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84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
//
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// Created by symeon on 06/04/19.
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//
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#include "DensityGraph.h"
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DensityGraph::DensityGraph() {
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if (!base_texture.loadFromFile(texture_path)) {
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std::cerr << "Unable to load texture " << texture_path;
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throw std::runtime_error("Unable to load texture " + texture_path);
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}
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base_texture.setSmooth(true);
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normal_square.setTexture(base_texture);
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normal_square.setTextureRect({456,270,6,6});
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collision_square.setTexture(base_texture);
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collision_square.setTextureRect({496,270,6,6});
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}
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void DensityGraph::computeDensities(int height, float chartRuntime, Chart& chart, float BPM, int resolution) {
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auto ticksToSeconds = [BPM, resolution](int ticks) -> float {return (60.f * ticks)/(BPM * resolution);};
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int ticks_threshold = static_cast<int>((1.f/60.f)*BPM*resolution);
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last_height = height;
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// minus the slider cursor thiccccnesss
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int available_height = height - 10;
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int sections = (available_height + 1) / 5;
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densities.clear();
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if (sections >= 1) {
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densities.resize(static_cast<unsigned int>(sections),{0,false});
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float section_length = chartRuntime/sections;
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last_section_length = section_length;
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for (auto const& note : chart.Notes) {
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auto section = static_cast<unsigned long>(ticksToSeconds(note.getTiming())/section_length);
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densities.at(section).density += 1;
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if (not densities.at(section).has_collisions) {
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densities.at(section).has_collisions = chart.is_colliding(note,ticks_threshold);
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}
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}
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}
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updateGraphTexture();
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}
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void DensityGraph::updateGraphTexture() {
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if (!graph.create(45, static_cast<unsigned int>(*last_height))) {
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std::cerr << "Unable to create DensityGraph's RenderTexture";
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throw std::runtime_error("Unable to create DensityGraph's RenderTexture");
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}
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graph_rect = {0.0, 0.0, 45.0, static_cast<float>(*last_height)};
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graph.clear(sf::Color::Transparent);
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graph.setSmooth(true);
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unsigned int x = 2;
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unsigned int y = 4;
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unsigned int line = 0;
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for (auto const& density_entry : densities) {
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if (density_entry.has_collisions) {
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for (int col = 0; col < density_entry.density; ++col) {
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collision_square.setPosition(x+col*5,y+line*5);
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graph.draw(collision_square);
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}
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} else {
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for (int col = 0; col < std::min(8, density_entry.density); ++col) {
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normal_square.setPosition(x+col*5,y+line*5);
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graph.draw(normal_square);
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}
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}
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++line;
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}
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} |