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render.cpp
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/**************************************************************************
* 3to4++ - https://github.com/rayzchen/3to4++
*-------------------------------------------------------------------------
* Copyright 2024 Ray Chen
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**************************************************************************/
#include <glad/gl.h>
#include "render.h"
#include "control.h"
#include "constants.h"
#include <iostream>
#include <array>
#include <string>
#include <algorithm>
void mat4x4_scale_pos(mat4x4 M, float k) {
for (int i = 0; i < 3; i++) {
M[3][i] *= k;
}
}
float smoothstep(float t) {
return t * t * (3 - 2 * t);
}
PieceMesh::PieceMesh(PieceType type) {
length1 = type.triangles.size();
length2 = type.edges.size();
normals = type.normals;
glGenBuffers(1, &vbo);
glGenVertexArrays(1, &faceVao);
glGenVertexArrays(1, &edgeVao);
glGenBuffers(1, &faceEbo);
glGenBuffers(1, &edgeEbo);
glBindVertexArray(faceVao);
glBindBuffer(GL_ARRAY_BUFFER, vbo);
glBufferData(GL_ARRAY_BUFFER, type.vertices.size() * sizeof(float), type.vertices.data(), GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, faceEbo);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, type.triangles.size() * sizeof(unsigned int), type.triangles.data(), GL_STATIC_DRAW);
// 3 floats for XYZ, 1 float for color
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 4 * sizeof(float), (void*)0);
glEnableVertexAttribArray(0);
glVertexAttribPointer(1, 1, GL_FLOAT, GL_FALSE, 4 * sizeof(float), (void*)(3 * sizeof(float)));
glEnableVertexAttribArray(1);
glBindVertexArray(edgeVao);
glBindBuffer(GL_ARRAY_BUFFER, vbo);
glBufferData(GL_ARRAY_BUFFER, type.vertices.size() * sizeof(float), type.vertices.data(), GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, edgeEbo);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, type.edges.size() * sizeof(unsigned int), type.edges.data(), GL_STATIC_DRAW);
// 3 floats for XYZ, 1 float for color
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 4 * sizeof(float), (void*)0);
glEnableVertexAttribArray(0);
glVertexAttribPointer(1, 1, GL_FLOAT, GL_FALSE, 4 * sizeof(float), (void*)(3 * sizeof(float)));
glEnableVertexAttribArray(1);
}
void PieceMesh::renderFaces(Shader* shader) {
shader->setVec3v("normals", normals);
glBindVertexArray(faceVao);
glDrawElements(GL_TRIANGLES, length1, GL_UNSIGNED_INT, 0);
}
void PieceMesh::renderEdges() {
glBindVertexArray(edgeVao);
glDrawElements(GL_LINES, length2, GL_UNSIGNED_INT, 0);
}
Shader::Shader(const char *vertex, const char *fragment) {
unsigned int vertexShader = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(vertexShader, 1, &vertex, NULL);
glCompileShader(vertexShader);
int success;
char infoLog[1024];
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &success);
if(!success) {
glGetShaderInfoLog(vertexShader, 1024, NULL, infoLog);
showError(infoLog);
}
unsigned int fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(fragmentShader, 1, &fragment, NULL);
glCompileShader(fragmentShader);
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &success);
if(!success) {
glGetShaderInfoLog(fragmentShader, 1024, NULL, infoLog);
showError(infoLog);
}
program = glCreateProgram();
glAttachShader(program, vertexShader);
glAttachShader(program, fragmentShader);
glLinkProgram(program);
glGetProgramiv(program, GL_LINK_STATUS, &success);
if(!success) {
glGetProgramInfoLog(program, 1024, NULL, infoLog);
showError(infoLog);
}
glDeleteShader(vertexShader);
glDeleteShader(fragmentShader);
}
void Shader::use() {
glUseProgram(program);
}
void Shader::setInt(std::string loc, int value) {
int shaderLocation = glGetUniformLocation(program, loc.c_str());
glUniform1i(shaderLocation, value);
}
void Shader::setFloat(std::string loc, float value) {
int shaderLocation = glGetUniformLocation(program, loc.c_str());
glUniform1f(shaderLocation, value);
}
void Shader::setVec3(std::string loc, vec3 vector) {
int shaderLocation = glGetUniformLocation(program, loc.c_str());
glUniform3fv(shaderLocation, 1, vector);
}
void Shader::setMat4(std::string loc, mat4x4 matrix) {
int shaderLocation = glGetUniformLocation(program, loc.c_str());
glUniformMatrix4fv(shaderLocation, 1, GL_FALSE, matrix[0]);
}
void Shader::setVec3v(std::string loc, std::vector<float> vectors) {
int shaderLocation = glGetUniformLocation(program, loc.c_str());
glUniform3fv(shaderLocation, vectors.size() / 3, vectors.data());
}
Shader::~Shader() {
glDeleteProgram(program);
}
PuzzleRenderer::PuzzleRenderer(Puzzle *puzzle) {
this->puzzle = puzzle;
mousePressed = false;
spacing = 0.0f;
sensitivity = 0.01f;
animating = false;
animationProgress = 0.0f;
animationSpeed = 4.0f;
