virtualx-engine/bin/tests/test_physics.cpp
Juan Linietsky 118eed485e ObjectTypeDB was renamed to ClassDB. Types are meant to be more generic to Variant.
All usages of "type" to refer to classes were renamed to "class"
ClassDB has been exposed to GDScript.
OBJ_TYPE() macro is now GDCLASS()
2017-01-02 23:03:46 -03:00

644 lines
19 KiB
C++

/*************************************************************************/
/* test_physics.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2016 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 "test_physics.h"
#include "servers/visual_server.h"
#include "servers/physics_server.h"
#include "os/main_loop.h"
#include "math_funcs.h"
#include "print_string.h"
#include "map.h"
#include "os/os.h"
#include "quick_hull.h"
class TestPhysicsMainLoop : public MainLoop {
GDCLASS( TestPhysicsMainLoop, MainLoop );
enum {
LINK_COUNT = 20,
};
RID test_cube;
RID plane;
RID sphere;
RID light;
RID camera;
RID mover;
RID scenario;
RID space;
RID character;
float ofs_x,ofs_y;
Point2 joy_direction;
List<RID> bodies;
Map<PhysicsServer::ShapeType,RID> type_shape_map;
Map<PhysicsServer::ShapeType,RID> type_mesh_map;
void body_changed_transform(Object *p_state, RID p_visual_instance) {
PhysicsDirectBodyState *state = (PhysicsDirectBodyState*)p_state;
VisualServer *vs=VisualServer::get_singleton();
Transform t=state->get_transform();
//t.basis.scale( Vector3(1.0,0.5,0.2) );
vs->instance_set_transform(p_visual_instance,t);
}
bool quit;
protected:
static void _bind_methods() {
ClassDB::bind_method("body_changed_transform",&TestPhysicsMainLoop::body_changed_transform);
}
RID create_body(PhysicsServer::ShapeType p_shape, PhysicsServer::BodyMode p_body,const Transform p_location,bool p_active_default=true,const Transform&p_shape_xform=Transform()) {
VisualServer *vs=VisualServer::get_singleton();
PhysicsServer * ps = PhysicsServer::get_singleton();
RID mesh_instance = vs->instance_create2(type_mesh_map[p_shape],scenario);
RID body = ps->body_create(p_body,!p_active_default);
ps->body_set_space(body,space);
ps->body_set_param(body,PhysicsServer::BODY_PARAM_BOUNCE,0.0);
//todo set space
ps->body_add_shape(body,type_shape_map[p_shape]);
ps->body_set_force_integration_callback(body,this,"body_changed_transform",mesh_instance);
ps->body_set_state( body, PhysicsServer::BODY_STATE_TRANSFORM,p_location);
bodies.push_back(body);
if (p_body==PhysicsServer::BODY_MODE_STATIC) {
vs->instance_set_transform(mesh_instance,p_location);
}
return body;
}
RID create_static_plane(const Plane& p_plane) {
PhysicsServer * ps = PhysicsServer::get_singleton();
RID plane_shape = ps->shape_create(PhysicsServer::SHAPE_PLANE);;
ps->shape_set_data( plane_shape, p_plane );
RID b = ps->body_create( PhysicsServer::BODY_MODE_STATIC );
ps->body_set_space(b,space);
//todo set space
