sjhalasz's Recent Projects

Basketball II

This is a simulation of a basketball. You can move the ball by moving the mouse pointer over it.

tilt floor basketball II

This is a simulation of a basketball on a tilted floor. You can hit the basketball with the hand and you can tilt the floor to a different angle by clicking on it and dragging up or down. How it works: The basketball has variables for speed in the x and y directions. The stage sends gravity messages that periodically accelerate the ball downward. When the ball hits a surface the x and y speeds are reflected according to the rules of trigonometry, and the speed is reduced by a decay factor. When the hand moves across the ball, the speed of movement of the hand in the x and y directions is detected and applied as an acceleration to the ball. To do: change the values of gravityx and gravityy in the stage and restart to see how this affects the behavior of the ball. Can you create "flubber"?

aplV0

Work in progress...

Cat Dance

The cat and the duck are dancing swing. Can you make them dance a waltz?

Cat I

When the green flag is clicked, the cat walks around the edge of the screen. Can you change this to make the cat walk around the edge of the screen in the other direction when you press the space bar? It's not as easy as you may think! Hint: You need to add a script that begins with the block "when space key pressed" from the Control section. You need to add a variable for the direction, forward or backwards, and you need to copy and modify new versions of the Cat's costumes to use when it is going backwards.

tilt floor basketball

This is a simulation of a basketball. You can lift it up with the mouse and drop it. The stage has a script for gravity which sends acceleration messages to the basketball. You can tilt the floor to a different angle by clicking on it with the mouse and dragging. Can you change this script to simulate hitting the basketball with the mouse pointer? Hint: it's like what the floor does when the ball hits it but you need to apply acceleration instead of deceleration.

dinner menu

Plan a restaurant meal for maximum profit by clicking on a picture of an item to add it to or remove it from the meal. The price is what a customer would pay for the meal you select. Warning: it's not simple!

basketball

This is a simulation of a basketball. You can accelerate the ball by moving the mouse pointer across it.

Cat and Balloon V

You can control the rodent with the mouse.