Programming

This article tries to give hints to would-be HL mod authors in many different aspects of the programming experience.

Weapon : FireGrenade

How to get Half-Life's server to compile and run on Linux boxes worldwide

Instant Firing Rockets (like in TFC)

create an observer mode for your mod

Radar System

Explanation of all the MP5 code. Written by Greg Hudson.

This is going to be a fairly long tutorial on some basic functions in HL SDK.

Challenge based article about adding a new weapon to Half-Life

Beheading Zombies

This tutorial will tell you how to make clientside richoche sounds. That basicly means, if you shoot at metal railings, then you hear metal richoche's etc.

thirdperson camera clip

Sentry continued: adding Sentry-parts box and hud-icon

HLSDK Engine Notes

Debugging your dlls for your Mod

View model rendering

Frags for killing Monsters in MP

Improved Spectatormode for Teamplay

Adding Two-Team Deathmatch to Your Mod (part 3 & 4 are missing)

Today we are going to make our monster kill

The final sentry will look and work something like the sentries in TFC that the engineers build, we are going to have a phase when a player builds the sentry and can give it ammo and rockets.

This tut will show you how to make spectators stop seeing what alive people are saying and vice-vesa.

View Turrets through Barrel

This is for people wanting to make their own Half-Life bot.

Collection of coding snippets that may or may not work, use a a reference when building your mod

Heres a short tutorial on how to change the HUD and blood colors. Really simple.

Roter Bildschirm bei Schaden (German)

Waffensystem (German)

In this tut, i will show you how to add a diablo camera effect to your mod.

This tut will fix the weapon select bug where weapons that have ran out of primary ammo but still have secondary ammo are not selectable.

In this article I will explain how to make a monster disregard the player if they're within a certain level of light

This article describes the principles behind coding a VGUI HUD by piggy backing off the existing HUD, seriously reducing the amount of code needed.

You know, the UTIL_ScreenShake can only shake clients that are on ground. Because that sucks ass, here we're gonna fix it.

Holster Animation

This is a tutorial teaching you how to make a flying system in half-life

Governer

Guass Fix

Half-Life Team System With VGUI Menu w/SDK 2.2

Adding Assault to Your Mod (part 3 & 4 are missing)

This tutorial teach a very simple way to edit, remove the cheating Impulse 101 code.

Part 3 in 5 part series

Shooting through walls

This tuturial helps you set your speed this tuturial is really easy.

Adding an ammo indicator to the HUD

Glock Silenced and zoomed in Half-Life

Smoke trail behind player

For eye-mode specators

Spreadsystem (German)

When a player dies drop primary weapon rather than weapon box

I will now explain how I did monster respawning in MP

Counterstrike Gameplay

Coding Style

Voice API in SDK 2.2

Rescaling Half-Life

Adding New skill.cfg Entries

No minus frag when killed self in Half-Life

Ever noticed that grenade the MP5 fires tumbles end over end in the air

3rd Person Ansicht (German)

e. It adds detail where there was none before, and provides a much enhanced visual experience.

How to change your MP5 to an MP5-SD3

Ever wanted to use gman twice in a map with a different look?

WaterMatch (German)

add a server controlled hud countdown

Adding new monster classes

Second part of the tutorial, that includes the modification of the HUD to show 4 digits on ammo, and the modificacion on the client-server message for the weapon magazine.

Very simple tutorial, but it will teach you how to allow a weapon to 'use' objects, just like when the player hits the use key.

In this tutorial we are going to make the secondary fire of the python fire off all six rounds.

Make a Medic

Checking line of sight and field of view

Editboxes and Images

Here I will show you a fast and simple program and demonstrate the basics of C

here are the basic things you need in a normal weapon

An overview of the triangle API, which can be used to draw textured, animated polygons on the fly.

Vectors: An Introduction

Using INI configuration files properly

Usp ( Counter-Strike Style)

Explosion Shake

Weapon Names on the HUD

There are a few ways of implementing a class system.

Half-Life Server Info Class

Spectator-style camera with clipping

CS Style 2x Zooming (for SDK 2.3)

Half-Life Graphics Part 1 - 2D Sprites (German)

The second part builds upon the more general information learnt in the first, describing how it applies to each of the original half-life weapons.

Code a CS AK47 into Half-Life

Part 2 in 5 part series

Hud game

Weapon Droppings

This tutorial is about how to create a Shotgun with two types of ammo (slugs and buckshot).

This snippet gives you some simple code to utilize the client side decal clearing function to wipe all decals from the map for a round reset, or whatever.

