Python Projects (Coffee Machine, Pong Game)

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Python Projects

Notes from two small projects in the “Experience” hub.

Coffee Machine

Comparing key-values between two dictionaries

resource = {
    "water":  500,
    "milk":   500,
    "coffee": 500,
}
 
ingredients = {
    "water":  200,
    "milk":   200,
    "coffee": 200,
}
 
def is_resource_sufficient():
    for item in ingredients:
        if ingredients[item] < resource[item]:
            return False
            print(f"There is insufficient {item}")
 
# the item is the KEY, i.e., "water", "milk".

Pong Game

Turtle — moving by coordinate, not heading

If you want to move an object without changing its orientation, change its x and y coordinates instead of setting heading.

new_x = self.xcor() + 10
new_y = self.ycor() + 10
 
item.goto(new_x, new_y)

Bounce logic

Reverse the movement on y or x. If y was adding 10, then subtract 10.

Hit detection (without distance())

Check if the ball passes the paddle’s y-axis and if it is close to the middle of the paddle.

Calling functions inside the initializer

You can call functions inside the initializer (__init__).

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