expose audio to twnlua

apps/twnlua/bindgen.py

@@ -34,7 +34,7 @@ def default(parameter):
 def to_table(typedesc, variable, indent = 0):
     binding = ' ' * indent + "lua_createtable(L, 0, %i);\n" % len(typedesc["fields"])
     for field in typedesc["fields"]:
-        if field["type"] == "float":
+        if field["type"] == "float" or field["type"] == "uint8_t":
             binding += ' ' * indent + "lua_pushnumber(L, (double)(%s));\n" % (variable + ".%s" % field["name"])
         elif field["type"] == "bool":
             binding += ' ' * indent + "lua_pushboolean(L, (%s));\n" % (variable + ".%s" % field["name"])
@@ -50,8 +50,8 @@ def from_table(typedesc, variable, indent = 0):
     binding = ""
     for field in typedesc["fields"]:
         binding += ' ' * indent + "lua_getfield(L, -1, \"%s\");\n" % field["name"]
-        if field["type"] == "float":
-            binding += ' ' * indent + "%s = (float)lua_tonumber(L, -1);\n" % (variable + ".%s" % field["name"])
+        if field["type"] == "float" or field["type"] == "uint8_t":
+            binding += ' ' * indent + "%s = (%s)lua_tonumber(L, -1);\n" % (variable + ".%s" % field["name"], field["type"])
         elif field["type"] == "bool":
             binding += ' ' * indent + "%s = lua_toboolean(L, -1);\n" % (variable + ".%s" % field["name"])
         elif field["type"] in api["types"]:

include/twn_audio.h

@@ -9,7 +9,7 @@
 /* plays audio file at specified channel or at scratch channel if NULL is passed, without ability to refer to it later */
 /* path path must contain valid file extension to infer which file format it is */
 /* supported formats: .ogg, .xm */
-TWN_API void audio_play(const char *path,
+TWN_API void audio_play(const char *audio,
                         const char *channel,    /* optional */
                         bool  repeat,           /* default: false */
                         float volume,           /* default: 1.0f, range: 0.0f to 1.0f */

share/twn_api.json

@@ -213,6 +213,30 @@
                 { "name": "textures", "type": "char *", "default": {} }
             ]
         },
+
+        "audio_play": {
+            "module": "audio",
+            "symbol": "play",
+            "header": "twn_audio.h",
+            "params": [
+                { "name": "audio", "type": "char *" },
+                { "name": "channel", "type": "char *", "default": {} },
+                { "name": "repeat", "type": "bool", "default": false },
+                { "name": "volume", "type": "float", "default": 1.0 },
+                { "name": "panning", "type": "float", "default": 0.0 }
+            ]
+        },
+
+        "audio_parameter": {
+            "module": "audio",
+            "symbol": "parameter",
+            "header": "twn_audio.h",
+            "params": [
+                { "name": "channel", "type": "char *" },
+                { "name": "parameter", "type": "char *" },
+                { "name": "value", "type": "float" }
+            ]
+        }
     },
 
     "types": {