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* clean up CLightEnv a bit
* add CLightEnv::m_TerrainShadowTransparency * shadows will let a fraction of diffuse light through * added JS LightEnv objects, so the lighting environment can be changed from the console * new element TerrainShadowTransparency supported in the scenario .xml format, changed cantabrian_generated with an example This was SVN commit r3513.
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prefect
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/**
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* =========================================================================
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* File : JSInterface_LightEnv.cpp
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* Project : Pyrogenesis
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* Description : Provide the LightEnv object type for JavaScript
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*
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* @author Nicolai Hähnle <nicolai@wildfiregames.com>
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* =========================================================================
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*/
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#include "precompiled.h"
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#include "maths/scripting/JSInterface_Vector3D.h"
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#include "graphics/scripting/JSInterface_LightEnv.h"
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#include "graphics/LightEnv.h"
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#include "ps/World.h"
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#include "scripting/JSConversions.h"
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namespace JSI_LightEnv {
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namespace {
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extern JSClass JSI_class;
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/**
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* This enumeration is used to index properties with the JavaScript implementation.
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*/
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enum
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{
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lightenv_elevation,
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lightenv_rotation,
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lightenv_terrainShadowTransparency,
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lightenv_sun,
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lightenv_terrainAmbient,
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lightenv_unitsAmbient
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};
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///////////////////////////////////////////////////////////////////////////////////////////////
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// LightEnv_Info, the private structure that holds data for individual LightEnv objects
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struct LightEnv_Info : public IPropertyOwner
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{
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CLightEnv* m_Data;
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bool m_EngineOwned;
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// Create a new LightEnv that will only be used by JavaScript
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LightEnv_Info()
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{
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m_Data = new CLightEnv;
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m_EngineOwned = false;
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}
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// Use the given CLightEnv from the engine. The caller must guarantee that
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// the copy object will not be deleted.
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LightEnv_Info(CLightEnv* copy)
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{
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m_Data = copy;
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m_EngineOwned = true;
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}
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~LightEnv_Info()
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{
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if (!m_EngineOwned)
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delete m_Data;
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}
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};
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///////////////////////////////////////////////////////////////////////////////////////////////
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// Construction and finalization of LightEnvs
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/**
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* construct: the LightEnv constructor has been called from JavaScript, so create a new
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* LightEnv object
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*/
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JSBool construct(JSContext* cx, JSObject* UNUSED(obj), uintN argc, jsval* UNUSED(argv), jsval* rval)
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{
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JSObject* lightenv = JS_NewObject(cx, &JSI_class, NULL, NULL);
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if(argc == 0)
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{
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JS_SetPrivate(cx, lightenv, new LightEnv_Info);
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}
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else
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{
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JS_ReportError(cx, "[LightEnv] 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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*rval = OBJECT_TO_JSVAL(lightenv);
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return JS_TRUE;
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}
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/**
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* finalize: callback from the JS engine to indicate we should free our private data
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*/
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void finalize(JSContext* cx, JSObject* obj)
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{
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delete (LightEnv_Info*)JS_GetPrivate(cx, obj);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////
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// Accessing properties of a LightEnv object
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// Can't use ToJSVal here because we need live updates from the vectors
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JSBool getVectorProperty(JSContext* cx, LightEnv_Info* lightenvInfo, CVector3D* vec, jsval* vp)
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{
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JSObject* vector3d = JS_NewObject(cx, &JSI_Vector3D::JSI_class, NULL, NULL);
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JS_SetPrivate(cx, vector3d, new JSI_Vector3D::Vector3D_Info(vec, lightenvInfo));
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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 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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LightEnv_Info* lightenvInfo = (LightEnv_Info*)JS_GetPrivate(cx, obj);
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if (!lightenvInfo)
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{
