Touch Screen Gesture Control for Multiple Game Characters
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Solution Overview
Problem
Portable handheld video game systems face challenges in allowing a single player to control multiple, independently movable digital objects on a scaled-down gaming platform, as traditional joystick controls are not practical for such systems.
Innovation Solution
The implementation of a touch screen-based system where players use a stylus to draw strokes or gestures on the screen to control digital objects, allowing for flexible manipulation of game characters, with specific strokes determining the actions and movements of individual or multiple characters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple joysticks are provided to control multiple characters, then control capability is improved, but device complexity increases
Solution Approach 1:
The touch screen serves multiple functions: it displays game information and simultaneously acts as a control interface for multiple characters. By detecting touch positions and gestures on the screen, the system enables a single player to control multiple characters without requiring separate joysticks for each character, thus achieving multi-functionality and reducing device complexity
Solution Approach 2:
The system creates virtual control representations on the touch screen by detecting touch gestures and mapping them to character control actions. The touch screen acts as a virtual copy of physical control devices, translating finger movements into control commands for multiple characters simultaneously
2Device complexity
If a single joystick is used to control multiple characters, then device complexity is reduced, but ease of operation deteriorates
Solution Approach 1:
The system transitions from one-dimensional control (single joystick) to two-dimensional control by utilizing the touch screen surface. By detecting the position, direction, and gesture of touches across the screen surface, the system enables intuitive control of multiple characters through spatial relationships and gestures, significantly improving ease of operation
Solution Approach 2:
The system replaces the mechanical joystick control system with a touch-based gesture recognition system. By substituting physical mechanical inputs with touch gestures detected on the screen, the system achieves more intuitive and flexible control while maintaining simplicity
3Ease of operation
If traditional joystick control is used in portable systems, then ease of operation is maintained, but adaptability to control multiple objects deteriorates
Solution Approach 1:
The touch screen integrates display and control functions, enabling a single interface to handle control of multiple characters and objects. The system detects different types of touches (single tap, double tap, drag gestures) and interprets them as different control commands for different characters, providing universal control capability while maintaining ease of use
Solution Approach 2:
The system dynamically adapts the control mechanism based on the game state and number of characters to be controlled. By detecting touch gestures and their positions, the system can switch between controlling single characters or multiple characters simultaneously, providing dynamic adaptability that maintains ease of operation
Data Source
AI summary
Methods and apparatus for controlling movement of multiple independent animated objects such as characters displayed on a display use zone detection and touch stroke direction. A player wishing to move the digital objects can use a stylus or other touch to draw strokes or gestures on the screen. Different strokes can correspond to different types of control inputs. For example, based on where a stroke begins and ends on the screen relative to character position, different animated characters can be selected and controlled. Some strokes control only one animated character to move in a particular direction, whereas other strokes can control multiple objects to move in a coordinated manner.