mat4x4_identity(model);
meshes[0] = new PieceMesh(Pieces::mesh1c);
meshes[1] = new PieceMesh(Pieces::mesh2c);
meshes[2] = new PieceMesh(Pieces::mesh3c);
meshes[3] = new PieceMesh(Pieces::mesh4c);
}
PuzzleRenderer::~PuzzleRenderer() {
for (int i = 0; i < 4; i++) {
delete meshes[i];
}
}
float PuzzleRenderer::getSpacing() {
return spacing;
}
void PuzzleRenderer::setSpacing(float spacing) {
this->spacing = spacing;
if (this->spacing < 0.0f) {
this->spacing = 0.0f;
} else if (this->spacing > 1.5f) {
this->spacing = 1.5f;
}
}
void PuzzleRenderer::render1c(Shader *shader, const std::array<float, 3> pos, Color color) {
shader->use();
shader->setVec3("pieceColors[0]", Pieces::colors[color]);
float scale = getSpacing() + 1.0f;
mat4x4 model;
mat4x4_dup(model, this->model);
mat4x4_translate_in_place(model, pos[0], pos[1], pos[2]);
mat4x4_scale_pos(model, scale);
shader->setMat4("model", model);
shader->setInt("border", 0);
meshes[0]->renderFaces(shader);
shader->setInt("border", 1);
meshes[0]->renderEdges();
}
void PuzzleRenderer::render2c(Shader *shader, const std::array<float, 3> pos, const std::array<Color, 2> colors, CellLocation dir) {
shader->use();
shader->setVec3("pieceColors[0]", Pieces::colors[colors[0]]);
shader->setVec3("pieceColors[1]", Pieces::colors[colors[1]]);
float scale = getSpacing() + 1.0f;
mat4x4 model;
mat4x4_dup(model, this->model);
mat4x4_translate_in_place(model, pos[0], pos[1], pos[2]);
mat4x4_scale_pos(model, scale);
switch (dir) {
case UP: break;
case DOWN: mat4x4_rotate(model, model, 1, 0, 0, M_PI); break;
case RIGHT: mat4x4_rotate(model, model, 0, 0, 1, -M_PI_2); break;
case LEFT: mat4x4_rotate(model, model, 0, 0, 1, M_PI_2); break;
case FRONT: mat4x4_rotate(model, model, 1, 0, 0, M_PI_2); break;
case BACK: mat4x4_rotate(model, model, 1, 0, 0, -M_PI_2); break;
case IN:
case OUT:
return;
}
shader->setMat4("model", model);
shader->setInt("border", 0);
meshes[1]->renderFaces(shader);
shader->setInt("border", 1);
meshes[1]->renderEdges();
}
void PuzzleRenderer::render3c(Shader *shader, const std::array<float, 3> pos, const std::array<Color, 3> colors) {
shader->use();
shader->setVec3("pieceColors[0]", Pieces::colors[colors[0]]);
shader->setVec3("pieceColors[1]", Pieces::colors[colors[1]]);
shader->setVec3("pieceColors[2]", Pieces::colors[colors[2]]);
float scale = getSpacing() + 1.0f;
mat4x4 model;
mat4x4_dup(model, this->model);
mat4x4_translate_in_place(model, pos[0], pos[1], pos[2]);
mat4x4_scale_pos(model, scale);
shader->setMat4("model", model);
shader->setInt("border", 0);
meshes[2]->renderFaces(shader);
shader->setInt("border", 1);
meshes[2]->renderEdges();
}
void PuzzleRenderer::render4c(Shader *shader, const std::array<float, 3> pos, const std::array<Color, 4> colors, int orientation) {
shader->use();
shader->setVec3("pieceColors[0]", Pieces::colors[colors[0]]);
shader->setVec3("pieceColors[1]", Pieces::colors[colors[1]]);
shader->setVec3("pieceColors[2]", Pieces::colors[colors[2]]);
shader->setVec3("pieceColors[3]", Pieces::colors[colors[3]]);
float scale = getSpacing() + 1.0f;
mat4x4 model;
mat4x4_dup(model, this->model);
mat4x4_translate_in_place(model, pos[0], pos[1], pos[2]);
mat4x4_scale_pos(model, scale);
if (orientation > 3) {
orientation -= 4;
mat4x4_rotate(model, model, 1, 0, 0, M_PI);
mat4x4_rotate(model, model, 0, 1, 0, -M_PI_2 * (orientation - 1));
} else {
mat4x4_rotate(model, model, 0, 1, 0, M_PI_2 * orientation);
}
shader->setMat4("model", model);
shader->setInt("border", 0);
meshes[3]->renderFaces(shader);
shader->setInt("border", 1);
meshes[3]->renderEdges();
}
void PuzzleRenderer::setMousePressed(bool pressed) {
mousePressed = pressed;
}
bool PuzzleRenderer::updateMouse(GLFWwindow* window, double dt) {
// in case mousePressed flips
bool updated;
if (mousePressed) {
double curX, curY;
glfwGetCursorPos(window, &curX, &curY);
if (lastY != -1.0f) {
setSpacing(spacing - (curY - lastY) * sensitivity);
}
updated = (curY - lastY) != 0;
lastY = curY;
} else {
updated = (lastY != -1.0f);
lastY = -1.0f;
}
return updated;
}
bool checkFilter(std::array<int, 2> filter, std::array<int, 2> pos) {
return ((filter[0] == -1 || filter[0] == pos[0] + 1) &&
(filter[1] == -1 || filter[1] == pos[1] + 1));
}
bool checkFilter(std::array<int, 3> filter, std::array<int, 3> pos) {
return ((filter[0] == -1 || filter[0] == pos[0] + 1) &&
(filter[1] == -1 || filter[1] == pos[1] + 1) &&
(filter[2] == -1 || filter[2] == pos[2] + 1));
}
void PuzzleRenderer::renderCell(Shader *shader, const std::array<std::array<std::array<Piece, 3>, 3>, 3>& cell, float offset, std::array<int, 3> sliceFilter) {
if (checkFilter(sliceFilter, {0, 0, 0})) {
render1c(shader, {offset, 0, 0}, cell[1][1][1].a);
}
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 2; j++) {
std::array<int, 3> pos = {0, 0, 0};
