85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/* hmap/hmap_c.h - plain C API over libhmap for engines, scripting languages and FFI.
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*
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* hmap_map* m = hmap_load("level.hmap", err, sizeof err);
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* for (uint32_t i = 0; i < hmap_batch_count(m); ++i) {
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* hmap_batch b; hmap_get_batch(m, i, &b);
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* // upload b.vertices / b.indices, bind texture hmap_material_texture(m, b.material)
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* }
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* hmap_trace t; hmap_trace_segment(m, from, to, HMAP_CONTENTS_SOLID, &t);
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* hmap_free(m);
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*
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* Units: map units, +Y up, forward -Z. Pointers stay valid until hmap_free().
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*/
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#ifndef HMAP_C_H
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#define HMAP_C_H
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#include <stddef.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define HMAP_CONTENTS_SOLID 1u
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#define HMAP_CONTENTS_WATER 2u
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#define HMAP_CONTENTS_CLIP 4u
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#define HMAP_CONTENTS_TRIGGER 8u
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#define HMAP_CONTENTS_SKY 16u
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typedef struct hmap_map hmap_map;
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typedef struct {
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float pos[3];
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float normal[3];
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float uv[2];
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uint32_t color; /* 0xAABBGGRR, baked vertex light */
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} hmap_vertex;
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typedef struct {
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int32_t material;
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int32_t model; /* 0 = world, >0 = brush-entity sub-model */
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int32_t is_mesh; /* 0 = BSP/brush geometry, 1 = mesh object */
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uint32_t vertex_count;
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const hmap_vertex* vertices;
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uint32_t index_count; /* triangle list */
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const uint32_t* indices;
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} hmap_batch;
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typedef struct {
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int hit;
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float fraction;
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float point[3];
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float normal[3];
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uint32_t contents;
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uint32_t object_id;
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int start_solid;
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} hmap_trace;
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/* Loads a .hmap file (compiled data is used when present, otherwise the source is compiled). */
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hmap_map* hmap_load(const char* path, char* err, size_t err_len);
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void hmap_free(hmap_map* m);
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uint32_t hmap_batch_count(const hmap_map* m);
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int hmap_get_batch(const hmap_map* m, uint32_t index, hmap_batch* out);
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uint32_t hmap_material_count(const hmap_map* m);
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const char* hmap_material_name(const hmap_map* m, uint32_t index);
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const char* hmap_material_texture(const hmap_map* m, uint32_t index);
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uint32_t hmap_entity_count(const hmap_map* m);
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const char* hmap_entity_classname(const hmap_map* m, uint32_t index);
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void hmap_entity_origin(const hmap_map* m, uint32_t index, float out[3]);
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void hmap_entity_angles(const hmap_map* m, uint32_t index, float out[3]); /* pitch, yaw, roll degrees */
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const char* hmap_entity_get(const hmap_map* m, uint32_t index, const char* key); /* NULL if missing */
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uint32_t hmap_point_contents(const hmap_map* m, const float p[3]);
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int hmap_trace_segment(const hmap_map* m, const float from[3], const float to[3], uint32_t mask, hmap_trace* out);
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int hmap_export_fbx(const hmap_map* m, const char* path); /* 1 on success */
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#ifdef __cplusplus
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}
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#endif
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#endif /* HMAP_C_H */
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