SectrPrototype/code/api.odin
Ed_ f76ba4e9ba Lots of stuff (Big ones are cam and frame initial features)
There is now a 2D camera in the workspace!
We have a basic 'Frame' definition. It doesn't have any interaction yet...

I started to define spacial math, mostly for doing conversion and getting a grounding on pixel/points/cm reference. The world space is in cm.
2024-02-10 03:40:53 -05:00

185 lines
5.0 KiB
Odin

package sectr
import "base:runtime"
import "core:dynlib"
import "core:fmt"
import "core:mem"
import "core:mem/virtual"
import "core:os"
import "core:slice"
import "core:strings"
import rl "vendor:raylib"
Path_Assets :: "../assets/"
Path_Input_Replay :: "scratch.sectr_replay"
ModuleAPI :: struct {
lib : dynlib.Library,
write_time : os.File_Time,
lib_version : i32,
startup : type_of( startup ),
shutdown : type_of( sectr_shutdown),
reload : type_of( reload ),
tick : type_of( tick ),
clean_temp : type_of( clean_temp ),
}
@export
startup :: proc( live_mem : virtual.Arena, snapshot_mem : []u8, host_logger : ^ Logger )
{
init( & memory.logger, "Sectr", host_logger.file_path, host_logger.file )
context.logger = to_odin_logger( & memory.logger )
// Setup memory for the first time
{
arena_size :: size_of( mem.Arena)
internals_size :: 4 * Megabyte
using memory;
block := live_mem.curr_block
live = live_mem
snapshot = snapshot_mem
persistent_slice := slice_ptr( block.base, memory_persistent_size )
transient_slice := slice_ptr( memory_after( persistent_slice), memory_trans_temp_size )
temp_slice := slice_ptr( memory_after( transient_slice), memory_trans_temp_size )
// We assign the beginning of the block to be the host's persistent memory's arena.
// Then we offset past the arena and determine its slice to be the amount left after for the size of host's persistent.
persistent = tracked_allocator_init_vmem( persistent_slice, internals_size )
transient = tracked_allocator_init_vmem( transient_slice, internals_size )
temp = tracked_allocator_init_vmem( temp_slice , internals_size )
context.allocator = tracked_allocator( transient )
context.temp_allocator = tracked_allocator( temp )
}
state := new( State, tracked_allocator( memory.persistent ) )
using state
context.user_ptr = state
input = & input_data[1]
input_prev = & input_data[0]
// Rough setup of window with rl stuff
screen_width = 1920
screen_height = 1080
win_title : cstring = "Sectr Prototype"
rl.InitWindow( screen_width, screen_height, win_title )
log( "Raylib initialized and window opened" )
// We do not support non-uniform DPI.
screen_dpi_scale = rl.GetWindowScaleDPI().x
screen_dpc = os_default_dpc * screen_dpi_scale
// Determining current monitor and setting the target frametime based on it..
monitor_id = rl.GetCurrentMonitor()
monitor_refresh_hz = rl.GetMonitorRefreshRate( monitor_id )
rl.SetTargetFPS( monitor_refresh_hz )
log( fmt.tprintf( "Set target FPS to: %v", monitor_refresh_hz ) )
// Basic Font Setup
{
path_rec_mono_semicasual_reg := strings.concatenate( { Path_Assets, "RecMonoSemicasual-Regular-1.084.ttf" })
cstr := strings.clone_to_cstring( path_rec_mono_semicasual_reg )
font_rec_mono_semicasual_reg = rl.LoadFontEx( cstr, 24, nil, 0 )
delete( cstr)
rl.GuiSetFont( font_rec_mono_semicasual_reg ) // TODO(Ed) : Does this do anything?
default_font = font_rec_mono_semicasual_reg
log( "Default font loaded" )
}
{
using project
path = "./"
name = "First Project"
workspace.name = "First Workspace"
{
using project.workspace
cam = {
target = { 0, 0 },
offset = { f32(screen_width) / 2, f32(screen_height) / 2 },
rotation = 0,
zoom = 1.0,
}
// cam = {
// position = { 0, 0, -100 },
// target = { 0, 0, 0 },
// up = { 0, 1, 0 },
// fovy = 90,
// projection = rl.CameraProjection.ORTHOGRAPHIC,
// }
frame_1.color = Color_BG_TextBox
// Frame is getting interpreted as points (It doesn't have to be, I'm just doing it...)
frame_1.width = 400
frame_1.height = 250
}
}
}
// For some reason odin's symbols conflict with native foreign symbols...
@export
sectr_shutdown :: proc()
{
if memory.persistent == nil {
return
}
state := get_state()
// Replay
{
os.close( memory.replay.active_file )
}
// Raylib
{
rl.UnloadFont ( state.font_rec_mono_semicasual_reg )
rl.CloseWindow()
}
log("Module shutdown complete")
}
@export
reload :: proc( live_mem : virtual.Arena, snapshot_mem : []u8, host_logger : ^ Logger )
{
using memory;
block := live_mem.curr_block
live = live_mem
snapshot = snapshot_mem
persistent_slice := slice_ptr( block.base, memory_persistent_size )
transient_slice := slice_ptr( memory_after( persistent_slice), memory_trans_temp_size )
temp_slice := slice_ptr( memory_after( transient_slice), memory_trans_temp_size )
persistent = cast( ^TrackedAllocator ) & persistent_slice[0]
transient = cast( ^TrackedAllocator ) & transient_slice[0]
temp = cast( ^TrackedAllocator ) & temp_slice[0]
log("Module reloaded")
}
// TODO(Ed) : This lang really not have a fucking swap?
swap :: proc( a, b : ^ $Type ) -> ( ^ Type, ^ Type ) {
return b, a
}
@export
tick :: proc ( delta_time : f64 ) -> b32
{
result := update( delta_time )
render()
return result
}
@export
clean_temp :: proc()
{
mem.tracking_allocator_clear( & memory.temp.tracker )
}