bloodVertices[i * 4];
float middle = 8.0f * particle.scale;
int nx = particle.frame % 6;
int ny = particle.frame / 6;
quad[0].position = sf::Vector2f(particle.x - middle, particle.y - middle);
quad[1].position = sf::Vector2f(particle.x + middle, particle.y - middle);
quad[2].position = sf::Vector2f(particle.x + middle, particle.y + middle);
quad[3].position = sf::Vector2f(particle.x - middle, particle.y + middle);
quad[0].texCoords = sf::Vector2f(nx * 16, ny * 16);
quad[1].texCoords = sf::Vector2f((nx + 1) * 16, ny * 16);
quad[2].texCoords = sf::Vector2f((nx + 1) * 16, (ny + 1) * 16);
quad[3].texCoords = sf::Vector2f(nx * 16, (ny + 1) * 16);
}
}
void DungeonMapEntity::generateBlood(float x, float y, BaseCreatureEntity::enumBloodColor bloodColor)
{
displayEntityStruct bloodEntity;
int b0 = 0 + 6 * (int)bloodColor;
bloodEntity.frame = b0 + rand()%6;
bloodEntity.velocity = Vector2D(rand()%250);
bloodEntity.x = x;
bloodEntity.y = y;
bloodEntity.scale = 1.0f + (rand() % 10) * 0.1f;
bloodEntity.moving = true;
blood.push_back(bloodEntity);
}
void DungeonMapEntity::addBlood(float x, float y, int frame, float scale)
{
displayEntityStruct bloodEntity;
bloodEntity.frame = frame;
bloodEntity.x = x;
bloodEntity.y = y;
bloodEntity.velocity.x = 0;
bloodEntity.velocity.y = 0;
bloodEntity.scale = scale;
bloodEntity.moving = true;
blood.push_back(bloodEntity);
}

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