Antonio Pizzo is Associate Professor of Theatre and Multimedia at the University of Turin, Italy. Vincenzo Lombardo is Full Professor of Informatics at the University of Turin, Italy. Rossana Damiano is Associate Professor of Computer Science at the University of Turin, Italy.

• Contents Acknowledgments Preface Where to start? How this volume is organized Chapter 1: Introduction 1.1 Preliminary definitions 1.1.1 The fascination for interactivity 1.1.2 Digital, virtual, interactive 1.1.3 Interacting, participating, collaborating 1.2 Telling stories through actions 1.2.1 Dramatic media 1.2.2 Actions and events 1.2.3 Dramatic action 1.2.4 Narrative action 1.2.5 Sequence of actions 1.2.6 Generating events 1.3 Last general issues 1.3.1 Author, authorship, control 1.3.2 Characters or stories 1.3.3 The field of investigation 1.3.4 Database, narrative and video contents 1.3.5 Delimiting the field 1.4 A general model of analysis Chapter 2 - Dynamic Elements: the Units 2.1. What are the units 2.2 The logical relationship between the units 2.3 Organising the Multilinear Project 2.4. What separates the units 2.5. Tagging the units: metadata 2.6 Exercises 2.6.1 The flow chart of dynamic elements 2.6.2 The user actions Chapter 3 - Dynamic elements: the Agents 3.1 Agents and audience 3.2 Intelligent agents 3.2.1 Planning as improvisation 3.2.2 Planning as directing 3.2.3 Scripting as planning 3.3 Emotions and agents 3.3.1 The (mental) reality of emotions 3.3.2 The social component of emotions 3.3.3 Emotions as a behavioural drive 3.4 Exercises 3.4.1 Describing the state of the world 3.4.2 Writing the actions 3.4.3 Writing Preconditions and Effects 3.4.4 Simulating the execution 3.4.5 Starting from the goal state 3.4.6 Reusing the plan Chapter 4 - Display: audience, system, emotions 4.1 Participation 4.1.1 Narratology vs Ludology 4.1.2. Interaction vs Narration 4.1.3. Balancing the agency 4.1.4. Intensity of process 4.1.5. User’s action 4.1.6. Intelligible actions 4.2 Writing the interaction through the units 4.2.1. Interaction by navigating the map 4.2.2. Interaction by dialogues and behaviours 4.2.3. Interaction by physical actions 4.3 Emotions in computational systems 4.3.1 Coding characters’ emotions 4.3.2 The emotions of the audience 4.4. Cross media contents’ communication 4.5 Exercises Chapter 5 - Engines and systems: supporting creativity and dramatic tension 5.1 Systems and automation 5.2 System classification 5.3 Fully manual authorship 5.4 Manually authored database and automation for plot generation 5.4.1 Plot grammars 5.4.2 Constraints on plot generation 5.4.3 Planning for plot generation 5.4.4 Plot generation based on dramatic tension 5.5 Database and automation 5.6 Emergent narratives: joint automation of plot and database 5.6.1 Constraints on the plot and modifications of database elements 5.6.2 Plot and database modelled with constraints 5.6.3 Full plot automation and database simulation 5.7 General Considerations on Storytelling Systems 5.8 Exercises 5.8.1 The form to the story, or the application of a template 5.8.2 The constrained plot generation: preconditions and effects annotation 5.8.3 The dramatic tension of the story Chapter 6. Examples to know 6.1. 1966: Eliza 6.2. 1976: Adventure 6.3. 1978: Aspen Movie Map 6.4. 1987: Afternoon a story 6.5. 1987: City in transition: New Orleans 1983-86 6.6 1911: Angels 6.7 1993: Myst 6.8 1996: Pokémon 6.9 1999. Desert rain 6.10 2001:Can you see me now? 6.11 2003: Facade 6.12 2005: FearNot! 6.13 2006: DramaTour 6.14 2012: The Walking Dead 6.15 2013: Nothing for Dinner 6.16 2018:. Black mirror Bandersnatch 61.7 2029: The Invisible Guardian 6.18 2020: Down the Rabbit Hole Index .

