prime31’s gists

prime31 / ldtk.zig

Created November 4, 2023 23:57

LDtk export from json schema

	pub const Ld = struct {
	description: []const u8,
	title: []const u8,
	// renamed from: "$schema
	schema: []const u8,
	// renamed from: "$ref
	ref: []const u8,
	version: []const u8,
	// renamed from: "LdtkJsonRoot
	ldtk_json_root: LdtkJsonRoot,

prime31 / glowy.wgsl

Created March 28, 2023 14:34

Bevy Material Example

	#import bevy_pbr::mesh_view_bindings
	#import bevy_pbr::mesh_bindings

	#import bevy_pbr::pbr_types
	#import bevy_pbr::utils
	#import bevy_pbr::clustered_forward
	#import bevy_pbr::lighting
	#import bevy_pbr::shadows
	#import bevy_pbr::pbr_functions

prime31 / Blobs.cs

Created March 17, 2021 23:07

Unmanaged Resources

	using System;
	using System.Diagnostics;
	using System.Runtime.CompilerServices;
	using System.Runtime.InteropServices;

	namespace Nez.Unmanaged
	{
	unsafe public struct BlobAllocator : IDisposable
	{
	byte* m_RootPtr;

prime31 / Program.cs

Last active May 16, 2024 11:27

C# Basic ECS implementation example. Not production ready, optimized or even fully functional. It is here to illustrate the patterns for creating an ECS from scratch.

	using System;

	namespace SimpleECS
	{
	struct Position
	{
	public float X, Y;
	}

	struct Velocity

prime31 / FilePicker.cs

Last active November 20, 2023 02:03

Simple file and folder picker for ImGui.Net

	using ImGuiNET;
	using Microsoft.Xna.Framework;
	using System;
	using System.Collections.Generic;
	using System.IO;
	using Num = System.Numerics;

	namespace Nez.ImGuiTools
	{
	public class FilePicker

prime31 / cute_c2_collisions.cs

Last active July 4, 2019 18:19

C# conversion of https://github.com/RandyGaul/cute_headers/blob/master/cute_c2.h


	const int C2_GJK_ITERS = 20;
	public const int C2_MAX_POLYGON_VERTS = 8;

	// position of impact p = ray.p + ray.d * raycast.t
	public static c2v c2Impact(c2Ray ray, float t) => c2Add(ray.p, c2Mulvs(ray.d, t));

	#region Wrapper Methods

	public static unsafe bool c2Collided(void* A, c2x* ax, C2_TYPE typeA, void* B, c2x* bx, C2_TYPE typeB)

prime31 / Game2.cs

Last active December 16, 2016 04:50

	using Microsoft.Xna.Framework;
	using Microsoft.Xna.Framework.Graphics;
	using Microsoft.Xna.Framework.Input;
	using Nez;


	namespace TheWall
	{
	public class Game2 : Game
	{

prime31 / BoxController2D.cs

Last active July 16, 2016 20:24 — forked from piedoom/BoxController2D.cs

	using Microsoft.Xna.Framework;
	using Nez;
	using Nez.Sprites;
	using System;
	using System.Collections.Generic;
	using System.Linq;
	using System.Text;
	using System.Threading.Tasks;
	using Vapor.Code.Utility;

prime31 / 2DDeferredLighting.fx

Last active April 15, 2016 05:33

2D deferred lighting implementation (first pass, not optimized)

	// ##### ##### ##### ##### ##### ##### #####
	// ##### ##### Common Uniforms ##### #####
	// ##### ##### ##### ##### ##### ##### #####

	float4x4 _objectToWorld;
	float4x4 _worldToView;
	float4x4 _projection; // viewToCamera?
	float4x4 _screenToWorld; // this is used to compute the world-position

	// color of the light

prime31 / gist:ab89f2d0b759dc11a315

Created December 10, 2015 18:38 — forked from anonymous/gist:8bb64b0556fecd13769f

Swept AABB Collisions C#

	public static bool TestAABBSweep(Vector2 extents1, Vector2 centre1, Vector2 velocity1, Vector2 extents2, Vector2 centre2, Vector2 velocity2, out float t0, out float t1)
	{
	var aabb1 = new AABB(centre1, extents1);
	var aabb2 = new AABB(centre2, extents2);

	//Check if the boxes are currently overlapping
	if (aabb1.Overlaps(aabb2))
	{
	t0 = t1 = 0;
	return true;

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