Who is she

Rachel Crawford

Likes to make games and things

Junior Network Programmer at Rockstar North

What is Quiver

Quiver is a game engine

It's like these:

But WAY more scrappy!

What is Quiver

Quiver is a game engine

It's like these:

But WAY more scrappy! Also not ready.

What is Quiver

Quiver is a game engine

It's like these:

But WAY more scrappy! Also not ready. Also not as good.

What is Quiver

Quiver is a game engine

It's like these:

But WAY more scrappy! Also not ready. Also not as good.

Quiver has specific goals:

• Make making games with pseudo-3D graphics easy
• Have fun

What is Pseudo-3D

Think Wolfenstein 3D, Doom.

What is Quarrel

Quarrel is a game made with Quiver

Let's go

Are you still awake

Things I'm Using

Things I'm Using

C++14

Things I'm Using

C++14

SFML

Things I'm Using

C++14

SFML

Box2D

Things I'm Using

C++14

SFML

Box2D

ImGui using ImGui-SFML

Things I'm Using

C++14

SFML

Box2D

ImGui using ImGui-SFML

Catch

Things I'm Using

C++14

SFML

Box2D

ImGui using ImGui-SFML

Catch

json.hpp

Things I'm Using

C++14

SFML

Box2D

ImGui using ImGui-SFML

Catch

json.hpp

Premake

Things I'm Using

C++14

SFML

Box2D

ImGui using ImGui-SFML

Catch

json.hpp

Premake

spdlog, fmt, optional...

How it Works: Pseudo-3D Rendering

Please imagine cool diagrams

Raycasting like Wolfenstein 3D

• For each horizontal pixel, cast a ray

// physicsWorld is a b2World
physicsWorld.RayCast(&callback, cameraPosition, rayEnd);

• From each fixture, extract render info

const auto renderData = (FixtureRenderData*)intersection.m_fixture->GetUserData();

• Draw a line on the screen for the intersection

// Implementation details...

In its current iteration, this code makes judicious use of STL

How it Works: Entities

Baby's first Entity Component System

World owns Entity

Entity owns Components

Components interface with Systems

Documentation

So much to do

Scripting, better input handling, input recording and playback, more unit tests, benchmarks, more audio features, pathfinding, more animation features, support for local multiplayer, support for remote multiplayer (networking)...

It's a lot of work!

How to Do It?

Less like this...

...more like this

...or this!

Thanks for Listening!

Quiver: github.com/rachelnertia/Quiver

Rachel Crawford

Twitter: @nershly

Website: rachelnertia.github.io

This presentation was made using Remark.js.

Questions?

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