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Juice up your game feel!

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IndieOutpost
IndieOutpost

This document discusses techniques for improving game feel, such as using sound effects and music, simple color palettes, tweening and easing functions, shakes, flashes, sprite effects, and particles. It provides definitions of game feel and discusses motivations for focusing on this topic. A variety of tools and techniques are presented for each area, with examples given. Particle systems are discussed in more depth, including the underlying physics equations and concepts of Stokes friction.

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Juice up your game feel Simon Weis Definitions Motivation Juice up your game feel Indie Outpost Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Simon Weis Tweening and Easing Shakes Flashes SpriteFX Particles February 13, 2014 Conclusion
Juice up your game feel Definitions Simon Weis Game Feel Definitions 1 Motivation Steve Swink : Game feel is real-time control of objects in a simulated space with interactions emphasized by polish. Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes juicy Flashes SpriteFX 2 Martin Jonasson : Juicy things are things that wobble, squirt, bounce or make little cute noises. The things that make the game feel good to interact with. 1 Steve Swink. Game Feel, A gamer’s guide to virtual sensation. Elsevier, 2009 2 Martin Jonasson and Petri Purho. Youtube – juice it or loose it, 2012. http://www.youtube.com/watch?v=Fy0aCDmgnxg Particles Conclusion
Motivation Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX How to create game feel and juicy objects? Simple pallets Know Your Math Exceeding pure functionality For any kind of game/style/genre/platform Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
Motivation Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX How to create game feel and juicy objects? Simple pallets Know Your Math Exceeding pure functionality Foundations Tweening and Easing For any kind of game/style/genre/platform Shakes Ready to use for everyone3 SpriteFX Flashes Particles Conclusion 3 Ok, almost. This talk is aiming for the one person indie gamedev studio
Music and SoundFX Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX This is so important. Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
Music and SoundFX Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX This is so important. Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles SoundFX make your interactions feel real. Conclusion
Music and SoundFX Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX This is so important. Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles SoundFX make your interactions feel real. Music conveys style, mood, spirit, feelings, . . . Conclusion
Music and SoundFX Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX There are no excuses Simple pallets Know Your Math Easy to implement Foundations Tweening and Easing Shakes Almost no computational costs Flashes SpriteFX Feasible for everyone. It’s click and listen. Particles Conclusion
Juice up your game feel Music and SoundFX Simon Weis Definitions Motivation Juice up your Game Feel Tools of the trade Music and SoundFX SoundFX: SFXR4 , BFXR5 , Oscillators, . . . Simple pallets Know Your Math 6 7 Music: ProTools, Cubase, Audacity , LMMS , WolframTones8 , AudioSauna9 . . . Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 4 Sfxr – simple sound effects generator, 2014. http://www.drpetter.se/project_sfxr.html 5 Bfxr, 2014. http://www.bfxr.net/ 6 Audacity, 2014. http://audacity.sourceforge.net/?lang=de 7 Lmms – linux multimedia studio, 2014. http://lmms.sourceforge.net/ 8 Wolframtones, 2014. http://tones.wolfram.com/ 9 Audiosauna – free software for making songs online, 2014. http://www.audiosauna.com/
Simple pallets Juice up your game feel Simon Weis Definitions Use just two or three colors . . . Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 10 Wikipedia, 2014. http://www.de.wikipedia.org[Johannes Itten]
Simple pallets Juice up your game feel Simon Weis Definitions Use just two or three colors . . . Motivation Or a single color gradient . . . Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 10 Wikipedia, 2014. http://www.de.wikipedia.org[Johannes Itten]
Simple pallets Juice up your game feel Simon Weis Definitions Use just two or three colors . . . Motivation Or a single color gradient . . . Juice up your Game Feel Or a subsection of the color circle10 Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 10 Wikipedia, 2014. http://www.de.wikipedia.org[Johannes Itten]
