GODOT IS OPEN SOURCE

1 files changed, 727 insertions, 0 deletions

diff --git a/scene/3d/camera.cpp b/scene/3d/camera.cpp
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+++ b/scene/3d/camera.cpp
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+/*************************************************************************/
+/*  camera.cpp                                                           */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#include "camera.h"
+
+#include "camera_matrix.h"
+#include "scene/resources/material.h"
+#include "scene/resources/surface_tool.h"
+
+
+void Camera::_update_audio_listener_state() {
+
+
+}
+
+void Camera::_request_camera_update() {
+
+	_update_camera();
+}
+
+void Camera::_update_camera_mode() {
+
+
+	force_change=true;
+	switch(mode) {
+		case PROJECTION_PERSPECTIVE: {
+
+
+			set_perspective(fov,near,far);
+
+		} break;
+		case PROJECTION_ORTHOGONAL: {
+			set_orthogonal(size,near,far);
+		} break;	
+	
+	}
+
+}
+
+bool Camera::_set(const StringName& p_name, const Variant& p_value) {
+
+	bool changed_all=false;
+	if (p_name=="projection") {
+
+		int proj = p_value;
+		if (proj==PROJECTION_PERSPECTIVE)
+			mode=PROJECTION_PERSPECTIVE;
+		if (proj==PROJECTION_ORTHOGONAL)
+			mode=PROJECTION_ORTHOGONAL;
+
+		changed_all=true;
+	} else if (p_name=="fov")
+		fov=p_value;
+	else if (p_name=="size")
+		size=p_value;
+	else if (p_name=="near")
+		near=p_value;
+	else if (p_name=="far")
+		far=p_value;														
+	else if (p_name=="vaspect")
+		set_use_vertical_aspect(p_value);
+	else if (p_name=="current") {
+		if (p_value.operator bool()) {
+			make_current();
+		} else {
+			clear_current();
+		}
+	} else if (p_name=="visible_layers") {
+		set_visible_layers(p_value);
+	} else if (p_name=="environment") {
+		set_environment(p_value);
+	} else
+		return false;
+		
+	_update_camera_mode();
+	if (changed_all)
+		_change_notify();
+	return true;
+
+}
+bool Camera::_get(const StringName& p_name,Variant &r_ret) const {
+
+	if (p_name=="projection") {
+		r_ret= mode;
+	} else if (p_name=="fov")
+		r_ret= fov;
+	else if (p_name=="size")
+		r_ret= size;
+	else if (p_name=="near")
+		r_ret= near;
+	else if (p_name=="far")
+		r_ret= far;
+	else if (p_name=="vaspect")
+		r_ret= vaspect;
+	else if (p_name=="current") {
+
+		if (is_inside_scene() && get_scene()->is_editor_hint()) {
+			r_ret=current;
+		} else {
+			r_ret=is_current();
+		}
+	} else if (p_name=="visible_layers") {
+		r_ret=get_visible_layers();
+	} else if (p_name=="environment") {
+		r_ret=get_environment();
+	} else
+		return false;
+
+	return true;
+}
+
+void Camera::_get_property_list( List<PropertyInfo> *p_list) const {
+
+	p_list->push_back( PropertyInfo( Variant::INT, "projection", PROPERTY_HINT_ENUM, "Perspective,Orthogonal") );
+	
+	switch(mode) {
+	
+		case PROJECTION_PERSPECTIVE: {
+		
+			p_list->push_back( PropertyInfo( Variant::REAL, "fov" , PROPERTY_HINT_RANGE, "1,89,0.1") );