pos[i] += j * -2 + 1;
if (checkFilter(sliceFilter, pos)) {
Piece piece = cell[pos[0] + 1][pos[1] + 1][pos[2] + 1];
CellLocation orientation = (CellLocation)(i * 2 + j + 2);
render2c(shader, {(float)pos[0] + offset, (float)pos[1], (float)pos[2]}, {piece.a, piece.b}, orientation);
}
}
}
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 2; j++) {
for (int k = 0; k < 2; k++) {
std::array<int, 3> pos = {0, 0, 0};
pos[i] = k * -2 + 1;
pos[(i + 1) % 3] = j * -2 + 1;
if (checkFilter(sliceFilter, pos)) {
Piece piece = cell[pos[0] + 1][pos[1] + 1][pos[2] + 1];
render3c(shader, {(float)pos[0] + offset, (float)pos[1], (float)pos[2]}, {piece.a, piece.b, piece.c});
}
}
}
}
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 2; j++) {
for (int k = 0; k < 2; k++) {
std::array<int, 3> pos = {i * -2 + 1, j * -2 + 1, k * -2 + 1};
int orientation = (i + k) + 2*i*(1 - k);
if (checkFilter(sliceFilter, pos)) {
Piece piece = cell[pos[0] + 1][pos[1] + 1][pos[2] + 1];
render4c(shader, {(float)pos[0] + offset, (float)pos[1], (float)pos[2]}, {piece.a, piece.b, piece.c, piece.d}, 4*j + orientation);
}
}
}
}
}
void PuzzleRenderer::renderSlice(Shader *shader, const std::array<std::array<Piece, 3>, 3>& slice, float offset, std::array<int, 2> stripFilter) {
if (checkFilter(stripFilter, {0, 0})) {
render1c(shader, {offset, 0, 0}, slice[1][1].a);
}
for (int i = 1; i < 3; i++) {
for (int j = 0; j < 2; j++) {
std::array<int, 3> pos = {0, 0, 0};
pos[i] += j * -2 + 1;
if (checkFilter(stripFilter, {pos[1], pos[2]})) {
Piece piece = slice[pos[1] + 1][pos[2] + 1];
CellLocation orientation = (CellLocation)(i * 2 + j + 2);
render2c(shader, {(float)pos[0] + offset, (float)pos[1], (float)pos[2]}, {piece.a, piece.b}, orientation);
}
}
}
for (int j = 0; j < 2; j++) {
for (int k = 0; k < 2; k++) {
std::array<int, 3> pos = {0, 0, 0};
pos[1] = k * -2 + 1;
pos[2] = j * -2 + 1;
if (checkFilter(stripFilter, {pos[1], pos[2]})) {
Piece piece = slice[pos[1] + 1][pos[2] + 1];
render3c(shader, {(float)pos[0] + offset, (float)pos[1], (float)pos[2]}, {piece.a, piece.b, piece.c});
}
}
}
}
void PuzzleRenderer::renderMiddleSlice(Shader *shader, bool addOffsetX, float offsetYZ, CellLocation filter) {
float offset = (addOffsetX ? -0.5 * puzzle->outerSlicePos : 0.0f) + 2 * puzzle->middleSlicePos;
if (filter == UP || filter == (CellLocation)-1) {
render1c(shader, {offset, 2 + offsetYZ, 0}, puzzle->topCell.a);
}
if (filter == DOWN || filter == (CellLocation)-1) {
render1c(shader, {offset, -2 - offsetYZ, 0}, puzzle->bottomCell.a);
}
if (filter == FRONT || filter == (CellLocation)-1) {
render1c(shader, {offset, 0, 2 + offsetYZ}, puzzle->frontCell[1].a);
}
if (filter == BACK || filter == (CellLocation)-1) {
render1c(shader, {offset, 0, -2 - offsetYZ}, puzzle->backCell[1].a);
}
if (puzzle->middleSliceDir == FRONT) {
if (filter == FRONT || filter == (CellLocation)-1) {
render2c(shader, {offset, 1, 2 + offsetYZ}, {puzzle->frontCell[2].a, puzzle->frontCell[2].b}, UP);
render2c(shader, {offset, -1, 2 + offsetYZ}, {puzzle->frontCell[0].a, puzzle->frontCell[0].b}, DOWN);
}
if (filter == BACK || filter == (CellLocation)-1) {
render2c(shader, {offset, 1, -2 - offsetYZ}, {puzzle->backCell[2].a, puzzle->backCell[2].b}, UP);
render2c(shader, {offset, -1, -2 - offsetYZ}, {puzzle->backCell[0].a, puzzle->backCell[0].b}, DOWN);
}
} else {
if (filter == UP || filter == (CellLocation)-1) {
render2c(shader, {offset, 2 + offsetYZ, 1}, {puzzle->frontCell[2].a, puzzle->frontCell[2].b}, BACK);
render2c(shader, {offset, 2 + offsetYZ, -1}, {puzzle->backCell[2].a, puzzle->backCell[2].b}, FRONT);
}
if (filter == DOWN || filter == (CellLocation)-1) {
render2c(shader, {offset, -2 - offsetYZ, -1}, {puzzle->backCell[0].a, puzzle->backCell[0].b}, FRONT);
render2c(shader, {offset, -2 - offsetYZ, 1}, {puzzle->frontCell[0].a, puzzle->frontCell[0].b}, BACK);
}
}
}
void PuzzleRenderer::renderPuzzle(Shader *shader) {
glLineWidth(2);
if (pendingMoves.size() == 0) {
renderNoAnimation(shader);
} else if (pendingMoves.front().type == TURN) {
MoveEntry move = pendingMoves.front();
switch (move.cell) {
case LEFT: renderLeftAnimation(shader, move.direction); break;
case RIGHT: renderRightAnimation(shader, move.direction); break;
case IN: renderInnerAnimation(shader, move.direction); break;
case OUT: renderOuterAnimation(shader, move.direction); break;
case FRONT: renderFrontBackAnimation(shader, FRONT, move.direction); break;
case BACK: renderFrontBackAnimation(shader, BACK, move.direction); break;
case UP: renderUpDownAnimation(shader, UP, move.direction); break;
case DOWN: renderUpDownAnimation(shader, DOWN, move.direction); break;
}
} else if (pendingMoves.front().type == ROTATE) {
renderRotateAnimation(shader, pendingMoves.front().direction);
} else if (pendingMoves.front().type == GYRO) {
