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| Event | Alert text |
|---|
Grab magnet: 1st and 2nd time | "Grabbed" + (magnet location) + ", W A S D keys move in 4 directions. Press Space to release." *See "Magnet Locations Used for Text Alerts" below
|
| Grab magnet: 3rd and 4th time3rd time onward | "Grabbed" + (magnet location) + ". Press Space to release." *See "Magnet Locations Used for Text Alerts" below
|
Grab magnet: Any time after 2nd grab, and is directly left or right of a coil. | "Grabbed" + (magnet location) + ", try 1 2 3 keys to slide different speeds left and right. Press Shift to stop slide. Press Space to release." *See "Magnet Locations Used for Text Alerts" below
|
| Grab magnet: 5th time onward | "Grabbed" + (magnet location) + ". Press Space to release." *See "Magnet Locations Used for Text Alerts" below
|
| Brightness Brightness peaks and falls off | See "Bulb Brightness and Voltmeter Text Alerts" below. |
| Voltage peaks and falls off | See "Bulb Brightness and Voltmeter Text Alerts" below. |
| Release magnet | "Released" + (magnet location). *See "Magnet Locations Used for Text Alerts" below |
| Bump Coil | "Bumped coil" |
| Bump Edge | "At edge of play area." |
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Aside: Regions 9, 10, and 11 are trickier to describe succinctly. Opted for a simpler description as this alert may not happen often, and subsequent alerts will provide clarification.
Example Interaction with Text
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Alerts
First and Second time grabbing magnet (WASD prompt on grab)
- Pressed tab.
- Focus moved to magnet
- Screen reader would announce button label ("Grab magnet").
- Press enter.
- Text alert: "Grabbed (location), W A S D keys move in 4 directions, press Space to release."
- 1 2 3, or cursor keys pressed
- Sonification sounds are heard
- Bump Coil ("Bumped coil") and Bump Edge ("At edge of play area") alerts fired if occurred.
- Changes to PDOM descriptions occur as interaction proceeds.
- Press space.
- Text alert: "(Magnet Release Text Alert)" according to the magnet location as depicted in diagram above.
- Keyboard focus is on magnet button.
- If Tab is pressed
- Text alert: "(Magnet Release Text Alert)" according to the magnet location as depicted in diagram above.
- Keyboard focus moves to next focusable item.
Third to Fifth time grabbing magnet (Slide prompt on grab)
- Pressed tab.
- Focus moved to magnet
- Screen reader would announce button label ("Grab magnet") and associated aria-describedby text ("Select this to move the magnet").
- Press enter.
- Text alert: "Grabbed (location), try 1 2 3 keys slide different speeds left and right. Press 4 directions, press Space to release."
- 1 2 3, or cursor keys pressed
- Sonification sounds are heard
- Bump Coil ("Bumped coil") and Bump Edge ("At edge of play area") alerts fired if occurred.
- Changes to PDOM descriptions occur as interaction proceeds.
- Press space.
- Text alert: "Released (Magnet Release Text Alertlocation)" according to the magnet location as depicted in diagram above.
- Keyboard focus is on magnet button.
- If Tab is pressed
- Text alert: "Released (Magnet Release Text Alertlocation)" according to the magnet location as depicted in diagram above.
- Keyboard focus moves to next focusable item.
Sixth time Third to Fifth time grabbing magnet (Keyboard help Slide prompt on grab)
- Pressed tab.
- Focus moved to magnet
- Screen reader would announce button label ("Grab magnet") and associated aria-describedby text ("Select this to move the magnet").
- Press enter.
- Text alert: "Grabbed (location), also see keyboard shortcuts under Sim Resourcestry 1 2 3 keys slide different speeds left and right. Press Space to release."
- 1 2 3, or cursor keys pressed
- Sonification sounds are heard
- Bump Coil ("Bumped coil") and Bump Edge ("At edge of play area") alerts fired if occurred.
- Changes to PDOM descriptions occur as interaction proceeds.
- Press space.
- Text alert: "Released (Magnet Release Text Alertlocation)" according to the magnet location as depicted in diagram above.
- Keyboard focus is on magnet button.
- If Tab is pressed
- Text alert: "Released (Magnet Release Text Alertlocation)" according to the magnet location as depicted in diagram above.
- Keyboard focus moves to next focusable item.
Seventh Sixth time on-wards (Shortened grab alert)
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