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LocalView.cpp
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LocalView.cpp
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/*
* PythonBot - A game by a developer for developers.
* Copyright (C) 2015-2021 Jean-Marie BARAN (jeanmarie.baran@gmail.com)
*
* 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 3 of the License, or
* (at your option) 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, see <http://www.gnu.org/licenses/>.
*
* Refer to 'LICENSE.txt' for the full notice.
*/
#include <algorithm>
#include <iostream>
#include <sstream>
#
#include "LocalView.h"
float const LocalView::edgesWidth;
float const LocalView::defaultMargin;
LocalView::LocalView(Model const &model, sf::Color edgesColor)
: m_model(model) {
// Retrieve a valid video mode.
unsigned int const panelWidth(400); // Bots info display zone.
sf::VideoMode videoMode = sf::VideoMode::getDesktopMode();
videoMode.width =
model.get_width() + 2 * edgesWidth + panelWidth + defaultMargin;
videoMode.height = model.get_height() + 2 * edgesWidth;
// Configure antialiasing.
sf::ContextSettings settings;
settings.antialiasingLevel = 8;
// Set up the window.
m_window.create(videoMode, "PythonBot", sf::Style::Default, settings);
if (!m_window.isOpen())
std::cerr << "Error : Window creation failed." << std::endl;
m_window.setFramerateLimit(60);
m_window.setKeyRepeatEnabled(false);
// Configure world's edges.
// Up.
m_edges[0].setFillColor(edgesColor);
m_edges[0].setSize(
sf::Vector2f(model.get_width() + 2.0f * edgesWidth, edgesWidth));
m_edges[0].setPosition(-edgesWidth, -edgesWidth);
// Right.
m_edges[1].setFillColor(edgesColor);
m_edges[1].setSize(
sf::Vector2f(edgesWidth, model.get_height() + 2.0f * edgesWidth));
m_edges[1].setPosition((float)model.get_width(), -edgesWidth);
// Bottom.
m_edges[2].setFillColor(edgesColor);
m_edges[2].setSize(
sf::Vector2f(model.get_width() + 2.0f * edgesWidth, edgesWidth));
m_edges[2].setPosition(-edgesWidth, (float)model.get_height());
// Left.
m_edges[3].setFillColor(edgesColor);
m_edges[3].setSize(
sf::Vector2f(edgesWidth, model.get_height() + 2.0f * edgesWidth));
m_edges[3].setPosition(-edgesWidth, -edgesWidth);
// Configure views.
m_arena.setSize(m_window.getSize().x - (float)(panelWidth)-defaultMargin,
(float)m_window.getSize().y);
m_arena.setCenter(m_arena.getSize() / 2.0f -
sf::Vector2f(edgesWidth, edgesWidth));
m_window.setView(m_arena);
m_panel.setSize(((float)panelWidth), (float)m_window.getSize().y);
m_panel.setCenter(m_panel.getSize() / 2.0f);
/* Initial resize useful on Windows where the content is not properly sized. A
* recalculation fix it. */
resize();
// Load font and initialize strings.
const std::string fontName("arial.ttf");
if (!m_font.loadFromFile(fontName))
std::cerr << "Error : Unable to load " << fontName << std::endl;
else {
m_botName.setFont(m_font);
m_numKills.setFont(m_font);
m_pause.setFont(m_font);
m_botName.setCharacterSize(15);
m_numKills.setCharacterSize(15);
m_pause.setCharacterSize(100);
m_botName.setStyle(sf::Text::Bold);
m_numKills.setStyle(sf::Text::Bold);
m_pause.setStyle(sf::Text::Bold);
m_pause.setColor(sf::Color::Red);
m_pause.setString("Pause");
m_pause.setPosition(
m_arena.getCenter().x - m_pause.getLocalBounds().width / 2.0f,
m_arena.getCenter().y -
m_pause.getLocalBounds()
.height); // "Pause" fits better a little higher.
}
}
LocalView::EventRequest LocalView::read_events() {
sf::Event event;
while (m_window.pollEvent(event)) {
if (event.type == sf::Event::Closed) {
m_window.close();
return REQUEST_QUIT;
} else if (event.type == sf::Event::Resized)
resize();
else if (event.type == sf::Event::KeyPressed &&
event.key.code == sf::Keyboard::Space)
return REQUEST_PAUSE;
}
return REQUEST_NONE;
}
void LocalView::draw(std::vector<Object *> const &objects) {
// Add the objects to the scene.
for (unsigned int i(0); i < objects.size(); i++)
m_window.draw(objects[i]->get_SFML_shape());
}
void LocalView::render() {
// Draw explosions.
draw_explosions();
// Draw bots' information.
draw_bots_info();
m_window.display();
m_window.clear(sf::Color::Black);
// Draw world's edges.
draw_edges();
}
void LocalView::add_explosion(sf::Vector2f const &position, float radius) {
m_explosions.push_back(new sf::CircleShape(radius));
m_explosions.back()->setOrigin(radius, radius);
m_explosions.back()->setPosition(position);
m_explosions.back()->setFillColor(sf::Color::Yellow);
m_explosions.back()->setOutlineThickness(radius / 4.0f);
m_explosions.back()->setOutlineColor(sf::Color::Red);
}
void LocalView::add_bot_explosion(sf::Vector2f const &position, float radius) {
add_explosion(position, radius);
}
void LocalView::resize() {
// Update the views to the new size of the window.
