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76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
/********************************************************************
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Minecraft: Pocket Edition - Decompilation Project
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Copyright (C) 2023 iProgramInCpp
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The following code is licensed under the BSD 1 clause license.
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SPDX-License-Identifier: BSD-1-Clause
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********************************************************************/
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#include "PolygonQuad.hpp"
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PolygonQuad::PolygonQuad(VertexPT* a, VertexPT* b, VertexPT* c, VertexPT* d)
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{
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m_verts[0] = *a;
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m_verts[1] = *b;
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m_verts[2] = *c;
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m_verts[3] = *d;
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}
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PolygonQuad::PolygonQuad(VertexPT* a, VertexPT* b, VertexPT* c, VertexPT* d, float u1, float v1, float u2, float v2)
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{
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m_verts[0] = *a;
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m_verts[1] = *b;
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m_verts[2] = *c;
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m_verts[3] = *d;
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m_verts[0].setUV(u2, v1);
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m_verts[1].setUV(u1, v1);
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m_verts[2].setUV(u1, v2);
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m_verts[3].setUV(u2, v2);
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}
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PolygonQuad::PolygonQuad(VertexPT* a, VertexPT* b, VertexPT* c, VertexPT* d, int u1i, int v1i, int u2i, int v2i)
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{
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constexpr float C_F1 = 0.0015625f, C_F2 = 0.003125f;
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m_verts[0] = *a;
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m_verts[1] = *b;
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m_verts[2] = *c;
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m_verts[3] = *d;
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m_verts[0].setUV(float(u2i) / 64.0f - C_F1, float(v1i) / 32.0f + C_F2);
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m_verts[1].setUV(float(u1i) / 64.0f + C_F1, float(v1i) / 32.0f + C_F2);
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m_verts[2].setUV(float(u1i) / 64.0f + C_F1, float(v2i) / 32.0f - C_F2);
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m_verts[3].setUV(float(u2i) / 64.0f - C_F1, float(v2i) / 32.0f - C_F2);
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}
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void PolygonQuad::flipNormal()
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{
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m_bFlipNormals = true;
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}
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void PolygonQuad::mirror()
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{
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std::swap(m_verts[0], m_verts[3]);
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std::swap(m_verts[1], m_verts[2]);
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}
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void PolygonQuad::render(Tesselator& t, float scale, int unused)
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{
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for (int i = 0; i < 4; i++)
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{
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VertexPT& v = m_verts[i];
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#ifdef ENH_ENTITY_SHADING
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t.color(m_color);
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#endif
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t.vertexUV(scale * v.x, scale * v.y, scale * v.z, v.u, v.v);
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}
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}
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#ifdef ENH_ENTITY_SHADING
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void PolygonQuad::setColor(float r, float g, float b)
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{
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int ru = int(255 * r), gu = int(255 * g), bu = int(255 * g);
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m_color = bu | (gu << 8) | (ru << 16);
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}
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#endif
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