ps->body_add_shape(b, plane_shape);
return b;
}
void configure_body(RID p_body,float p_mass, float p_friction, float p_bounce) {
PhysicsServer * ps = PhysicsServer::get_singleton();
ps->body_set_param( p_body, PhysicsServer::BODY_PARAM_MASS, p_mass );
ps->body_set_param( p_body, PhysicsServer::BODY_PARAM_FRICTION, p_friction );
ps->body_set_param( p_body, PhysicsServer::BODY_PARAM_BOUNCE, p_bounce );
}
void init_shapes() {
VisualServer *vs=VisualServer::get_singleton();
PhysicsServer * ps = PhysicsServer::get_singleton();
/* SPHERE SHAPE */
RID sphere_mesh = vs->make_sphere_mesh(10,20,0.5);
type_mesh_map[PhysicsServer::SHAPE_SPHERE]=sphere_mesh;
RID sphere_shape=ps->shape_create(PhysicsServer::SHAPE_SPHERE);
ps->shape_set_data( sphere_shape, 0.5 );
type_shape_map[PhysicsServer::SHAPE_SPHERE]=sphere_shape;
/* BOX SHAPE */
DVector<Plane> box_planes = Geometry::build_box_planes(Vector3(0.5,0.5,0.5));
RID box_mesh = vs->mesh_create();
Geometry::MeshData box_data = Geometry::build_convex_mesh(box_planes);
vs->mesh_add_surface_from_mesh_data(box_mesh,box_data);
type_mesh_map[PhysicsServer::SHAPE_BOX]=box_mesh;
RID box_shape=ps->shape_create(PhysicsServer::SHAPE_BOX);
ps->shape_set_data( box_shape, Vector3(0.5,0.5,0.5) );
type_shape_map[PhysicsServer::SHAPE_BOX]=box_shape;
/* CAPSULE SHAPE */
DVector<Plane> capsule_planes = Geometry::build_capsule_planes(0.5,0.7,12,Vector3::AXIS_Z);
RID capsule_mesh = vs->mesh_create();
Geometry::MeshData capsule_data = Geometry::build_convex_mesh(capsule_planes);
vs->mesh_add_surface_from_mesh_data(capsule_mesh,capsule_data);
type_mesh_map[PhysicsServer::SHAPE_CAPSULE]=capsule_mesh;
RID capsule_shape=ps->shape_create(PhysicsServer::SHAPE_CAPSULE);
Dictionary capsule_params;
capsule_params["radius"]=0.5;
capsule_params["height"]=1.4;
ps->shape_set_data( capsule_shape, capsule_params );
type_shape_map[PhysicsServer::SHAPE_CAPSULE]=capsule_shape;
/* CONVEX SHAPE */
DVector<Plane> convex_planes = Geometry::build_cylinder_planes(0.5,0.7,5,Vector3::AXIS_Z);
RID convex_mesh = vs->mesh_create();
Geometry::MeshData convex_data = Geometry::build_convex_mesh(convex_planes);
QuickHull::build(convex_data.vertices,convex_data);
vs->mesh_add_surface_from_mesh_data(convex_mesh,convex_data);
type_mesh_map[PhysicsServer::SHAPE_CONVEX_POLYGON]=convex_mesh;
RID convex_shape=ps->shape_create(PhysicsServer::SHAPE_CONVEX_POLYGON);
ps->shape_set_data( convex_shape, convex_data.vertices );
type_shape_map[PhysicsServer::SHAPE_CONVEX_POLYGON]=convex_shape;
}
void make_trimesh(Vector<Vector3> p_faces,const Transform& p_xform=Transform()) {
VisualServer *vs=VisualServer::get_singleton();
PhysicsServer * ps = PhysicsServer::get_singleton();
RID trimesh_shape = ps->shape_create(PhysicsServer::SHAPE_CONCAVE_POLYGON);
ps->shape_set_data(trimesh_shape, p_faces);
