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Tilemaps can now load their own physics engines from map properties. The gravity for the arcade simulation is acting a little funny when populated from the map properties.

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This commit is contained in:
Andrew Kesterson
2026-06-02 17:11:16 -04:00
parent 9fed59c4c8
commit 652ee4cdf3
7 changed files with 221 additions and 76 deletions
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2
include/akgl/SDL_GameControllerDB.h
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@@ -1,7 +1,7 @@
#ifndef _SDL_GAMECONTROLLERDB_H_
#define _SDL_GAMECONTROLLERDB_H_
// Taken from https://raw.githubusercontent.com/mdqinc/SDL_GameControllerDB/refs/heads/master/gamecontrollerdb.txt on Tue Jun 2 01:14:32 PM EDT 2026
// Taken from https://raw.githubusercontent.com/mdqinc/SDL_GameControllerDB/refs/heads/master/gamecontrollerdb.txt on Tue Jun 2 04:45:53 PM EDT 2026
#define AKGL_SDL_GAMECONTROLLER_DB_LEN 2229

3
include/akgl/json_helpers.h
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@@ -8,10 +8,13 @@ akerr_ErrorContext AKERR_NOIGNORE *akgl_get_json_object_value(json_t *obj, char
akerr_ErrorContext AKERR_NOIGNORE *akgl_get_json_boolean_value(json_t *obj, char *key, bool *dest);
akerr_ErrorContext AKERR_NOIGNORE *akgl_get_json_integer_value(json_t *obj, char *key, int *dest);
akerr_ErrorContext AKERR_NOIGNORE *akgl_get_json_number_value(json_t *obj, char *key, float *dest);
akerr_ErrorContext AKERR_NOIGNORE *akgl_get_json_double_value(json_t *obj, char *key, double *dest);
akerr_ErrorContext AKERR_NOIGNORE *akgl_get_json_string_value(json_t *obj, char *key, akgl_String **dest);
akerr_ErrorContext AKERR_NOIGNORE *akgl_get_json_array_value(json_t *obj, char *key, json_t **dest);
akerr_ErrorContext AKERR_NOIGNORE *akgl_get_json_array_index_object(json_t *array, int index, json_t **dest);
akerr_ErrorContext AKERR_NOIGNORE *akgl_get_json_array_index_integer(json_t *array, int index, int *dest);
akerr_ErrorContext AKERR_NOIGNORE *akgl_get_json_array_index_string(json_t *array, int index, akgl_String **dest);
akerr_ErrorContext AKERR_NOIGNORE *akgl_get_json_with_default(akerr_ErrorContext *e, void *defval, void *dest, uint32_t defsize);
#endif // _JSON_HELPERS_H_

3
include/akgl/physics.h
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@@ -5,6 +5,7 @@
#include <akerror.h>
#include <akgl/actor.h>
#include <akgl/iterator.h>
#include <akgl/staticstring.h>
typedef struct akgl_PhysicsBackend {
akerr_ErrorContext AKERR_NOIGNORE *(*simulate)(struct akgl_PhysicsBackend *self, akgl_Iterator *opflags);
@@ -33,7 +34,7 @@ akerr_ErrorContext AKERR_NOIGNORE *akgl_physics_arcade_collide(akgl_PhysicsBacke
akerr_ErrorContext AKERR_NOIGNORE *akgl_physics_arcade_move(akgl_PhysicsBackend *self, akgl_Actor *actor, float32_t dt);
akerr_ErrorContext AKERR_NOIGNORE *akgl_physics_init_arcade(akgl_PhysicsBackend *self);
akerr_ErrorContext AKERR_NOIGNORE *akgl_physics_factory(akgl_PhysicsBackend *self, akgl_String *type);
akerr_ErrorContext AKERR_NOIGNORE *akgl_physics_simulate(akgl_PhysicsBackend *self, akgl_Iterator *opflags);

9
include/akgl/tilemap.h
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@@ -2,8 +2,9 @@
#define _TILEMAP_H_
#include <limits.h>
#include "actor.h"
#include "staticstring.h"
#include <akgl/actor.h>
#include <akgl/staticstring.h>
#include <akgl/physics.h>
#include <jansson.h>
#define AKGL_TILEMAP_MAX_WIDTH 512
@@ -98,6 +99,10 @@ typedef struct {
float p_rate;
akgl_Tileset tilesets[AKGL_TILEMAP_MAX_TILESETS];
akgl_TilemapLayer layers[AKGL_TILEMAP_MAX_LAYERS];
// Different levels may have different physics.
bool use_own_physics;
akgl_PhysicsBackend physics;
} akgl_Tilemap;
akerr_ErrorContext AKERR_NOIGNORE *akgl_tilemap_load(char *fname, akgl_Tilemap *dest);