+			
+		} break;
+		case PROJECTION_ORTHOGONAL: {
+		
+			p_list->push_back( PropertyInfo( Variant::REAL, "size" , PROPERTY_HINT_RANGE, "1,16384,0.01" ) );
+		} break;
+	
+	}
+	
+	p_list->push_back( PropertyInfo( Variant::REAL, "near" , PROPERTY_HINT_EXP_RANGE, "0.01,4096.0,0.01") );
+	p_list->push_back( PropertyInfo( Variant::REAL, "far" , PROPERTY_HINT_EXP_RANGE, "0.01,4096.0,0.01") );
+	p_list->push_back( PropertyInfo( Variant::BOOL, "vaspect") );
+	p_list->push_back( PropertyInfo( Variant::BOOL, "current" ) );
+	p_list->push_back( PropertyInfo( Variant::INT, "visible_layers",PROPERTY_HINT_ALL_FLAGS ) );
+	p_list->push_back( PropertyInfo( Variant::OBJECT, "environment",PROPERTY_HINT_RESOURCE_TYPE,"Environment" ) );
+
+}
+
+void Camera::_update_camera() {
+
+	Transform tr = get_camera_transform();
+	VisualServer::get_singleton()->camera_set_transform( camera, tr );
+
+// here goes listener stuff
+//	if (viewport_ptr && is_inside_scene() && is_current())
+//		viewport_ptr->_camera_transform_changed_notify();
+
+	if (is_inside_scene() && is_current()) {
+		if (viewport_ptr) {
+			viewport_ptr->_camera_transform_changed_notify();
+		}
+	}
+
+	if (is_current() && get_world().is_valid()) {
+		get_world()->_update_camera(this);
+	}
+
+
+}
+
+void Camera::_notification(int p_what) {
+
+	switch(p_what) {
+	
+		case NOTIFICATION_ENTER_WORLD: {
+
+			viewport_ptr=NULL;
+
+			{ //find viewport stuff
+				Node *parent=get_parent();
+
+				while(parent) {
+
+					Viewport* viewport = parent->cast_to<Viewport>();
+
+					if (viewport) {
+						viewport_ptr=viewport;
+						break;
+					}
+					parent=parent->get_parent();
+				}
+
+			}
+
+			if (viewport_ptr)
+				viewport_ptr->cameras.insert(this);
+			if (current)
+				make_current();
+
+		} break;			
+		case NOTIFICATION_TRANSFORM_CHANGED: {
+		
+			_request_camera_update();
+		} break;
+		case NOTIFICATION_EXIT_WORLD: {
+		
+			if (is_current()) {
+				clear_current();
+				current=true; //keep it true
+
+			} else {
+				current=false;
+			}
+			if (viewport_ptr)
+				viewport_ptr->cameras.erase(this);
+			viewport_ptr=NULL;
+
+		} break;
+		case NOTIFICATION_BECAME_CURRENT: {
+			if (get_world().is_valid()) {
+				get_world()->_register_camera(this);
+			}
+		} break;
+		case NOTIFICATION_LOST_CURRENT: {
+			if (get_world().is_valid()) {
+				get_world()->_remove_camera(this);
+			}
+		} break;
+
+	
+	}
+
+}
+
+
+Transform Camera::get_camera_transform() const {
+
+	return get_global_transform();
+}
+
+void Camera::set_perspective(float p_fovy_degrees, float p_z_near, float p_z_far) {
+
+	if (!force_change && fov==p_fovy_degrees && p_z_near==near && p_z_far==far && mode==PROJECTION_PERSPECTIVE)
+		return;
+
+	fov=p_fovy_degrees;
+	near=p_z_near;
+	far=p_z_far;
+	mode=PROJECTION_PERSPECTIVE;
+	
+	VisualServer::get_singleton()->camera_set_perspective(camera,fov,near,far);
+	update_gizmo();
+	force_change=false;
+}
+void Camera::set_orthogonal(float p_size, float p_z_near, float p_z_far) {
