77 lines
2.3 KiB
C++
77 lines
2.3 KiB
C++
/*
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* =====================================================================================
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*
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* OpenMiner
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*
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* Copyright (C) 2018-2020 Unarelith, Quentin Bazin <openminer@unarelith.net>
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* Copyright (C) 2019-2020 the OpenMiner contributors (see CONTRIBUTORS.md)
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*
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* This file is part of OpenMiner.
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*
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* OpenMiner is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* OpenMiner is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with OpenMiner; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* =====================================================================================
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*/
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#include <gk/core/GameClock.hpp>
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#include <gk/gl/GLCheck.hpp>
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#include "CelestialObject.hpp"
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#include "Vertex.hpp"
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CelestialObject::CelestialObject() {
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updateVertexBuffer();
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}
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void CelestialObject::updateVertexBuffer() const {
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float width = 20.f;
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float height = 20.f;
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Vertex vertices[4] = {
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// Rectangle vertices
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{{0, width, 0, -1}},
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{{0, 0, 0, -1}},
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{{0, 0, height, -1}},
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{{0, width, height, -1}},
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};
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for (u8 i = 0 ; i < 4 ; ++i) {
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vertices[i].color[0] = m_color.r;
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vertices[i].color[1] = m_color.g;
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vertices[i].color[2] = m_color.b;
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vertices[i].color[3] = m_color.a;
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}
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gk::VertexBuffer::bind(&m_vbo);
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m_vbo.setData(sizeof(vertices), vertices, GL_STATIC_DRAW);
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gk::VertexBuffer::bind(nullptr);
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}
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void CelestialObject::draw(gk::RenderTarget &target, gk::RenderStates states) const {
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states.transform.rotate(-fmod(gk::GameClock::getInstance().getTicks() * 4 / 1000.f, 360), {0, 1, 0});
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states.transform *= getTransform();
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states.vertexAttributes = VertexAttribute::All;
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// glCheck(glEnable(GL_CULL_FACE));
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// glCheck(glEnable(GL_DEPTH_TEST));
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static const GLubyte indices[] = {
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0, 1, 3,
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3, 1, 2
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};
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target.drawElements(m_vbo, GL_TRIANGLES, 6, GL_UNSIGNED_BYTE, indices, states);
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}
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