refactor: reorganize pxl8 into client/src/ module structure

- core/: main entry, types, logging, I/O, RNG
- asset/: ase loader, cart, save, embed
- gfx/: graphics, animation, atlas, fonts, tilemap, transitions
- sfx/: audio
- script/: lua/fennel runtime, REPL
- hal/: platform abstraction (SDL3)
- world/: BSP, world, procedural gen
- math/: math utilities
- game/: GUI, replay
- lua/: Lua API modules

src/pxl8_bsp.h

@@ -1,140 +0,0 @@
-#pragma once
-
-#include "pxl8_gfx.h"
-#include "pxl8_math.h"
-#include "pxl8_types.h"
-
-typedef struct pxl8_bsp_edge {
-    u16 vertex[2];
-} pxl8_bsp_edge;
-
-typedef struct pxl8_bsp_face {
-    u32 first_edge;
-    u32 lightmap_offset;
-    u16 num_edges;
-    u16 plane_id;
-    u16 side;
-
-    u8 styles[4];
-    u16 texinfo_id;
-
-    pxl8_vec3 aabb_min;
-    pxl8_vec3 aabb_max;
-} pxl8_bsp_face;
-
-typedef struct pxl8_bsp_leaf {
-    u8 ambient_level[4];
-    i32 contents;
-
-    u16 first_marksurface;
-    i16 maxs[3];
-    i16 mins[3];
-    u16 num_marksurfaces;
-
-    i32 visofs;
-} pxl8_bsp_leaf;
-
-typedef struct pxl8_bsp_model {
-    i32 first_face;
-    i32 headnode[4];
-    f32 maxs[3];
-    f32 mins[3];
-    i32 num_faces;
-
-    pxl8_vec3 origin;
-    i32 visleafs;
-} pxl8_bsp_model;
-
-typedef struct pxl8_bsp_node {
-    i32 children[2];
-
-    u16 first_face;
-    i16 maxs[3];
-    i16 mins[3];
-    u16 num_faces;
-
-    u32 plane_id;
-} pxl8_bsp_node;
-
-typedef struct pxl8_bsp_plane {
-    f32 dist;
-    pxl8_vec3 normal;
-    i32 type;
-} pxl8_bsp_plane;
-
-typedef struct pxl8_bsp_texinfo {
-    u32 miptex;
-    char name[16];
-
-    f32 u_offset;
-    pxl8_vec3 u_axis;
-
-    f32 v_offset;
-    pxl8_vec3 v_axis;
-} pxl8_bsp_texinfo;
-
-typedef struct pxl8_bsp_vertex {
-    pxl8_vec3 position;
-} pxl8_bsp_vertex;
-
-typedef struct pxl8_bsp {
-    pxl8_bsp_edge* edges;
-    pxl8_bsp_face* faces;
-    pxl8_bsp_leaf* leafs;
-    u8* lightdata;
-    u16* marksurfaces;
-    pxl8_bsp_model* models;
-    pxl8_bsp_node* nodes;
-    pxl8_bsp_plane* planes;
-    i32* surfedges;
-    pxl8_bsp_texinfo* texinfo;
-    pxl8_bsp_vertex* vertices;
-    u8* visdata;
-
-    u32 lightdata_size;
-    u32 num_edges;
-    u32 num_faces;
-    u32 num_leafs;
-    u32 num_marksurfaces;
-    u32 num_models;
-    u32 num_nodes;
-    u32 num_planes;
-    u32 num_surfedges;
-    u32 num_texinfo;
-    u32 num_vertices;
-    u32 visdata_size;
-} pxl8_bsp;
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-pxl8_result pxl8_bsp_load(const char* path, pxl8_bsp* bsp);
-void pxl8_bsp_destroy(pxl8_bsp* bsp);
-
-i32 pxl8_bsp_find_leaf(const pxl8_bsp* bsp, pxl8_vec3 pos);
-bool pxl8_bsp_is_leaf_visible(const pxl8_bsp* bsp, i32 leaf_from, i32 leaf_to);
-
-void pxl8_bsp_render_face(
-    pxl8_gfx* gfx,
-    const pxl8_bsp* bsp,
-    u32 face_id,
-    u32 texture_id
-);
-
-void pxl8_bsp_render_textured(
-    pxl8_gfx* gfx,
-    const pxl8_bsp* bsp,
-    pxl8_vec3 camera_pos
-);
-
-void pxl8_bsp_render_wireframe(
-    pxl8_gfx* gfx,
-    const pxl8_bsp* bsp,
-    pxl8_vec3 camera_pos,
-    u32 color
-);
-
-#ifdef __cplusplus
-}
-#endif