+
+	if (!force_change && size==p_size && p_z_near==near && p_z_far==far && mode==PROJECTION_ORTHOGONAL)
+		return;
+
+	size = p_size;
+	
+	near=p_z_near;
+	far=p_z_far;
+	mode=PROJECTION_ORTHOGONAL;
+	force_change=false;
+	
+	VisualServer::get_singleton()->camera_set_orthogonal(camera,size,near,far);
+	update_gizmo();
+}
+
+RID Camera::get_camera() const {
+
+	return camera;
+};
+
+void Camera::make_current() {
+
+	current=true;
+
+	if (!is_inside_scene())
+		return;
+
+	if (viewport_ptr) {
+		viewport_ptr->_set_camera(this);
+	}
+
+	//get_scene()->call_group(SceneMainLoop::GROUP_CALL_REALTIME,camera_group,"_camera_make_current",this);
+}
+
+void Camera::clear_current() {
+
+	current=false;
+	if (!is_inside_scene())
+		return;
+
+	if (viewport_ptr) {
+		if (viewport_ptr->get_camera()==this)
+			viewport_ptr->_set_camera(NULL);
+	}
+
+}
+
+bool Camera::is_current() const {
+
+	if (is_inside_scene()) {
+		if (viewport_ptr)
+			return viewport_ptr->get_camera()==this;
+	} else
+		return current;
+
+	return false;
+}
+
+
+bool Camera::_can_gizmo_scale() const {
+
+	return false;
+}
+
+
+RES Camera::_get_gizmo_geometry() const {
+
+
+	Ref<SurfaceTool> surface_tool( memnew( SurfaceTool ));
+
+	Ref<FixedMaterial> mat( memnew( FixedMaterial ));
+
+	mat->set_parameter( FixedMaterial::PARAM_DIFFUSE,Color(1.0,0.5,1.0,0.5) );
+	mat->set_line_width(4);
+	mat->set_flag(Material::FLAG_DOUBLE_SIDED,true);
+	mat->set_flag(Material::FLAG_UNSHADED,true);
+	mat->set_hint(Material::HINT_NO_DEPTH_DRAW,true);
+
+	surface_tool->begin(Mesh::PRIMITIVE_LINES);
+	surface_tool->set_material(mat);
+
+	switch(mode) {
+
+		case PROJECTION_PERSPECTIVE: {
+
+
+
+			Vector3 side=Vector3( Math::sin(Math::deg2rad(fov)), 0, -Math::cos(Math::deg2rad(fov)) );
+			Vector3 nside=side;
+			nside.x=-nside.x;
+			Vector3 up=Vector3(0,side.x,0);
+
+
+#define ADD_TRIANGLE( m_a, m_b, m_c)\
+{\
+	surface_tool->add_vertex(m_a);\
+	surface_tool->add_vertex(m_b);\
+	surface_tool->add_vertex(m_b);\
+	surface_tool->add_vertex(m_c);\
+	surface_tool->add_vertex(m_c);\
+	surface_tool->add_vertex(m_a);\
+}
+
+			ADD_TRIANGLE( Vector3(), side+up, side-up );
+			ADD_TRIANGLE( Vector3(), nside+up, nside-up );
+			ADD_TRIANGLE( Vector3(), side+up, nside+up );
+			ADD_TRIANGLE( Vector3(), side-up, nside-up );
+
+			side.x*=0.25;
+			nside.x*=0.25;
+			Vector3 tup( 0, up.y*3/2,side.z);
+			ADD_TRIANGLE( tup, side+up, nside+up );
+
+		} break;
+		case PROJECTION_ORTHOGONAL: {
+
+#define ADD_QUAD( m_a, m_b, m_c, m_d)\
+{\
+	surface_tool->add_vertex(m_a);\
+	surface_tool->add_vertex(m_b);\
+	surface_tool->add_vertex(m_b);\
+	surface_tool->add_vertex(m_c);\
+	surface_tool->add_vertex(m_c);\
+	surface_tool->add_vertex(m_d);\
+	surface_tool->add_vertex(m_d);\
+	surface_tool->add_vertex(m_a);\
+}
+
+			float hsize=size*0.5;
+			Vector3 right(hsize,0,0);
+			Vector3 up(0,hsize,0);
+			Vector3 back(0,0,-1.0);
+			Vector3 front(0,0,0);