MoveEntry move = pendingMoves.front();
switch (move.cell) {
case LEFT:
case RIGHT:
renderGyroXAnimation(shader, move.cell);
break;
case UP:
case DOWN:
renderGyroYAnimation(shader, move.cell);
break;
case FRONT:
case BACK:
renderGyroZAnimation(shader, move.cell);
break;
default:
return;
}
} else if (pendingMoves.front().type == GYRO_OUTER) {
renderOuterGyroAnimation(shader, pendingMoves.front().location);
} else if (pendingMoves.front().type == GYRO_MIDDLE) {
renderPGyroAnimation(shader, pendingMoves.front().location);
}
}
void PuzzleRenderer::renderNoAnimation(Shader *shader) {
float offset = puzzle->outerSlicePos * -0.5f;
mat4x4_identity(model);
renderSlice(shader, puzzle->outerSlice, 3.5f * puzzle->outerSlicePos);
renderCell(shader, puzzle->leftCell, -2.0f + offset);
renderCell(shader, puzzle->rightCell, 2.0f + offset);
renderSlice(shader, puzzle->innerSlice, offset);
renderMiddleSlice(shader, true, 0.0f);
}
void PuzzleRenderer::renderLeftAnimation(Shader *shader, RotateDirection direction) {
if (puzzle->outerSlicePos == 1) {
float offset = 2 * animationProgress * (animationProgress - 1.0f);
std::array<float, 3> axis = {0, 0, 0};
axis[(int)direction / 2] = -1 + (int)direction % 2 * 2;
mat4x4_translate(model, -2.5f + offset, 0, 0);
mat4x4_rotate(model, model, axis[0], axis[1], axis[2], M_PI_2 * animationProgress);
renderCell(shader, puzzle->leftCell, 0.0f);
mat4x4_identity(model);
if (puzzle->middleSlicePos == -1) renderMiddleSlice(shader, true, -offset);
mat4x4_translate(model, -offset, 0, 0);
renderCell(shader, puzzle->rightCell, 1.5f);
renderSlice(shader, puzzle->innerSlice, -0.5f);
renderSlice(shader, puzzle->outerSlice, 3.5f);
if (puzzle->middleSlicePos >= 0) renderMiddleSlice(shader, true, 0.0f);
} else {
float offset = 4 * animationProgress * (animationProgress - 1.0f);
std::array<float, 3> axis = {0, 0, 0};
axis[(int)direction / 2] = -1 + (int)direction % 2 * 2;
mat4x4_translate(model, -1.5f, 0, 0);
mat4x4_rotate(model, model, axis[0], axis[1], axis[2], M_PI_2 * animationProgress);
renderCell(shader, puzzle->leftCell, 0.0f);
mat4x4_identity(model);
if (puzzle->middleSlicePos == -1) renderMiddleSlice(shader, true, -offset);
mat4x4_translate(model, offset, 0, 0);
renderSlice(shader, puzzle->outerSlice, -3.5f);
if (puzzle->middleSlicePos == -2) renderMiddleSlice(shader, true, 0.0f);
mat4x4_translate(model, -offset, 0, 0);
renderCell(shader, puzzle->rightCell, 2.5f);
renderSlice(shader, puzzle->innerSlice, 0.5f);
if (puzzle->middleSlicePos >= 0) renderMiddleSlice(shader, true, 0.0f);
}
}
void PuzzleRenderer::renderRightAnimation(Shader *shader, RotateDirection direction) {
if (puzzle->outerSlicePos == -1) {
float offset = 2 * animationProgress * (animationProgress - 1.0f);
std::array<float, 3> axis = {0, 0, 0};
axis[(int)direction / 2] = -1 + (int)direction % 2 * 2;
mat4x4_translate(model, 2.5f - offset, 0, 0);
mat4x4_rotate(model, model, axis[0], axis[1], axis[2], M_PI_2 * animationProgress);
renderCell(shader, puzzle->rightCell, 0.0f);
mat4x4_identity(model);
if (puzzle->middleSlicePos == 1) renderMiddleSlice(shader, true, -offset);
mat4x4_translate(model, offset, 0, 0);
renderCell(shader, puzzle->leftCell, -1.5f);
renderSlice(shader, puzzle->innerSlice, 0.5f);
renderSlice(shader, puzzle->outerSlice, -3.5f);
if (puzzle->middleSlicePos <= 0) renderMiddleSlice(shader, true, 0.0f);
} else {
float offset = 4 * animationProgress * (animationProgress - 1.0f);
std::array<float, 3> axis = {0, 0, 0};
axis[(int)direction / 2] = -1 + (int)direction % 2 * 2;
mat4x4_translate(model, 1.5f, 0, 0);
mat4x4_rotate(model, model, axis[0], axis[1], axis[2], M_PI_2 * animationProgress);
renderCell(shader, puzzle->rightCell, 0.0f);
mat4x4_identity(model);
if (puzzle->middleSlicePos == 1) renderMiddleSlice(shader, true, -offset);
mat4x4_translate(model, -offset, 0, 0);
renderSlice(shader, puzzle->outerSlice, 3.5f);
if (puzzle->middleSlicePos == 2) renderMiddleSlice(shader, true, 0.0f);
mat4x4_translate(model, offset, 0, 0);
renderCell(shader, puzzle->leftCell, -2.5f);
renderSlice(shader, puzzle->innerSlice, -0.5f);
if (puzzle->middleSlicePos <= 0) renderMiddleSlice(shader, true, 0.0f);
}
}
void PuzzleRenderer::renderInnerAnimation(Shader *shader, RotateDirection direction) {
float offset = puzzle->outerSlicePos * -0.5f;
mat4x4_identity(model);
renderSlice(shader, puzzle->outerSlice, 3.5f * puzzle->outerSlicePos);
renderCell(shader, puzzle->leftCell, -2.0f + offset, {0, -1, -1});
renderCell(shader, puzzle->leftCell, -2.0f + offset, {1, -1, -1});
renderCell(shader, puzzle->rightCell, 2.0f + offset, {1, -1, -1});
renderCell(shader, puzzle->rightCell, 2.0f + offset, {2, -1, -1});
float offsetYZ = -4 * animationProgress * (animationProgress - 1.0f);
if (puzzle->middleSlicePos == 0) {