Simple pallets Juice up your game feel Simon Weis Definitions Use just two or three colors . . . Motivation Or a single color gradient . . . Juice up your Game Feel Or a subsection of the color circle10 Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion Name some games doing this! 10 Wikipedia, 2014. http://www.de.wikipedia.org[Johannes Itten]
Simple pallets
Simple pallets
Simple pallets
Simple pallets
Simple pallets
Simple pallets
Simple pallets
Simple pallets Memorizable, unique Look Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
Simple pallets Memorizable, unique Look Create a certain mood Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
Simple pallets Juice up your game feel Simon Weis Definitions Motivation Tools of the trade Juice up your Game Feel Music and SoundFX Simple pallets ColorBlender11 Share your pallets12 Color Lovers13 Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 11 Color blender, 2014. http://meyerweb.com/eric/tools/color-blend/ 12 tigsource – share your pallets, 2014. http://forums.tigsource.com/index.php?topic=25396.0 13 Colorlovers, 2014. http://www.colourlovers.com/palettes
Know your math Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
Know your math It’s not that hard – Math is like dancing Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
Tweening and Easing Juice up your game feel Simon Weis Definitions Motivation Term „in between“ Interpolation from 0 to 1 Robert Penner’s easing functions14 for JavaScript, ActionScript 1, 2, 3 , Java, Lua, C#, C++ Codepen equations for organic motion15 Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 14 Robert penner’s easing functions – a collection of swappable functions that add flavor to motion, 2014. http://www.robertpenner.com/easing/ 15 Codepen – organic motions, 2014. http://codepen.io/soulwire/pen/kqHxB
Tweening and Easing Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
Tweening and Easing Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Tween . . . Positions and velocities (mimic physics) Scaling Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Timing Behaviour Particles Conclusion
Juice up your game feel Shakes Simon Weis Definitions Motivation Game objects, camera Juice up your Game Feel Random or Drag Positions Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX y y x Feeling of impact and weight. Particles x Conclusion
Flashes Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Flash into a color/back to original color Game objects, whole screen, background (for contrast) Timing behaviour ⇒ tweening functions Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
SpriteFX Juice up your game feel Simon Weis Definitions Motivation Sprites that serve as overlays or underlays for any graphical effect Juice up your Game Feel Music and SoundFX Simple pallets Combine with easing functions Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
SpriteFX Juice up your game feel Simon Weis Definitions Motivation Sprites that serve as overlays or underlays for any graphical effect Juice up your Game Feel Music and SoundFX Simple pallets Combine with easing functions Know Your Math Foundations Linear – Look at that sky! Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
SpriteFX Juice up your game feel Simon Weis Definitions Motivation Sprites that serve as overlays or underlays for any graphical effect Juice up your Game Feel Music and SoundFX Simple pallets Combine with easing functions Know Your Math Foundations Linear – Look at that sky! Radial – neon lamp Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
SpriteFX Juice up your game feel Simon Weis Definitions Motivation Sprites that serve as overlays or underlays for any graphical effect Juice up your Game Feel Music and SoundFX Simple pallets Combine with easing functions Know Your Math Foundations Linear – Look at that sky! Radial – neon lamp Vignette & vintage Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
SpriteFX Juice up your game feel Simon Weis Definitions Motivation Sprites that serve as overlays or underlays for any graphical effect Juice up your Game Feel Music and SoundFX Simple pallets Combine with easing functions Know Your Math Foundations Linear – Look at that sky! Radial – neon lamp Vignette & vintage Scanlines – retro Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
SpriteFX Juice up your game feel Simon Weis Definitions Motivation Sprites that serve as overlays or underlays for any graphical effect Juice up your Game Feel Music and SoundFX Simple pallets Combine with easing functions Know Your Math Foundations Linear – Look at that sky! Radial – neon lamp Vignette & vintage Scanlines – retro Change the Draworder Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