+
+			ADD_QUAD( -up-right,-up+right,up+right,up-right);
+			ADD_QUAD( -up-right+back,-up+right+back,up+right+back,up-right+back);
+			ADD_QUAD( up+right,up+right+back,up-right+back,up-right);
+			ADD_QUAD( -up+right,-up+right+back,-up-right+back,-up-right);
+
+			right.x*=0.25;
+			Vector3 tup( 0, up.y*3/2,back.z );
+			ADD_TRIANGLE( tup, right+up+back, -right+up+back );
+
+		} break;
+
+	}
+
+	return surface_tool->commit();
+
+}
+
+Vector3 Camera::project_ray_normal(const Point2& p_pos) const {
+
+	Vector3 ray = project_local_ray_normal(p_pos);
+	return get_camera_transform().basis.xform(ray).normalized();
+};
+
+Vector3 Camera::project_local_ray_normal(const Point2& p_pos) const {
+
+	if (!is_inside_scene()) {
+		ERR_EXPLAIN("Camera is not inside scene.");
+		ERR_FAIL_COND_V(!is_inside_scene(),Vector3());
+	}
+
+	Size2 viewport_size = viewport_ptr->get_visible_rect().size;
+
+	Vector3 ray;
+
+	if (mode==PROJECTION_ORTHOGONAL) {
+
+		ray=Vector3(0,0,-1);
+	} else {
+		CameraMatrix cm;
+		cm.set_perspective(fov,viewport_size.get_aspect(),near,far,vaspect);
+		float screen_w,screen_h;
+		cm.get_viewport_size(screen_w,screen_h);
+		ray=Vector3( ((p_pos.x/viewport_size.width)*2.0-1.0)*screen_w, ((1.0-(p_pos.y/viewport_size.height))*2.0-1.0)*screen_h,-near).normalized();
+	}
+
+
+	return ray;
+};
+
+
+Vector3 Camera::project_ray_origin(const Point2& p_pos) const {
+
+	if (!is_inside_scene()) {
+		ERR_EXPLAIN("Camera is not inside scene.");
+		ERR_FAIL_COND_V(!is_inside_scene(),Vector3());
+	}
+
+	Size2 viewport_size = viewport_ptr->get_visible_rect().size;
+
+
+	ERR_FAIL_COND_V( viewport_size.y == 0, Vector3() );
+//	float aspect = viewport_size.x / viewport_size.y;
+
+	if (mode == PROJECTION_PERSPECTIVE) {
+
+		return get_camera_transform().origin;
+	} else {
+
+		Vector2 pos = p_pos / viewport_size;
+		float vsize,hsize;
+		if (vaspect) {
+			vsize = size/viewport_size.get_aspect();
+			hsize = size;
+		} else {
+			hsize = size*viewport_size.get_aspect();
+			vsize = size;
+
+		}
+
+		Vector3 ray;
+		ray.x = pos.x * (hsize) - hsize/2;
+		ray.y = (1.0 - pos.y) * (vsize) - vsize/2;
+		ray.z = -near;
+		ray = get_camera_transform().xform(ray);
+		return ray;
+	};
+};
+
+Point2 Camera::unproject_position(const Vector3& p_pos) const {
+
+	if (!is_inside_scene()) {
+		ERR_EXPLAIN("Camera is not inside scene.");
+		ERR_FAIL_COND_V(!is_inside_scene(),Vector2());
+	}
+
+	Size2 viewport_size = viewport_ptr->get_visible_rect().size;
+
+	CameraMatrix cm;
+
+
+	if (mode==PROJECTION_ORTHOGONAL)
+		cm.set_orthogonal(size,viewport_size.get_aspect(),near,far,vaspect);
+	else
+		cm.set_perspective(fov,viewport_size.get_aspect(),near,far,vaspect);
+
+	Plane p(get_camera_transform().xform_inv(p_pos),1.0);
+
+	p=cm.xform4(p);
+	p.normal/=p.d;
+
+
+	Point2 res;
+	res.x = (p.normal.x * 0.5 + 0.5)  * viewport_size.x;
+	res.y = (-p.normal.y * 0.5 + 0.5)  * viewport_size.y;
+
+	return res;
+
+}
+
