/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * 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.
 *
 * The Original Code is Copyright (C) 2009 Blender Foundation.
 * All rights reserved.
 *
 *
 * Contributor(s): Blender Foundation
 *
 * ***** END GPL LICENSE BLOCK *****
 */

/** \file blender/makesrna/intern/rna_object_api.c
 *  \ingroup RNA
 */


#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>

#include "BLI_utildefines.h"
#include "BLI_kdopbvh.h"

#include "RNA_define.h"

#include "DNA_constraint_types.h"
#include "DNA_layer_types.h"
#include "DNA_modifier_types.h"
#include "DNA_object_types.h"

#include "BKE_layer.h"

#include "DEG_depsgraph.h"

#include "rna_internal.h"  /* own include */

static const EnumPropertyItem space_items[] = {
	{CONSTRAINT_SPACE_WORLD,    "WORLD", 0, "World Space",
	                            "The most gobal space in Blender"},
	{CONSTRAINT_SPACE_POSE,     "POSE", 0, "Pose Space",
	                            "The pose space of a bone (its armature's object space)"},
	{CONSTRAINT_SPACE_PARLOCAL, "LOCAL_WITH_PARENT", 0, "Local With Parent",
	                            "The local space of a bone's parent bone"},
	{CONSTRAINT_SPACE_LOCAL,    "LOCAL", 0, "Local Space",
	                            "The local space of an object/bone"},
	{0, NULL, 0, NULL, NULL}
};

#ifdef RNA_RUNTIME

#include "BLI_math.h"

#include "BKE_anim.h"
#include "BKE_bvhutils.h"
#include "BKE_constraint.h"
#include "BKE_context.h"
#include "BKE_customdata.h"
#include "BKE_font.h"
#include "BKE_global.h"
#include "BKE_main.h"
#include "BKE_mesh.h"
#include "BKE_mball.h"
#include "BKE_modifier.h"
#include "BKE_object.h"
#include "BKE_report.h"

#include "ED_object.h"

#include "DNA_curve_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_scene_types.h"
#include "DNA_view3d_types.h"

#include "DEG_depsgraph_query.h"

#include "MEM_guardedalloc.h"

static void rna_Object_select_set(Object *ob, bContext *C, ReportList *reports, int action)
{
	ViewLayer *view_layer = CTX_data_view_layer(C);
	Base *base = BKE_view_layer_base_find(view_layer, ob);

	if (!base) {
		BKE_reportf(reports, RPT_ERROR, "Object '%s' not in View Layer '%s'!", ob->id.name + 2, view_layer->name);
		return;
	}

	if (action == 2) { /* TOGGLE */
		if ((base->flag & BASE_SELECTED) != 0) {
			action = 1; /* DESELECT */
		}
		else {
			action = 0; /* SELECT */
		}
	}

	switch (action) {
		case 1: /* DESELECT */
			base->flag &= ~BASE_SELECTED;
			break;
		case 0: /* SELECT */
		default:
			BKE_view_layer_base_select(view_layer, base);
			break;
	}
}

static int rna_Object_select_get(Object *ob, bContext *C, ReportList *reports)
{
	ViewLayer *view_layer = CTX_data_view_layer(C);
	Base *base = BKE_view_layer_base_find(view_layer, ob);

	if (!base) {
		BKE_reportf(reports, RPT_ERROR, "Object '%s' not in Render Layer '%s'!", ob->id.name + 2, view_layer->name);
		return -1;
	}

	return ((base->flag & BASE_SELECTED) != 0) ? 1 : 0;
}

static int rna_Object_visible_get(Object *ob, bContext *C, ReportList *reports)
{
	ViewLayer *view_layer = CTX_data_view_layer(C);
	Base *base = BKE_view_layer_base_find(view_layer, ob);

	if (!base) {
		BKE_reportf(reports, RPT_ERROR, "Object '%s' not in Render Layer '%s'!", ob->id.name + 2, view_layer->name);
		return -1;
	}

	return ((base->flag & BASE_VISIBLE) != 0) ? 1 : 0;
}

/* Convert a given matrix from a space to another (using the object and/or a bone as reference). */
static void rna_Object_mat_convert_space(Object *ob, ReportList *reports, bPoseChannel *pchan,
                                        float *mat, float *mat_ret, int from, int to)
{
	copy_m4_m4((float (*)[4])mat_ret, (float (*)[4])mat);

