mirror of
https://github.com/noerw/concentric-clock
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34 lines
No EOL
1.3 KiB
C++
34 lines
No EOL
1.3 KiB
C++
#include "CircularSector.h"
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#include <iostream>//DEBUG
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namespace CClock {
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CircularSector::CircularSector() {}
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CircularSector::CircularSector(const double radius, const double thickness, const double angle, const sf::Color color, const unsigned int segmentCount) {
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//init Vector
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vertices_ = sf::VertexArray(sf::TrianglesStrip, 2 + segmentCount * 2);
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static int triangleCounter = 0;//DEBUG
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float x, y, tileAngle;
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//for each "segment" add two triangles
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for (unsigned int i = 0; i <= segmentCount; i+=2) {
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//compute angle
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tileAngle = i * (angle / segmentCount) + pi / 2;
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x = std::cos(tileAngle);
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y = std::sin(tileAngle);
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//inner point
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vertices_[i] = sf::Vertex(sf::Vector2f(x, y) * (float)(radius - thickness), color);
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//outer point
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vertices_[i+1] = sf::Vertex(sf::Vector2f(x, y) * (float)radius, sf::Color(160,160,160) * color);
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triangleCounter += 2;//DEBUG
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}
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triangleCounter -= 2;//DEBUG
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std::cout << triangleCounter << " triangles" << std::endl; //DEBUG
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}
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void CircularSector::draw(sf::RenderTarget& target, sf::RenderStates states) const {
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states.transform *= getTransform();
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target.draw(vertices_, states);
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}
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}; |