Untitled Solo Card Game

This is a simple blend of solitaire, sudoku, and blackjack.

Goal- Get the cards in each row and column to add up to 15, or as close as possible without going over.

Rules 

• Once a card is "placed" the card cannot be moved.
• Cards have a mathematical operator on each side (top,botom,left,right) these operators interact with their neighbors such that if the two signs are the same the values will be added together, if they are different they will be subtracted from one another.
• If the final score for a row or column is a negative number it will not affect the score.
• Currently the operators are "+", "-", 
• Calculations are done from left to right for rows, and from top to bottom for columns

Controls

• Drag cards to the space in the grid you want them to occupy
• the <- and -> buttons allow you to rotate the operators on the above card left and right .

Future Plans

• Looking to use this as the game underlying a rouge-like deck-builder thus other rouge-like elements will be added
  • single use items
  • card effects
  • other multipliers
• Card Combinations- my plan is to create a system for combining placed cards combining their values, and operators
• Blocking out Card Slots- to accommodate changing deck sizes I plan to restrict the number of available slots
• A score based progression system- basically beat a given score in order to move on-still working on exactly what this looks like (balatro's value and multiplier system comes to mind) but that's tbd.

QOL Improvements

• Build 0.0.1
  • Scoring will not update until a row or column is full, previews were non-deterministic and confusing.
  • Operators removed from cards once they're placed to reduce visual noise.
  • Neutral Operators removed because they're effectively the same as plus operators.
• Build 0.0.2
  • Added functionality for rotating the operators on 'cards' might be too strong
• Build 0.0.3
  • Added card combining- in each slot you may combine up to two cards
  • Card combining meant that it wouldn't be uncommon for a row or column to be incomplete, the scoring method needed to be updated to solve for this issue.
  • Right now card combinations are in the game to lay the groundwork for future additions, but they do create an interesting mechanic.