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@antonkudin
antonkudin / pipeGenerator.cs
Created September 26, 2023 13:48
Generates pipe mesh from mesh segments
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class pipeGenerator : MonoBehaviour
{
[SerializeField] Mesh straightMesh;
[SerializeField] Mesh elbowMesh;
[Space]
[SerializeField] Vector3[] pathPoints;
@vurtun
vurtun / perm.c
Last active October 13, 2023 08:58
Array shuffle
#define xglue(x, y) x##y
#define glue(x, y) xglue(x, y)
#define uniqid(name) glue(name, __LINE__)
#ifdef _MSC_VER
#define swap(a,b) do { decltype((a) + 0) _t = (a); (a) = (b); (b) = _t; } while(0)
#else
#define swap(a,b) do {__typeof__((a) + 0) _t = (a); (a) = (b); (b) = _t; } while(0)
#endif
@vurtun
vurtun / nn.c
Last active November 1, 2023 16:13
Neural Network
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <float.h>
#include <string.h>
#include <assert.h>
#include <stdint.h>
#include <stdarg.h>
#include <math.h>
@dwilliamson
dwilliamson / MarchingCubes.js
Last active February 14, 2025 06:56
Marching Cubes Lookup Tables
//
// Lookup Tables for Marching Cubes
//
// These tables differ from the original paper (Marching Cubes: A High Resolution 3D Surface Construction Algorithm)
//
// The co-ordinate system has the more convenient properties:
//
// i = cube index [0, 7]
// x = (i & 1) >> 0
// y = (i & 2) >> 1

A metatable can be defined like

local t = setmetatable({}, {
  __tostring = function() return 'custom tostring behavior!' end
})

Here are the metamethods that you can define, and their behavior

Operators

@JarkkoPFC
JarkkoPFC / morton.h
Created September 30, 2021 06:19
Faster 16/32bit 2D Morton Code encode/decode functions
uint16_t encode16_morton2(uint8_t x_, uint8_t y_)
{
uint32_t res=x_|(uint32_t(y_)<<16);
res=(res|(res<<4))&0x0f0f0f0f;
res=(res|(res<<2))&0x33333333;
res=(res|(res<<1))&0x55555555;
return uint16_t(res|(res>>15));
}
//----
@mmozeiko
mmozeiko / q1.c
Created August 23, 2021 00:35
Quake 1 animated model rendering
// download glfw3 from https://www.glfw.org/download and then compile:
// cl.exe -O2 q1.c -Iinclude -link opengl32.lib glu32.lib lib-vc2019\glfw3dll.lib
#define _CRT_SECURE_NO_DEPRECATE
#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include <math.h>
#include <assert.h>
@svpino
svpino / neural-network-from-scratch.py
Last active December 13, 2024 20:19
An implementation of a neural network from scratch
import numpy as np
def sigmoid(x):
return 1 / (1 + np.exp(-x))
def neural_network(X, y):
learning_rate = 0.1
W1 = np.random.rand(2, 4)
W2 = np.random.rand(4, 1)
@mmozeiko
mmozeiko / astar.h
Last active December 29, 2023 10:18
generic A* in C
// generic A* pathfinding
//
// INTERFACE
//
// mandatory macros
#ifndef ASTAR_POS_TYPE
#error ASTAR_POS_TYPE should specify position type