A couch Co-Op 2D top-down stealth rogue-like game.

• C++
• SFML
• CMake

• Basic 2D geometry added to the world.
• Basic player controls.
• Ability to push and move objects in the world.
• Introduction of entity memory pooling.

I did not take screenshots during this period.

Not a huge amount of time was spent working on the project during this period due to work and with the Christmas holidays. However, I did start a separate branch on the project for building my own line segment intersection algorithm.

The goal with this was to add a visibility system to the game so we could determine what is visible to a given entity.

This went through many changes as a result of the wrong strategy being used. The initial implementation worked for a set of rays in a radial pattern around the player entity. However, when joining these rays with a TriangleFan there was a lot of jagged edges, flickering and clipping over the corners of other world entities. Eventually, I managed to succeed in getting this to work.

Here are the changes summarised during this period:

• Visibility System with Line Segment Intersection

Screenshots

• The pinky block represents our player and light source.
• The yellow area represents the region the player can see.

Haven't had much time to work on this project over the last month, but except for one notable fix:

• Fixed a bug where the light rays would flicker when pushing entities in the game world.

• Added tiling to the world with single tileset.
• Add spawn point (blue tile)
• Add end zone (green tiles)
• Maintain performant visibility system without ray casting to each tile vertex.
• Arrow blocks can be pushed
• Add visibility system blend (sf::Multiply) for the background tiles to still remain visible while lit.

• Added a new tileset to game world (purple-dungeon-brick)
• Add spawn tiles
• Add end tiles
• Add patrolling guards (No guard texture, just a patrolling brick texture)
• Merged with existing tileset from Entry #4 (See the spawn zone and end zone)
• Add lower level for player-2 for Couch Co-op. (An idea I think I want to toy with is if one of the two player's is caught, the other player can additionally complete the opposing section of the map to beat the stage.)

• Catacomb asset texturing to world applied
• Enable multiple tile layers in world file to stack correctly.
• Enable multiple tile sets across multiple tile layers to render as expected.
• Guard pathing updated to patrol around catacombs.
• Update player spawn location(s)
• Update lighting approach to use polygons rather than rects. This greatly improves performance from the reduction in vertices.
• Update collision logic to be based on polygons and polylines rather than at the tile level.
• Add end zone to the stage that the player must reach to complete the stage.
• Add overlays to darken map and a lighter ellipse to give more visibility around player. This is done through blending ([multiply] and [add] respectively).

• https://ncase.me/sight-and-light/