	/* Error in case of invalid from/to values when pchan is NULL */
	if (pchan == NULL) {
		if (ELEM(from, CONSTRAINT_SPACE_POSE, CONSTRAINT_SPACE_PARLOCAL)) {
			const char *identifier = NULL;
			RNA_enum_identifier(space_items, from, &identifier);
			BKE_reportf(reports, RPT_ERROR, "'from_space' '%s' is invalid when no pose bone is given!", identifier);
			return;
		}
		if (ELEM(to, CONSTRAINT_SPACE_POSE, CONSTRAINT_SPACE_PARLOCAL)) {
			const char *identifier = NULL;
			RNA_enum_identifier(space_items, to, &identifier);
			BKE_reportf(reports, RPT_ERROR, "'to_space' '%s' is invalid when no pose bone is given!", identifier);
			return;
		}
	}

	BKE_constraint_mat_convertspace(ob, pchan, (float (*)[4])mat_ret, from, to, false);
}

static void rna_Object_calc_matrix_camera(
        Object *ob, Depsgraph *depsgraph, float mat_ret[16], int width, int height, float scalex, float scaley)
{
	const Object *ob_eval = DEG_get_evaluated_object(depsgraph, ob);
	CameraParams params;

	/* setup parameters */
	BKE_camera_params_init(&params);
	BKE_camera_params_from_object(&params, ob_eval);

	/* compute matrix, viewplane, .. */
	BKE_camera_params_compute_viewplane(&params, width, height, scalex, scaley);
	BKE_camera_params_compute_matrix(&params);

	copy_m4_m4((float (*)[4])mat_ret, params.winmat);
}

static void rna_Object_camera_fit_coords(
        Object *ob, Depsgraph *depsgraph, int num_cos, float *cos, float co_ret[3], float *scale_ret)
{
	BKE_camera_view_frame_fit_to_coords(depsgraph, (const float (*)[3])cos, num_cos / 3, ob, co_ret, scale_ret);
}

/* copied from Mesh_getFromObject and adapted to RNA interface */
/* settings: 0 - preview, 1 - render */
static Mesh *rna_Object_to_mesh(
        Object *ob, bContext *C, ReportList *reports, Depsgraph *depsgraph,
        int apply_modifiers, int calc_tessface, int calc_undeformed)
{
	Main *bmain = CTX_data_main(C);

	return rna_Main_meshes_new_from_object(bmain, reports, depsgraph, ob, apply_modifiers, calc_tessface, calc_undeformed);
}

static PointerRNA rna_Object_shape_key_add(Object *ob, bContext *C, ReportList *reports,
                                           const char *name, int from_mix)
{
	Main *bmain = CTX_data_main(C);
	KeyBlock *kb = NULL;

	if ((kb = BKE_object_shapekey_insert(bmain, ob, name, from_mix))) {
		PointerRNA keyptr;

		RNA_pointer_create((ID *)ob->data, &RNA_ShapeKey, kb, &keyptr);
		WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);

		return keyptr;
	}
	else {
		BKE_reportf(reports, RPT_ERROR, "Object '%s' does not support shapes", ob->id.name + 2);
		return PointerRNA_NULL;
	}
}

static void rna_Object_shape_key_remove(
        Object *ob, Main *bmain, ReportList *reports,
        PointerRNA *kb_ptr)
{
	KeyBlock *kb = kb_ptr->data;
	Key *key = BKE_key_from_object(ob);

	if ((key == NULL) || BLI_findindex(&key->block, kb) == -1) {
		BKE_reportf(reports, RPT_ERROR, "ShapeKey not found");
		return;
	}

	if (!BKE_object_shapekey_remove(bmain, ob, kb)) {
		BKE_reportf(reports, RPT_ERROR, "Could not remove ShapeKey");
		return;
	}

	DEG_id_tag_update(&ob->id, OB_RECALC_DATA);
	WM_main_add_notifier(NC_OBJECT | ND_DRAW, ob);

