267 lines
7.6 KiB
C++
Executable File
267 lines
7.6 KiB
C++
Executable File
#include "precompiled.h"
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#include "JSInterface_Camera.h"
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#include "scripting/JSInterface_Vector3D.h"
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#include "Camera.h"
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#include "Vector3D.h"
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#include "Matrix3D.h"
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#include "Terrain.h"
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#include "Game.h"
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JSClass JSI_Camera::JSI_class = {
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"Camera", JSCLASS_HAS_PRIVATE,
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JS_PropertyStub, JS_PropertyStub,
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JSI_Camera::getProperty, JSI_Camera::setProperty,
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JS_EnumerateStub, JS_ResolveStub,
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JS_ConvertStub, JSI_Camera::finalize,
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NULL, NULL, NULL, NULL
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};
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JSPropertySpec JSI_Camera::JSI_props[] =
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{
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{ "position", JSI_Camera::vector_position, JSPROP_ENUMERATE },
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{ "orientation", JSI_Camera::vector_orientation, JSPROP_ENUMERATE },
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{ "up", JSI_Camera::vector_up, JSPROP_ENUMERATE },
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{ 0 },
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};
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JSFunctionSpec JSI_Camera::JSI_methods[] =
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{
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{ "lookAt", JSI_Camera::lookAt, 2, 0, 0 },
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{ "getFocus", JSI_Camera::getFocus, 0, 0, 0 },
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{ 0 }
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};
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void JSI_Camera::init()
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{
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g_ScriptingHost.DefineCustomObjectType( &JSI_class, JSI_Camera::construct, 0, JSI_props, JSI_methods, NULL, NULL );
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}
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JSI_Camera::Camera_Info::Camera_Info()
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{
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CMatrix3D orient;
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orient.SetXRotation( DEGTORAD( 30 ) );
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orient.RotateY( DEGTORAD( -45 ) );
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orient.Translate( 100, 150, -100 );
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Camera_Info( orient.GetTranslation(), orient.GetIn(), orient.GetUp() );
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}
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JSI_Camera::Camera_Info::Camera_Info( const CVector3D& _position )
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{
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Camera_Info();
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position = _position;
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}
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JSI_Camera::Camera_Info::Camera_Info( const CVector3D& _position, const CVector3D& _orientation )
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{
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Camera_Info( _position, _orientation, CVector3D( 0.0f, 1.0f, 0.0f ) );
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}
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JSI_Camera::Camera_Info::Camera_Info( const CVector3D& _position, const CVector3D& _orientation, const CVector3D& _up )
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{
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position = _position;
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orientation = _orientation;
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up = _up;
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copy = NULL;
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}
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JSI_Camera::Camera_Info::Camera_Info( CCamera* _copy )
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{
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copy = _copy;
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position = copy->m_Orientation.GetTranslation();
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orientation = copy->m_Orientation.GetIn();
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up = copy->m_Orientation.GetUp();
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}
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void JSI_Camera::Camera_Info::update()
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{
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if( copy )
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copy->LookAlong( position, orientation, up );
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}
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JSBool JSI_Camera::getCamera( JSContext* cx, JSObject* obj, jsval id, jsval* vp )
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{
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JSObject* camera = JS_NewObject( cx, &JSI_Camera::JSI_class, NULL, NULL );
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JS_SetPrivate( cx, camera, new Camera_Info( g_Game->GetView()->GetCamera() ) );
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*vp = OBJECT_TO_JSVAL( camera );
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return( JS_TRUE );
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}
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JSBool JSI_Camera::setCamera( JSContext* cx, JSObject* obj, jsval id, jsval* vp )
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{
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JSObject* camera = JSVAL_TO_OBJECT( *vp );
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Camera_Info* cameraInfo;
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if( !JSVAL_IS_OBJECT( *vp ) || !( cameraInfo = (Camera_Info*)JS_GetInstancePrivate( cx, camera, &JSI_Camera::JSI_class, NULL ) ) )
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{
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JS_ReportError( cx, "[Camera] Invalid object" );
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}
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else
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g_Game->GetView()->GetCamera()->LookAlong( cameraInfo->position, cameraInfo->orientation, cameraInfo->up );
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return( JS_TRUE );
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}
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JSBool JSI_Camera::getProperty( JSContext* cx, JSObject* obj, jsval id, jsval* vp )
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{
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if( !JSVAL_IS_INT( id ) )
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return( JS_TRUE );
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Camera_Info* cameraInfo = (Camera_Info*)JS_GetPrivate( cx, obj );
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if( !cameraInfo )
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{
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JS_ReportError( cx, "[Camera] Invalid Reference" );
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return( JS_TRUE );
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}
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CVector3D* d;
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switch( g_ScriptingHost.ValueToInt( id ) )
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{
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case vector_position: d = &cameraInfo->position; break;
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case vector_orientation: d = &cameraInfo->orientation; break;
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case vector_up: d = &cameraInfo->up; break;
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default: return( JS_FALSE );
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}
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JSObject* vector3d = JS_NewObject( g_ScriptingHost.getContext(), &JSI_Vector3D::JSI_class, NULL, NULL );
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JS_SetPrivate( g_ScriptingHost.getContext(), vector3d, new JSI_Vector3D::Vector3D_Info( d, cameraInfo, ( void( IBoundPropertyOwner::* )() )&Camera_Info::update ) );
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*vp = OBJECT_TO_JSVAL( vector3d );
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return( JS_TRUE );
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}