p_faces=ps->shape_get_data(trimesh_shape); // optimized one
Vector<Vector3> normals; // for drawing
for (int i=0;i<p_faces.size()/3;i++) {
Plane p( p_faces[i*3+0],p_faces[i*3+1], p_faces[i*3+2] );
normals.push_back(p.normal);
normals.push_back(p.normal);
normals.push_back(p.normal);
}
RID trimesh_mesh = vs->mesh_create();
Array d;
d.resize(VS::ARRAY_MAX);
d[VS::ARRAY_VERTEX]=p_faces;
d[VS::ARRAY_NORMAL]=normals;
vs->mesh_add_surface_from_arrays(trimesh_mesh, VS::PRIMITIVE_TRIANGLES, d );
//vs->material_set_flag( trimesh_mat, VisualServer::MATERIAL_FLAG_UNSHADED,true);
RID triins = vs->instance_create2(trimesh_mesh,scenario);
RID tribody = ps->body_create( PhysicsServer::BODY_MODE_STATIC);
ps->body_set_space(tribody,space);
//todo set space
ps->body_add_shape(tribody, trimesh_shape);
Transform tritrans = p_xform;
ps->body_set_state( tribody, PhysicsServer::BODY_STATE_TRANSFORM, tritrans );
vs->instance_set_transform( triins, tritrans );
//RID trimesh_material = vs->fixed_material_create();
//vs->material_generate( trimesh_material, Color(0.2,0.4,0.6) );
//vs->mesh_surface_set_material( trimesh_mesh, 0, trimesh_material );
}
void make_grid(int p_width,int p_height,float p_cellsize,float p_cellheight,const Transform& p_xform=Transform()) {
Vector< Vector< float > > grid;
grid.resize(p_width);
for (int i=0;i<p_width;i++) {
grid[i].resize(p_height);
for (int j=0;j<p_height;j++) {
grid[i][j]=1.0+Math::random(-p_cellheight, p_cellheight );
}
}
Vector<Vector3> faces;
for (int i=1;i<p_width;i++) {
for (int j=1;j<p_height;j++) {
#define MAKE_VERTEX(m_x,m_z)\
faces.push_back( Vector3( (m_x-p_width/2)*p_cellsize, grid[m_x][m_z], (m_z-p_height/2)*p_cellsize ) )
MAKE_VERTEX(i,j-1);
MAKE_VERTEX(i,j);
MAKE_VERTEX(i-1,j);
MAKE_VERTEX(i-1,j-1);
MAKE_VERTEX(i,j-1);
MAKE_VERTEX(i-1,j);
}
}
make_trimesh(faces,p_xform);
}
public:
virtual void input_event(const InputEvent& p_event) {
if (p_event.type==InputEvent::MOUSE_MOTION && p_event.mouse_motion.button_mask&4) {
ofs_y-=p_event.mouse_motion.relative_y/200.0;
ofs_x+=p_event.mouse_motion.relative_x/200.0;
}
if (p_event.type==InputEvent::MOUSE_MOTION && p_event.mouse_motion.button_mask&1) {
float y=-p_event.mouse_motion.relative_y/20.0;
float x=p_event.mouse_motion.relative_x/20.0;
if (mover.is_valid()) {
PhysicsServer * ps = PhysicsServer::get_singleton();
Transform t = ps->body_get_state(mover,PhysicsServer::BODY_STATE_TRANSFORM);
t.origin+=Vector3(x,y,0);
ps->body_set_state(mover,PhysicsServer::BODY_STATE_TRANSFORM,t);
}
}
if (p_event.type == InputEvent::JOYSTICK_MOTION) {
if (p_event.joy_motion.axis == 0) {
joy_direction.x = p_event.joy_motion.axis_value;
};
if (p_event.joy_motion.axis == 1) {
joy_direction.y = p_event.joy_motion.axis_value;
};
};
}
virtual void request_quit() {
quit=true;
}
virtual void init() {
ofs_x=ofs_y=0;
init_shapes();