	RNA_POINTER_INVALIDATE(kb_ptr);
}

#if 0
static void rna_Mesh_assign_verts_to_group(Object *ob, bDeformGroup *group, int *indices, int totindex,
                                           float weight, int assignmode)
{
	if (ob->type != OB_MESH) {
		BKE_report(reports, RPT_ERROR, "Object should be of mesh type");
		return;
	}

	Mesh *me = (Mesh *)ob->data;
	int group_index = BLI_findlink(&ob->defbase, group);
	if (group_index == -1) {
		BKE_report(reports, RPT_ERROR, "No vertex groups assigned to mesh");
		return;
	}

	if (assignmode != WEIGHT_REPLACE && assignmode != WEIGHT_ADD && assignmode != WEIGHT_SUBTRACT) {
		BKE_report(reports, RPT_ERROR, "Bad assignment mode");
		return;
	}

	/* makes a set of dVerts corresponding to the mVerts */
	if (!me->dvert)
		create_dverts(&me->id);

	/* loop list adding verts to group  */
	for (i = 0; i < totindex; i++) {
		if (i < 0 || i >= me->totvert) {
			BKE_report(reports, RPT_ERROR, "Bad vertex index in list");
			return;
		}

		add_vert_defnr(ob, group_index, i, weight, assignmode);
	}
}
#endif

/* don't call inside a loop */
static int mesh_looptri_to_poly_index(Mesh *me_eval, const MLoopTri *lt)
{
	const int *index_mp_to_orig = CustomData_get_layer(&me_eval->pdata, CD_ORIGINDEX);
	return index_mp_to_orig ? index_mp_to_orig[lt->poly] : lt->poly;
}

static void rna_Object_ray_cast(
        Object *ob, ReportList *reports,
        float origin[3], float direction[3], float distance,
        int *r_success, float r_location[3], float r_normal[3], int *r_index)
{
	bool success = false;

	if (ob->runtime.mesh_eval == NULL) {
		BKE_reportf(reports, RPT_ERROR, "Object '%s' has no mesh data to be used for ray casting", ob->id.name + 2);
		return;
	}

	/* Test BoundBox first (efficiency) */
	BoundBox *bb = BKE_object_boundbox_get(ob);
	float distmin;
	if (!bb || (isect_ray_aabb_v3_simple(origin, direction, bb->vec[0], bb->vec[6], &distmin, NULL) && distmin <= distance)) {

		BVHTreeFromMesh treeData = {NULL};

		/* no need to managing allocation or freeing of the BVH data. this is generated and freed as needed */
		BKE_bvhtree_from_mesh_get(&treeData, ob->runtime.mesh_eval, BVHTREE_FROM_LOOPTRI, 4);

		/* may fail if the mesh has no faces, in that case the ray-cast misses */
		if (treeData.tree != NULL) {
			BVHTreeRayHit hit;

			hit.index = -1;
			hit.dist = distance;

			normalize_v3(direction);


			if (BLI_bvhtree_ray_cast(treeData.tree, origin, direction, 0.0f, &hit,
			                         treeData.raycast_callback, &treeData) != -1)
			{
				if (hit.dist <= distance) {
					*r_success = success = true;

					copy_v3_v3(r_location, hit.co);
					copy_v3_v3(r_normal, hit.no);
					*r_index = mesh_looptri_to_poly_index(ob->runtime.mesh_eval, &treeData.looptri[hit.index]);
				}
			}

			free_bvhtree_from_mesh(&treeData);
		}
	}
	if (success == false) {
		*r_success = false;

		zero_v3(r_location);
		zero_v3(r_normal);
		*r_index = -1;
	}
}

static void rna_Object_closest_point_on_mesh(
        Object *ob, ReportList *reports, float origin[3], float distance,
        int *r_success, float r_location[3], float r_normal[3], int *r_index)
{
	BVHTreeFromMesh treeData = {NULL};

	if (ob->runtime.mesh_eval == NULL) {
		BKE_reportf(reports, RPT_ERROR, "Object '%s' has no mesh data to be used for finding nearest point",
		            ob->id.name + 2);
		return;
	}

