func initialiseBallDirection() {
// pick some random numbers to determine if the ball will move up or down
// and left or right initially.
var n int
n = random.GetRandomNumberInRange(1, 10)
var up bool
if isOddNumber(n) {
up = true // we want the ball to move up - decreasing Y coordinate
} else {
up = false // we want the ball to move down - increasing y coordinate
}
n = random.GetRandomNumberInRange(1, 10)
var left bool
if isOddNumber(n) {
left = true // we want the ball to move left - decreasing X coordiiate
} else {
left = false //we want the ball to move right - increasing X coordinate
}
// pick two random mumbers for the initial direction
ballDirX = float64(random.GetRandomNumberInRange(1, 10))
ballDirY = float64(random.GetRandomNumberInRange(1, 10))
// are we moving left?
if left {
ballDirX = ballDirX * -1
} // otherwise the ball is moving right so ballDirX should be positive
// are we moving up?
if up {
// yes - make the number negative
ballDirY = ballDirY * -1
} // otherwise the ball is moving dwon so ballDirY should be positive
// the vector now needs to be normalised
setBallDirection(ballDirX, ballDirY)
}
func main() {
// declare some varaibels.
// a and b are the variabels we are going to use to hold the question in
var a int
var b int
// answer is the variable we are going to use for your answer
var answer int
// Tell the user what the program does.
fmt.Println("The timesquiz shows you how to use loops.")
fmt.Println("Can you remember your times tables?")
fmt.Println("")
// use random numbers again!
// The program will pick a number between 1 and 12, including 1 and 12
// and assign it to the variables a and b
// If you run the program again, the value of a will be different because
// the computer will have picked a different number.
a = random.GetRandomNumberInRange(1, 12)
b = random.GetRandomNumberInRange(1, 12)
// Now we want to print the question
// What is a * b?
// but with the values of a and b
fmt.Print("What is ")
fmt.Print(a)
fmt.Print(" * ")
fmt.Print(b)
fmt.Println("?")
// now you have to read the users answer from the keyboard
// using the input using pattern
// now you need a loop!
// You have to keep looping around while the users answer is
// not equal to a * b
// You need to use the loop pattern for this
for {
// your loop statement block starts here!
// Now you need to use an if statement
// if the users answer was to large print out
// Sorry, your gueds was to big
// otherwise the users guess is too small so print out
// Sorry your guess was to small
// now tell the user to try again
// now you have to use the input pattern again to assign
// the users next guess to the answer variable
}
// Now we are outside the loop! So the user must have guessed
// correctly. Now you need to print Congratulations.
}
func main() {
// declare some varaibels.
// a and b are the variabels we are going to use to hold the question in
var a int
var b int
// answer is the variable we are going to use for your answer
var answer int
// Tell the user what the program does.
fmt.Println("The timesquestion program shows you how to use if and else.")
fmt.Println("Can you remember your times tables?")
fmt.Println("")
// This new!
// a and b are both set to a random number.
// The program will pick a number between 1 and 12, including 1 and 12
// and assign it to the variable a
// If you run the program again, the value of a will be different because
// the computer will have picked a different number.
a = random.GetRandomNumberInRange(1, 12)
// b is also picked randomly!
b = random.GetRandomNumberInRange(1, 12)
// Now we want to print the question
// What is a * b?
// but with the values of a and b
fmt.Print("What is ")
fmt.Print(a)
fmt.Print(" * ")
fmt.Print(b)
fmt.Println("?")
// now you have to read the users answer from the keyboard
// using the input using pattern
// Now you have to fill in the rest!
// Use the selection if else if pattern...
// if the users gues is exacly a*b then you have to print
// congratulations
// else if the users guess is to large print out
// Sorry you guess was to big and then print out the correct answer
// else the users guess must have been too small so print out
// Sorry your guess was too small and then print out the correct
// answer
// this sould be the last line!
// Run the program again and you'll be asked a different question!
fmt.Println("Run the program again to try another question.")
}