Drawing with Text Objects#
This example shows how to draw text using “text objects.” It is the fastest way to draw text. If you are looking for something simpler, see Drawing Text.
drawing_text_objects.py#
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Example showing how to draw text to the screen using Text objects.
This is much faster than using draw_text
If Python and Arcade are installed, this example can be run from the command line with:
python -m arcade.examples.drawing_text_objects
"""
import arcade
SCREEN_WIDTH = 1200
SCREEN_HEIGHT = 800
SCREEN_TITLE = "Drawing Text Example"
DEFAULT_LINE_HEIGHT = 45
DEFAULT_FONT_SIZE = 20
class MyGame(arcade.Window):
"""
Main application class.
"""
def __init__(self, width, height, title):
super().__init__(width, height, title)
self.background_color = arcade.color.BEIGE
self.text_angle = 0
self.time_elapsed = 0.0
# Add the screen title
start_x = 0
start_y = SCREEN_HEIGHT - DEFAULT_LINE_HEIGHT * 1.5
self.title = arcade.Text(
"Text Drawing Examples",
start_x,
start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE * 2,
width=SCREEN_WIDTH,
align="center",
)
# start_x and start_y make the start point for the text. We draw a dot to make it
# easy too see the text in relation to its start x and y.
start_x = 10
start_y = SCREEN_HEIGHT - DEFAULT_LINE_HEIGHT * 3
self.fonts = arcade.Text(
"Fonts:",
start_x,
start_y,
arcade.color.FRENCH_WINE,
DEFAULT_FONT_SIZE, bold=True,
)
# Move the y value down to create another line of text
start_y -= DEFAULT_LINE_HEIGHT
self.font_default = arcade.Text(
"Default Font (Arial)",
start_x,
start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE
)
# Show some built-in fonts
start_y -= DEFAULT_LINE_HEIGHT
self.font_kenney_blocks = arcade.Text(
"Kenney Blocks Font",
start_x,
start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
font_name="Kenney Blocks",
)
start_y -= DEFAULT_LINE_HEIGHT
self.font_kenney_future = arcade.Text(
"Kenney Future Font",
start_x,
start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
font_name="Kenney Future",
)
start_y -= DEFAULT_LINE_HEIGHT
self.font_kenney_high = arcade.Text(
"Kenney High Font",
start_x,
start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
font_name="Kenney High"
)
start_y -= DEFAULT_LINE_HEIGHT
self.font_kenney_high_square = arcade.Text(
"Kenney High Square Font",
start_x,
start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
font_name="Kenney High Square",
)
start_y -= DEFAULT_LINE_HEIGHT
self.font_kenney_mini_square = arcade.Text(
"Kenney Mini Square Font",
start_x, start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
font_name="Kenney Mini Square",
)
start_y -= DEFAULT_LINE_HEIGHT
self.font_kenney_pixel = arcade.Text(
"Kenney Pixel Font",
start_x, start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
font_name="Kenney Pixel",
)
start_y -= DEFAULT_LINE_HEIGHT
self.font_kenney_pixel_square = arcade.Text(
"Kenney Pixel Square Font",
start_x, start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
font_name="Kenney Pixel Square",
)
start_y -= DEFAULT_LINE_HEIGHT
self.font_kenney_rocket = arcade.Text(
"Kenney Rocket Font",
start_x, start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
font_name="Kenney Rocket",
)
start_y -= DEFAULT_LINE_HEIGHT
self.font_kenney_rocket_square = arcade.Text(
"Kenney Rocket Square Font",
start_x, start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
font_name="Kenney Rocket Square",
)