	/* no need to managing allocation or freeing of the BVH data. this is generated and freed as needed */
	BKE_bvhtree_from_mesh_get(&treeData, ob->runtime.mesh_eval, BVHTREE_FROM_LOOPTRI, 4);

	if (treeData.tree == NULL) {
		BKE_reportf(reports, RPT_ERROR, "Object '%s' could not create internal data for finding nearest point",
		            ob->id.name + 2);
		return;
	}
	else {
		BVHTreeNearest nearest;

		nearest.index = -1;
		nearest.dist_sq = distance * distance;

		if (BLI_bvhtree_find_nearest(treeData.tree, origin, &nearest, treeData.nearest_callback, &treeData) != -1) {
			*r_success = true;

			copy_v3_v3(r_location, nearest.co);
			copy_v3_v3(r_normal, nearest.no);
			*r_index = mesh_looptri_to_poly_index(ob->runtime.mesh_eval, &treeData.looptri[nearest.index]);

			goto finally;
		}
	}

	*r_success = false;

	zero_v3(r_location);
	zero_v3(r_normal);
	*r_index = -1;

finally:
	free_bvhtree_from_mesh(&treeData);
}

static int rna_Object_is_modified(Object *ob, Scene *scene, int settings)
{
	return BKE_object_is_modified(scene, ob) & settings;
}

static int rna_Object_is_deform_modified(Object *ob, Scene *scene, int settings)
{
	return BKE_object_is_deform_modified(scene, ob) & settings;
}

#ifndef NDEBUG

#include "BKE_mesh_runtime.h"

void rna_Object_me_eval_info(struct Object *ob, int type, char *result)
{
	Mesh *me_eval = NULL;
	char *ret = NULL;

	result[0] = '\0';

	switch (type) {
		case 0:
			if (ob->type == OB_MESH) {
				me_eval = ob->data;
			}
			break;
		case 1:
			me_eval = ob->runtime.mesh_deform_eval;
			break;
		case 2:
			me_eval = ob->runtime.mesh_eval;
			break;
	}

	if (me_eval) {
		ret = BKE_mesh_runtime_debug_info(me_eval);
		if (ret) {
			strcpy(result, ret);
			MEM_freeN(ret);
		}
	}
}
#endif /* NDEBUG */

static int rna_Object_update_from_editmode(Object *ob, Main *bmain)
{
	/* fail gracefully if we aren't in edit-mode. */
	return ED_object_editmode_load(bmain, ob);
}
#else /* RNA_RUNTIME */

void RNA_api_object(StructRNA *srna)
{
	FunctionRNA *func;
	PropertyRNA *parm;

	static const EnumPropertyItem mesh_type_items[] = {
		{eModifierMode_Realtime, "PREVIEW", 0, "Preview", "Apply modifier preview settings"},
		{eModifierMode_Render, "RENDER", 0, "Render", "Apply modifier render settings"},
		{0, NULL, 0, NULL, NULL}
	};

#ifndef NDEBUG
	static const EnumPropertyItem mesh_dm_info_items[] = {
		{0, "SOURCE", 0, "Source", "Source mesh"},
		{1, "DEFORM", 0, "Deform", "Objects deform mesh"},
		{2, "FINAL", 0, "Final", "Objects final mesh"},
		{0, NULL, 0, NULL, NULL}
	};
#endif

	static EnumPropertyItem object_select_items[] = {
	    {0, "SELECT", 0, "Select", "Select object from the active render layer"},
	    {1, "DESELECT", 0, "Deselect", "Deselect object from the active render layer"},
	    {2, "TOGGLE", 0, "Toggle", "Toggle object selection from the active render layer"},
	    {0, NULL, 0, NULL, NULL}
	};

	/* Special wrapper to access the base selection value */
	func = RNA_def_function(srna, "select_set", "rna_Object_select_set");
	RNA_def_function_ui_description(func, "Select the object (for the active render layer)");
	RNA_def_function_flag(func, FUNC_USE_CONTEXT | FUNC_USE_REPORTS);
	parm = RNA_def_enum(func, "action", object_select_items, 0, "Action", "Select mode");
	RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);

	func = RNA_def_function(srna, "select_get", "rna_Object_select_get");
	RNA_def_function_ui_description(func, "Get the object selection for the active render layer");
	RNA_def_function_flag(func, FUNC_USE_CONTEXT | FUNC_USE_REPORTS);
	parm = RNA_def_boolean(func, "result", 0, "", "Object selected");
	RNA_def_function_return(func, parm);

	func = RNA_def_function(srna, "visible_get", "rna_Object_visible_get");
	RNA_def_function_ui_description(func, "Get the object visibility for the active render layer");
	RNA_def_function_flag(func, FUNC_USE_CONTEXT | FUNC_USE_REPORTS);
	parm = RNA_def_boolean(func, "result", 0, "", "Object visible");
	RNA_def_function_return(func, parm);

