from manim import *


class GraphAreaPlot(Scene):
    def construct(self):
        ax = Axes(
            x_range=[0, 5],
            y_range=[0, 6],
            x_axis_config={"numbers_to_include": [2, 3]},
            tips=False,
        )

        labels = ax.get_axis_labels()

        curve_1 = ax.plot(
            lambda x: 4 *
            x -
            x ** 2,
            x_range=[
                0,
                4],
            color=BLUE_C)
        curve_2 = ax.plot(
            lambda x: 0.8 * x ** 2 - 3 * x + 4,
            x_range=[0, 4],
            color=GREEN_B,
        )

        line_1 = ax.get_vertical_line(
            ax.input_to_graph_point(
                2, curve_1), color=YELLOW)
        line_2 = ax.get_vertical_line(ax.i2gp(3, curve_1), color=YELLOW)

        riemann_area = ax.get_riemann_rectangles(
            curve_1,
            x_range=[
                0.3,
                0.6],
            dx=0.03,
            color=BLUE,
            fill_opacity=0.5)
        area = ax.get_area(
            curve_2, [
                2, 3], bounded_graph=curve_1, color=GREY, opacity=0.5)

        self.add(
            ax,
            labels,
            curve_1,
            curve_2,
            line_1,
            line_2,
            riemann_area,
            area)