Conditional Statements Part 1

Conditional statements are used to direct the flow of the program.

if statements

These are often used to branch conditions. This example outputs through HTML using docuemtn.

Hacks

These hacks will teach you how to impliment various RPG features into your game ###

%%html

<output id="output"></output>

<script>
function intializeData(data = null) {
    // Define default values
    let scaleFactor = 9/16;
    let animationRate = 1;
    let position = [0, 0];

    // Check if data is provided
    if (data) {
        scaleFactor = data.SCALE_FACTOR || scaleFactor;
        animationRate = data.ANIMATION_RATE || animationRate;
        position = data.INIT_POSITION || position;
    }

    document.getElementById("output").innerHTML = `
        <p>Scale Factor: ${scaleFactor}</p>
        <p>Animation Rate: ${animationRate}</p>
        <p>Initial Position: ${position}</p>
    `;
}

var data = {
    SCALE_FACTOR: 1/1,
    ANIMATION_RATE: 25,
    INIT_POSITION: [100, 100]
}

// Uncomment one of the following lines to test the if statement in the function
//intializeData();
intializeData(data);

</script>

switch case statement

These are often used to branch code when there are a lot of options.

%%javascript

class GameObject {
    constructor() {
        this.velocity = { x: 0, y: 0 };
        this.direction = '';
        this.xVelocity = 1;
        this.yVelocity = 1;
    }

    handleKeyDown({ keyCode }) {
        switch (keyCode) {
            case 87: // 'W' key
                
                this.direction = 'up';
                break;
            case 65: // 'A' key
        
                this.direction = 'left';
                break;
            case 83: // 'S' key
               
                this.direction = 'down';
                break;
            case 68: // 'D' key
              
                this.direction = 'right';
                break;
        }
    }
}

// Example usage
const gameObject = new GameObject();
console.log('Initial State:', gameObject);

gameObject.handleKeyDown({ keyCode: 87 }); // Simulate 'W' key press
console.log('After W Key Press:', gameObject);

gameObject.handleKeyDown({ keyCode: 65 }); // Simulate 'A' key press
console.log('After A Key Press:', gameObject);

gameObject.handleKeyDown({ keyCode: 83 }); // Simulate 'S' key press
console.log('After S Key Press:', gameObject);

gameObject.handleKeyDown({ keyCode: 68 }); // Simulate 'D' key press
console.log('After D Key Press:', gameObject);

<IPython.core.display.Javascript object>