Algodoo

How to change athletes or add or remove athletes.
1. Copy the car, delete and/or change the color.
2. Go to the finish and find the red icon and change its script in postStep.
3. Add or remove "scene.[athletename]Time = 0" for each contestant you add or remove.
4. Copy the timer and change the script.
5. Copy or remove the sensor at the bottom of the white pole, and change the sensor's script.
How to change the landscape:
1. Sketch out the landscape that you want to add or remove some landscape, or cut the landscape.
2. Change the landscape you made to [93, 93, 69, 100].
3. Repeat until you're okay with the landscape.
MAKE SURE TO TEST IT FIRST TO ENSURE THAT THE LANDSCAPE IS ABLE TO BE PROGRESSED.