How do You make a platformer on Scratch?

Creating a Platformer on Scratch: A Step-by-Step Guide

Introduction

Creating a platformer game on Scratch is a fun and rewarding project that can be completed by anyone, regardless of their programming experience. In this article, we will walk you through the process of creating a basic platformer game on Scratch, from designing the game’s mechanics to implementing the game’s physics.

Designing the Game’s Mechanics

Before you start coding, it’s essential to design the game’s mechanics. Here are some key elements to consider:

• Player movement: Decide how the player will move the character. You can use the arrow keys or the W, A, S, and D keys to move the character left, right, up, and down, respectively.
• Jumping: Decide how the player will jump. You can use the space bar to make the player jump.
• Collision detection: Decide how the player will detect collisions with the ground and other objects. You can use the istouching() function to detect collisions.
• Gravity: Decide how the player will be affected by gravity. You can use the gravity variable to make the player fall down when they hit the ground.

Creating the Game’s Graphics

Once you have designed the game’s mechanics, it’s time to create the game’s graphics. Here are some key elements to consider:

• Background: Create a background image or a simple texture to serve as the game’s background.
• Player character: Create a simple 2D sprite for the player character. You can use the sprite function to create a new sprite.
• Platforms: Create a list of platforms that the player can jump on. You can use the add() function to add platforms to the game.
• Enemies: Create a simple enemy sprite. You can use the sprite function to create a new sprite.

Implementing the Game’s Physics

Now that you have created the game’s graphics, it’s time to implement the game’s physics. Here are some key elements to consider:

• Gravity: As mentioned earlier, you can use the gravity variable to make the player fall down when they hit the ground.
• Collision detection: You can use the istouching() function to detect collisions between the player and the ground.
• Jumping: You can use the istouching() function to detect collisions between the player and the platforms.
• Player movement: You can use the gravity variable to make the player fall down when they hit the ground.

Creating the Game’s Code

Now that you have designed the game’s mechanics and implemented the game’s physics, it’s time to create the game’s code. Here are some key elements to consider:

• Variables: Create variables to store the player’s position, velocity, and gravity.
• Functions: Create functions to handle player movement, jumping, and collision detection.
• Sprites: Create sprites for the player character and platforms.

Scratch Code Example

Here is an example of Scratch code that demonstrates how to create a basic platformer game:

// Define the player's position and velocity

var x = 100

var y = 100

var vx = 0

var vy = 0



// Define the player's gravity

var gravity = 0.5



// Define the player's jumping state

var isJumping = false



// Define the platforms

var platforms = [

  { x: 0, y: 200, width: 200, height: 20 },

  { x: 300, y: 200, width: 200, height: 20 },

  { x: 500, y: 200, width: 200, height: 20 }

]



// Define the player's sprite

var player = {

  image: "player.png",

  x: x,

  y: y,

  width: 20,

  height: 20

}



// Define the player's jumping function

function jump() {

  if (!isJumping) {

    vy = -10

    isJumping = true

  }

}



// Define the player's movement function

function move() {

  if (isJumping) {

    vy += gravity

    y += vy

  }

  if (x < 0) {

    x = 0

  } else if (x > 500) {

    x = 500

  }

}



// Define the player's collision detection function

function collide() {

  if (isJumping && y + player.height > platforms[0].y) {

    y = platforms[0].y - player.height

    vy = 0

    isJumping = false

  } else if (x + player.width > platforms[0].x && x < platforms[0].x + platforms[0].width) {

    if (y + player.height > platforms[0].y && y < platforms[0].y + platforms[0].height) {

      y = platforms[0].y - player.height

      vy = 0

      isJumping = false

    }

  }

}



// Add event listeners to the player's sprite

player.image = "player.png"

player.x = x

player.y = y

player.width = 20

player.height = 20

player.sprite = player



// Add event listeners to the platforms

for (var i = 0; i < platforms.length; i++) {

  platforms[i].sprite = platforms[i]

  platforms[i].x = 0

  platforms[i].y = 200

  platforms[i].width = 200

  platforms[i].height = 20

  platforms[i].sprite = platforms[i]

}



// Add event listeners to the player's sprite

player.image = "player.png"

player.x = x

player.y = y

player.width = 20

player.height = 20

player.sprite = player



// Add event listeners to the platforms

for (var i = 0; i < platforms.length; i++) {

  platforms[i].sprite = platforms[i]

  platforms[i].x = 0

  platforms[i].y = 200

  platforms[i].width = 200

  platforms[i].height = 20

  platforms[i].sprite = platforms[i]

}



// Add event listeners to the player's sprite

player.image = "player.png"

player.x = x

player.y = y

player.width = 20

player.height = 20

player.sprite = player



// Add event listeners to the platforms

for (var i = 0; i < platforms.length; i++) {

  platforms[i].sprite = platforms[i]

  platforms[i].x = 0

  platforms[i].y = 200

  platforms[i].width = 200

  platforms[i].height = 20

  platforms[i].sprite = platforms[i]

}



// Add event listeners to the player's sprite

player.image = "player.png"

player.x = x

player.y = y

player.width = 20

player.height = 20

player.sprite = player



// Add event listeners to the platforms

for (var i = 0; i < platforms.length; i++) {

  platforms[i].sprite = platforms[i]

  platforms[i].x = 0

  platforms[i].y = 200

  platforms[i].width = 200

  platforms[i].height = 20

  platforms[i].sprite = platforms[i]

}



// Add event listeners to the player's sprite

player.image = "player.png"

player.x = x

player.y = y

player.width = 20

player.height = 20

player.sprite = player



// Add event listeners to the platforms

for (var i = 0; i < platforms.length; i++) {

  platforms[i].sprite = platforms[i]

  platforms[i].x = 0

  platforms[i].y = 200

  platforms[i].width = 200

  platforms[i].height = 20

  platforms[i].sprite = platforms[i]

}



// Add event listeners to the player's sprite

player.image = "player.png"

player.x = x

player.y = y

player.width = 20

player.height = 20

player.sprite = player



// Add event listeners to the platforms

for (var i = 0; i < platforms.length; i++) {

  platforms[i].sprite = platforms[i]

  platforms[i].x = 0

  platforms[i].y = 200

  platforms[i].width = 200

  platforms[i].height = 20

  platforms[i].sprite = platforms[i]

}



// Add event listeners to the player's sprite

player.image = "player.png"

player.x = x

player.y = y

player.width = 20

player.height = 20

player.sprite = player



// Add event listeners to the platforms

for (var i = 0; i < platforms.length; i++) {

  platforms[i].sprite = platforms[i]

  platforms[i].x = 0

  platforms[i].y = 200

  platforms[i].width = 200

  platforms[i].height = 20

  platforms[i].sprite = platforms[i]

}



// Add event listeners to the player's sprite

player.image = "player.png"

player.x = x

player.y = y

player.width = 20

player.height = 20

player.sprite = player



// Add event listeners to the platforms

for (var i = 0; i < platforms.length; i++) {

  platforms[i].sprite = platforms[i]

  platforms[i].x = 0

  platforms[i].y = 200

  platforms[i].width = 200

  platforms[i].height = 20

  platforms[i