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JS_ReportError(cx, "[LightEnv] Invalid Reference");
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return JS_TRUE;
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}
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CLightEnv* lightenv = lightenvInfo->m_Data;
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switch(ToPrimitive<int>(id)) {
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case lightenv_elevation: *vp = ToJSVal(lightenv->GetElevation()); break;
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case lightenv_rotation: *vp = ToJSVal(lightenv->GetRotation()); break;
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case lightenv_terrainShadowTransparency: *vp = ToJSVal(lightenv->GetTerrainShadowTransparency()); break;
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case lightenv_sun: return getVectorProperty(cx, lightenvInfo, &lightenv->m_SunColor, vp);
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case lightenv_terrainAmbient: return getVectorProperty(cx, lightenvInfo, &lightenv->m_TerrainAmbientColor, vp);
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case lightenv_unitsAmbient: return getVectorProperty(cx, lightenvInfo, &lightenv->m_UnitsAmbientColor, vp);
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default: break;
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}
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return JS_TRUE;
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}
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JSBool 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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LightEnv_Info* lightenvInfo = (LightEnv_Info*)JS_GetPrivate(cx, obj);
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if (!lightenvInfo)
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{
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JS_ReportError(cx, "[LightEnv] Invalid reference");
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return JS_TRUE;
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}
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CLightEnv* lightenv = lightenvInfo->m_Data;
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switch(ToPrimitive<int>(id)) {
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case lightenv_elevation: lightenv->SetElevation(ToPrimitive<float>(*vp)); break;
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case lightenv_rotation: lightenv->SetRotation(ToPrimitive<float>(*vp)); break;
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case lightenv_terrainShadowTransparency: lightenv->SetTerrainShadowTransparency(ToPrimitive<float>(*vp)); break;
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case lightenv_sun: lightenv->m_SunColor = ToPrimitive<CVector3D>(*vp); break;
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case lightenv_terrainAmbient: lightenv->m_TerrainAmbientColor = ToPrimitive<CVector3D>(*vp); break;
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case lightenv_unitsAmbient: lightenv->m_UnitsAmbientColor = ToPrimitive<CVector3D>(*vp); break;
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default: break;
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}
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return JS_TRUE;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////
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// Registration of LightEnv class with JavaScript
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JSClass JSI_class = {
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"LightEnv", JSCLASS_HAS_PRIVATE,
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JS_PropertyStub, JS_PropertyStub,
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getProperty, setProperty,
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JS_EnumerateStub, JS_ResolveStub,
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JS_ConvertStub, finalize,
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NULL, NULL, NULL, NULL
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};
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JSPropertySpec JSI_props[] =
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{
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{ "elevation", lightenv_elevation, JSPROP_ENUMERATE },
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{ "rotation", lightenv_rotation, JSPROP_ENUMERATE },
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{ "terrainShadowTransparency", lightenv_terrainShadowTransparency, JSPROP_ENUMERATE },
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{ "sun", lightenv_sun, JSPROP_ENUMERATE },
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{ "terrainAmbient", lightenv_terrainAmbient, JSPROP_ENUMERATE },
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{ "unitsAmbient", lightenv_unitsAmbient, JSPROP_ENUMERATE },
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{ 0 },
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};
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JSFunctionSpec JSI_methods[] =
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{
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{ 0 }
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};
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}; // anonymous namespace
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/**
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* init: called by GameSetup to register the LightEnv class with the JS engine.
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*/
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void init()
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{
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g_ScriptingHost.DefineCustomObjectType( &JSI_class, construct, 0, JSI_props, JSI_methods, NULL, NULL );
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}
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///////////////////////////////////////////////////////////////////////////////////////////////
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// Accessing the global lightenv
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JSBool getLightEnv(JSContext* cx, JSObject* UNUSED(obj), jsval UNUSED(id), jsval* vp)
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{
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JSObject* lightenv = JS_NewObject(cx, &JSI_class, NULL, NULL);
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JS_SetPrivate(cx, lightenv, new LightEnv_Info(&g_LightEnv));
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*vp = OBJECT_TO_JSVAL(lightenv);
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return JS_TRUE;
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}
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JSBool setLightEnv(JSContext* cx, JSObject* UNUSED(obj), jsval UNUSED(id), jsval* vp)
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{
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JSObject* lightenv = JSVAL_TO_OBJECT(*vp);
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LightEnv_Info* lightenvInfo;
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if (!JSVAL_IS_OBJECT(*vp) || NULL == (lightenvInfo = (LightEnv_Info*)JS_GetInstancePrivate(cx, lightenv, &JSI_class, NULL)))
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{
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JS_ReportError( cx, "[LightEnv] Invalid object" );
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}
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else
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{
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g_LightEnv = *lightenvInfo->m_Data;
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}
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return JS_TRUE;
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}
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}; // namespace JSI_LightEnv
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