default values for options are now specified alongside their definitions

overviewer_core/src/primitives/depth.c

@@ -26,11 +26,8 @@ static int
 depth_start(void *data, RenderState *state, PyObject *support) {
     PrimitiveDepth *self = (PrimitiveDepth *)data;
     
-    self->min = 0;
     if (!render_mode_parse_option(support, "min", "I", &(self->min)))
         return 1;
-
-    self->max = 127;
     if (!render_mode_parse_option(support, "max", "I", &(self->max)))
         return 1;
 

overviewer_core/src/primitives/edge-lines.c

@@ -24,8 +24,6 @@ typedef struct {
 static int
 edge_lines_start(void *data, RenderState *state, PyObject *support) {
     PrimitiveEdgeLines *self = (PrimitiveEdgeLines *)data;
-    
-    self->opacity = 0.15;
     if (!render_mode_parse_option(support, "opacity", "f", &(self->opacity)))
         return 1;
     return 0;

overviewer_core/src/rendermodes.c

@@ -176,16 +176,16 @@ int render_mode_parse_option(PyObject *support, const char *name, const char *fo
     int ret;
     
     if (support == NULL || name == NULL)
-        return 1;
+        return 0;
     
     dict = PyObject_GetAttrString(support, "option_values");
     if (!dict)
-        return 1;
+        return 0;
     
     item = PyDict_GetItemString(dict, name);
     if (item == NULL) {
         Py_DECREF(dict);
-        return 1;
+        return 0;
     };
     
     /* make sure the item we're parsing is a tuple