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JSBool JSI_Camera::setProperty( JSContext* cx, JSObject* obj, jsval id, jsval* vp )
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{
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if( !JSVAL_IS_INT( id ) )
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return( JS_TRUE );
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Camera_Info* cameraInfo = (Camera_Info*)JS_GetPrivate( cx, obj );
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if( !cameraInfo )
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{
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JS_ReportError( cx, "[Camera] Invalid reference" );
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return( JS_TRUE );
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}
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JSObject* vector3d = JSVAL_TO_OBJECT( *vp );
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JSI_Vector3D::Vector3D_Info* v = NULL;
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if( JSVAL_IS_OBJECT( *vp ) && ( v = (JSI_Vector3D::Vector3D_Info*)JS_GetInstancePrivate( g_ScriptingHost.getContext(), vector3d, &JSI_Vector3D::JSI_class, NULL ) ) )
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{
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switch( g_ScriptingHost.ValueToInt( id ) )
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{
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case vector_position: cameraInfo->position = *( v->vector ); break;
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case vector_orientation: cameraInfo->orientation = *( v->vector ); break;
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case vector_up: cameraInfo->up = *( v->vector ); break;
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}
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cameraInfo->update();
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}
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return( JS_TRUE );
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}
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JSBool JSI_Camera::lookAt( JSContext* cx, JSObject* obj, unsigned int argc, jsval* argv, jsval* rval )
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{
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assert( argc >= 2 );
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JSI_Vector3D::Vector3D_Info* v = NULL;
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Camera_Info* cameraInfo = (Camera_Info*)JS_GetPrivate( cx, obj );
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#define GETVECTOR( jv ) ( ( JSVAL_IS_OBJECT( jv ) && ( v = (JSI_Vector3D::Vector3D_Info*)JS_GetInstancePrivate( g_ScriptingHost.getContext(), JSVAL_TO_OBJECT( jv ), &JSI_Vector3D::JSI_class, NULL ) ) ) ? *(v->vector) : CVector3D() )
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if( argc <= 3 )
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{
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cameraInfo->position = GETVECTOR( argv[0] );
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cameraInfo->orientation = ( GETVECTOR( argv[1] ) - GETVECTOR( argv[0] ) );
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cameraInfo->orientation.Normalize();
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}
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else
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{
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JS_ReportError( cx, "[Camera] Too many arguments to lookAt" );
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*rval = JSVAL_FALSE;
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return( JS_TRUE );
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}
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if( argc == 2 )
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{
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cameraInfo->up = CVector3D( 0.0f, 1.0f, 0.0f );
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}
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else if( argc == 3 )
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{
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cameraInfo->up = GETVECTOR( argv[2] );
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}
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#undef GETVECTOR
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cameraInfo->update();
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*rval = JSVAL_TRUE;
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return( JS_TRUE );
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}
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JSBool JSI_Camera::getFocus( JSContext* cx, JSObject* obj, uintN argc, jsval* argv, jsval* rval )
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{
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// Largely copied from the equivalent method in CCamera
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Camera_Info* cameraInfo = (Camera_Info*)JS_GetPrivate( cx, obj );
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CHFTracer tracer( g_Game->GetWorld()->GetTerrain() ); int x, z;
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CVector3D currentTarget;
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if( !tracer.RayIntersect( cameraInfo->position, cameraInfo->orientation, x, z, currentTarget ) )
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{
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// Off the edge of the world?
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// Work out where it /would/ hit, if the map were extended out to infinity with average height.
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currentTarget = cameraInfo->position + cameraInfo->orientation * ( ( 50.0f - cameraInfo->position.Y ) / cameraInfo->orientation.Y );
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}
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JSObject* vector3d = JS_NewObject( g_ScriptingHost.getContext(), &JSI_Vector3D::JSI_class, NULL, NULL );
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JS_SetPrivate( g_ScriptingHost.getContext(), vector3d, new JSI_Vector3D::Vector3D_Info( currentTarget ) );
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*rval = OBJECT_TO_JSVAL( vector3d );
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return( JS_TRUE );
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}
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JSBool JSI_Camera::construct( JSContext* cx, JSObject* obj, uintN argc, jsval* argv, jsval* rval )
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{
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JSI_Vector3D::Vector3D_Info* v = NULL;
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JSObject* camera = JS_NewObject( cx, &JSI_Camera::JSI_class, NULL, NULL );
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#define GETVECTOR( jv ) ( ( JSVAL_IS_OBJECT( jv ) && ( v = (JSI_Vector3D::Vector3D_Info*)JS_GetInstancePrivate( g_ScriptingHost.getContext(), JSVAL_TO_OBJECT( jv ), &JSI_Vector3D::JSI_class, NULL ) ) ) ? *(v->vector) : CVector3D() )
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if( argc == 0 )
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{
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JS_SetPrivate( cx, camera, new Camera_Info() );
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}
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else if( argc == 1 )
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{
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JS_SetPrivate( cx, camera, new Camera_Info( GETVECTOR( argv[0] ) ) );
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}
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else if( argc == 2 )
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{
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JS_SetPrivate( cx, camera, new Camera_Info( GETVECTOR( argv[0] ), GETVECTOR( argv[1] ) ) );
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}
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else if( argc == 3 )
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{
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JS_SetPrivate( cx, camera, new Camera_Info( GETVECTOR( argv[0] ), GETVECTOR( argv[1] ), GETVECTOR( argv[2] ) ) );
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}
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else
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{
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JS_ReportError( cx, "[Camera] Too many arguments to constructor" );
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*rval = JSVAL_NULL;
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return( JS_TRUE );
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}
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#undef GET_VECTOR
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*rval = OBJECT_TO_JSVAL( camera );
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return( JS_TRUE );
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}
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void JSI_Camera::finalize( JSContext* cx, JSObject* obj )
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{
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delete( (Camera_Info*)JS_GetPrivate( cx, obj ) );
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}
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