[LilyTheCuteCatgirl]

Chrome's dinosaur game for the NumWorks calculator: inside NumPlay, after Tetris, and on its own as ChromeDino.nwa. First brought to NumPlay by @LilyTheCuteCatgirl, from her version for the calculator's Python.

The game

• Chrome's own game, ported from Chromium's dino_game (BSD license, see games/dinorun/LICENSE), as Chrome plays it on a screen 320 pixels wide, at Chrome's 60 frames a second:
  • It starts at speed 3.84 and goes 0.001 faster each frame, up to 13.
  • The jump goes higher the longer the key is held. Ducking works on the ground, and in the air Down drops you faster.
  • Small and large cacti come alone or in groups once you're fast enough.
  • Pterodactyls come from speed 8.5, at three heights: jump the low ones, duck the middle ones, and the high ones fly over.
  • It uses Chrome's collision boxes, flashes the score at every 100, and has a night every 700 points with the moon's phases and the stars.
  • Game over shows Chrome's GAME OVER and restart button.
• Chrome's pictures, from its sprite sheet: tools/sprites.py packs them into 5.5 KB.
• Keys: OK or Up jumps (hold for higher) and Down ducks. Back opens a pause menu (Resume, Restart, Quit game, which asks first). EXE plays again at once after a crash, and Home quits. The keys are written under the game, and the best score is saved.

Changes from the first version

• The game follows Chromium's code: Chrome's speeds, jump, obstacles, collision boxes, night and score.
• Ducking now gets you under the pterodactyls flying at head height. Before, ducking never helped against birds, and some of them flew through the dinosaur's head without a hit.
• The other games' launcher screenshots stay in full colour. The first version cut five of them to 4 colours to make room, which NumPlay doesn't need anymore.
• The key hints are readable, Back pauses instead of ending the run, and the icon has the other apps' rounded corners.

In NumPlay

• It has a launcher card. The README gets its grid, credits and game count (19 games), and there's a how-to-play section, a thumbnail and a gallery GIF. The launcher GIF is recorded again.
• It comes in French and Chinese, and in NumPlay-Upsilon.nwa (15 games).
• NumPlay.nwa installs with about 25 KB to spare, and ChromeDino.nwa is about 21 KB.

Tested

• make nwa apps check and make lang: every app and language build fits the calculator's flash and RAM.
• tests/test_games.py, standalone and in NumPlay (Home and On/Off quit, RAM cleared, the save written and updated). Also test_upsilon.py, test_small_ram.py, test_uninstall.py and test_progress.py.
• make -C games/dinorun host-test checks Chrome's numbers (the jump, the speed, the obstacles' rules, the collision boxes, night, the score's flashes), the keys and pause menu, and that sending only changed tiles leaves the screen identical to a full redraw. It then plays long games under the address and undefined-behaviour sanitizers.