House Of Cards

Survive the chaos in this card themed casual bullet hell roguelike twin stick shooter for mobile, desktop, and the web!

Controls

• Movement: WASD or hold right mouse button
• Aim: arrow keys or mouse
• Shoot: left click or space
• Switch between active cards: 1, 2, or 3
• Reset after death: R
• Pause: escape or p
• Choose powerup/card: 8, 9, 0 or click on powerup/card
• Swap: Enter (or click button)
• Discard all: backspace/delete or click button
• Toggle auto shoot: Q (off by default)
• Toggle music: M (on by default)

Mobile Controls

• Note: might need auto rotate on (game works best in landscape mode)
• Movement: left screen joystick
• Aim: right screen joystick
• Switch between active cards: touch card
• Pause: touch top left corner of screen (touch anywhere to unpause)
• Choose powerup/card: touch powerup/card
• Swap: touch swap button
• Discard all: touch discard all button
• Reset after death: touch screen anywhere
• Toggle music: button in pause menu

Extra mechanics

• Damage
  • Joker => 50% chance to one shot (8 sec)
  • Ace => one shot (20 sec)
  • Face => 2 * the "number" value of the card (0.5 sec)
  • Else => number value of card (0.2 sec)
• Score and XP
  • 1 per enemy killed
• There is a movement speed penalty while shooting

Powerups

Powerups can stack and are calculated independently (even for 2 of the same time of powerup). You get a choice of a new card every level up and a card buff every time you kill a super enemy.

Card Buffs

• Blue 1: Diamonds pierce one additional enemy
• Blue 2: Hearts have 2% chance to heal 1 hp (won't increase max hp)
• Blue 3: Clubs stun for 0.1 seconds
• Blue 4: Spades have 33% chance to double damage

Credits

• Pixel Art Cards: https://www.reddit.com/r/PixelArt/comments/i1t1gn/pixel_art_playing_card_designs_created_in_aseprite/
• Pixel Art Chess Pieces: https://spheya.artstation.com/projects/QnaVO3
• Math for rotated rectangle hitbox: https://chat.openai.com/share/f0826594-c5e9-4ea6-a1cf-0a010295fbfa
• Font: https://fonts.google.com/specimen/Assistant
• Music: https://www.youtube.com/watch?v=ROcups0YaHE

TODO

• Feedback
  • Automaticly cycle through the cards in hand instead of giving the player control over it.
  • Swap piece colors (less racist...)
  • Short dash ability?
  • Make hand combos matter? (Like Black Jack, Poker, etc)
  • Enemy variance (comes in swarms, moves slower/harder hits)
  • More generally fun mechanics
  • Alternate ways of healing?
  • Some mechanic to add together cards of the same suit?
  • Joker should be the strongest card
• Balancing
  • 3 card hand vs 2 card hand
  • Suit buffs (clubs/hearts op)
  • Super enemies fire rate gets too high
  • Enemies start too slow then get too fast?
• Tweak
  • XP and score system
  • Scaling system and numbers
  • Super enemy numbers and mechanics
• Improve aim feel (mouse, arrow keys, joystick)
  • Issue: mouse is relative to player position (really camera posistion) not world position
    • Like locked camera in League
• Loading time/screen on web
  • Either calculate the loading time for the sound file or ?
• Purpose?
  • Trying to get somewhere?
  • Trying to protect/rescue something?
  • Spawn extra score pickups around the area
  • Should make you move around dynamically
    • Instead of a straight line