renderMiddleSlice(shader, true, offsetYZ);
} else {
renderMiddleSlice(shader, true, 0.0f);
}
int parity = (int)direction % 2 * 2 - 1;
mat4x4_rotate(model, model, 1, 0, 0, M_PI_2 * animationProgress * parity);
renderSlice(shader, puzzle->innerSlice, offset);
renderCell(shader, puzzle->leftCell, -2.0f + offset, {2, -1, -1});
renderCell(shader, puzzle->rightCell, 2.0f + offset, {0, -1, -1});
}
void PuzzleRenderer::renderOuterAnimation(Shader *shader, RotateDirection direction) {
float offset = puzzle->outerSlicePos * -0.5f;
mat4x4_identity(model);
renderSlice(shader, puzzle->innerSlice, offset);
renderCell(shader, puzzle->leftCell, -2.0f + offset, {1, -1, -1});
renderCell(shader, puzzle->leftCell, -2.0f + offset, {2, -1, -1});
renderCell(shader, puzzle->rightCell, 2.0f + offset, {0, -1, -1});
renderCell(shader, puzzle->rightCell, 2.0f + offset, {1, -1, -1});
float offsetYZ = -4 * animationProgress * (animationProgress - 1.0f);
if (puzzle->middleSlicePos == 2 * puzzle->outerSlicePos) {
renderMiddleSlice(shader, true, offsetYZ);
} else {
renderMiddleSlice(shader, true, 0.0f);
}
int parity = (int)direction % 2 * 2 - 1;
mat4x4_rotate(model, model, 1, 0, 0, M_PI_2 * animationProgress * parity);
renderSlice(shader, puzzle->outerSlice, 3.5f * puzzle->outerSlicePos);
renderCell(shader, puzzle->leftCell, -2.0f + offset, {0, -1, -1});
renderCell(shader, puzzle->rightCell, 2.0f + offset, {2, -1, -1});
}
void PuzzleRenderer::renderFrontBackAnimation(Shader *shader, CellLocation cell, RotateDirection direction) {
int orientation = 1 - (int)cell % 2 * 2;
float offset = puzzle->outerSlicePos * -0.5f;
mat4x4_identity(model);
for (int i = 0; i < 3; i++) {
if (i == 1 + orientation) continue;
renderSlice(shader, puzzle->outerSlice, 3.5f * puzzle->outerSlicePos, {-1, i});
renderCell(shader, puzzle->leftCell, -2.0f + offset, {-1, -1, i});
renderCell(shader, puzzle->rightCell, 2.0f + offset, {-1, -1, i});
renderSlice(shader, puzzle->innerSlice, offset, {-1, i});
}
renderMiddleSlice(shader, true, 0.0f, (CellLocation)((int)cell / 2 * 2 + 1 - int(cell) % 2));
renderMiddleSlice(shader, true, 0.0f, UP);
renderMiddleSlice(shader, true, 0.0f, DOWN);
if (animationProgress < 1.0f) {
float offsetZ = orientation * -4 * animationProgress * (animationProgress - 1.0f);
float axis = (int)direction % 2 * 2 - 1;
mat4x4_translate(model, -0.5f * puzzle->outerSlicePos, 0, offsetZ);
mat4x4_rotate(model, model, 0, 0, axis, M_PI * animationProgress);
mat4x4_translate_in_place(model, 0.5f * puzzle->outerSlicePos, 0, 0);
renderSlice(shader, puzzle->outerSlice, 3.5f * puzzle->outerSlicePos, {-1, 1 + orientation});
renderCell(shader, puzzle->leftCell, -2.0f + offset, {-1, -1, 1 + orientation});
renderCell(shader, puzzle->rightCell, 2.0f + offset, {-1, -1, 1 + orientation});
renderSlice(shader, puzzle->innerSlice, offset, {-1, 1 + orientation});
renderMiddleSlice(shader, true, 0.0f, cell);
} else {
mat4x4 base;
mat4x4_translate(base, -0.5f * puzzle->outerSlicePos, 0, 0);
mat4x4_rotate(base, base, 0, 0, 1, M_PI);
mat4x4_translate_in_place(base, 0.5f * puzzle->outerSlicePos, 0, 0);
mat4x4_dup(model, base);
renderCell(shader, puzzle->leftCell, -2.0f + offset, {-1, -1, 1 + orientation});
renderCell(shader, puzzle->rightCell, 2.0f + offset, {-1, -1, 1 + orientation});
renderSlice(shader, puzzle->innerSlice, offset, {-1, 1 + orientation});
if (puzzle->middleSlicePos == 0) {
renderMiddleSlice(shader, true, 0, cell);
}
float offsetX = smoothstep(animationProgress - 1.0f);
float offsetZ = 16 * std::pow(animationProgress - 1.0f, 2) * std::pow(animationProgress - 2.0f, 2);
offsetZ *= orientation;
if (std::abs(puzzle->middleSlicePos) == 1) {
mat4x4_dup(model, base);
mat4x4_translate_in_place(model, -4 * puzzle->middleSlicePos * offsetX, 0, offsetZ);
renderMiddleSlice(shader, true, 0, cell);
}
mat4x4_dup(model, base);
mat4x4_translate_in_place(model, -8 * offsetX * puzzle->outerSlicePos, 0, 4 * offsetZ);
renderSlice(shader, puzzle->outerSlice, 3.5f * puzzle->outerSlicePos, {-1, 1 + orientation});
if (puzzle->middleSlicePos == 2 * puzzle->outerSlicePos) {
renderMiddleSlice(shader, true, 0, cell);
}
}
}
void PuzzleRenderer::renderUpDownAnimation(Shader *shader, CellLocation cell, RotateDirection direction) {
int orientation = 1 - (int)cell % 2 * 2;
float offset = puzzle->outerSlicePos * -0.5f;
mat4x4_identity(model);
for (int i = 0; i < 3; i++) {
if (i == 1 + orientation) continue;
renderSlice(shader, puzzle->outerSlice, 3.5f * puzzle->outerSlicePos, {i, -1});
renderCell(shader, puzzle->leftCell, -2.0f + offset, {-1, i, -1});
renderCell(shader, puzzle->rightCell, 2.0f + offset, {-1, i, -1});
renderSlice(shader, puzzle->innerSlice, offset, {i, -1});
}
renderMiddleSlice(shader, true, 0.0f, (CellLocation)((int)cell / 2 * 2 + 1 - int(cell) % 2));
