sprites

sprites

AsteroidImpact game sprites including sprite-specific behaviors.

class sprites.Asteroid(diameter=200, dx=4, dy=10, left=20, top=20, area=None)

Bases: sprites.VirtualGameSprite

Asteroids move in straight lines, bouncing off the edges of the game play area

copy_from(asteroid)

update(millis)

Update the position and direction of the Asteroid to move, and bounce

class sprites.BasePowerup(diameter=16, left=50, top=50, maxduration=5.0)

Bases: sprites.VirtualGameSprite

Base class for power-ups so they share common expiration behavior

activate(cursor, asteroids, frame_outbound_triggers, *args)

Activate power-up because it was picked up

deactivate(cursor, asteroids, frame_outbound_triggers)

Deactivate power-up

update(millis, frame_outbound_triggers, cursor, asteroids)

Deactivate power-up if duration has expired

class sprites.Cursor(game_bounds=<rect(0, 0, 1280, 896)>)

Bases: sprites.VirtualGameSprite

The Player’s ship is moved around using the mouse cursor

update(millis)

Move the cursor based on the mouse position

class sprites.NonePowerup(duration=10.0)

Bases: sprites.BasePowerup

This power-up has no effect except delaying the next power-up from spawning

class sprites.ReactionTimePrompt(diameter=64, position_list=[[20, 20]], sound='tone440.wav', image='triangle.png', input_key='K_1', showtimes_millis=[], showtimes_trigger_counts=[], timeout_millis=5000, stay_visible=False, **kwargs_extra)

Bases: sprites.VirtualGameSprite

Game element to test reaction time

activate_and_show()

deactivate_and_hide()

logme(logrowdetails, reactionlogger)

step_end_deactivate(logrowdetails, reactionlogger)

update(millis, logrowdetails, reactionlogger, frame_outbound_triggers, events, step_trigger_count)

class sprites.ScoredTarget(diameter=32, left=20, top=20, imagefile='crystal.png', number='x', lifetime_millis_max=None)

Bases: sprites.VirtualGameSprite

Targets (Crystals) don’t move, but do play a sound when collected

activate(life_multiplier=1)

deactivate()

pickedup()

Play pick up sound

stop_audio()

update(millis)

class sprites.ShieldPowerup(diameter=32, left=80, top=80)

Bases: sprites.BasePowerup

While active, the ShieldPowerup prevents the player from dying due to collisions with asteroids.

activate(cursor, asteroids, frame_outbound_triggers, *args)

Play activation sound

stop_audio()

update(millis, frame_outbound_triggers, cursor, asteroids)

Follow cursor. Play effect end sound if due

class sprites.SlowPowerup(diameter=32, left=100, top=100)

Bases: sprites.BasePowerup

While active, the SlowPowerup slows the asteroids to a crawl

activate(cursor, asteroids, frame_outbound_triggers, *args)

Play start sound. Slow asteroids to a crawl

deactivate(cursor, asteroids, frame_outbound_triggers, *args)

Restore normal speed of asteroids

stop_audio()

update(millis, frame_outbound_triggers, cursor, asteroids)

Play effect end sound if due

class sprites.Target(diameter=32, left=20, top=20)

Bases: sprites.VirtualGameSprite

Targets (Crystals) don’t move, but do play a sound when collected

pickedup()

Play pick up sound

stop_audio()

update(millis)

class sprites.TextSprite(font, text, color, **kwargs)

Bases: object

Sprite-like object for text that helps positioning text in game coordinates, and keeping text in position when text changes.

draw(screen)

Draw text on screen

set_position(**kwargs)

set_text(text)

Set and render new text

class sprites.VirtualGameSprite

Bases: pygame.sprite.DirtySprite

Sprite with higher resolution game position/size (gamerect) than on-screen position/size (rect)

stop_audio()

update_rect()

sprites.clamp_range(value, limit_low, limit_high)

return limit_low if value < limit_low, limit_high if value > limit_high, otherwise value

sprites.map_range(value, from_low, from_high, to_low, to_high)

return value in range [from_low, from_high] mapped to range [to_low, to_high]