hexgame/TODO.md

TODO:

• position entities on grid hexes
• pathfinding
• assimp animation
• map generation
• gooey
  • add object inspector window
    • modify position, scaling, rotation
    • show vertex count, mesh filename, ...
  • add 3d orientation widget to gooey
• renderer
  • add name property to render_group to help debugging
  • consolodate textures into just the render_state->palette_image
    • update copyMeshInfo() and meMeshInfo struct to remove image loading from filename
    • update rgInitEntity() to set tex_id of palette_image
    • remove render_object->use_texture
  • check over renderer, camera, gooey init after changes
  • pass in frame time to camera movement functions to decouple speed from framerate
  • test camera speed when moving with composite vector
    • may be fixed?? need to test by examining camera position between frames and compare the distance
  • debug lighting (using multiple lights doesn't add correctly atm
    • move glUniform call to lights[i].position out of rgDraw, and into scene_loader init phase
    • show debug mesh for light positions
    • attenuate point lights in shader
  • simplify render_object buffers into 2d array or vector, and use stride when pushing to GL
  • render debug bounding boxes for meshes (including hexgrid)
• remove checks for colors, textures from render_group functions
  • actually cannot remove checks for texture because some meshes aren't loaded properly
  • maybe can cause loading mesh to fail when more than one mesh per file
• figure out bug in fragment shader when removing commented line
• move input handling out to new file, controller?
• replace aixlog with custom logging iostream?
• think about combining mesh data and render_group data to save some memory
  • actually don't need to save the vertex/normal buffers after passing to opengl
• use a storage pool for assimp meshes allowing reuse across entities
• remove v2i/v3f... etc from util.h and either use glm everywhere, or write a smaller linear math.h
• add an application config file and structure to replace various defines
  • be sure to put a max_property_length or similar for c-string properties

LATER TODO:

• add initial opengl constant for INT_MAX, and checks in render_group functions
• try out YAML instead of JSON (make sure can still use schema validation)
  • there's a bug when changing hex_grid.hex_radius from a 2 digit number to a 1 digit number in test_scene.json
  • also noticing more bugs with rapidjson schema validation, "required" fields don't seem to always cause validation to fail
• move from COLLADA output to glTF (GL Transmission Format) https://www.khronos.org/gltf/
• add config.js/yaml for application config (remove some defines everywhere)
• maybe try deferred rendering at some point to use a ton of lights
• use assimp material info in shaders for fancier lighting
• add fancy GL error handler https://gist.github.com/liam-middlebrook/c52b069e4be2d87a6d2f
• add cpu performance counters in render loop
  • hgUpdateUVBuffer can probably be improved by adding selected hexes to a small cache structure
  • can also try passing in small chunks with glBufferSubData instead of overwriting whole buffer
• check for memory leaks w/ valgrind

DONE: