progress on twnlua bindgen
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veclavtalica
parent
8c401eda75
commit
f3848d2d52
@ -31,6 +31,20 @@ def default(parameter):
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raise BaseException("Unhandled default value of type '%s'" % parameter["type"])
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def to_table(typedesc, variable, indent = 0):
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binding = ' ' * indent + "lua_newtable(L);\n"
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for field in typedesc["fields"]:
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if field["type"] == "float":
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binding += ' ' * indent + "lua_pushnumber(L, (double)(%s));\n" % (variable + ".%s" % field["name"])
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elif field["type"] in api["types"]:
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binding += to_table(api["types"][field["type"]], variable + ".%s" % field["name"], indent + 4)
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else:
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raise BaseException("Unhandled return field type '%s'" % (field["type"]))
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binding += ' ' * indent + "lua_setfield(L, -2, \"%s\");\n" % field["name"]
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# binding += ' ' * indent + "lua_pop(L, 1);\n"
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return binding
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print('#include "twn_game_api.h"\n')
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print('#define STB_DS_IMPLEMENTATION') # TODO: reuse implementation from the engine
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print('#include <stb_ds.h>')
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@ -115,8 +129,15 @@ for procedure, procedure_desc in api["procedures"].items():
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binding += " lua_pushboolean(L, (int)%s(%s));\n" % (procedure, ", ".join(param["name"] for param in procedure_desc["params"]))
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elif procedure_desc["return"] == "float":
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binding += " lua_pushnumber(L, (double)%s(%s));\n" % (procedure, ", ".join(param["name"] for param in procedure_desc["params"]))
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elif procedure_desc["return"] == "char *":
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binding += " lua_pushstring(L, %s(%s));\n" % (procedure, ", ".join(param["name"] for param in procedure_desc["params"]))
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elif type(procedure_desc["return"]) is dict or procedure_desc["return"] in api["types"]:
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# TODO: handle enums
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type_desc = procedure_desc["return"] if type(procedure_desc["return"]) is dict else api["types"][procedure_desc["return"]]
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binding += " %s result = %s(%s);\n" % (type_desc["c_type"], procedure, ", ".join(param["name"] for param in procedure_desc["params"]))
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binding += to_table(type_desc, "result", 4)
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else:
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binding += " lua_warning(L, \"Unhandled return type!\", 0);\n"
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raise BaseException("Unhandled return type '%s'" % (procedure_desc["return"]))
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binding += " return 1;\n}\n"
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else:
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binding += " %s(%s);\n" % (procedure, ", ".join(param["name"] for param in procedure_desc["params"]))
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@ -132,9 +153,8 @@ for module in modules:
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loader += " lua_newtable(L);\n"
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for procedure, procedure_desc in api["procedures"].items():
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if procedure_desc["module"] == module:
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loader += " lua_pushstring(L, \"%s\");\n" % procedure_desc["symbol"]
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loader += " lua_pushcfunction(L, binding_%s);\n" % procedure
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loader += " lua_settable(L, -3);\n"
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loader += " lua_setfield(L, -2, \"%s\");\n" % procedure_desc["symbol"]
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loader += " lua_setglobal(L, \"%s\");\n" % module
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loader += "}"
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@ -64,7 +64,7 @@ TWN_API void draw_billboard(const char *texture,
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/* sets a perspective 3d camera to be used for all 3d commands */
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TWN_API void draw_camera(Vec3 position, float fov, Vec3 up, Vec3 direction);
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/* same as draw_camera(), but with specific use case */
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/* same as draw_camera(), but with first person controller in mind */
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/* direction and up vectors are inferred from roll, pitch and yaw parameters (in radians) */
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/* return value is direction and up vectors, so that you can use them in logic (such as controllers) */
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typedef struct DrawCameraFromPrincipalAxesResult {
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@ -167,6 +167,38 @@
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]
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},
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"draw_camera": {
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"module": "draw",
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"symbol": "camera",
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"header": "twn_draw.h",
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"params": [
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{ "name": "position", "type": "Vec3" },
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{ "name": "fov", "type": "float" },
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{ "name": "up", "type": "Vec3" },
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{ "name": "direction", "type": "Vec3" }
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]
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},
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"draw_camera_from_principal_axes": {
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"module": "draw",
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"symbol": "camera_from_principal_axes",
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"header": "twn_draw.h",
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"params": [
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{ "name": "position", "type": "Vec3" },
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{ "name": "fov", "type": "float" },
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{ "name": "roll", "type": "float" },
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{ "name": "pitch", "type": "float" },
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{ "name": "yaw", "type": "float" }
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],
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"return": {
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"fields": [
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{ "name": "direction", "type": "Vec3" },
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{ "name": "up", "type": "Vec3" }
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],
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"c_type": "DrawCameraFromPrincipalAxesResult"
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}
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},
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"draw_skybox": {
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"module": "draw",
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"symbol": "skybox",
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@ -194,7 +226,8 @@
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"fields": [
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{ "name": "x", "type": "float" },
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{ "name": "y", "type": "float" }
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]
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],
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"c_type": "Vec2"
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},
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"Vec3": {
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@ -202,7 +235,8 @@
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{ "name": "x", "type": "float" },
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{ "name": "y", "type": "float" },
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{ "name": "z", "type": "float" }
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]
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],
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"c_type": "Vec3"
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},
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"Vec4": {
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@ -211,7 +245,8 @@
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{ "name": "y", "type": "float" },
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{ "name": "z", "type": "float" },
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{ "name": "w", "type": "float" }
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]
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],
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"c_type": "Vec4"
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},
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"Color": {
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@ -220,7 +255,8 @@
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{ "name": "g", "type": "uint8_t" },
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{ "name": "b", "type": "uint8_t" },
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{ "name": "a", "type": "uint8_t" }
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]
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],
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"c_type": "Color"
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},
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"Rect": {
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@ -229,7 +265,8 @@
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{ "name": "y", "type": "float" },
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{ "name": "w", "type": "float" },
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{ "name": "h", "type": "float" }
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]
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],
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"c_type": "Rect"
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},
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"Control": {
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