	/* Matrix space conversion */
	func = RNA_def_function(srna, "convert_space", "rna_Object_mat_convert_space");
	RNA_def_function_ui_description(func, "Convert (transform) the given matrix from one space to another");
	RNA_def_function_flag(func, FUNC_USE_REPORTS);
	parm = RNA_def_pointer(func, "pose_bone", "PoseBone", "",
	                       "Bone to use to define spaces (may be None, in which case only the two 'WORLD' and "
	                       "'LOCAL' spaces are usable)");
	parm = RNA_def_property(func, "matrix", PROP_FLOAT, PROP_MATRIX);
	RNA_def_property_multi_array(parm, 2, rna_matrix_dimsize_4x4);
	RNA_def_property_ui_text(parm, "", "The matrix to transform");
	parm = RNA_def_property(func, "matrix_return", PROP_FLOAT, PROP_MATRIX);
	RNA_def_property_multi_array(parm, 2, rna_matrix_dimsize_4x4);
	RNA_def_property_ui_text(parm, "", "The transformed matrix");
	RNA_def_function_output(func, parm);
	parm = RNA_def_enum(func, "from_space", space_items, CONSTRAINT_SPACE_WORLD, "",
	                    "The space in which 'matrix' is currently");
	parm = RNA_def_enum(func, "to_space", space_items, CONSTRAINT_SPACE_WORLD, "",
	                    "The space to which you want to transform 'matrix'");

	/* Camera-related operations */
	func = RNA_def_function(srna, "calc_matrix_camera", "rna_Object_calc_matrix_camera");
	RNA_def_function_ui_description(func, "Generate the camera projection matrix of this object "
	                                      "(mostly useful for Camera and Lamp types)");
	parm = RNA_def_pointer(func, "depsgraph", "Depsgraph", "",
	                       "Depsgraph to get evaluated data from");
	RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
	parm = RNA_def_property(func, "result", PROP_FLOAT, PROP_MATRIX);
	RNA_def_property_multi_array(parm, 2, rna_matrix_dimsize_4x4);
	RNA_def_property_ui_text(parm, "", "The camera projection matrix");
	RNA_def_function_output(func, parm);
	parm = RNA_def_int(func, "x", 1, 0, INT_MAX, "", "Width of the render area", 0, 10000);
	parm = RNA_def_int(func, "y", 1, 0, INT_MAX, "", "Height of the render area", 0, 10000);
	parm = RNA_def_float(func, "scale_x", 1.0f, 1.0e-6f, FLT_MAX, "", "Width scaling factor", 1.0e-2f, 100.0f);
	parm = RNA_def_float(func, "scale_y", 1.0f, 1.0e-6f, FLT_MAX, "", "height scaling factor", 1.0e-2f, 100.0f);

	func = RNA_def_function(srna, "camera_fit_coords", "rna_Object_camera_fit_coords");
	RNA_def_function_ui_description(func, "Compute the coordinate (and scale for ortho cameras) "
	                                      "given object should be to 'see' all given coordinates");
	parm = RNA_def_pointer(func, "depsgraph", "Depsgraph", "",
	                       "Depsgraph to get evaluated data from");
	RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
	parm = RNA_def_float_array(func, "coordinates", 1, NULL, -FLT_MAX, FLT_MAX, "", "Coordinates to fit in",
	                           -FLT_MAX, FLT_MAX);
	RNA_def_parameter_flags(parm, PROP_NEVER_NULL | PROP_DYNAMIC, PARM_REQUIRED);
	parm = RNA_def_property(func, "co_return", PROP_FLOAT, PROP_XYZ);
	RNA_def_property_array(parm, 3);
	RNA_def_property_ui_text(parm, "", "The location to aim to be able to see all given points");
	RNA_def_parameter_flags(parm, 0, PARM_OUTPUT);
	parm = RNA_def_property(func, "scale_return", PROP_FLOAT, PROP_NONE);
	RNA_def_property_ui_text(parm, "", "The ortho scale to aim to be able to see all given points (if relevant)");
	RNA_def_parameter_flags(parm, 0, PARM_OUTPUT);