Particles Juice up your game feel Simon Weis Definitions One just can not have too many particles. Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
Juice up your game feel Particles Simon Weis Definitions Motivation No drawing skills required – simple shapes or SpriteFX Change/modulate color/alpha 16 Many References Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 16 Wikipedia, 2014. http://www.de.wikipedia.org[Partikelsystem] Daniel Shiffman. The Nature of Code. Magic Book Project, 2012 www.di.ubi.pt. Video game technologies – particle systems, 2014. http://www.di.ubi.pt/~agomes/tjv/teoricas/09-particles.pdf Daniel Church. Gamedevtuts – make your game pop with particle effects and quadtrees, 2014. http://gamedevelopment.tutsplus.com/tutorials/ make-your-game-pop-with-particle-effects-and-quadtrees--gamedev-2138 Mike McClelland. Gamedev.net – make a particle explosion effect, 2014. http://www.gamedev.net/page/resources/_/creative/visual-arts/ make-a-particle-explosion-effect-r2701
Particles – Physical Background and Code Juice up your game feel Simon Weis Movement – Newton-equations Definitions Motivation F =m·a Juice up your Game Feel t1 v= x= t0 t1 t0 a dt = a · t + v 0 Music and SoundFX Simple pallets Know Your Math Foundations 2 v dt = 1/2a · t + v 0 · t + x 0 Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
Particles – Physical Background and Code Juice up your game feel Simon Weis Movement – Newton-equations Definitions Motivation F =m·a Juice up your Game Feel t1 v= x= t0 t1 t0 a dt = a · t + v 0 Music and SoundFX Simple pallets Know Your Math Foundations 2 v dt = 1/2a · t + v 0 · t + x 0 Tweening and Easing Shakes Flashes SpriteFX Stokes friction Particles F r = −6πr ηv = R · v Conclusion
Particles – Physical Background and Code Juice up your game feel Simon Weis Movement – Newton-equations Definitions Motivation F =m·a Juice up your Game Feel t1 v= x= t0 t1 t0 a dt = a · t + v 0 Music and SoundFX Simple pallets Know Your Math Foundations 2 v dt = 1/2a · t + v 0 · t + x 0 Tweening and Easing Shakes Flashes SpriteFX Stokes friction Particles F r = −6πr ηv = R · v Does this make sense to you? v = ( v * R + a * dt ) ; x = x + v * dt ; Conclusion
Particles Juice up your game feel Simon Weis Definitions Motivation Some possible applications: Juice up your Game Feel Music and SoundFX smoke, sparks, weather, wind, raindrops and rainspalesh, snow, flashes, clouds in the sky, bullets, fire, stars, explosions, fluids, falling leaves, lasers, bullet time trails, fog, sunrays, rocket exhaust, water, flying birds, bouncing balls, desintegrating asteroids, grass, mist and smoke, spell-Effects, even hair and feathers and many other effects Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
Juice up your game feel Conclusion Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Compare! Shakes Flashes SpriteFX Particles Conclusion
Game Over
References I Juice up your game feel Simon Weis Audacity, 2014. http://audacity.sourceforge.net/?lang=de. Audiosauna – free software for making songs online, 2014. http://www.audiosauna.com/. Bfxr, 2014. http://www.bfxr.net/. Codepen – organic motions, 2014. http://codepen.io/soulwire/pen/kqHxB. Color blender, 2014. http://meyerweb.com/eric/tools/color-blend/. Colorlovers, 2014. http://www.colourlovers.com/palettes. Lmms – linux multimedia studio, 2014. http://lmms.sourceforge.net/. Robert penner’s easing functions – a collection of swappable functions that add flavor to motion, 2014. http://www.robertpenner.com/easing/. Sfxr – simple sound effects generator, 2014. http://www.drpetter.se/project_sfxr.html. tigsource – share your pallets, 2014. http://forums.tigsource.com/index.php?topic=25396.0.
References II Juice up your game feel Simon Weis Wikipedia, 2014. http://www.de.wikipedia.org. Wolframtones, 2014. http://tones.wolfram.com/. Daniel Church. Gamedevtuts – make your game pop with particle effects and quadtrees, 2014. http://gamedevelopment.tutsplus.com/tutorials/ make-your-game-pop-with-particle-effects-and-quadtrees--gamedev-2138. Martin Jonasson and Petri Purho. Youtube – juice it or loose it, 2012. http://www.youtube.com/watch?v=Fy0aCDmgnxg. Mike McClelland. Gamedev.net – make a particle explosion effect, 2014. http://www.gamedev.net/page/resources/_/creative/visual-arts/ make-a-particle-explosion-effect-r2701. Daniel Shiffman. The Nature of Code. Magic Book Project, 2012. Steve Swink. Game Feel, A gamer’s guide to virtual sensation. Elsevier, 2009. www.di.ubi.pt. Video game technologies – particle systems, 2014. http://www.di.ubi.pt/~agomes/tjv/teoricas/09-particles.pdf.

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Juice up your game feel!