+Vector3 Camera::project_position(const Point2& p_point) const {
+
+	if (!is_inside_scene()) {
+		ERR_EXPLAIN("Camera is not inside scene.");
+		ERR_FAIL_COND_V(!is_inside_scene(),Vector3());
+	}
+
+	Size2 viewport_size = viewport_ptr->get_visible_rect().size;
+
+	CameraMatrix cm;
+
+	if (mode==PROJECTION_ORTHOGONAL)
+		cm.set_orthogonal(size,viewport_size.get_aspect(),near,far,vaspect);
+	else
+		cm.set_perspective(fov,viewport_size.get_aspect(),near,far,vaspect);
+
+	Size2 vp_size;
+	cm.get_viewport_size(vp_size.x,vp_size.y);
+
+	Vector2 point;
+	point.x = (p_point.x/viewport_size.x) * 2.0 - 1.0;
+	point.y = (p_point.y/viewport_size.y) * 2.0 - 1.0;
+	point*=vp_size;
+
+	Vector3 p(point.x,point.y,-near);
+
+
+	return get_camera_transform().xform(p);
+}
+
+/*
+void Camera::_camera_make_current(Node *p_camera) {
+
+
+	if (p_camera==this) {
+		VisualServer::get_singleton()->viewport_attach_camera(viewport_id,camera);
+		active=true;
+	} else {
+		if (active && p_camera==NULL) {
+			//detech camera because no one else will claim it
+			VisualServer::get_singleton()->viewport_attach_camera(viewport_id,RID());
+		}
+		active=false;
+	}
+}
+*/
+
+void Camera::set_environment(const Ref<Environment>& p_environment) {
+
+	environment=p_environment;
+	if (environment.is_valid())
+		VS::get_singleton()->camera_set_environment(camera,environment->get_rid());
+	else
+		VS::get_singleton()->camera_set_environment(camera,RID());
+}
+
+Ref<Environment> Camera::get_environment() const {
+
+	return environment;
+}
+
+
+
+void Camera::_bind_methods() {
+
+	ObjectTypeDB::bind_method( _MD("project_ray_normal","screen_point"), &Camera::project_ray_normal);
+	ObjectTypeDB::bind_method( _MD("project_local_ray_normal","screen_point"), &Camera::project_local_ray_normal);
+	ObjectTypeDB::bind_method( _MD("project_ray_origin","screen_point"), &Camera::project_ray_origin);
+	ObjectTypeDB::bind_method( _MD("unproject_position","world_point"), &Camera::unproject_position);
+	ObjectTypeDB::bind_method( _MD("project_position","screen_point"), &Camera::project_position);
+	ObjectTypeDB::bind_method( _MD("set_perspective","fov","z_near","z_far"),&Camera::set_perspective );
+	ObjectTypeDB::bind_method( _MD("set_orthogonal","size","z_near","z_far"),&Camera::set_orthogonal );
+	ObjectTypeDB::bind_method( _MD("make_current"),&Camera::make_current );
+	ObjectTypeDB::bind_method( _MD("clear_current"),&Camera::clear_current );
+	ObjectTypeDB::bind_method( _MD("is_current"),&Camera::is_current );
+	ObjectTypeDB::bind_method( _MD("get_camera_transform"),&Camera::get_camera_transform );
+	ObjectTypeDB::bind_method( _MD("get_fov"),&Camera::get_fov );
+	ObjectTypeDB::bind_method( _MD("get_size"),&Camera::get_size );
+	ObjectTypeDB::bind_method( _MD("get_zfar"),&Camera::get_zfar );
+	ObjectTypeDB::bind_method( _MD("get_znear"),&Camera::get_znear );
+	ObjectTypeDB::bind_method( _MD("get_projection"),&Camera::get_projection );
+	ObjectTypeDB::bind_method( _MD("set_visible_layers","mask"),&Camera::set_visible_layers );