PhysicsServer *ps = PhysicsServer::get_singleton();
space=ps->space_create();
ps->space_set_active(space,true);
VisualServer *vs=VisualServer::get_singleton();
/* LIGHT */
RID lightaux = vs->light_create( VisualServer::LIGHT_DIRECTIONAL );
//vs->light_set_color( lightaux, VisualServer::LIGHT_COLOR_AMBIENT, Color(0.0,0.0,0.0) );
scenario = vs->scenario_create();
vs->light_set_shadow(lightaux,true);
light = vs->instance_create2( lightaux,scenario );
Transform t;
t.rotate(Vector3(1.0,0,0),0.6);
vs->instance_set_transform(light,t);
/* CAMERA */
camera = vs->camera_create();
RID viewport = vs->viewport_create();
vs->viewport_attach_camera( viewport, camera );
vs->viewport_attach_to_screen(viewport);
vs->viewport_set_scenario( viewport, scenario );
vs->camera_set_perspective(camera,60,0.1,40.0);
vs->camera_set_transform(camera,Transform( Matrix3(), Vector3(0,9,12)));
//vs->scenario_set_debug(scenario,VS::SCENARIO_DEBUG_WIREFRAME);
Transform gxf;
gxf.basis.scale(Vector3(1.4,0.4,1.4));
gxf.origin=Vector3(-2,1,-2);
make_grid(5,5,2.5,1,gxf);
// create_body(PhysicsServer::SHAPE_BOX,PhysicsServer::BODY_MODE_STATIC,gxf);
//create_static_plane( Plane( Vector3(0,1,0), -2) );
// test_joint();
test_fall();
//test_joint();
/*
Vector<Vector3> faces;
faces.push_back( Vector3(10,0,-5) );
faces.push_back( Vector3(0,0,10) );
faces.push_back( Vector3(-10,-0.2,-5) );
make_trimesh(faces);
*/
/* Make Trimesh */
quit=false;
return;
#if 0
#define GRID_SIZE 5
float grid[GRID_SIZE][GRID_SIZE];
for (int i=0;i<GRID_SIZE;i++) {
for (int j=0;j<GRID_SIZE;j++) {
grid[j][i]=Math::random(0.0, 1.0 );
}
}
Vector<Vector3> faces;
for (int i=1;i<GRID_SIZE;i++) {
for (int j=1;j<GRID_SIZE;j++) {
#define MAKE_VERTEX(m_x,m_z)\
faces.push_back( Vector3( m_x-GRID_SIZE/2.0, grid[m_x][m_z], m_z-GRID_SIZE/2.0 )*3.0 )
MAKE_VERTEX(i,j-1);
MAKE_VERTEX(i,j);
MAKE_VERTEX(i-1,j);
MAKE_VERTEX(i-1,j-1);
MAKE_VERTEX(i,j-1);
MAKE_VERTEX(i-1,j);
}
}
/*
faces.clear();
faces.push_back( Vector3(0,0,-5) );
faces.push_back( Vector3(1,0,-1) );
faces.push_back( Vector3(-1,-0,-1) );
*/
RID trimesh_shape = ps->shape_create();
ps->shape_set_data(trimesh_shape, PhysicsServer::SHAPE_CONCAVE_POLYGON,faces);
faces=ps->shape_get_shape(trimesh_shape, 0);
Vector<Vector3> normals; // for drawing
for (int i=0;i<faces.size()/3;i++) {
Plane p( faces[i*3+0],faces[i*3+1], faces[i*3+2] );
normals.push_back(p.normal);
normals.push_back(p.normal);
normals.push_back(p.normal);
}
RID trimesh_mesh = vs->mesh_create();
vs->mesh_add_surface(trimesh_mesh, VS::PRIMITIVE_TRIANGLES, VS::ARRAY_FORMAT_VERTEX|VS::ARRAY_FORMAT_NORMAL, faces.size() );
vs->mesh_surface_set_array(trimesh_mesh,0,VS::ARRAY_VERTEX, faces );
vs->mesh_surface_set_array(trimesh_mesh,0,VS::ARRAY_NORMAL, normals );
RID trimesh_mat = vs->fixed_material_create();
vs->material_generate( trimesh_mat, Color(1.0,0.5,0.3) );
