Merge branch 'master' into python-scipy-cluster-optimize

Author: somacdivad

arcade-a-primer/README.md

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+Source files supporting the **Arcade - A Modern Python Game Framework** article

arcade-a-primer/arcade_basic.py

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+# Basic arcade program
+# Displays a white window with a blue circle in the middle
+
+# Imports
+import arcade
+
+# Constants
+SCREEN_WIDTH = 600
+SCREEN_HEIGHT = 800
+SCREEN_TITLE = "Welcome to Arcade"
+RADIUS = 150
+
+# Open the window
+arcade.open_window(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
+
+# Set the background color
+arcade.set_background_color(arcade.color.WHITE)
+
+# Clear the screen and start drawing
+arcade.start_render()
+
+# Draw a blue circle
+arcade.draw_circle_filled(
+    SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2, RADIUS, arcade.color.BLUE
+)
+
+# Finish drawing
+arcade.finish_render()
+
+# Display everything
+arcade.run()

arcade-a-primer/arcade_basic_oop.py

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+# Basic arcade program using objects
+# Displays a white window with a blue circle in the middle
+
+# Imports
+import arcade
+
+# Constants
+SCREEN_WIDTH = 600
+SCREEN_HEIGHT = 800
+SCREEN_TITLE = "Welcome to Arcade"
+RADIUS = 150
+
+# Classes
+
+
+class Welcome(arcade.Window):
+    """Our main welcome window
+    """
+
+    def __init__(self):
+        """Initialize the window
+        """
+
+        # Call the parent class constructor
+        super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
+
+        # Set the background window
+        arcade.set_background_color(arcade.color.WHITE)
+
+    def on_draw(self):
+        """Called whenever we need to draw our window
+        """
+
+        # Clear the screen and start drawing
+        arcade.start_render()
+
+        # Draw a blue circle
+        arcade.draw_circle_filled(
+            SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2, RADIUS, arcade.color.BLUE
+        )
+
+
+# Main code entry point
+if __name__ == "__main__":
+    app = Welcome()
+    arcade.run()

arcade-a-primer/arcade_draw_shapes.py

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+# Basic arcade program using objects
+# Draw shapes on screen
+
+# Imports
+import arcade
+
+# Constants
+SCREEN_WIDTH = 600
+SCREEN_HEIGHT = 650
+SCREEN_TITLE = "Draw Shapes"
+
+# Classes
+
+
+class Welcome(arcade.Window):
+    """Our main welcome window
+    """
+
+    def __init__(self):
+        """Initialize the window
+        """
+
+        # Call the parent class constructor
+        super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
+
+        # Set the background window
+        arcade.set_background_color(arcade.color.WHITE)
+
+    def on_draw(self):
+        """Called whenever we need to draw our window
+        """
+
+        # Clear the screen and start drawing
+        arcade.start_render()
+
+        # Draw a blue arc
+        arcade.draw_arc_filled(100, 100, 40, 40, arcade.color.BLUE, 0, 125)
+
+        # Draw a red ellipse
+        arcade.draw_ellipse_outline(
+            300, 100, 60, 30, arcade.color.RED, border_width=2
+        )
+
+        # Draw some purple lines
+        arcade.draw_line(500, 100, 550, 100, arcade.color.PURPLE)
+        arcade.draw_line(500, 90, 550, 90, arcade.color.PURPLE, line_width=2)
+        arcade.draw_line(500, 80, 550, 80, arcade.color.PURPLE, line_width=3)
+
+        # Draw an orange parabola
+        arcade.draw_parabola_filled(100, 100, 130, 120, arcade.color.ORANGE)
+
+        # Draw a black point
+        arcade.draw_point(300, 300, arcade.color.BLACK, 20)
+
+        # Draw a green polygon
+        points_list = [
+            [500, 300],
+            [550, 300],
+            [575, 325],
+            [550, 350],
+            [525, 340],
+        ]
+        arcade.draw_polygon_outline(
+            points_list, arcade.color.GREEN, line_width=5
+        )
+
+        # Draw some rectangles
+        arcade.draw_rectangle_filled(100, 500, 150, 75, arcade.color.AZURE)
+        arcade.draw_lrtb_rectangle_filled(
+            150, 250, 575, 525, arcade.color.AMARANTH_PINK
+        )
+        arcade.draw_xywh_rectangle_filled(
+            200, 550, 150, 75, arcade.color.ASPARAGUS
+        )
+
+        # Draw some triangles
+        arcade.draw_triangle_filled(
+            400, 500, 500, 500, 450, 575, arcade.color.DEEP_RUBY
+        )
+
+
+# Main code entry point
+if __name__ == "__main__":
+    app = Welcome()
+    arcade.run()