// Arena.
float const marginBorders(
(m_window.getSize().y - ((float)m_arena.getSize().y)) /
2.0f); // Margin to the window's borders.
sf::FloatRect viewport;
viewport.top = marginBorders / m_window.getSize().y;
viewport.left = marginBorders / m_window.getSize().x;
viewport.width = m_arena.getSize().x / m_window.getSize().x;
viewport.height = m_arena.getSize().y / m_window.getSize().y;
m_arena.setViewport(viewport);
m_window.setView(m_arena);
// Panel.
float const margin(marginBorders == 0.0f
? defaultMargin
: 0.0f); // Margin between arena and panel.
m_panel.setSize(m_window.getSize().x - m_arena.getSize().x - margin -
2.0f * marginBorders,
m_panel.getSize().y);
viewport.left = (m_arena.getSize().x + 2.0f * marginBorders + margin) /
m_window.getSize().x;
viewport.width = m_panel.getSize().x / m_window.getSize().x;
m_panel.setCenter(m_panel.getSize() / 2.0f);
m_panel.setViewport(viewport);
}
void LocalView::draw_pause() { m_window.draw(m_pause); }
void LocalView::draw_edges() {
for (unsigned int i(0); i < 4; i++)
m_window.draw(m_edges[i]);
}
void LocalView::draw_explosions() {
for (std::vector<sf::CircleShape *>::iterator iter(m_explosions.begin());
iter != m_explosions.end();
/* Nothing (because erasing elements). */) {
/* Draw then increase the radius. A standard explosion has a radius up to 4,
* a bot explosion from 5 to 8. */
m_window.draw(**iter);
float radius((*iter)->getRadius());
if (radius < 4.0f || (5.0f <= radius && radius < 8.0f)) {
(*iter)->setOrigin(radius + 0.4f, radius + 0.4f); // Readjust the origin.
(*iter)->setRadius(radius + 0.4f);
(*iter)->setOutlineThickness((*iter)->getRadius() / 4.0f);
iter++;
} else {
delete *iter;
iter = m_explosions.erase(iter);
}
}
}
void LocalView::draw_bots_info() {
// Switch to panel.
m_window.setView(m_panel);
// Setup box.
sf::RectangleShape box(
sf::Vector2f(m_panel.getSize().x / 2.0f - defaultMargin / 4.0f, 55.0f));
box.setFillColor(sf::Color::Black);
box.setOutlineThickness(-1.0f);
// Setup health rectangle.
// -10.0f, 10.0f : Maximum health of a bot (10).
float const healthBoxWidth((box.getSize().x - 10.0f - 1.0f) / 10.0f);
float const healthBoxHeight(std::min(healthBoxWidth, box.getSize().y / 3.0f));
sf::RectangleShape healthBox(sf::Vector2f(healthBoxWidth, healthBoxHeight));
// Setup bullet rectangle.
float const bulletBoxHeight(box.getSize().y - healthBoxHeight - 25.0f);
sf::RectangleShape bulletBox(
sf::Vector2f(bulletBoxHeight / 3.0f, bulletBoxHeight));
// Number of boxes vertically (maximum), and gap between them.
unsigned int const numBoxVertically(10);
float const gap(
(m_panel.getSize().y - ((float)numBoxVertically) * box.getSize().y) /
(((float)numBoxVertically) - 1.0f));
float posX(0.0f);
for (unsigned int i(0); i < m_model.get_bots().size(); i++) {
// Get a direct pointer for convenience.
Bot *bot((Bot *)m_model.get_bots()[i]);
// Fill the second column if the first one is full.
if (i == numBoxVertically)
posX = box.getSize().x + defaultMargin / 2.0f;
// Draw box.
box.setPosition(posX,
(float)(i % numBoxVertically) * (box.getSize().y + gap));
box.setOutlineColor(bot->get_SFML_shape().getOutlineColor());
m_window.draw(box);
// Draw name.
m_botName.setString(bot->get_name());
m_botName.setColor(box.getOutlineColor());
m_botName.setPosition(box.getPosition() + sf::Vector2f(5.0f, 2.0f));
m_window.draw(m_botName);
// Draw number of kills.
std::ostringstream numKills;
numKills << bot->get_num_kills();
m_numKills.setString(numKills.str());
/* Increase the size of the number of kills if it is high (can break the
* design if it is too high). */
m_numKills.setCharacterSize(15 + bot->get_num_kills() / 2.0f);
m_numKills.setColor(box.getOutlineColor());
m_numKills.setPosition(sf::Vector2f(box.getPosition().x + box.getSize().x -
m_numKills.getLocalBounds().width -
5.0f,
m_botName.getPosition().y));
m_window.draw(m_numKills);
// Draw health.
healthBox.setFillColor(box.getOutlineColor());
for (unsigned int j(0); j < bot->get_health(); j++) {
healthBox.setPosition(
box.getPosition().x + ((float)j) * (healthBoxWidth + 1.0f) + 1.0f,
box.getPosition().y + box.getSize().y - 1.0f - healthBoxHeight);
m_window.draw(healthBox);
}
// Draw bullets.
bulletBox.setFillColor(box.getOutlineColor());
for (unsigned int j(0); j < bot->get_bullets_left(); j++) {
bulletBox.setPosition(box.getPosition().x +
((float)j) * (bulletBox.getSize().x + 4.0f) +
4.0f,
box.getPosition().y + box.getSize().y -
healthBoxHeight - bulletBox.getSize().y - 3.0f);
m_window.draw(bulletBox);
}
}
// Switch to arena.
m_window.setView(m_arena);
}