Antonio Pizzo is Associate Professor of Theatre and Multimedia at the University of Turin, Italy. Vincenzo Lombardo is Full Professor of Informatics at the University of Turin, Italy. Rossana Damiano is Associate Professor of Computer Science at the University of Turin, Italy.

• Contents Acknowledgments Preface Where to start? How this volume is organized Chapter 1: Introduction 1.1 Preliminary definitions 1.1.1 The fascination for interactivity 1.1.2 Digital, virtual, interactive 1.1.3 Interacting, participating, collaborating 1.2 Telling stories through actions 1.2.1 Dramatic media 1.2.2 Actions and events 1.2.3 Dramatic action 1.2.4 Narrative action 1.2.5 Sequence of actions 1.2.6 Generating events 1.3 Last general issues 1.3.1 Author, authorship, control 1.3.2 Characters or stories 1.3.3 The field of investigation 1.3.4 Database, narrative and video contents 1.3.5 Delimiting the field 1.4 A general model of analysis Chapter 2 - Dynamic Elements: the Units 2.1. What are the units 2.2 The logical relationship between the units 2.3 Organising the Multilinear Project 2.4. What separates the units 2.5. Tagging the units: metadata 2.6 Exercises 2.6.1 The flow chart of dynamic elements 2.6.2 The user actions Chapter 3 - Dynamic elements: the Agents 3.1 Agents and audience 3.2 Intelligent agents 3.2.1 Planning as improvisation 3.2.2 Planning as directing 3.2.3 Scripting as planning 3.3 Emotions and agents 3.3.1 The (mental) reality of emotions 3.3.2 The social component of emotions 3.3.3 Emotions as a behavioural drive 3.4 Exercises 3.4.1 Describing the state of the world 3.4.2 Writing the actions 3.4.3 Writing Preconditions and Effects 3.4.4 Simulating the execution 3.4.5 Starting from the goal state 3.4.6 Reusing the plan Chapter 4 - Display: audience, system, emotions 4.1 Participation 4.1.1 Narratology vs Ludology 4.1.2. Interaction vs Narration 4.1.3. Balancing the agency 4.1.4. Intensity of process 4.1.5. User’s action 4.1.6. Intelligible actions 4.2 Writing the interaction through the units 4.2.1. Interaction by navigating the map 4.2.2. Interaction by dialogues and behaviours 4.2.3. Interaction by physical actions 4.3 Emotions in computational systems 4.3.1 Coding characters’ emotions 4.3.2 The emotions of the audience 4.4. Cross media contents’ communication 4.5 Exercises Chapter 5 - Engines and systems: supporting creativity and dramatic tension 5.1 Systems and automation 5.2 System classification 5.3 Fully manual authorship 5.4 Manually authored database and automation for plot generation 5.4.1 Plot grammars 5.4.2 Constraints on plot generation 5.4.3 Planning for plot generation 5.4.4 Plot generation based on dramatic tension 5.5 Database and automation 5.6 Emergent narratives: joint automation of plot and database 5.6.1 Constraints on the plot and modifications of database elements 5.6.2 Plot and database modelled with constraints 5.6.3 Full plot automation and database simulation 5.7 General Considerations on Storytelling Systems 5.8 Exercises 5.8.1 The form to the story, or the application of a template 5.8.2 The constrained plot generation: preconditions and effects annotation 5.8.3 The dramatic tension of the story Chapter 6. Examples to know 6.1. 1966: Eliza 6.2. 1976: Adventure 6.3. 1978: Aspen Movie Map 6.4. 1987: Afternoon a story 6.5. 1987: City in transition: New Orleans 1983-86 6.6 1911: Angels 6.7 1993: Myst 6.8 1996: Pokémon 6.9 1999. Desert rain 6.10 2001:Can you see me now? 6.11 2003: Facade 6.12 2005: FearNot! 6.13 2006: DramaTour 6.14 2012: The Walking Dead 6.15 2013: Nothing for Dinner 6.16 2018:. Black mirror Bandersnatch 61.7 2029: The Invisible Guardian 6.18 2020: Down the Rabbit Hole Index .