renderMiddleSlice(shader, true, 0.0f, FRONT);
renderMiddleSlice(shader, true, 0.0f, BACK);
if (animationProgress < 1.0f) {
float offsetY = orientation * -4 * animationProgress * (animationProgress - 1.0f);
float axis = (int)direction % 2 * 2 - 1;
mat4x4_translate(model, -0.5f * puzzle->outerSlicePos, offsetY, 0);
mat4x4_rotate(model, model, 0, axis, 0, M_PI * animationProgress);
mat4x4_translate_in_place(model, 0.5f * puzzle->outerSlicePos, 0, 0);
renderSlice(shader, puzzle->outerSlice, 3.5f * puzzle->outerSlicePos, {1 + orientation, -1});
renderCell(shader, puzzle->leftCell, -2.0f + offset, {-1, 1 + orientation, -1});
renderCell(shader, puzzle->rightCell, 2.0f + offset, {-1, 1 + orientation, -1});
renderSlice(shader, puzzle->innerSlice, offset, {1 + orientation, -1});
renderMiddleSlice(shader, true, 0.0f, cell);
} else {
mat4x4 base;
mat4x4_translate(base, -0.5f * puzzle->outerSlicePos, 0, 0);
mat4x4_rotate(base, base, 0, 1, 0, M_PI);
mat4x4_translate_in_place(base, 0.5f * puzzle->outerSlicePos, 0, 0);
mat4x4_dup(model, base);
renderCell(shader, puzzle->leftCell, -2.0f + offset, {-1, 1 + orientation, -1});
renderCell(shader, puzzle->rightCell, 2.0f + offset, {-1, 1 + orientation, -1});
renderSlice(shader, puzzle->innerSlice, offset, {1 + orientation, -1});
if (puzzle->middleSlicePos == 0) {
renderMiddleSlice(shader, true, 0, cell);
}
float offsetX = smoothstep(animationProgress - 1.0f);
float offsetY = 16 * std::pow(animationProgress - 1.0f, 2) * std::pow(animationProgress - 2.0f, 2);
offsetY *= orientation;
if (std::abs(puzzle->middleSlicePos) == 1) {
mat4x4_dup(model, base);
mat4x4_translate_in_place(model, -4 * puzzle->middleSlicePos * offsetX, offsetY, 0);
renderMiddleSlice(shader, true, 0, cell);
}
mat4x4_dup(model, base);
mat4x4_translate_in_place(model, -8 * offsetX * puzzle->outerSlicePos, 4 * offsetY, 0);
renderSlice(shader, puzzle->outerSlice, 3.5f * puzzle->outerSlicePos, {1 + orientation, -1});
if (puzzle->middleSlicePos == 2 * puzzle->outerSlicePos) {
renderMiddleSlice(shader, true, 0, cell);
}
}
}
void PuzzleRenderer::renderRotateAnimation(Shader *shader, RotateDirection direction) {
int parity = (int)direction * 2 - 1;
mat4x4_identity(model);
mat4x4_rotate(model, model, 1, 0, 0, parity * M_PI_2 * animationProgress);
float offset = puzzle->outerSlicePos * -0.5f;
renderSlice(shader, puzzle->outerSlice, 3.5f * puzzle->outerSlicePos);
renderCell(shader, puzzle->leftCell, -2.0f + offset);
renderCell(shader, puzzle->rightCell, 2.0f + offset);
renderSlice(shader, puzzle->innerSlice, offset);
renderMiddleSlice(shader, true, 0.0f);
}
void PuzzleRenderer::renderGyroXAnimation(Shader *shader, CellLocation cell) {
int mainDir = (int)cell % 2 * -2 + 1;
int moveSlice = (1 - mainDir * puzzle->outerSlicePos) / 2;
std::array<CellData*, 2> cells = {&puzzle->leftCell, &puzzle->rightCell};
int left = (int)cell % 2;
int right = 1 - left;
if (animationProgress < 2.0f) {
int middleMove = -1 + 3 * moveSlice;
float mainOffsetX, mainOffsetY, slicePosX, slicePosY;
if (animationProgress < 0.5f) {
slicePosX = -0.5f * puzzle->outerSlicePos - 2 * mainDir;
slicePosY = -16 * animationProgress * (animationProgress - 1.0f);
mainOffsetX = -0.5f * puzzle->outerSlicePos;
mainOffsetY = 2 * animationProgress * (animationProgress - 1.0f);
} else if (animationProgress < 1.5f) {
slicePosX = -0.5f * puzzle->outerSlicePos + mainDir * (smoothstep(animationProgress - 0.5f) * 6 - 2);
slicePosY = 4.0f;
mainOffsetX = -0.5f * puzzle->outerSlicePos - mainDir * smoothstep(animationProgress - 0.5f) * 2;
mainOffsetY = -0.5f;
} else {
slicePosX = -0.5f * puzzle->outerSlicePos + 4 * mainDir;
slicePosY = -16 * (animationProgress - 1.0f) * (animationProgress - 2.0f);
mainOffsetX = -0.5f * puzzle->outerSlicePos - 2 * mainDir;
mainOffsetY = 2 * (animationProgress - 1.0f) * (animationProgress - 2.0f);
}
mat4x4_translate(model, slicePosX, slicePosY, 0);
renderCell(shader, *cells[left], 0.0f, {1 - mainDir, -1, -1});
if (mainDir * puzzle->outerSlicePos == 1) {
renderCell(shader, *cells[left], 0.0f, {1, -1, -1});
} else {
renderSlice(shader, puzzle->outerSlice, 2.0f * puzzle->outerSlicePos);
}
// Undo X offset made by renderMiddleSlice
float reset = -2 * puzzle->middleSlicePos;
mat4x4_translate_in_place(model, reset - mainDir + puzzle->outerSlicePos, 0, 0);
if (puzzle->middleSlicePos == middleMove * puzzle->outerSlicePos) renderMiddleSlice(shader, false, 0.0f);
mat4x4_translate(model, mainOffsetX, mainOffsetY, 0);
if (mainDir * puzzle->outerSlicePos == 1) {
renderSlice(shader, puzzle->outerSlice, 4.0f * puzzle->outerSlicePos);
} else {
renderCell(shader, *cells[left], 2.0f * puzzle->outerSlicePos, {1, -1, -1});
}
renderCell(shader, *cells[left], -2.0f * mainDir, {1 + mainDir, -1, -1});
renderCell(shader, *cells[right], 2.0f * mainDir);
