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added scrolling to the InfoText class

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Nick Dyer 2021-06-04 23:26:56 -04:00
parent a401c58d22
commit a4aa20e306
1 changed files with 15 additions and 0 deletions
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15
pocket_friends/game_files/game.py
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@ -200,6 +200,21 @@ class InfoText:
text = self.font.render(self.text[i + self.offset], False, (64, 64, 64)) text = self.font.render(self.text[i + self.offset], False, (64, 64, 64))
surface.blit(text, (3, 22 + (i * 7))) surface.blit(text, (3, 22 + (i * 7)))
def scroll_down(self):
"""
Scrolls the text on the screen down.
"""
# Ensures that the offset cannot be too big as to try to render non-existent lines.
if len(self.text) - (self.offset + 1) >= self.max_lines:
self.offset += 1
def scroll_up(self):
"""
Scrolls the text on the screen up.
"""
if self.offset > 0: # Ensures a non-zero offset is not possible.
self.offset -= 1
# Makes Pygame draw on the display of the RPi. # Makes Pygame draw on the display of the RPi.
os.environ["SDL_FBDEV"] = "/dev/fb1" os.environ["SDL_FBDEV"] = "/dev/fb1"