	/* mesh */
	func = RNA_def_function(srna, "to_mesh", "rna_Object_to_mesh");
	RNA_def_function_ui_description(func, "Create a Mesh data-block with modifiers applied");
	RNA_def_function_flag(func, FUNC_USE_REPORTS | FUNC_USE_CONTEXT);
	parm = RNA_def_pointer(func, "depsgraph", "Depsgraph", "Dependency Graph", "Evaluated dependency graph within wich to evaluate modifiers");
	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED);
	parm = RNA_def_boolean(func, "apply_modifiers", 0, "", "Apply modifiers");
	RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
	RNA_def_boolean(func, "calc_tessface", true, "Calculate Tessellation", "Calculate tessellation faces");
	RNA_def_boolean(func, "calc_undeformed", false, "Calculate Undeformed", "Calculate undeformed vertex coordinates");
	parm = RNA_def_pointer(func, "mesh", "Mesh", "",
	                       "Mesh created from object, remove it if it is only used for export");
	RNA_def_function_return(func, parm);

	/* Armature */
	func = RNA_def_function(srna, "find_armature", "modifiers_isDeformedByArmature");
	RNA_def_function_ui_description(func, "Find armature influencing this object as a parent or via a modifier");
	parm = RNA_def_pointer(func, "ob_arm", "Object", "", "Armature object influencing this object or NULL");
	RNA_def_function_return(func, parm);

	/* Shape key */
	func = RNA_def_function(srna, "shape_key_add", "rna_Object_shape_key_add");
	RNA_def_function_ui_description(func, "Add shape key to this object");
	RNA_def_function_flag(func, FUNC_USE_CONTEXT | FUNC_USE_REPORTS);
	RNA_def_string(func, "name", "Key", 0, "", "Unique name for the new keyblock"); /* optional */
	RNA_def_boolean(func, "from_mix", 1, "", "Create new shape from existing mix of shapes");
	parm = RNA_def_pointer(func, "key", "ShapeKey", "", "New shape keyblock");
	RNA_def_parameter_flags(parm, 0, PARM_RNAPTR);
	RNA_def_function_return(func, parm);

	func = RNA_def_function(srna, "shape_key_remove", "rna_Object_shape_key_remove");
	RNA_def_function_ui_description(func, "Remove a Shape Key from this object");
	RNA_def_function_flag(func, FUNC_USE_MAIN | FUNC_USE_REPORTS);
	parm = RNA_def_pointer(func, "key", "ShapeKey", "", "Keyblock to be removed");
	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);

	/* Ray Cast */
	func = RNA_def_function(srna, "ray_cast", "rna_Object_ray_cast");
	RNA_def_function_ui_description(func, "Cast a ray onto in object space");
	RNA_def_function_flag(func, FUNC_USE_REPORTS);

	/* ray start and end */
	parm = RNA_def_float_vector(func, "origin", 3, NULL, -FLT_MAX, FLT_MAX, "", "", -1e4, 1e4);
	RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
	parm = RNA_def_float_vector(func, "direction", 3, NULL, -FLT_MAX, FLT_MAX, "", "", -1e4, 1e4);
	RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
	RNA_def_float(func, "distance", BVH_RAYCAST_DIST_MAX, 0.0, BVH_RAYCAST_DIST_MAX,
	              "", "Maximum distance", 0.0, BVH_RAYCAST_DIST_MAX);

	/* return location and normal */
	parm = RNA_def_boolean(func, "result", 0, "", "");
	RNA_def_function_output(func, parm);
	parm = RNA_def_float_vector(func, "location", 3, NULL, -FLT_MAX, FLT_MAX, "Location",
	                            "The hit location of this ray cast", -1e4, 1e4);
	RNA_def_parameter_flags(parm, PROP_THICK_WRAP, 0);
	RNA_def_function_output(func, parm);
	parm = RNA_def_float_vector(func, "normal", 3, NULL, -FLT_MAX, FLT_MAX, "Normal",
	                            "The face normal at the ray cast hit location", -1e4, 1e4);
	RNA_def_parameter_flags(parm, PROP_THICK_WRAP, 0);
	RNA_def_function_output(func, parm);
	parm = RNA_def_int(func, "index", 0, 0, 0, "", "The face index, -1 when original data isn't available", 0, 0);
	RNA_def_function_output(func, parm);