renderSlice(shader, puzzle->innerSlice, 0.0f);
if (puzzle->middleSlicePos != middleMove * puzzle->outerSlicePos) renderMiddleSlice(shader, false, 0.0f);
} else {
float offset = (cosf(M_PI * (animationProgress + 1.0f)) + 1) / 8;
mat4x4_identity(model);
std::array<SliceData*, 8> slices = {
&(*cells[left])[2], &puzzle->innerSlice, &(*cells[right])[0], &(*cells[right])[1],
&(*cells[right])[2], &puzzle->outerSlice, &(*cells[left])[0], &(*cells[left])[1]
};
if (left == 1) {
std::swap(slices[1], slices[5]);
}
if (puzzle->outerSlicePos == -1) {
std::rotate(slices.rbegin(), slices.rbegin() + 1, slices.rend());
}
for (int i = (puzzle->outerSlicePos + 1) / 2; i < 8; i += 2) {
renderSlice(shader, *slices[i], i - 3.5 + offset * (-9 + 2 * i));
}
int newMiddlePos;
if (puzzle->outerSlicePos == -1) {
newMiddlePos = (puzzle->middleSlicePos - mainDir + 6) % 4 - 2;
} else {
newMiddlePos = (puzzle->middleSlicePos - mainDir + 5) % 4 - 1;
}
float newMiddleOffset = -2 * puzzle->middleSlicePos + newMiddlePos * 2 + offset * (4 * newMiddlePos - 2 - puzzle->outerSlicePos);
float rotProgress = smoothstep((animationProgress - 2.0f) / 2);
mat4x4_translate(model, newMiddleOffset, 0, 0);
renderMiddleSlice(shader, true, 0.0f);
for (int i = (1 - puzzle->outerSlicePos) / 2; i < 8; i += 2) {
CellLocation direction = (CellLocation)(i / 2 % 2 + 2);
mat4x4 baseModel;
mat4x4_translate(baseModel, i - 3.5 + offset * (-9 + 2 * i), 0, 0);
mat4x4_dup(model, baseModel);
render2c(shader, {0, 0, 0}, {(*slices[i])[1][1].a, (*slices[i])[1][1].b}, direction);
int flipRot = i / 2 % 2 * 2 - 1;
for (int j = 0; j < 2; j++) {
for (int k = -1; k < 2; k += 2) {
std::array<float, 2> pos = {0, 0};
pos[j] = k;
Piece piece = (*slices[i])[pos[0] + 1][pos[1] + 1];
pos[j] = k * (1 + offset * 4);
mat4x4_dup(model, baseModel);
mat4x4_translate_in_place(model, 0, pos[0], pos[1]);
mat4x4_rotate(model, model, flipRot * mainDir, 0, 0, M_PI_2 * rotProgress);
render3c(shader, {0, 0, 0}, {piece.a, piece.b, piece.c});
}
}
for (int j = -1; j < 2; j += 2) {
for (int k = -1; k < 2; k += 2) {
std::array<float, 2> pos = {(float)j, (float)k};
Piece piece = (*slices[i])[pos[0] + 1][pos[1] + 1];
pos[0] *= (1 + offset * 4);
pos[1] *= (1 + offset * 4);
int orientation = 2 - 2 * j + (3 + flipRot * (k + 2)) / 2;
mat4x4_dup(model, baseModel);
mat4x4_translate_in_place(model, 0, pos[0], pos[1]);
mat4x4_rotate(model, model, 0, k * flipRot, 0, M_PI * rotProgress);
mat4x4_rotate(model, model, j * k, 0, 0, M_PI_2 * rotProgress);
render4c(shader, {0, 0, 0}, {piece.a, piece.b, piece.c, piece.d}, orientation);
}
}
}
}
}
void PuzzleRenderer::renderGyroYAnimation(Shader *shader, CellLocation cell) {
int direction = puzzle->outerSlicePos * ((int)cell % 2 * -2 + 1);
std::array<CellData*, 2> cells = {&puzzle->leftCell, &puzzle->rightCell};
int left = (1 - puzzle->outerSlicePos) / 2;
int right = 1 - left;
if (animationProgress < 1.0f) {
float halfOffset = -2 * animationProgress * (animationProgress - 1.0f);
mat4x4_translate(model, puzzle->outerSlicePos * -(halfOffset + 2.5f), 0, 0);
mat4x4_rotate(model, model, 0, 0, -direction, M_PI_2 * animationProgress);
renderCell(shader, *cells[left], 0);
mat4x4_translate(model, puzzle->outerSlicePos * (halfOffset + 1.5f), 0, 0);
mat4x4_rotate(model, model, 0, 0, direction, M_PI_2 * animationProgress);
mat4x4_translate_in_place(model, puzzle->outerSlicePos * -1.5f, 0, 0);
renderSlice(shader, puzzle->innerSlice, puzzle->outerSlicePos * -0.5f);
renderMiddleSlice(shader, true, 0.0f);
renderCell(shader, *cells[right], puzzle->outerSlicePos * 1.5f);
renderSlice(shader, puzzle->outerSlice, puzzle->outerSlicePos * 3.5f);
} else {
mat4x4_translate(model, puzzle->outerSlicePos * -2.5f, 0, 0);
mat4x4_rotate(model, model, 0, 0, -direction, M_PI_2);
renderCell(shader, *cells[left], 0);
mat4x4 base;
mat4x4_translate(base, puzzle->outerSlicePos * 1.5f, 0, 0);
mat4x4_rotate(base, base, 0, 0, direction, M_PI_2);
mat4x4_translate_in_place(base, puzzle->outerSlicePos * -1.5f, 0, 0);
mat4x4_dup(model, base);
renderSlice(shader, puzzle->innerSlice, puzzle->outerSlicePos * -0.5f, {1, -1});
renderMiddleSlice(shader, true, 0.0f);
renderCell(shader, *cells[right], puzzle->outerSlicePos * 1.5f);
renderSlice(shader, puzzle->outerSlice, puzzle->outerSlicePos * 3.5f, {1, -1});
float stripYRotation = std::min(1.0f, std::max(0.0f, (animationProgress - 1.0f) * 2));
float stripXOffset = std::min(1.0f, std::max(0.0f, (animationProgress - 1.5f) * 2));
stripYRotation = -M_PI_2 * stripYRotation * puzzle->outerSlicePos;
stripXOffset = (stripXOffset + 0.5f) * puzzle->outerSlicePos;
int stripFilter = (animationProgress < 2.0f) ? -1 : 1;
for (int i = -1; i < 2; i += 2) {
mat4x4_dup(model, base);
mat4x4_translate_in_place(model, puzzle->outerSlicePos * -0.5f + stripXOffset, i * 1.5f, 0);