In this tutorial I will teach you how to use the UTIL_Bloodstream effect.

add a complete, fully functional new weapon to Half-Life (and that includes the HUD componants!)

Standing Still For 5 Seconds (Respawning)

how the code actually works so that you can add your own features

TURRETS in Half-Life

Ricochets of walls.

A checkpoint system designed for cooperative play but possible in other game modes.

Tutorial covering the creation of multiple viewports

MP5 to Chain gun

Here's how you PREPARE a turret to support the secondary fire mode.

The BSP map format that Half-Life uses makes it fairly easy to do certain types of special effects, including fake underwater caustics, so we'll play around with that a little...

Old Menus System

This tutorial will show you how to create new bullet types.

Introduction to Half-Life coding

Where would we be without visibility determination?

A Laser-Pointer for any hl-weapon

Where DiD I Hit Him (Update)

Real-Time 'TRON 2.0' Glow in Half-Life

This tutorial shows how to change the rpg rockets to home in on the closest living thing besides you.

This is a quick look to see what an existing entity class, CGameText, does and how it works.

CS Style 2x Zooming

A small guide, written by Valve's Alfred Reynolds, on how to debug your mod in steam.

Medkit Bugfix

Half-Life Graphics Part 2 - EfxAPI (German)

Every Half-Life weapon have flags. For example MP5

Model Classes in Half-Life

Snark-Dropping Crossbow

Quick & simple, heres how to draw visible surfaces (bsp only) - unlit.

Addign a Third and Fourth attack to your mod

adding zoom functinality to your mp5

This article describes, step-by-step, how to create a message which can be sent from the server-side to the client-side.

Changing view angles with quaternions

TFC has a generic status bar that sends a bunch of different details to the client.

This tutorial is designed to help you create a flexible client side Zoom function for SDK2

Precaching was one of the first stumbling blocks we encountered when we starting working with the SDK.

Add MP3 support to Half-Life

Fast 'n easy weapon naming

This tutorial will demonstrate how simple you can make a brush define the area where the player will spawn inside when entering a teleporter.

Another Way To Make Those Cute Lil Houndeyes Not So Cute

This tutorial will help you gain an understanding of the FireBulletsPlayer and FireBullets

Placing Breakpoints

Creating your Menu Bitmasks in Half-Life

Function to remove named items from a player's inventory.

This tutorial will show you how to setup a new key and console command, which can then be used in game to make the player sprint when holding the key

If players want to remain in a position (such as crouch or prone) for extended periods of time, this could lead to fatigue, here's how you can alleviate that with some clever manipulation of the button code.

In this tutorial we will learn how to add new Skill Health links to add to new custom monsters.

How to Compile the Half-Life Standard SDK on the Linux Platform

Sensor Mine

C++ Cheat Sheet

This tutorial will show you how to add clientside smoke puffs. You'll need a sprite that's compiled as an additive.

Explode Shake (UPDATE)

In this tutorial we are going to add two new key functionalities.

Hash Tables

This tutorial will show you how to add a hud element that will project a sprite of you player that flashes in the area you were last hit.

I have found a way to make Better Freeze Grenades

This tutorial, while not hard to do, gives a great effect; with snarks leaving behind a smoke trail as they run.

I am writing this tutorial because there are no tutorials on this that I can find and this effect is easy to make if you know what to do. This tutorial will be easy for people who are new to Half-Life Modding.

This tut will cover a new monster who can sit in your map, and run away if you shoot at it.

HL's Color Indexing System (fixed/changed)

Scripts (a follow up to Aliases, scripts, and binds)

In this tutorial I will show you how to change the weapon damages without recompiling the dll

Decals for every mp5 bullet

I noticed that a lot of bandwidth is consumed when trying to display a HUD Message. To fix this I coded a new type of message system that uses a lot less bandwidth.

This is an easy way to change the widespread of the MP5 into a much smaller one.

how to add old school Client Side word censoring

You want to kill yourself and dont get minus points?

How to develop a new entity that handles menus in game (ala counterstrike's 'buy weapons' menu).

This is going to be a fairly long tutorial on the basic data types of C.

This tutorial will somewhat describe how to create a completely new turret.

Replace default set of NPC stepping sounds with the set from the texture they're walking on.

Static Water Simulation

Shields

I'll show you how to make monsters attacks light up world brushes

How to make a Desert-Eagle

Ever wanted to use gman twice in a map with a different look?

This article shows you how to quickly change the default 320 & 640 .tga image sizes to fit whatever resolution a player is using.

