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Enhancing the .Hype. Minigolf Physics Engine: Improvements in Graphics and Gameplay

This outline presents an analysis of the .Hype. Minigolf engine, detailing improvements made in key areas like rendering, physics, and user interface. Explore the historical context since its original release, understand core components, and discover advancements such as better lighting models and collision detection. Key issues like depth perception on nonplanar surfaces and the integration of an intuitive power bar for player feedback are also addressed. This document aims to provide a comprehensive overview for developers and enthusiasts seeking to enhance the gaming experience.

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Enhancing the .Hype. Minigolf Physics Engine: Improvements in Graphics and Gameplay

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Presentation Transcript

  1. Hype Minigolf Natale Letizia IT-University of Copenhagen Engine Programming

  2. Outline • Latest improvements • Original release overview • Core engine description • Screencasts • Conclusions

  3. Last • Need for a better graphics – rendering issues • Impossible to perceive depth on nonplanar surfaces – need to define a different illumination setting • Gravity and slopes – physics • A ball with zero velocity on an inclined plane should roll down due to gravity • A power bar - GUI enhancements • Players need feedback for shooting

  4. Overview of the engine • Core components • Rendering • Mathematics • Physics • Sound • DataBase • Graphical User Interface

  5. Renderingissues

  6. Rendering • Improvements A different illumination setting • Ambient, diffuse and specular light set • Define a better shading model of the objects • Basics of the original • Camera and parameters setting (POV, translation, rotation)

  7. Mathematics • Algebra, matrices and vectors operations • A vector structure is used such as to represent both vertices and vectors (norms, directions, forces, etc) • Basic operations supported, main: • Extract magnitude of a vector, or give me the square of it • Normalize a vector • Dot product • Cross product • Scaling (or vector per scalar product) • Translation (or vectors sum) • Difference between vectors

  8. Physics

  9. Physics • Improvements • Gravity parallel force • Basics of the original A simulation loop, which comprises the following Parts and features: • Euler integrator • Collision detection/response • Contact types

  10. More onphysics • Eulerintegrator Basics step: • New velocity (target) = previousvelocity+(current force*(deltaT/mass)) • New position = previous position + (currentspeed*deltaT) • Collisiondetection/response • Find interpenetration • NO -> check ifcontact/collision (distance ball-plane) collisionif non restingcontact, prepare for response • YES -> reduce the deltaT of the integration step as the half of current time to target, • Contact types (basedon the coeff of restitution) • Walls bump • Betweentilesmovement

  11. GUI – power bar

  12. GUI – UIMS + HUD MFC menu + HUD

  13. GUI • Improvements A power bar • Basics of the original • Microsoft MFC UIMS • On game HUD

  14. Sound • Basic feedback Windows audio Success Collision

  15. Database • Support for the operations • SELECT • SHOW • INSERT As to manage highscores, course loading, user profiles

  16. Screencasts Let’s see the game on play!!

  17. Original

  18. Improved

  19. Conclusions • Further enhancements GUI: Improving usability Physics: Use RK4 (a more accurate integrator - but not as fast as Euler)

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