from codesters import Text tester = TestManager() stage.wait(1) stage.set_axis(250) paused = False def hover(): x = stage.mouse_x() y = stage.mouse_y() if (x < -135 and x > -250) and (y < -190 and y > -250): click_box.set_opacity(.7) click_text.set_opacity(.7) else: click_box.set_opacity(1) click_text.set_opacity(1) def pause(): global paused while not paused: stage.wait(0.1) paused = False def pause_click(sprite): global paused paused = True def hide_click(): click_box.hide() click_text.hide() def show_click(): click_box.show() click_text.show() def delete_click(sprite): pass def delete_mouse_move(): pass def delete_interval(): pass def delete_collision(sprite, hit_sprite): pass def unpause(): global paused paused = True def pause_box(): global paused show_click() while not paused: stage.wait(0.1) paused = False hide_click() # ######## DEMO STARTS ############# try: stage.remove_sprite(athlete) stage.remove_sprite(athlete2) except: tester.display_failure_message("Oops! Make sure you don't do anything to do the code in your editor!") pause() guide = codesters.Sprite("person2") guide.say("Let's learn about how this code works!") stage.wait(2) click_box = codesters.Rectangle(-200, -220, 125, 60, "green", "black") click_text = codesters.Text("Continue", -200, -220, "white") click_box.event_click(pause_click) stage.event_mouse_move(hover) pause_box() guide.say("Dot notation is when we assign actions to sprites with different variable names.") stage.wait(2) pause_box() guide.say("And a variable name is the name of our sprite.") stage.wait(2) pause_box() guide.say("Let's practice!") stage.wait(1) pause_box() guide.move_down(200) guide.say("Click on the variable name to change it.") athlete = codesters.Sprite("player1", 0, -500) athlete.set_size(0.5) athlete.set_position(0, 0) variable_text = Text("sprite", -200, 200, "orange") equals_text = Text("=", -160, 200,) codester_text = Text("codesters.Sprite(", -70, 200) image_label_text = Text('"player1"', 50, 200, "green") ending_paren_text = Text(")", 95, 200) def image_label_click(sprite): guide.say("Oops, that's the image label, not the variable!") image_label_text.event_click(image_label_click) variable_text.event_click(pause_click) pause() variable_text.event_click(delete_click) image_label_text.event_click(delete_click) variable_text.set_text("athlete") guide.say("Nice!") stage.wait(1) guide.say("Now, let's use dot notation to move our sprite to the right.") pause_box() guide.say("First, drag the sprite's variable name to the yellow box.") yellow_box = codesters.Rectangle(-200, 150, 75, 40, "yellow") yellow_box.set_opacity(0.5) def variable_click(sprite): new_variable = variable_text.clone() new_variable.set_text("athlete") new_variable.set_color("orange") variable_text.event_click(delete_click) variable_text.event_click(variable_click) variable_text.set_drag_on() def interval(): x = variable_text.get_x() y = variable_text.get_y() if (x < (-200 + yellow_box.get_width()/2) and x > (-200 - yellow_box.get_width()/2)) and ((y > 150 - yellow_box.get_height()/2) and y < (150 + yellow_box.get_height()/2)): stage.event_interval(delete_interval, 0.1) variable_text.set_drag_off() variable_text.go_to(-200, 150) yellow_box.hide() guide.say("Nice!") unpause() stage.event_interval(interval, 0.1) pause() guide.say("Nice!") stage.wait(1) pause_box() guide.say("Let's now make our player sprite move right!") stage.wait(2) pause_box() guide.say("Drag the .move_right() to the highlighted area to move the player sprite!") move_right_text = Text(".move_right( )", -150, -150) integer_text = Text("200", move_right_text.get_x() + 53, move_right_text.get_y(), "dodgerblue") move_right_text.set_drag_on() yellow_box.set_position(-90, 150) yellow_box.set_width(150) yellow_box.show() def interval(): x = move_right_text.get_x() y = move_right_text.get_y() integer_text.set_position(x + 53, y) if (x < (yellow_box.get_x() + yellow_box.get_width()/2) and x > (yellow_box.get_x() - yellow_box.get_width()/2)) and ((y > yellow_box.get_y() - yellow_box.get_height()/2) and y < (yellow_box.get_y() + yellow_box.get_height()/2)): stage.event_interval(delete_interval, 0.1) move_right_text.set_drag_off() move_right_text.go_to(-90, 150) integer_text.set_position(move_right_text.get_x() + 53, move_right_text.get_y()) yellow_box.hide() unpause() stage.event_interval(interval, 0.01) pause() guide.say("Nice!") athlete.move_right(200) stage.wait(1) guide.say("See how the sprite moved to the right 200 pixels when you put the .move_right() command at the end of its name?") pause_box() guide.say("Let's practice one more time!") stage.wait(1) pause_box() athlete2 = codesters.Sprite("player2", 0, -500) athlete2.set_size(0.5) athlete2.set_position(25, 0) variable_text = Text("athlete2", -200, 100, "orange") equals_text = Text("=", -155, 100,) codester_text = Text("codesters.Sprite(", -65, 100) image_label_text = Text('"player2"', 55, 100, "green") ending_paren_text = Text(")", 100, 100) stage.wait(1) variable_text = Text("athlete2", -200, 100, "orange") variable_text.move_down(50) guide.say("Drag the .move_right() to the highlighted area to move our second player sprite!") move_right_text = Text(".move_right( )", -150, -150) integer_text = Text("100", move_right_text.get_x() + 53, move_right_text.get_y(), "dodgerblue") move_right_text.set_drag_on() yellow_box.set_position(-80, 50) yellow_box.set_width(150) yellow_box.show() def interval(): x = move_right_text.get_x() y = move_right_text.get_y() integer_text.set_position(x + 53, y) if (x < (yellow_box.get_x() + yellow_box.get_width()/2) and x > (yellow_box.get_x() - yellow_box.get_width()/2)) and ((y > yellow_box.get_y() - yellow_box.get_height()/2) and y < (yellow_box.get_y() + yellow_box.get_height()/2)): stage.event_interval(delete_interval, 0.1) move_right_text.set_drag_off() move_right_text.go_to(-85, 50) integer_text.set_position(move_right_text.get_x() + 53, move_right_text.get_y()) yellow_box.hide() unpause() stage.event_interval(interval, 0.01) pause() athlete2.move_right(100) guide.say("Nice!") stage.wait(1) guide.say("See how the second sprite (not the first) moved to the right 100 pixels when you put the .move_right() command at the end of its name?") stage.wait(3) pause_box() guide.say("Nice job!") tester.display_success_message("Great job! Click Submit and Next to move on!")