Scratch

Project Notes

Printing numbers with the stamp tool. This program has a single sprite called digit, which responds to messages print_number, and print_scientific. It uses four global variables: print_x, print_y, print_after_decimal, and print_number to communicate parameters. When print_number is broadcast, the digit sprite prints out the number by stamping the digits with the bottom right of the final number at print_x, print_y. This version can print up to 15 places to the right of the decimal point, controlled by print_after_decimal. When print_scientific is called, the number is printed in "scientific" notation, with a power of 10 after the letter E (unless the exponent is 0, then the output is the same as print_decimal). After the call, print_number is 0 and print_x is to the left of the printed number. print_y is unchanged. There is a simple test script on the stage: clicking on s broadcasts print_scientific, d broadcasts print_number, while space clears the display.