Files
mcpe/source/client/model/Cube.cpp
iProgramInCpp 5882d2dc7f * Fix a bug regarding bottom face rendering?
N.B. It's not in the original game.  Not sure how they fixed it.
2023-12-05 21:11:40 +02:00

74 lines
2.5 KiB
C++

/********************************************************************
Minecraft: Pocket Edition - Decompilation Project
Copyright (C) 2023 iProgramInCpp
The following code is licensed under the BSD 1 clause license.
SPDX-License-Identifier: BSD-1-Clause
********************************************************************/
#include "Cube.hpp"
#include "renderer/GL/GL.hpp"
#define MUL_DEG_TO_RAD (180.0f / float(M_PI))
Cube::Cube(ModelPart* a2, int a3, int a4, float x, float y, float z, int d, int e, int f, float g)
{
float x1 = x, y1 = y, z1 = z;
float x2 = x + float(d), y2 = y + float(e), z2 = z + float(f);
field_29C = x1;
field_2A0 = y1;
field_2A4 = z1;
field_2A8 = x2;
field_2AC = y2;
field_2B0 = z2;
if (a2->field_18)
std::swap(x1, x2);
x1 -= g;
y1 -= g;
z1 -= g;
x2 += g;
y2 += g;
z2 += g;
m_verts[0] = VertexPT(x1, y1, z1, 0.0f, 0.0f);
m_verts[1] = VertexPT(x2, y1, z1, 0.0f, 8.0f);
m_verts[2] = VertexPT(x2, y2, z1, 8.0f, 8.0f);
m_verts[3] = VertexPT(x1, y2, z1, 8.0f, 0.0f);
m_verts[4] = VertexPT(x1, y1, z2, 0.0f, 0.0f);
m_verts[5] = VertexPT(x2, y1, z2, 0.0f, 8.0f);
m_verts[6] = VertexPT(x2, y2, z2, 8.0f, 8.0f);
m_verts[7] = VertexPT(x1, y2, z2, 8.0f, 0.0f);
int m = a3, n = a4;
m_faces[0] = PolygonQuad(&m_verts[5], &m_verts[1], &m_verts[2], &m_verts[6], m + f + d, n + f, m + f + d + f, n + f + e); // x2 face
m_faces[1] = PolygonQuad(&m_verts[0], &m_verts[4], &m_verts[7], &m_verts[3], m, n + f, m + f, n + f + e); // x1 face
m_faces[2] = PolygonQuad(&m_verts[5], &m_verts[4], &m_verts[0], &m_verts[1], m + f, n, m + f + d, n + f); // up face
m_faces[3] = PolygonQuad(&m_verts[7], &m_verts[6], &m_verts[2], &m_verts[3], m + f + d, n, m + f + d + d, n + f); // down face*
m_faces[4] = PolygonQuad(&m_verts[1], &m_verts[0], &m_verts[3], &m_verts[2], m + f, n + f, m + f + d, n + f + e); // z1 face
m_faces[5] = PolygonQuad(&m_verts[4], &m_verts[5], &m_verts[6], &m_verts[7], m + f + d + f, n + f, m + f + d + f + d, n + f + e); // z2 face
// *N.B. The original game specifies the vertex ordering as 2, 3, 7, 6, but that renders the back side of the cow upside down.
// This might not be proper form for the face, but we're disabling culling anyway so who cares.
if (a2->field_18)
{
for (int i = 0; i < 6; i++)
m_faces[i].mirror();
}
}
void Cube::compile(Tesselator& t, float scale)
{
for (int i = 0; i < 6; i++)
m_faces[i].render(t, scale);
}
void Cube::setId(const std::string& s)
{
m_id = s;
}