mat4x4_rotate(model, model, 0, 0, i, stripYRotation);
mat4x4_translate_in_place(model, puzzle->outerSlicePos * -0.5f, -i * 1.5f, 0);
renderSlice(shader, puzzle->innerSlice, 0, {1 + i, stripFilter});
mat4x4_dup(model, base);
mat4x4_translate_in_place(model, puzzle->outerSlicePos * 3.5f - stripXOffset, i * 1.5f, 0);
mat4x4_rotate(model, model, 0, 0, i, -stripYRotation);
mat4x4_translate_in_place(model, puzzle->outerSlicePos * 0.5f, -i * 1.5f, 0);
renderSlice(shader, puzzle->outerSlice, 0, {1 + i, stripFilter});
}
if (animationProgress > 2.0f) {
mat4x4_identity(model);
for (int i = -1; i < 2; i += 2) {
for (int j = -1; j < 2; j += 2) {
float offsetX = puzzle->outerSlicePos * 1.5f - 2 * direction * j;
float offsetY = puzzle->outerSlicePos * direction;
float offsetZ = i * (1 + sinf(M_PI * (animationProgress - 2.0f)));
float angle = M_PI_2 * smoothstep(animationProgress - 2.0f);
Piece piece = puzzle->outerSlice[j + 1][i + 1];
mat4x4_translate(model, offsetX, offsetY, offsetZ);
mat4x4_rotate(model, model, 0, -j, 0, angle);
render3c(shader, {0, 0, 0}, {piece.a, piece.b, piece.c});
piece = puzzle->innerSlice[j + 1][i + 1];
mat4x4_translate(model, offsetX, -offsetY, offsetZ);
mat4x4_rotate(model, model, 0, -j, 0, angle);
render3c(shader, {0, 0, 0}, {piece.a, piece.b, piece.c});
}
}
}
}
}
void PuzzleRenderer::renderGyroZAnimation(Shader *shader, CellLocation cell) {
int direction = puzzle->outerSlicePos * ((int)cell % 2 * 2 - 1);
std::array<CellData*, 2> cells = {&puzzle->leftCell, &puzzle->rightCell};
int left = (1 - puzzle->outerSlicePos) / 2;
int right = 1 - left;
if (animationProgress < 1.0f) {
float halfOffset = -2 * animationProgress * (animationProgress - 1.0f);
mat4x4_translate(model, puzzle->outerSlicePos * -(halfOffset + 2.5f), 0, 0);
mat4x4_rotate(model, model, 0, -direction, 0, M_PI_2 * animationProgress);
renderCell(shader, *cells[left], 0);
mat4x4_translate(model, puzzle->outerSlicePos * (halfOffset + 1.5f), 0, 0);
mat4x4_rotate(model, model, 0, direction, 0, M_PI_2 * animationProgress);
mat4x4_translate_in_place(model, puzzle->outerSlicePos * -1.5f, 0, 0);
renderSlice(shader, puzzle->innerSlice, puzzle->outerSlicePos * -0.5f);
renderMiddleSlice(shader, true, 0.0f);
renderCell(shader, *cells[right], puzzle->outerSlicePos * 1.5f);
renderSlice(shader, puzzle->outerSlice, puzzle->outerSlicePos * 3.5f);
} else {
mat4x4_translate(model, puzzle->outerSlicePos * -2.5f, 0, 0);
mat4x4_rotate(model, model, 0, -direction, 0, M_PI_2);
renderCell(shader, *cells[left], 0);
mat4x4 base;
mat4x4_translate(base, puzzle->outerSlicePos * 1.5f, 0, 0);
mat4x4_rotate(base, base, 0, direction, 0, M_PI_2);
mat4x4_translate_in_place(base, puzzle->outerSlicePos * -1.5f, 0, 0);
mat4x4_dup(model, base);
renderSlice(shader, puzzle->innerSlice, puzzle->outerSlicePos * -0.5f, {-1, 1});
renderMiddleSlice(shader, true, 0.0f);
renderCell(shader, *cells[right], puzzle->outerSlicePos * 1.5f);
renderSlice(shader, puzzle->outerSlice, puzzle->outerSlicePos * 3.5f, {-1, 1});
float stripZRotation = std::min(1.0f, std::max(0.0f, (animationProgress - 1.0f) * 2));
float stripXOffset = std::min(1.0f, std::max(0.0f, (animationProgress - 1.5f) * 2));
stripZRotation = M_PI_2 * stripZRotation * puzzle->outerSlicePos;
stripXOffset = (stripXOffset + 0.5f) * puzzle->outerSlicePos;
int stripFilter = (animationProgress < 2.0f) ? -1 : 1;
for (int i = -1; i < 2; i += 2) {
mat4x4_dup(model, base);
mat4x4_translate_in_place(model, puzzle->outerSlicePos * -0.5f + stripXOffset, 0, i * 1.5f);
mat4x4_rotate(model, model, 0, i, 0, stripZRotation);
mat4x4_translate_in_place(model, puzzle->outerSlicePos * -0.5f, 0, -i * 1.5f);
renderSlice(shader, puzzle->innerSlice, 0, {stripFilter, 1 + i});
mat4x4_dup(model, base);
mat4x4_translate_in_place(model, puzzle->outerSlicePos * 3.5f - stripXOffset, 0, i * 1.5f);
mat4x4_rotate(model, model, 0, i, 0, -stripZRotation);
mat4x4_translate_in_place(model, puzzle->outerSlicePos * 0.5f, 0, -i * 1.5f);
renderSlice(shader, puzzle->outerSlice, 0, {stripFilter, 1 + i});
}
if (animationProgress > 2.0f) {
mat4x4_identity(model);
for (int i = -1; i < 2; i += 2) {
for (int j = -1; j < 2; j += 2) {
float offsetX = puzzle->outerSlicePos * 1.5f + 2 * direction * j;
float offsetY = i * (1 + sinf(M_PI * (animationProgress - 2.0f)));
float offsetZ = puzzle->outerSlicePos * direction;
float angle = M_PI_2 * smoothstep(animationProgress - 2.0f);
Piece piece = puzzle->innerSlice[i + 1][j + 1];
mat4x4_translate(model, offsetX, offsetY, offsetZ);
mat4x4_rotate(model, model, 0, 0, -j, angle);
render3c(shader, {0, 0, 0}, {piece.a, piece.b, piece.c});
piece = puzzle->outerSlice[i + 1][j + 1];
mat4x4_translate(model, offsetX, offsetY, -offsetZ);
mat4x4_rotate(model, model, 0, 0, -j, angle);
render3c(shader, {0, 0, 0}, {piece.a, piece.b, piece.c});
}
}
}
}