  • 1. Juice up your game feel Simon Weis Definitions Motivation Juice up your game feel Indie Outpost Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Simon Weis Tweening and Easing Shakes Flashes SpriteFX Particles February 13, 2014 Conclusion
  • 2. Juice up your game feel Definitions Simon Weis Game Feel Definitions 1 Motivation Steve Swink : Game feel is real-time control of objects in a simulated space with interactions emphasized by polish. Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes juicy Flashes SpriteFX 2 Martin Jonasson : Juicy things are things that wobble, squirt, bounce or make little cute noises. The things that make the game feel good to interact with. 1 Steve Swink. Game Feel, A gamer’s guide to virtual sensation. Elsevier, 2009 2 Martin Jonasson and Petri Purho. Youtube – juice it or loose it, 2012. http://www.youtube.com/watch?v=Fy0aCDmgnxg Particles Conclusion
  • 3. Motivation Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX How to create game feel and juicy objects? Simple pallets Know Your Math Exceeding pure functionality For any kind of game/style/genre/platform Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 4. Motivation Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX How to create game feel and juicy objects? Simple pallets Know Your Math Exceeding pure functionality Foundations Tweening and Easing For any kind of game/style/genre/platform Shakes Ready to use for everyone3 SpriteFX Flashes Particles Conclusion 3 Ok, almost. This talk is aiming for the one person indie gamedev studio
  • 5. Music and SoundFX Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX This is so important. Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 6. Music and SoundFX Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX This is so important. Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles SoundFX make your interactions feel real. Conclusion
  • 7. Music and SoundFX Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX This is so important. Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles SoundFX make your interactions feel real. Music conveys style, mood, spirit, feelings, . . . Conclusion
  • 8. Music and SoundFX Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX There are no excuses Simple pallets Know Your Math Easy to implement Foundations Tweening and Easing Shakes Almost no computational costs Flashes SpriteFX Feasible for everyone. It’s click and listen. Particles Conclusion
  • 9. Juice up your game feel Music and SoundFX Simon Weis Definitions Motivation Juice up your Game Feel Tools of the trade Music and SoundFX SoundFX: SFXR4 , BFXR5 , Oscillators, . . . Simple pallets Know Your Math 6 7 Music: ProTools, Cubase, Audacity , LMMS , WolframTones8 , AudioSauna9 . . . Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 4 Sfxr – simple sound effects generator, 2014. http://www.drpetter.se/project_sfxr.html 5 Bfxr, 2014. http://www.bfxr.net/ 6 Audacity, 2014. http://audacity.sourceforge.net/?lang=de 7 Lmms – linux multimedia studio, 2014. http://lmms.sourceforge.net/ 8 Wolframtones, 2014. http://tones.wolfram.com/ 9 Audiosauna – free software for making songs online, 2014. http://www.audiosauna.com/
  • 10. Simple pallets Juice up your game feel Simon Weis Definitions Use just two or three colors . . . Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 10 Wikipedia, 2014. http://www.de.wikipedia.org[Johannes Itten]
  • 11. Simple pallets Juice up your game feel Simon Weis Definitions Use just two or three colors . . . Motivation Or a single color gradient . . . Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 10 Wikipedia, 2014. http://www.de.wikipedia.org[Johannes Itten]
  • 12. Simple pallets Juice up your game feel Simon Weis Definitions Use just two or three colors . . . Motivation Or a single color gradient . . . Juice up your Game Feel Or a subsection of the color circle10 Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 10 Wikipedia, 2014. http://www.de.wikipedia.org[Johannes Itten]
  • 13. Simple pallets Juice up your game feel Simon Weis Definitions Use just two or three colors . . . Motivation Or a single color gradient . . . Juice up your Game Feel Or a subsection of the color circle10 Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion Name some games doing this! 10 Wikipedia, 2014. http://www.de.wikipedia.org[Johannes Itten]