I've decided to add the Last Man Standing gamerule set (part 3 & 4 are missing)

You wanted to know how to color the teams in the scoreboard?

Finding your way around the Half-Life DLL

Customising the HUD colour

Here is a little tutorial on CS-style weapon dropping.

Create an Entity like a CS Buy Zone

Half-Life Observer Mode Tutorial

Blast Soundwave Effect From a Weapon

Changing maximum allowed weapons to 45

This tutorial will somewhat describe how to create a completely new turret.

Crosshair Tutorial (German)

How to make a reloadable hornet gun

3 Mode Zoom For Mp5

Function Overloading is useful when you have a function that you want to do several different things with

Create a Cloaked Stealth Suit in Half-Life

Different Classes In Every Team

Here is a fix for people having problems with DarkKnight's team VGUI tutorial

Activating w_ models animated animation

Geldanzeige im HUD (German)

Introduction to Half-Life SDK2

Where Did I Hit Him (Update 2)

Quick Guide to Debugging

(Extension to X-0ut's custom model tut)

Silenced Glock

This tutorial will cover : 1. Making the monster get angry at you if you shoot him. 2. Random chatting according to it's state.

Funcs for Round system

Change the mp5 grenade launcher to a Shotgun-cannon.

How to Make your Death Msg more like you

Better Weapon Droping

Basing one monster class off another

Adding weapons to the HUD

How to add a new monster to your maps.

Sparks & Smokepuffs fix

Hammer code that converts a map from standard .map format to .dxf format

Challenge based article about getting an entity to point at you while it fires

Mp3 Fix

good introduction to starting a Half-Life Mod

This is just a simple way to switch to different gameplay modes.

Ok, now, for starters, this tutorial will explain how to set the HUD up, and just get the basis.

Chumtoad firing hornetgun correction

Modeling events

In Half-Life you may have noticed sparks appear when you shoot barney's helmet or an alien grunt's armor.

this tutorial will show you how to add new factions to monsters.

How to allow monsters in mp

This is the lowest level entry to the engine. It also maps quite conveniently to Quake-C stuff, so check that out

In this, the second part in the 'Where is Poppy' modding tutorial series I take you through the steps for creating your own custom mesh loading entity

Difficulty rating: easy. This relies heavily on existing Halflife grenade code and has almost nothing original.

Slots/positions Fix

The more coding you do, the more you'll start talking about the 'pev'

Maintaining Class After Death

bouncing bodies

continued

Changing Tracer Effects on weapons in Half-Life

Heres another tutorial for bots. This one on creating some basic bot item search code.

Panels, Labels, Buttons, and Commands

This is a simple tutorial to discuss making new entities, and reading their keys in your code, so you can customize them.

This tutorial will alter the existing DrawHudString function in the CHud Class, we will be adding the ability for colored text and different draw modes.

Getting Started

I tested my tutorial and found out that there was an error with the reloading with secondary attack so im attempting ot fix it

make the RPG a little more powerful

HUD Health Bar

Drawing a Special Credit String on the clients head's up display

You want the most easy way to rescale halflife

Change host players ping on the scoreboard to 'Host'

This tutorial will explain how to add the current name of the weapon the player is using to the HUD we created earlier.

New to coding and ever wondered how TFC did the Christmas easter egg? Fear nevermore!

Menus in Half-Life

A detailed tutorial on how the Half-Life AI hangs together. Covers Schedules, Tasks, and Monster States, with examples.

Simple tutorial on creating a custom entity

this tutorial will explain how to set the HUD up, and just get the basis.

Challenge based article covering the turning speed of an entity

Weapon Categories

The Power of CVARs!

This tutorial is a step-by-step guide to creating a VGUI Sniper Scope.

instead of defining the area the sprite CANNOT be drawn in, you instead define the area the sprite CAN be drawn in.

In this tutorial I'm going to show you how to add a dead-icon to the scoreboard.

Per-pixel dynamic lighting. Real-time bumpmapping. Cartoon shading. Thermal goggles.

Flammenwerfer erstellen (German)

Notice how if you tap your crouch key very fast you bounce? This code will fix that.

Simulating Randomness

This is for Half-Life 1 and the GoldSrc engine

Respawn Delay (When Dead, Not When Spawn)

Green Driplles

Set Up a liblist.gam

Script for a slightly better illusion of holstering and re-equipping weapon in Half-Life.

Controllable skies

Real-Time 'TRON 2.0' Glow For Low-Spec Hardware

Rendering a wireframe of maps yourself

This tutorial shows how to make an M16 assault rifle, with an optional silencer, just like the M4 rifle from Counter-Strike.