vs->mesh_surface_set_material( trimesh_mesh, 0, trimesh_mat );
RID triins = vs->instance_create2(trimesh_mesh);
RID tribody = ps->body_create( PhysicsServer::BODY_MODE_STATIC, trimesh_shape);
Transform tritrans = Transform( Matrix3(), Vector3(0,0,-2) );
ps->body_set_state( tribody, PhysicsServer::BODY_STATE_TRANSFORM, tritrans );
vs->instance_set_transform( triins, tritrans );
RID trimesh_material = vs->fixed_material_create();
vs->material_generate( trimesh_material, Color(0.2,0.4,0.6) );
vs->mesh_surface_set_material( trimesh_mesh, 0, trimesh_material );
#endif
}
virtual bool iteration(float p_time) {
if (mover.is_valid()) {
static float joy_speed = 10;
PhysicsServer * ps = PhysicsServer::get_singleton();
Transform t = ps->body_get_state(mover,PhysicsServer::BODY_STATE_TRANSFORM);
t.origin+=Vector3(joy_speed * joy_direction.x * p_time, -joy_speed * joy_direction.y * p_time,0);
ps->body_set_state(mover,PhysicsServer::BODY_STATE_TRANSFORM,t);
};
Transform cameratr;
cameratr.rotate(Vector3(0,1,0),ofs_x);
cameratr.rotate(Vector3(1,0,0),-ofs_y);
cameratr.translate(Vector3(0,2,8));
VisualServer *vs=VisualServer::get_singleton();
vs->camera_set_transform(camera,cameratr);
return quit;
}
virtual void finish() {
}
void test_joint() {
#if 0
PhysicsServer * ps = PhysicsServer::get_singleton();
mover = create_body(PhysicsServer::SHAPE_BOX,PhysicsServer::BODY_MODE_STATIC,Transform(Matrix3(),Vector3(0,0,-24)));
RID b = create_body(PhysicsServer::SHAPE_CAPSULE,PhysicsServer::BODY_MODE_RIGID,Transform());
ps->joint_create_double_pin(b,Vector3(0,0,1.0),mover,Vector3(0,0,0));
ps->body_add_collision_exception(mover,b);
List<String> cmdline = OS::get_singleton()->get_cmdline_args();
int link_count = LINK_COUNT;
if (cmdline.size() > 0 && cmdline[cmdline.size()-1].to_int()) {
link_count = cmdline[cmdline.size()-1].to_int();
};
for(int i=0;i<link_count;i++) {
RID c = create_body(PhysicsServer::SHAPE_CAPSULE,PhysicsServer::BODY_MODE_RIGID,Transform());
ps->joint_create_double_pin(b,Vector3(0,0,-0.7),c,Vector3(0,0,0.7));
ps->body_add_collision_exception(c,b);
b=c;
}
create_static_plane(Plane(Vector3(0,1,0),-8));
#endif
}
void test_hinge() {
#if 0
PhysicsServer * ps = PhysicsServer::get_singleton();
mover = create_body(PhysicsServer::SHAPE_BOX,PhysicsServer::BODY_MODE_STATIC,Transform(Matrix3(),Vector3(0,0,-24)));
RID b = create_body(PhysicsServer::SHAPE_BOX,PhysicsServer::BODY_MODE_RIGID,Transform());
ps->joint_create_double_hinge(b,Transform(Matrix3(),Vector3(1,1,1.0)),mover,Transform(Matrix3(),Vector3(0,0,0)));
ps->body_add_collision_exception(mover,b);
/*
for(int i=0;i<20;i++) {
RID c = create_body(PhysicsServer::SHAPE_CAPSULE,PhysicsServer::BODY_MODE_RIGID,Transform());
ps->joint_create_double_hinge(b,Transform(Matrix3(),Vector3(0,0,-0.7)),c,Transform(Matrix3(),Vector3(0,0,0.7)));
