Adding week3 assignment

coursera/second_course/week3/assignment/AnimalsFun.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"fmt"
+)
+
+type Animal struct {
+	food, locomotion, sound string
+}
+
+func (v Animal) Eat() {
+	fmt.Println(v.food)
+}
+
+func (v Animal) Move() {
+	fmt.Println(v.locomotion)
+}
+
+func (v Animal) Speak() {
+	fmt.Println(v.sound)
+}
+
+func main() {
+	m := map[string]Animal{
+		"cow" : Animal{"grass","walk","moo"},
+		"bird" : Animal{"worms","fly","peep"},
+		"snake" : Animal{"mice","slither","hsss"},
+	}
+	for{
+		fmt.Print(">")
+		an:="0"
+		ac:="0"
+		fmt.Scan(&an,&ac)
+		if ac=="eat"{
+			m[an].Eat()
+		} else if ac=="move"{
+			m[an].Move()
+		} else if ac=="speak"{
+			m[an].Speak()
+		}
+	}
+}

coursera/second_course/week3/assignment/animal.go

@@ -0,0 +1,92 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+)
+
+// shorter declaration option
+// type Animal struct {
+// 	food, locomotion, sound string
+// }
+
+type Animal struct {
+	food       string
+	locomotion string
+	noise      string
+}
+
+var cow Animal = Animal{"grass", "walk", "moo"}
+var bird Animal = Animal{"worms", "fly", "peep"}
+var snake Animal = Animal{"mice", "slither", "hiss"}
+
+func (a Animal) Eat() {
+	fmt.Println(a.food)
+}
+
+func (a Animal) Move() {
+	fmt.Println(a.locomotion)
+}
+
+func (a Animal) Speak() {
+	fmt.Println(a.noise)
+}
+
+func ParseUserInput(s string) []string {
+	noNewLine := strings.Trim(s, "\n")
+	return strings.Split(noNewLine, " ")
+
+}
+
+func ProcessCommand(cmd []string) {
+	switch cmd[0] {
+	case "cow":
+		PerformAction(cow, cmd[1])
+	case "bird":
+		PerformAction(bird, cmd[1])
+	case "snake":
+		PerformAction(snake, cmd[1])
+	default:
+		fmt.Println("Invalid animal. Options {cow, bird, snake}")
+	}
+}
+
+func PerformAction(v Animal, action string) {
+	switch action {
+	case "eat":
+		v.Eat()
+	case "move":
+		v.Move()
+	case "speak":
+		v.Speak()
+	default:
+		fmt.Println("Invalid action. Options: {eat, move, speak}")
+	}
+}
+
+func main() {
+	fmt.Println("Welcome to Animal Farm! We have a \"cow\", \"bird\", and \"snake\".")
+	fmt.Println("You can ask eat animal to \"eat\", \"move\", or \"speak\".")
+	fmt.Println("Example: >cow move")
+
+	inputReader := bufio.NewReader(os.Stdin)
+
+	for {
+		fmt.Printf(">")
+		userInput, _ := inputReader.ReadString('\n')
+		splitInputs := ParseUserInput(userInput)
+
+		if len(splitInputs) > 2 {
+			fmt.Println("Error user input contains more values than the expected \"<animal> <action>\"")
+			continue
+		}
+
+		if len(splitInputs) < 2 {
+			fmt.Println("Error user input contains less values than the expected \"<animal> <action>\"")
+			continue
+		}
+		ProcessCommand(splitInputs)
+	}
+}

coursera/second_course/week3/assignment/module3activity.go

@@ -0,0 +1,95 @@
+// NOT DREW's BUT HAS GOOD INPUT COMMAND PROCESSING
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+)
+
+type Animal struct {
+	food       string
+	locomotion string
+	noise      string
+}
+
+func (a *Animal) Eat() string {
+	return a.food
+}
+
+func (a *Animal) Move() string {
+	return a.locomotion
+}
+
+func (a *Animal) Speak() string {
+	return a.noise
+}
+
+func main() {
+
+	cow := Animal{"grass", "walk", "moo"}
+	bird := Animal{"worms", "fly", "peep"}
+	snake := Animal{"mice", "slither", "hsss"}
+
+	var input string
+	var animal string
+	var information string
+
+	for {
+
+		fmt.Println("Hello. Enter in a line with a space separation an animal (cow, bird, or snake) and the information requested (eat, move or speak): ")
+
+		scanner := bufio.NewScanner(os.Stdin)
+		scanner.Scan()
+		input = scanner.Text()
+
+		input = strings.TrimSpace(input)
+		numberStrings := strings.Fields(input)
+
+		for _, item := range numberStrings {
+			if item == "cow" || item == "bird" || item == "snake" {
+				animal = item
+			}
+
+			if item == "eat" || item == "move" || item == "speak" {
+				information = item
+			}
+		}
+
+		var selectedAnimal *Animal
+
+		switch animal {
+		case "cow":
+			selectedAnimal = &cow
+		case "bird":
+			selectedAnimal = &bird
+		case "snake":
+			selectedAnimal = &snake
+		default:
+			fmt.Println("Invalid animal. Please, enter 'cow', 'bird' or 'snake'")
+			animal = ""
+			information = ""
+			continue
+		}
+
+		switch information {
+		case "eat":
+			fmt.Println("The action for the selected animal is: ", selectedAnimal.Eat())
+		case "move":
+			fmt.Println("The action for the selected animal is: ", selectedAnimal.Move())
+		case "speak":
+			fmt.Println("The action for the selected animal is: ", selectedAnimal.Speak())
+		default:
+			fmt.Println("Invalid action. Please, enter 'eat', 'move' or 'speak'")
+			animal = ""
+			information = ""
+			continue
+		}
+
+		animal = ""
+		information = ""
+
+	}
+
+}