/**
Constructs an antipenumbra from a source portal to a target portal.
For each antipenumbral plane p (except the source plane), it is
guaranteed to be the case that:
- classify_polygon_against_plane(*source, p) == CP_BACK
- classify_polygon_against_plane(*target, p) == CP_FRONT
@param source The source portal
@param target The target portal
*/
Antipenumbra::Antipenumbra(const Portal_Ptr& source, const Portal_Ptr& target)
{
m_planes.push_back(make_plane(*source));
// Note: In both cases here, source lies behind the generated planes and target lies in front of them.
add_clip_planes(source, target, CP_BACK); // add planes from source to target, with source behind them
add_clip_planes(target, source, CP_FRONT); // add planes from target to source, with target in front of them
}
ENTRYPOINT void
init_hexstrut (ModeInfo *mi)
{
hexstrut_configuration *bp;
MI_INIT (mi, bps, free_hexstrut);
bp = &bps[MI_SCREEN(mi)];
bp->glx_context = init_GL(mi);
reshape_hexstrut (mi, MI_WIDTH(mi), MI_HEIGHT(mi));
{
double spin_speed = 0.002;
double wander_speed = 0.003;
double spin_accel = 1.0;
bp->rot = make_rotator (do_spin ? spin_speed : 0,
do_spin ? spin_speed : 0,
do_spin ? spin_speed : 0,
spin_accel,
do_wander ? wander_speed : 0,
False);
bp->trackball = gltrackball_init (True);
}
/* Let's tilt the scene a little. */
gltrackball_reset (bp->trackball,
-0.4 + frand(0.8),
-0.4 + frand(0.8));
if (thickness < 0.05) thickness = 0.05;
if (thickness < 0.05) MI_IS_WIREFRAME(mi) = True;
if (thickness > 1.7) thickness = 1.7;
if (speed > 2) speed = 2;
bp->ncolors = 64;
bp->colors = (XColor *) calloc(bp->ncolors, sizeof(XColor));
make_smooth_colormap (0, 0, 0,
bp->colors, &bp->ncolors,
False, 0, False);
make_plane (mi);
}
/** Create a list of surfaces.
*/
list356_t* get_surfaces() {
list356_t* surfaces = make_list() ;
// Table.
point3_t vertices[8] = {
{0, 0, 1}, {8, 0, 1}, {0, 8, 1}, {8, 8, 1},
{0, 0, -1}, {8, 0, -1}, {0, 8, -1}, {8, 8, -1},
} ;
int indices[] = {
0, 1, 3, 0, 3, 2, // top
0, 2, 6, 0, 6, 4, // left
4, 6, 7, 4, 7, 5, // bottom
1, 5, 7, 1, 7, 3, // right
2, 3, 7, 2, 7, 6, // back
0, 4, 5, 0, 5, 1 // front
} ;
int top_offset = 6 ;
int offset = 36 ;
list356_t* table_surfaces = make_list() ;
for (int i=0; i<top_offset/3; ++i) {
lst_add(table_surfaces, make_triangle(
vertices[indices[3*i]],
vertices[indices[3*i+1]],
vertices[indices[3*i+2]],
&RED, &RED, &WHITE, 10.0f)) ;
}
for (int i=top_offset/3; i<offset/3; ++i) {
lst_add(table_surfaces, make_triangle(
vertices[indices[3*i]],
vertices[indices[3*i+1]],
vertices[indices[3*i+2]],
&GREEN, &GREEN, &WHITE, 10.0f)) ;
}
// Two purple spheres.
lst_add(table_surfaces,
make_sphere(6, 6, 1.75+.01, .75,
&PURPLE, &PURPLE, &WHITE, 100.0f)) ;
lst_add(table_surfaces,
make_sphere(5, 2, 1.75+.01, .75,
&PURPLE, &PURPLE, &WHITE, 100.0f)) ;
// Transparent cube.
point3_t cube_vertices[] = {
{4, 0, 3}, {5, 0, 3}, {4, 1, 3}, {5, 1, 3},
{4, 0, 1.01}, {5, 0, 1.01}, {4, 1, 1.01}, {5, 1, 1.01},
} ;
for (int i=0; i<offset/3; ++i) {
surface_t* t = make_triangle(
cube_vertices[indices[3*i]],
cube_vertices[indices[3*i+1]],
cube_vertices[indices[3*i+2]],
&BLACK, &BLACK, &WHITE, 10.0f) ;
t->refr_index = 1.1f ;
t->atten = &GREENISH ;
lst_add(surfaces, t) ;
}
list356_itr_t* itr = lst_iterator(table_surfaces) ;
while (lst_has_next(itr)) lst_add(surfaces, lst_next(itr)) ;
lst_free(table_surfaces) ;
// Plane at z=-1.
surface_t* plane = make_plane(
(point3_t){0, 0, -1},
(point3_t){1, 0, -1},
(point3_t){1, 1, -1},
&LIGHT_GREY, &LIGHT_GREY, &BLACK, 10.0f) ;
plane->refl_color = &LIGHT_GREY ;
lst_add(surfaces, plane) ;
return surfaces ;
}
/*!
