OOJSExhaustPlume.m

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/*
OOJSExhaustPlume.m
 
Oolite
Copyright (C) 2004-2013 Giles C Williams and contributors
 
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
 
 */
 
#import "OOExhaustPlumeEntity.h"
#import "OOJSExhaustPlume.h"
#import "OOJSEntity.h"
#import "OOJSVector.h"
#import "OOJavaScriptEngine.h"
#import "EntityOOJavaScriptExtensions.h"
#import "ShipEntity.h"
 
 
static JSObject     *sExhaustPlumePrototype;
 
static BOOL JSExhaustPlumeGetExhaustPlumeEntity(JSContext *context, JSObject *jsobj, OOExhaustPlumeEntity **outEntity);
 
 
static JSBool ExhaustPlumeGetProperty(JSContext *context, JSObject *this, jsid propID, jsval *value);
static JSBool ExhaustPlumeSetProperty(JSContext *context, JSObject *this, jsid propID, JSBool strict, jsval *value);
 
static JSBool ExhaustPlumeRemove(JSContext *context, uintN argc, jsval *vp);
 
 
static JSClass sExhaustPlumeClass =
{
    "ExhaustPlume",
    JSCLASS_HAS_PRIVATE,
    
    JS_PropertyStub,        // addProperty
    JS_PropertyStub,        // delProperty
    ExhaustPlumeGetProperty,        // getProperty
    ExhaustPlumeSetProperty,        // setProperty
    JS_EnumerateStub,       // enumerate
    JS_ResolveStub,         // resolve
    JS_ConvertStub,         // convert
    OOJSObjectWrapperFinalize,// finalize
    JSCLASS_NO_OPTIONAL_MEMBERS
};
 
 
enum
{
    // Property IDs
    kExhaustPlume_size
};
 
 
static JSPropertySpec sExhaustPlumeProperties[] =
{
    // JS name                      ID                                  flags
    { "size",               kExhaustPlume_size,         OOJS_PROP_READWRITE_CB },
    { 0 }
};
 
 
static JSFunctionSpec sExhaustPlumeMethods[] =
{
    // JS name                  Function                        min args
    { "remove",         ExhaustPlumeRemove,    0 },
 
    { 0 }
};
 
 
void InitOOJSExhaustPlume(JSContext *context, JSObject *global)
{
    sExhaustPlumePrototype = JS_InitClass(context, global, JSEntityPrototype(), &sExhaustPlumeClass, OOJSUnconstructableConstruct, 0, sExhaustPlumeProperties, sExhaustPlumeMethods, NULL, NULL);
    OOJSRegisterObjectConverter(&sExhaustPlumeClass, OOJSBasicPrivateObjectConverter);
    OOJSRegisterSubclass(&sExhaustPlumeClass, JSEntityClass());
}
 
 
static BOOL JSExhaustPlumeGetExhaustPlumeEntity(JSContext *context, JSObject *jsobj, OOExhaustPlumeEntity **outEntity)
{
    OOJS_PROFILE_ENTER
    
    BOOL                        result;
    Entity                      *entity = nil;
    
    if (outEntity == NULL)  return NO;
    *outEntity = nil;
    
    result = OOJSEntityGetEntity(context, jsobj, &entity);
    if (!result)  return NO;
    
    if (![entity isKindOfClass:[OOExhaustPlumeEntity class]])  return NO;
    
    *outEntity = (OOExhaustPlumeEntity *)entity;
    return YES;
    
    OOJS_PROFILE_EXIT
}
 
 
@implementation OOExhaustPlumeEntity (OOJavaScriptExtensions)
 
- (void)getJSClass:(JSClass **)outClass andPrototype:(JSObject **)outPrototype
{
    *outClass = &sExhaustPlumeClass;
    *outPrototype = sExhaustPlumePrototype;
}
 
 
- (NSString *) oo_jsClassName
{
    return @"ExhaustPlume";
}
 
- (BOOL) isVisibleToScripts
{
    return YES;
}
 
@end
 
 
static JSBool ExhaustPlumeGetProperty(JSContext *context, JSObject *this, jsid propID, jsval *value)
{
    if (!JSID_IS_INT(propID))  return YES;
    
    OOJS_NATIVE_ENTER(context)
    
    OOExhaustPlumeEntity                *entity = nil;
    id result = nil;
    
    if (!JSExhaustPlumeGetExhaustPlumeEntity(context, this, &entity))  return NO;
    if (entity == nil)  { *value = JSVAL_VOID; return YES; }
    
    switch (JSID_TO_INT(propID))
    {
        case kExhaustPlume_size:
            return VectorToJSValue(context, [entity scale], value);
 
        default:
            OOJSReportBadPropertySelector(context, this, propID, sExhaustPlumeProperties);
            return NO;
    }
 
    *value = OOJSValueFromNativeObject(context, result);
    return YES;
    
    OOJS_NATIVE_EXIT
}
 
 
static JSBool ExhaustPlumeSetProperty(JSContext *context, JSObject *this, jsid propID, JSBool strict, jsval *value)
{
    if (!JSID_IS_INT(propID))  return YES;
    
    OOJS_NATIVE_ENTER(context)
    
    OOExhaustPlumeEntity                *entity = nil;
    Vector          vValue;
    
    if (!JSExhaustPlumeGetExhaustPlumeEntity(context, this, &entity)) return NO;
    if (entity == nil)  return YES;
    
    switch (JSID_TO_INT(propID))
    {
        case kExhaustPlume_size:
            if (JSValueToVector(context, *value, &vValue))
            {
                [entity setScale:vValue];
                return YES;
            }
            break;
 
        default:
            OOJSReportBadPropertySelector(context, this, propID, sExhaustPlumeProperties);
            return NO;
    }
    
    OOJSReportBadPropertyValue(context, this, propID, sExhaustPlumeProperties, *value);
    return NO;
    
    OOJS_NATIVE_EXIT
}
 
 
// *** Methods ***
 
#define GET_THIS_EXHAUSTPLUME(THISENT) do { \
    if (EXPECT_NOT(!JSExhaustPlumeGetExhaustPlumeEntity(context, OOJS_THIS, &THISENT)))  return NO; /* Exception */ \
    if (OOIsStaleEntity(THISENT))  OOJS_RETURN_VOID; \
} while (0)
 
 
static JSBool ExhaustPlumeRemove(JSContext *context, uintN argc, jsval *vp)
{
    OOJS_NATIVE_ENTER(context)
    
    OOExhaustPlumeEntity                *thisEnt = nil;
    GET_THIS_EXHAUSTPLUME(thisEnt);
    
    ShipEntity              *parent = [thisEnt owner];
    [parent removeExhaust:thisEnt];
 
    OOJS_RETURN_VOID;
    
    OOJS_NATIVE_EXIT
}