start_y -= DEFAULT_LINE_HEIGHT
# When trying to use system fonts, it can be risky to specify
# only a single font because someone else's computer might not
# have it installed. This is especially true if they run a
# different operating system. For example, if you are on Windows
# and a friend has a mac or Linux, they might not have the same
# fonts. Your game could look different or broken on their computer.
# One way around that is to provide multiple options for draw_text
# to try. It will use the first one it finds, and use Arial as a
# default if it can't find any of them.
# In the example below, draw_text is given a tuple of names for very
# similar fonts, each of which is common on a different major
# operating systems.
self.font_times_new_roman = arcade.Text(
"Times New Roman (Or closest match on system)",
start_x, start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
font_name=(
"Times New Roman", # Comes with Windows
"Times", # MacOS may sometimes have this variant
"Liberation Serif" # Common on Linux systems
)
)
start_y -= DEFAULT_LINE_HEIGHT
self.multi_line_breaks = arcade.Text(
"Multi-Line\ntext using\n\\n characters.",
start_x, start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE / 2,
multiline=True,
width=300,
)
start_y -= DEFAULT_LINE_HEIGHT * 1.5
self.multiline_wrap = arcade.Text(
"Wrapping really long text automatically to a new line. "
"The quick brown fox jumped over the lazy dogs.",
start_x,
start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE / 2,
multiline=True,
width=300
)
# --- Column 2 ---
start_x = 750
start_y = SCREEN_HEIGHT - DEFAULT_LINE_HEIGHT * 3
self.text_positioning = arcade.Text(
"Text Positioning:",
start_x,
start_y,
arcade.color.FRENCH_WINE,
DEFAULT_FONT_SIZE,
bold=True,
)
# start_x and start_y make the start point for the text.
# We draw a dot to make it easy too see the text in relation to
# its start x and y.
start_y -= DEFAULT_LINE_HEIGHT
self.default_baseline_left = arcade.Text(
"Default of 'baseline' and 'Left'",
start_x,
start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
)
start_y -= DEFAULT_LINE_HEIGHT
self.bottom_left = arcade.Text(
"'bottom' and 'left'",
start_x,
start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
anchor_x="left",
anchor_y="bottom",
)
start_y -= DEFAULT_LINE_HEIGHT
self.top_left = arcade.Text(
"'top' and 'left'",
start_x, start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
anchor_x="left",
anchor_y="top",
)
start_y -= DEFAULT_LINE_HEIGHT * 2
self.basline_center = arcade.Text(
"'baseline' and 'center'",
start_x, start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
anchor_x="center",
anchor_y="baseline",
)
start_y -= DEFAULT_LINE_HEIGHT
self.baseline_right = arcade.Text(
"'baseline' and 'right'",
start_x,
start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
anchor_x="right",
anchor_y="baseline",
)
start_y -= DEFAULT_LINE_HEIGHT
self.center_center = arcade.Text(
"'center' and 'center'",
start_x,
start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
anchor_x="center",
anchor_y="center",
)
start_y -= DEFAULT_LINE_HEIGHT * 4
# start_x = 0
# start_y = 0
self.rotating_text = arcade.Text(
"Rotating Text",
start_x, start_y,
arcade.color.BLACK,
DEFAULT_FONT_SIZE,
anchor_x="center",
anchor_y="center",
rotation=self.text_angle
)
def on_update(self, delta_time):
self.text_angle += 1
self.time_elapsed += delta_time
def on_draw(self):
"""
Render the screen.
"""
# This command should happen before we start drawing. It will clear
# the screen to the background color, and erase what we drew last frame.
self.clear()
# Draw all the text objects
# Column 1
self.title.draw()
self.fonts.draw()
self.font_default.draw()
self.font_kenney_blocks.draw()
self.font_kenney_future.draw()
self.font_kenney_high.draw()
self.font_kenney_high_square.draw()
self.font_kenney_mini_square.draw()
self.font_kenney_pixel.draw()
self.font_kenney_pixel_square.draw()
self.font_kenney_rocket.draw()
self.font_kenney_rocket_square.draw()
self.font_times_new_roman.draw()
self.multi_line_breaks.draw()
self.multiline_wrap.draw()
# Column 2
self.text_positioning.draw()
arcade.draw_point(
self.default_baseline_left.x,
self.default_baseline_left.y,
arcade.color.BARN_RED,
5,
)
self.default_baseline_left.draw()
arcade.draw_point(
self.bottom_left.x,
self.bottom_left.y,
arcade.color.BARN_RED,
5,
)
self.bottom_left.draw()
arcade.draw_point(
self.top_left.x,
self.top_left.y,
arcade.color.BARN_RED,
5,
)
self.top_left.draw()
arcade.draw_point(
self.basline_center.x,
self.basline_center.y,
arcade.color.BARN_RED,
5
)
self.basline_center.draw()
arcade.draw_point(
self.baseline_right.x,
self.baseline_right.y,
arcade.color.BARN_RED,
5,
)
self.baseline_right.draw()
arcade.draw_point(
self.center_center.x,
self.center_center.y,
arcade.color.BARN_RED,
5,
)
self.center_center.draw()
arcade.draw_point(
self.rotating_text.x,
self.rotating_text.y,
arcade.color.BARN_RED,
5,
)
self.rotating_text.rotation = self.text_angle
self.rotating_text.draw()
def main():
MyGame(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
arcade.run()
if __name__ == "__main__":
main()
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