Wording for assignment is changed to match #435
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the provided solution. See discussion TEALSK12#344
students. This in part includes instructions on creating and setting a speed variable.
jinglebiscuits
suggested changes
May 22, 2024
| @@ -9,5 +9,5 @@ | |||
| * Move Dino up 1 unit at a time when you press the **arrow up** key. You must use the **change y by** block. | |||
| * Move Dino down 1 unit at a time when you press the **arrow down** key. You must use the **change y by** block. | |||
| * Don't let Dino leave the screen. | |||
| * Don't let Dino go through the platform. | |||
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It's not obvious to me that this is a necessary change. I think as written, the assignment is fine.
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| 1. Use a **when green flag is clicked** block to place Dino at the top of the stage. No animation, just use a **set y to** block. | ||
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| 2. Use two more **when green flag is clicked**, to start two **forever** loops that make Dino fall to the bottom of the stage. One will model gravity by subtracting a constant amount from Dino's speed. The second will move Dino by his current speed. | ||
| 2. Create a variable named **speed**. Set **speed** to zero **when green flag is clicked**. | ||
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| 3. When Dino touches the ground, Dino stops falling. "*Stops falling*" means Dino's speed is set to zero and stays zero as long as he is touching the ground. The **touching color ?** block can be used to detect the grass in the background layer. | ||
| 3. Use two more **when green flag is clicked** blocks, to start two **forever** loops to make Dino fall. | ||
| * One will model gravity by subtracting a constant amount from Dino's speed. Initially try subtracting 0.5 from speed. | ||
| * The second will move Dino in the y-direction by the current speed. | ||
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| 4. When Dino touches the ground, Dino stops falling. "*Stops falling*" means Dino's speed is set to zero and stays zero if Dino is touching the ground. The **touching color ?** block can be used to detect the grass in the background layer. |
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If we change this section, it should be completely rewritten. "Write a script for the Dino sprite so that:" is not an appropriate lead into "Use a when green flag is clicked ...".
Could you propose a change that makes this whole section clearer?
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Wording for assignment is changed to match the expected solution. See discussion
[https://github.com//discussions/344#discussioncomment-4118030].