	/* Nearest Point */
	func = RNA_def_function(srna, "closest_point_on_mesh", "rna_Object_closest_point_on_mesh");
	RNA_def_function_ui_description(func, "Find the nearest point in object space");
	RNA_def_function_flag(func, FUNC_USE_REPORTS);

	/* location of point for test and max distance */
	parm = RNA_def_float_vector(func, "origin", 3, NULL, -FLT_MAX, FLT_MAX, "", "", -1e4, 1e4);
	RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
	/* default is sqrt(FLT_MAX) */
	RNA_def_float(func, "distance", 1.844674352395373e+19, 0.0, FLT_MAX, "", "Maximum distance", 0.0, FLT_MAX);

	/* return location and normal */
	parm = RNA_def_boolean(func, "result", 0, "", "");
	RNA_def_function_output(func, parm);
	parm = RNA_def_float_vector(func, "location", 3, NULL, -FLT_MAX, FLT_MAX, "Location",
	                            "The location on the object closest to the point", -1e4, 1e4);
	RNA_def_parameter_flags(parm, PROP_THICK_WRAP, 0);
	RNA_def_function_output(func, parm);
	parm = RNA_def_float_vector(func, "normal", 3, NULL, -FLT_MAX, FLT_MAX, "Normal",
	                            "The face normal at the closest point", -1e4, 1e4);
	RNA_def_parameter_flags(parm, PROP_THICK_WRAP, 0);
	RNA_def_function_output(func, parm);

	parm = RNA_def_int(func, "index", 0, 0, 0, "", "The face index, -1 when original data isn't available", 0, 0);
	RNA_def_function_output(func, parm);

	/* View */

	/* utility function for checking if the object is modified */
	func = RNA_def_function(srna, "is_modified", "rna_Object_is_modified");
	RNA_def_function_ui_description(func, "Determine if this object is modified from the base mesh data");
	parm = RNA_def_pointer(func, "scene", "Scene", "", "");
	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED);
	parm = RNA_def_enum(func, "settings", mesh_type_items, 0, "", "Modifier settings to apply");
	RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
	parm = RNA_def_boolean(func, "result", 0, "", "Object visibility");
	RNA_def_function_return(func, parm);

	func = RNA_def_function(srna, "is_deform_modified", "rna_Object_is_deform_modified");
	RNA_def_function_ui_description(func, "Determine if this object is modified by a deformation from the base mesh data");
	parm = RNA_def_pointer(func, "scene", "Scene", "", "");
	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED);
	parm = RNA_def_enum(func, "settings", mesh_type_items, 0, "", "Modifier settings to apply");
	RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
	parm = RNA_def_boolean(func, "result", 0, "", "Object visibility");
	RNA_def_function_return(func, parm);

#ifndef NDEBUG
	/* mesh */
	func = RNA_def_function(srna, "dm_info", "rna_Object_me_eval_info");
	RNA_def_function_ui_description(func, "Returns a string for derived mesh data");

	parm = RNA_def_enum(func, "type", mesh_dm_info_items, 0, "", "Modifier settings to apply");
	RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
	/* weak!, no way to return dynamic string type */
	parm = RNA_def_string(func, "result", NULL, 16384, "result", "");
	RNA_def_parameter_flags(parm, PROP_THICK_WRAP, 0); /* needed for string return value */
	RNA_def_function_output(func, parm);
#endif /* NDEBUG */

	func = RNA_def_function(srna, "update_from_editmode", "rna_Object_update_from_editmode");
	RNA_def_function_ui_description(func, "Load the objects edit-mode data into the object data");
	RNA_def_function_flag(func, FUNC_USE_MAIN);
	parm = RNA_def_boolean(func, "result", 0, "", "Success");
	RNA_def_function_return(func, parm);

	func = RNA_def_function(srna, "cache_release", "BKE_object_free_caches");
	RNA_def_function_ui_description(func, "Release memory used by caches associated with this object. Intended to be used by render engines only");
}

#endif /* RNA_RUNTIME */