+	ObjectTypeDB::bind_method( _MD("get_visible_layers"),&Camera::get_visible_layers );
+	ObjectTypeDB::bind_method( _MD("look_at","target","up"),&Camera::look_at );
+	ObjectTypeDB::bind_method( _MD("look_at_from_pos","pos","target","up"),&Camera::look_at_from_pos );
+	ObjectTypeDB::bind_method(_MD("set_environment","env:Environment"),&Camera::set_environment);
+	ObjectTypeDB::bind_method(_MD("get_environment:Environment"),&Camera::get_environment);
+	ObjectTypeDB::bind_method(_MD("set_use_vertical_aspect","enable"),&Camera::set_use_vertical_aspect);
+	ObjectTypeDB::bind_method(_MD("is_using_vertical_aspect"),&Camera::is_using_vertical_aspect);
+	//ObjectTypeDB::bind_method( _MD("_camera_make_current"),&Camera::_camera_make_current );
+
+	BIND_CONSTANT( PROJECTION_PERSPECTIVE );
+	BIND_CONSTANT( PROJECTION_ORTHOGONAL );
+}
+
+float Camera::get_fov() const {
+
+	return fov;
+}
+
+float Camera::get_size() const {
+
+	return size;
+}
+
+float Camera::get_znear() const {
+
+	return near;
+}
+
+float Camera::get_zfar() const {
+
+	return far;
+}
+
+
+Camera::Projection Camera::get_projection() const {
+
+	return mode;
+}
+
+void Camera::set_visible_layers(uint32_t p_layers) {
+
+	layers=p_layers;
+	VisualServer::get_singleton()->camera_set_visible_layers(camera,layers);
+}
+
+uint32_t Camera::get_visible_layers() const{
+
+	return layers;
+}
+
+
+Vector<Plane> Camera::get_frustum() const {
+
+	ERR_FAIL_COND_V(!is_inside_world(),Vector<Plane>());
+
+	Size2 viewport_size = viewport_ptr->get_visible_rect().size;
+	CameraMatrix cm;
+	if (mode==PROJECTION_PERSPECTIVE)
+		cm.set_perspective(fov,viewport_size.get_aspect(),near,far,vaspect);
+	else
+		cm.set_orthogonal(size,viewport_size.get_aspect(),near,far,vaspect);
+
+	return cm.get_projection_planes(get_global_transform());
+
+}
+
+
+void Camera::set_use_vertical_aspect(bool p_enable) {
+
+	vaspect=p_enable;
+	VisualServer::get_singleton()->camera_set_use_vertical_aspect(camera,p_enable);
+}
+
+
+bool Camera::is_using_vertical_aspect() const{
+
+	return vaspect;
+}
+
+void Camera::look_at(const Vector3& p_target, const Vector3& p_up_normal) {
+
+	Transform lookat;
+	lookat.origin=get_global_transform().origin;
+	lookat=lookat.looking_at(p_target,p_up_normal);
+	set_global_transform(lookat);
+}
+
+void Camera::look_at_from_pos(const Vector3& p_pos,const Vector3& p_target, const Vector3& p_up_normal) {
+
+	Transform lookat;
+	lookat.origin=p_pos;
+	lookat=lookat.looking_at(p_target,p_up_normal);
+	set_global_transform(lookat);
+
+}
+
+
+Camera::Camera() {
+
+	camera = VisualServer::get_singleton()->camera_create();
+	size=1;
+	fov=0;
+	near=0;
+	far=0;
+	current=false;
+	viewport_ptr=NULL;
+	force_change=false;
+	mode=PROJECTION_PERSPECTIVE;
+	set_perspective(60.0,0.1,100.0);
+	vaspect=false;
+	layers=0xFFFFFFFF;
+	//active=false;
+}
+
+
+Camera::~Camera() {
+
+	VisualServer::get_singleton()->free(camera);
+
+}
+
+