ps->body_add_collision_exception(c,b);
b=c;
}
*/
//create_static_plane(Plane(Vector3(0,1,0),-8));
#endif
}
void test_character() {
VisualServer *vs=VisualServer::get_singleton();
PhysicsServer * ps = PhysicsServer::get_singleton();
DVector<Plane> capsule_planes = Geometry::build_capsule_planes(0.5,1,12,5,Vector3::AXIS_Y);
RID capsule_mesh = vs->mesh_create();
Geometry::MeshData capsule_data = Geometry::build_convex_mesh(capsule_planes);
vs->mesh_add_surface_from_mesh_data(capsule_mesh,capsule_data);
type_mesh_map[PhysicsServer::SHAPE_CAPSULE]=capsule_mesh;
RID capsule_shape=ps->shape_create(PhysicsServer::SHAPE_CAPSULE);
Dictionary capsule_params;
capsule_params["radius"]=0.5;
capsule_params["height"]=1;
Transform shape_xform;
shape_xform.rotate(Vector3(1,0,0),Math_PI/2.0);
//shape_xform.origin=Vector3(1,1,1);
ps->shape_set_data( capsule_shape, capsule_params);
RID mesh_instance = vs->instance_create2(capsule_mesh,scenario);
character = ps->body_create(PhysicsServer::BODY_MODE_CHARACTER);
ps->body_set_space(character,space);
//todo add space
ps->body_add_shape(character,capsule_shape);
ps->body_set_force_integration_callback(character,this,"body_changed_transform",mesh_instance);
ps->body_set_state( character, PhysicsServer::BODY_STATE_TRANSFORM,Transform(Matrix3(),Vector3(-2,5,-2)));
bodies.push_back(character);
}
void test_fall() {
for (int i=0;i<35;i++) {
static const PhysicsServer::ShapeType shape_idx[]={
PhysicsServer::SHAPE_CAPSULE,
PhysicsServer::SHAPE_BOX,
PhysicsServer::SHAPE_SPHERE,
PhysicsServer::SHAPE_CONVEX_POLYGON
};
PhysicsServer::ShapeType type=shape_idx[i%4];
//type=PhysicsServer::SHAPE_CONVEX_POLYGON;
Transform t;
t.origin=Vector3(0.0*i,3.5+1.1*i,0.7+0.0*i);
//t.origin=Vector3(-0.7+0.0*i,0.5+4.1*i,0);
t.basis.rotate(Vector3(0.2,-1,0),Math_PI/2*0.6);
//t.basis.rotate(Vector3(0,-1,0),Math_PI/4*i);
//t.basis.rotate(Vector3(0,-1,0),Math_PI/4*i);
//t.basis.rotate(Vector3(-1,0,0),Math_PI/4*i);
create_body(type,PhysicsServer::BODY_MODE_RIGID,t);
//RID b = create_body(type,i==0?PhysicsServer::BODY_MODE_STATIC:PhysicsServer::BODY_MODE_RIGID,t);
}
create_static_plane( Plane( Vector3(0,1,0), -1) );
/*
create_static_plane( Plane( Vector3(1,0,0), -2) );
create_static_plane( Plane( Vector3(-1,0,0), -2) );
create_static_plane( Plane( Vector3(0,0,1), -2) );
create_static_plane( Plane( Vector3(0,0,-1), -2) );
*/
}
void test_activate() {
create_body(PhysicsServer::SHAPE_BOX,PhysicsServer::BODY_MODE_RIGID,Transform(Matrix3(),Vector3(0,2,0)),true);
//create_body(PhysicsServer::SHAPE_SPHERE,PhysicsServer::BODY_MODE_RIGID,Transform(Matrix3(),Vector3(0,6,0)),true);
create_static_plane( Plane( Vector3(0,1,0), -1) );
}
virtual bool idle(float p_time) {
return false;
}
TestPhysicsMainLoop() {
}
};
namespace TestPhysics {
MainLoop* test() {
return memnew( TestPhysicsMainLoop );
}
}