DEMO #1: Let's practice using the xy-coordinate plane by clicking on 4 locations.
xy- coordinate plane can be described by two numbers written like this: (100, 50).
The first number is the x-coordinate which tells us how far to move right or left. (Right is +)
The second number is the y-coordinate which tells us how far to move up or down. (Up is +)
Click Run and follow the instructions on the stage and move the hedgehog around the field.
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color = "lightyellow"
stage.set_background("flowers")
stage.create_grid_overlay(50, color)
sprite = codesters.Sprite("hedgehog")
sprite.set_size(.5)
def main_event():
global rand_x
global rand_y
global guide
global asker
sprite.go_to(0,0)
guide = codesters.Text(" ", 0, 50, color)
rand_x = random.randrange(-200, 200, 50)
rand_y = random.randrange(-200, 200, 50)
point = (rand_x, rand_y)
asker = codesters.Text("Click on " + str(point), 0, 50, "black")
main_event()
score = 0
def pause():
stage.wait(.00001)
def click():
global score
asker.set_text(' ')
x = stage.click_x()
y = stage.click_y()
sprite.go_to(x, y)
stage.event_click(pause)
if (abs(x - rand_x) <=5 and abs(y - rand_y <= 5)):
choice = 1
elif (abs(y - rand_x) <=5 and abs(x - rand_y <= 5)):
choice = 2
else:
choice = False
stage.wait(1)
guide.go_to(rand_x, rand_y + 40)
if choice == 2:
guide.set_text("Oops! Looks like you mixed up x and y. Try again!")
guide.set_color("yellow")
elif choice == 1:
guide.set_text("Great job!")
guide.set_color("black")
score += 1
else:
guide.set_text("Here it is!")
sprite.go_to(rand_x, rand_y)
stage.wait(1)
guide.set_text("Try again!")
guide.set_color('red')
stage.wait(1)
guide.set_text(' ')
if score < 4:
main_event()
if score >= 4:
guide.go_to(0, 200)
guide.set_color("green")
guide.set_text("You've mastered the coordinate plane! Good work!")
tm = TestManager()
tm.display_success_message("Great job!")
stage.event_click(click)
stage.event_click(click)
tm = TestManager()
if score >= 4:
tm.display_success_message("Great job!")
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