Adding a start screen led to cleaning up some initialisation processes. Dengine
now formally initialises subsystems from the respective .h files instead of
ad-hoc from the main game file.
Triangle strips were originally by chance were rendering correct for most cases
until collision detection was implemented. Incorrect assumptions about
specifying triangle strip winding order meant that on occasion the last triangle
in a polygon would not be rendered.
This has been amended by strictly ensuring that on rendering of polygon the
order is correct from the vertices that are passed in.
Asteroids move and are a part of the entity sytem. Added some debug markers for
memory usage and fixed a bug in logic causing degenerate triangles to show up
depending on the angle of approach towards the origin.
Switch to something of smaller scope in aim to be able to finish a project from
start to finish. Also allow refreshed eyes to review the existing API and see
what can be improved on after taking a short break from the project.
No longer repeatedly invoke malloc for retrieving memory. Some operations still
leak memory (notably audio streaming). We introduce notion of Transient and
Permanent storage. Transient memory is used for data in memory that is
temporarily allocated (i.e. graphics for that frame's output), and permanent as
more like game state storage.
We now give out pointers from a pre-allocated block of memory, so we have no
allocation cost and benefits of reduced memory leaks. The transient block gets
reset every frame. Any memory allocated within is cleared at no cost simply by
rearranging the base pointer of the memory block.
Attempting to add child weapon data to an entity has revealed the need for an
entity origin to which children start transformations from. Worth exploring
scene graphs in the future.
Main change is switching the camera to use a rectangle. There is no rect
change in renderer for grouping size and position together. Due to
noticing the use case of rendering- where it's convenient to be able to
offset the rectangle from the position value when passed into the
function explicitly without having to re-create offset Rectangle structs
to pass in.
Use event queue to decouple audio playback from the battle system. Switch
back to using begin and end attack within the entity update loop for
conciseness.
Until engine architecture can clearly be separated from the game, i.e.
notion of entity storage belonging to game and concept of entity belonging
to engine, worlds/scenes belonging to game or engine- the project will
only refer to Dengine.
Notion of pivot point now for rotating, i.e. the anchor point at which
rotations are applied. Rotating the reticule is done by using inverse
trigonometry, namely atan2f.
Mobs battle in real-time with the hero when in range. Start encapsulating
logic into entityStateSwitch() to organise entity properties changing
between different states.
Introduce basic concept of memory management in MemoryArena. Begin passing
around a memory object to track memory usage and eventually delegate
memory allocations through. Remove the old memory tracker in the debug
object and incorporate into engine primarily.
Add a debug console for logging information and events to the screen in
a console-like fashion. Debug is now initialised after the game, this is
so that you can pass the game's memory arena and font file to the debug
services. Debug services now properly initialise debug element positions
from this information and not through the update routine.
The main debug drawing elements have been moved to debug.c to avoid
cluttering up the main game file. The downside is that thus far the debug
values only track values post-update.
We have a notion of begin attack and end attack to allow code to drive the
animation system and apply effects after an attack animation has
completed.
Separate notion of rendering a static string, i.e. for debug display that
is absolutely positioned, and rendering of a regular string that moves
with the game camera.