Antonio Pizzo is Associate Professor of Theatre and Multimedia at the University of Turin, Italy. Vincenzo Lombardo is Full Professor of Informatics at the University of Turin, Italy. Rossana Damiano is Associate Professor of Computer Science at the University of Turin, Italy.

• Contents Acknowledgments Preface Where to start? How this volume is organized Chapter 1: Introduction 1.1 Preliminary definitions 1.1.1 The fascination for interactivity 1.1.2 Digital, virtual, interactive 1.1.3 Interacting, participating, collaborating 1.2 Telling stories through actions 1.2.1 Dramatic media 1.2.2 Actions and events 1.2.3 Dramatic action 1.2.4 Narrative action 1.2.5 Sequence of actions 1.2.6 Generating events 1.3 Last general issues 1.3.1 Author, authorship, control 1.3.2 Characters or stories 1.3.3 The field of investigation 1.3.4 Database, narrative and video contents 1.3.5 Delimiting the field 1.4 A general model of analysis Chapter 2 - Dynamic Elements: the Units 2.1. What are the units 2.2 The logical relationship between the units 2.3 Organising the Multilinear Project 2.4. What separates the units 2.5. Tagging the units: metadata 2.6 Exercises 2.6.1 The flow chart of dynamic elements 2.6.2 The user actions Chapter 3 - Dynamic elements: the Agents 3.1 Agents and audience 3.2 Intelligent agents 3.2.1 Planning as improvisation 3.2.2 Planning as directing 3.2.3 Scripting as planning 3.3 Emotions and agents 3.3.1 The (mental) reality of emotions 3.3.2 The social component of emotions 3.3.3 Emotions as a behavioural drive 3.4 Exercises 3.4.1 Describing the state of the world 3.4.2 Writing the actions 3.4.3 Writing Preconditions and Effects 3.4.4 Simulating the execution 3.4.5 Starting from the goal state 3.4.6 Reusing the plan Chapter 4 - Display: audience, system, emotions 4.1 Participation 4.1.1 Narratology vs Ludology 4.1.2. Interaction vs Narration 4.1.3. Balancing the agency 4.1.4. Intensity of process 4.1.5. User’s action 4.1.6. Intelligible actions 4.2 Writing the interaction through the units 4.2.1. Interaction by navigating the map 4.2.2. Interaction by dialogues and behaviours 4.2.3. Interaction by physical actions 4.3 Emotions in computational systems 4.3.1 Coding characters’ emotions 4.3.2 The emotions of the audience 4.4. Cross media contents’ communication 4.5 Exercises Chapter 5 - Engines and systems: supporting creativity and dramatic tension 5.1 Systems and automation 5.2 System classification 5.3 Fully manual authorship 5.4 Manually authored database and automation for plot generation 5.4.1 Plot grammars 5.4.2 Constraints on plot generation 5.4.3 Planning for plot generation 5.4.4 Plot generation based on dramatic tension 5.5 Database and automation 5.6 Emergent narratives: joint automation of plot and database 5.6.1 Constraints on the plot and modifications of database elements 5.6.2 Plot and database modelled with constraints 5.6.3 Full plot automation and database simulation 5.7 General Considerations on Storytelling Systems 5.8 Exercises 5.8.1 The form to the story, or the application of a template 5.8.2 The constrained plot generation: preconditions and effects annotation 5.8.3 The dramatic tension of the story Chapter 6. Examples to know 6.1. 1966: Eliza 6.2. 1976: Adventure 6.3. 1978: Aspen Movie Map 6.4. 1987: Afternoon a story 6.5. 1987: City in transition: New Orleans 1983-86 6.6 1911: Angels 6.7 1993: Myst 6.8 1996: Pokémon 6.9 1999. Desert rain 6.10 2001:Can you see me now? 6.11 2003: Facade 6.12 2005: FearNot! 6.13 2006: DramaTour 6.14 2012: The Walking Dead 6.15 2013: Nothing for Dinner 6.16 2018:. Black mirror Bandersnatch 61.7 2029: The Invisible Guardian 6.18 2020: Down the Rabbit Hole Index .