Welcome to the exciting world of mouse click events! Today, we’re going to learn how clicking the left mouse button on different objects can create something called an “event.” This is a fun way to make things happen in computer programs.
Every object you see on the screen can have a special function called an onClick function. This function is like a set of instructions that tells the object what to do when you click on it. You can write these instructions to make the object do all sorts of cool things!
Let’s imagine we have an object called “monkey.” We can write an onClick function for the monkey so that when you click on it, the monkey takes three steps forward. It’s like telling the monkey, “Hey, when someone clicks on you, move three steps!”
Now, let’s try a fun challenge. We have a monkey and a turtle, and we want them to move towards a banana. We’ve already set up the onClick function for the monkey to move three steps. Now, let’s do the same for the turtle, but this time, we’ll make it move five steps when clicked.
When you run the program, you’ll see a little finger icon above the monkey and the turtle. This means they have an onClick function ready. Click on the turtle, and it will move five steps. Click on the monkey, and it will move three steps. Isn’t that cool?
Here’s a more advanced challenge. We have three bananas, and we want each banana to have its own onClick function. A quick way to do this is by using something called a for loop. This loop helps us set up an onClick function for each banana. When you click on a banana, the monkey will go to that banana.
We also have a crocodile in this challenge. We want the crocodile to turn so the monkey can reach the banana. We can write an onClick function for the crocodile to turn left when clicked.
When you run the program, you can click on the crocodile to make it turn. If you click on a banana, the monkey will move towards it. Try clicking on different objects and see what happens!
Now it’s your turn to experiment with mouse click events. Use your imagination and creativity to make objects move and interact with each other. Have fun coding!
Imagine you have a character on the screen, like a cat. Write an onClick function that makes the cat jump when you click on it. Use your creativity to decide how high the cat should jump and what happens when it lands. Share your code with the class and see what others have created!
Create a short story using different objects on the screen. Each object should have an onClick function that makes something happen in the story. For example, clicking on a door might open it, or clicking on a character might make them speak. Present your story to the class and let them interact with it!
Set up a race between the monkey and the turtle to reach a banana. Write onClick functions for both the monkey and the turtle, but add a twist: each click moves them a random number of steps. See who reaches the banana first and discuss how randomness affects the outcome!
Design a simple game where players must click on objects to score points. Each object should have an onClick function that adds points to the player’s score. Add a timer to make the game more challenging. Share your game with classmates and see who can get the highest score!
Work with a partner to write a program with several onClick functions. Then, swap programs with another pair and try to find and fix any bugs in their code. This will help you learn how to troubleshoot and improve your coding skills!
Here’s a sanitized version of the provided YouTube transcript:
—
[Music] Welcome to Click Me! Let’s learn about mouse click events. Clicking the left mouse button on an object creates an event. Each object has an onClick function that is called whenever you click on it. You can code the onClick function to perform specific actions.
Here’s an example of an onClick function for an object called “monkey.” When you click on the monkey, it will make the monkey step three times. So, when you write your onClick functions, just make sure you have the object named onClick, and then you can specify the actions you want to happen whenever you click on that object.
Let’s look at an example. Here’s a challenge where we’re going to use the onClick function to make the monkey move, along with our turtle object, to get our banana object. We already have the onClick function set up for our monkey, which makes it step three times when clicked. Now, let’s add one for the turtle. We will tell the turtle to step five times.
Now, when I run this, you’ll see a little finger icon appear above these objects, indicating that the onClick function is attached to them. You can click on the turtle, and it will step five times. Then, when you click on the monkey, it will step three times.
[Applause]
Here’s a challenge with three bananas, and we want to have an onClick function for each banana. One quick way to do that is to use a for loop. For each banana, I’m going to set up an onClick function. Within that function, I’m telling the monkey to go to the banana that was clicked.
Additionally, we want to have an onClick function for a crocodile. In this challenge, we want the crocodile to turn so the monkey can reach the banana. So, we can say the crocodile should turn left.
Now, let’s run this. Note that we do not have an onClick function for the monkey, so when I run it and click on the monkey, nothing happens except for a clap animation. However, I can click on the crocodile. If I click on a banana, the monkey should go to that banana.
Now, what do I need to do next? I’ll turn the crocodile and then click on this banana.
Alright, now it’s your turn to use mouse click events. Good luck!
[Music]
—
This version maintains the instructional content while removing any informal language and unnecessary details.
Mouse – A small device that you move with your hand to control the pointer on a computer screen. – Example sentence: I used the mouse to select the icon on my computer screen.
Click – Pressing a button on a mouse to select something on a computer screen. – Example sentence: To open the game, just click on the game icon with your mouse.
Function – A set of instructions in a program that performs a specific task. – Example sentence: We wrote a function to calculate the total score in our math game.
Monkey – A playful character often used in coding games to teach programming concepts. – Example sentence: The monkey in the coding game helped us learn how to use loops.
Turtle – A character in coding used to draw shapes and learn programming basics. – Example sentence: We used the turtle to draw a square on the screen by giving it commands.
Banana – An item often used in coding games as a reward or goal for characters like monkeys. – Example sentence: The monkey collected a banana each time it completed a coding challenge.
Event – An action that causes something to happen in a program, like clicking a button. – Example sentence: When you press the spacebar, it triggers an event that makes the character jump.
Program – A set of instructions that a computer follows to perform a task. – Example sentence: We wrote a program to make the robot move forward and turn left.
Loop – A sequence of instructions that repeats until a certain condition is met. – Example sentence: We used a loop to make the character dance five times in the game.
Crocodile – A character sometimes used in coding games to introduce challenges or obstacles. – Example sentence: The crocodile in the coding game blocked the path, and we had to write code to find a way around it.