Motion Blocks - Practice

So, today we will do practice of Motion blocks till what we have covered by making a small project.

Project: Animated Traffic Scene

Objective: Create an animation where two cars and a bike move around each other smoothly using Go to X-Y and Glide blocks.

This project will help students understand how to:

• Use Go to X-Y to set starting positions.
• Use Glide blocks to make objects move smoothly across the screen.
• Arrange multiple moving objects in an animated loop.

Steps to Create the Project:

1. Choose Sprites and Backdrop:

• Add two car sprites and one bike sprite from the Scratch library.
• Choose a city road backdrop to create a realistic environment.

2. Set Initial Positions:

Each sprite should start from a fixed position using the Go to X-Y block.

• Car 1: Go to X: -202, Y: -96
• Car 2: Go to X: -165, Y: -127
• Bike: Go to X: -242, Y: -46

This ensures all vehicles begin from a specific location when the animation starts.

3. Create Movement Paths:

Each vehicle should move smoothly to a new position using the Glide block.

• Car 1: Glide 2 secs to (248, -101)
• Car 2: Glide 3 secs to (189, -126)
• Bike: Glide 5 secs to (218, -47)

These values ensure the cars and bike move at different speeds, making the animation more realistic.

4. Use the 'When Green Flag Clicked' Block:

• Attach the movement script to When Green Flag Clicked for all three sprites.
• This ensures that all vehicles start moving when the project runs.

5. Wrap in a Forever Loop:

• Place all movements inside a Forever loop so that the animation never stops.
• This makes the vehicles continuously move in a loop around the road.

Understanding the Forever Loop

A Forever loop is a control block that repeats actions infinitely.

• Why use a Forever Loop?
  • Without it, the vehicles would move only once and then stop.
  • With the loop, they will keep moving continuously, making the animation look natural.

Example Script:

• This script makes a sprite move back and forth endlessly.

Tasks for Forever loop:

1. Make a Sprite Move Continuously

         Objective: Make a sprite move across the screen forever.

           Steps:

1. Choose a sprite (e.g., a car, cat, or rocket).

Add the following script:

2. Make a Sprite Change Colors Forever

      Objective: Continuously change the sprite's color.

       Steps:

1. Choose any sprite.

Add this script:

Expected Outcome:

The two cars and the bike should move around each other smoothly without stopping, creating an animated traffic movement.

🚗🏍️ Let me know if you need any refinements! 🚦