  • 21. Simple pallets Memorizable, unique Look Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 22. Simple pallets Memorizable, unique Look Create a certain mood Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 23. Simple pallets Juice up your game feel Simon Weis Definitions Motivation Tools of the trade Juice up your Game Feel Music and SoundFX Simple pallets ColorBlender11 Share your pallets12 Color Lovers13 Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 11 Color blender, 2014. http://meyerweb.com/eric/tools/color-blend/ 12 tigsource – share your pallets, 2014. http://forums.tigsource.com/index.php?topic=25396.0 13 Colorlovers, 2014. http://www.colourlovers.com/palettes
  • 24. Know your math Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 25. Know your math It’s not that hard – Math is like dancing Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 26. Tweening and Easing Juice up your game feel Simon Weis Definitions Motivation Term „in between“ Interpolation from 0 to 1 Robert Penner’s easing functions14 for JavaScript, ActionScript 1, 2, 3 , Java, Lua, C#, C++ Codepen equations for organic motion15 Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 14 Robert penner’s easing functions – a collection of swappable functions that add flavor to motion, 2014. http://www.robertpenner.com/easing/ 15 Codepen – organic motions, 2014. http://codepen.io/soulwire/pen/kqHxB
  • 27. Tweening and Easing Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 28. Tweening and Easing Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Tween . . . Positions and velocities (mimic physics) Scaling Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Timing Behaviour Particles Conclusion
  • 29. Juice up your game feel Shakes Simon Weis Definitions Motivation Game objects, camera Juice up your Game Feel Random or Drag Positions Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX y y x Feeling of impact and weight. Particles x Conclusion
  • 30. Flashes Juice up your game feel Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Flash into a color/back to original color Game objects, whole screen, background (for contrast) Timing behaviour ⇒ tweening functions Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 31. SpriteFX Juice up your game feel Simon Weis Definitions Motivation Sprites that serve as overlays or underlays for any graphical effect Juice up your Game Feel Music and SoundFX Simple pallets Combine with easing functions Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 32. SpriteFX Juice up your game feel Simon Weis Definitions Motivation Sprites that serve as overlays or underlays for any graphical effect Juice up your Game Feel Music and SoundFX Simple pallets Combine with easing functions Know Your Math Foundations Linear – Look at that sky! Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 33. SpriteFX Juice up your game feel Simon Weis Definitions Motivation Sprites that serve as overlays or underlays for any graphical effect Juice up your Game Feel Music and SoundFX Simple pallets Combine with easing functions Know Your Math Foundations Linear – Look at that sky! Radial – neon lamp Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 34. SpriteFX Juice up your game feel Simon Weis Definitions Motivation Sprites that serve as overlays or underlays for any graphical effect Juice up your Game Feel Music and SoundFX Simple pallets Combine with easing functions Know Your Math Foundations Linear – Look at that sky! Radial – neon lamp Vignette & vintage Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 35. SpriteFX Juice up your game feel Simon Weis Definitions Motivation Sprites that serve as overlays or underlays for any graphical effect Juice up your Game Feel Music and SoundFX Simple pallets Combine with easing functions Know Your Math Foundations Linear – Look at that sky! Radial – neon lamp Vignette & vintage Scanlines – retro Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 36. SpriteFX Juice up your game feel Simon Weis Definitions Motivation Sprites that serve as overlays or underlays for any graphical effect Juice up your Game Feel Music and SoundFX Simple pallets Combine with easing functions Know Your Math Foundations Linear – Look at that sky! Radial – neon lamp Vignette & vintage Scanlines – retro Change the Draworder Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 37. Particles Juice up your game feel Simon Weis Definitions One just can not have too many particles. Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 38. Juice up your game feel Particles Simon Weis Definitions Motivation No drawing skills required – simple shapes or SpriteFX Change/modulate color/alpha 16 Many References Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion 16 Wikipedia, 2014. http://www.de.wikipedia.org[Partikelsystem] Daniel Shiffman. The Nature of Code. Magic Book Project, 2012 www.di.ubi.pt. Video game technologies – particle systems, 2014. http://www.di.ubi.pt/~agomes/tjv/teoricas/09-particles.pdf Daniel Church. Gamedevtuts – make your game pop with particle effects and quadtrees, 2014. http://gamedevelopment.tutsplus.com/tutorials/ make-your-game-pop-with-particle-effects-and-quadtrees--gamedev-2138 Mike McClelland. Gamedev.net – make a particle explosion effect, 2014. http://www.gamedev.net/page/resources/_/creative/visual-arts/ make-a-particle-explosion-effect-r2701
  • 39. Particles – Physical Background and Code Juice up your game feel Simon Weis Movement – Newton-equations Definitions Motivation F =m·a Juice up your Game Feel t1 v= x= t0 t1 t0 a dt = a · t + v 0 Music and SoundFX Simple pallets Know Your Math Foundations 2 v dt = 1/2a · t + v 0 · t + x 0 Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 40. Particles – Physical Background and Code Juice up your game feel Simon Weis Movement – Newton-equations Definitions Motivation F =m·a Juice up your Game Feel t1 v= x= t0 t1 t0 a dt = a · t + v 0 Music and SoundFX Simple pallets Know Your Math Foundations 2 v dt = 1/2a · t + v 0 · t + x 0 Tweening and Easing Shakes Flashes SpriteFX Stokes friction Particles F r = −6πr ηv = R · v Conclusion
  • 41. Particles – Physical Background and Code Juice up your game feel Simon Weis Movement – Newton-equations Definitions Motivation F =m·a Juice up your Game Feel t1 v= x= t0 t1 t0 a dt = a · t + v 0 Music and SoundFX Simple pallets Know Your Math Foundations 2 v dt = 1/2a · t + v 0 · t + x 0 Tweening and Easing Shakes Flashes SpriteFX Stokes friction Particles F r = −6πr ηv = R · v Does this make sense to you? v = ( v * R + a * dt ) ; x = x + v * dt ; Conclusion
  • 42. Particles Juice up your game feel Simon Weis Definitions Motivation Some possible applications: Juice up your Game Feel Music and SoundFX smoke, sparks, weather, wind, raindrops and rainspalesh, snow, flashes, clouds in the sky, bullets, fire, stars, explosions, fluids, falling leaves, lasers, bullet time trails, fog, sunrays, rocket exhaust, water, flying birds, bouncing balls, desintegrating asteroids, grass, mist and smoke, spell-Effects, even hair and feathers and many other effects Simple pallets Know Your Math Foundations Tweening and Easing Shakes Flashes SpriteFX Particles Conclusion
  • 43. Juice up your game feel Conclusion Simon Weis Definitions Motivation Juice up your Game Feel Music and SoundFX Simple pallets Know Your Math Foundations Tweening and Easing Compare! Shakes Flashes SpriteFX Particles Conclusion
  • 45. References I Juice up your game feel Simon Weis Audacity, 2014. http://audacity.sourceforge.net/?lang=de. Audiosauna – free software for making songs online, 2014. http://www.audiosauna.com/. Bfxr, 2014. http://www.bfxr.net/. Codepen – organic motions, 2014. http://codepen.io/soulwire/pen/kqHxB. Color blender, 2014. http://meyerweb.com/eric/tools/color-blend/. Colorlovers, 2014. http://www.colourlovers.com/palettes. Lmms – linux multimedia studio, 2014. http://lmms.sourceforge.net/. Robert penner’s easing functions – a collection of swappable functions that add flavor to motion, 2014. http://www.robertpenner.com/easing/. Sfxr – simple sound effects generator, 2014. http://www.drpetter.se/project_sfxr.html. tigsource – share your pallets, 2014. http://forums.tigsource.com/index.php?topic=25396.0.
  • 46. References II Juice up your game feel Simon Weis Wikipedia, 2014. http://www.de.wikipedia.org. Wolframtones, 2014. http://tones.wolfram.com/. Daniel Church. Gamedevtuts – make your game pop with particle effects and quadtrees, 2014. http://gamedevelopment.tutsplus.com/tutorials/ make-your-game-pop-with-particle-effects-and-quadtrees--gamedev-2138. Martin Jonasson and Petri Purho. Youtube – juice it or loose it, 2012. http://www.youtube.com/watch?v=Fy0aCDmgnxg. Mike McClelland. Gamedev.net – make a particle explosion effect, 2014. http://www.gamedev.net/page/resources/_/creative/visual-arts/ make-a-particle-explosion-effect-r2701. Daniel Shiffman. The Nature of Code. Magic Book Project, 2012. Steve Swink. Game Feel, A gamer’s guide to virtual sensation. Elsevier, 2009. www.di.ubi.pt. Video game technologies – particle systems, 2014. http://www.di.ubi.pt/~agomes/tjv/teoricas/09-particles.pdf.