Draws a fog plane at the far clipping plane to mask out clipping of terrain.
\return none
\author jfpatry
\date Created: 2000-08-31
\date Modified: 2000-08-31
*/
void draw_fog_plane()
{
plane_t left_edge_plane, right_edge_plane;
plane_t left_clip_plane, right_clip_plane;
plane_t far_clip_plane;
plane_t bottom_clip_plane;
plane_t bottom_plane, top_plane;
scalar_t course_width, course_length;
scalar_t course_angle, slope;
point_t left_pt, right_pt, pt;
point_t top_left_pt, top_right_pt;
point_t bottom_left_pt, bottom_right_pt;
vector_t left_vec, right_vec;
scalar_t height;
GLfloat *fog_colour;
if ( is_fog_on() == False ) {
return;
}
set_gl_options( FOG_PLANE );
get_course_dimensions( &course_width, &course_length );
course_angle = get_course_angle();
slope = tan( ANGLES_TO_RADIANS( course_angle ) );
left_edge_plane = make_plane( 1.0, 0.0, 0.0, 0.0 );
right_edge_plane = make_plane( -1.0, 0.0, 0.0, course_width );
far_clip_plane = get_far_clip_plane();
left_clip_plane = get_left_clip_plane();
right_clip_plane = get_right_clip_plane();
bottom_clip_plane = get_bottom_clip_plane();
/* Find the bottom plane */
bottom_plane.nml = make_vector( 0.0, 1, -slope );
height = get_terrain_base_height( 0 );
/* Unoptimized version
pt = make_point( 0, height, 0 );
bottom_plane.d = -( pt.x * bottom_plane.nml.x +
pt.y * bottom_plane.nml.y +
pt.z * bottom_plane.nml.z );
*/
bottom_plane.d = -height * bottom_plane.nml.y;
/* Find the top plane */
top_plane.nml = bottom_plane.nml;
height = get_terrain_max_height( 0 );
top_plane.d = -height * top_plane.nml.y;
if(get_player_data(local_player())->view.mode == TUXEYE)
{
bottom_clip_plane.nml = make_vector( 0.0, 1, -slope );
height = get_terrain_base_height( 0 ) - 40;
bottom_clip_plane.d = -height * bottom_clip_plane.nml.y;
}
/* Now find the bottom left and right points of the fog plane */
if ( !intersect_planes( bottom_plane, far_clip_plane, left_clip_plane, &left_pt ) )
return;
if ( !intersect_planes( bottom_plane, far_clip_plane, right_clip_plane, &right_pt ) )
return;
if ( !intersect_planes( top_plane, far_clip_plane, left_clip_plane, &top_left_pt ) )
return;
if ( !intersect_planes( top_plane, far_clip_plane, right_clip_plane, &top_right_pt ) )
return;
if ( !intersect_planes( bottom_clip_plane, far_clip_plane, left_clip_plane, &bottom_left_pt ) )
return;
if ( !intersect_planes( bottom_clip_plane, far_clip_plane, right_clip_plane, &bottom_right_pt ) )
return;
left_vec = subtract_points( top_left_pt, left_pt );
right_vec = subtract_points( top_right_pt, right_pt );
/* Now draw the fog plane */
set_gl_options( FOG_PLANE );
fog_colour = get_fog_colour();
glColor4fv( fog_colour );
#ifdef __APPLE__DISABLED__
#undef glEnableClientState
#undef glDisableClientState
#undef glVertexPointer
#undef glColorPointer
#undef glDrawArrays
point_t pt1,pt2,pt3,pt4;
pt1 = move_point( top_left_pt, left_vec );
pt2 = move_point( top_right_pt, right_vec );
pt3 = move_point( top_left_pt, scale_vector( 3.0, left_vec ) );
pt4 = move_point( top_right_pt, scale_vector( 3.0, right_vec ) );
const GLfloat verticesFog []=
{
bottom_left_pt.x, bottom_left_pt.y, bottom_left_pt.z,
bottom_right_pt.x, bottom_right_pt.y, bottom_right_pt.z,
left_pt.x, left_pt.y, left_pt.z,
right_pt.x, right_pt.y, right_pt.z,
top_left_pt.x, top_left_pt.y, top_left_pt.z,
top_right_pt.x, top_right_pt.y, top_right_pt.z,
pt1.x, pt1.y, pt1.z,
pt2.x, pt2.y, pt2.z,
pt3.x, pt3.y, pt3.z,
pt4.x, pt4.y, pt4.z
};
const GLfloat colorsFog []=
{
fog_colour[0], fog_colour[1], fog_colour[2], fog_colour[3],
fog_colour[0], fog_colour[1], fog_colour[2], fog_colour[3],
fog_colour[0], fog_colour[1], fog_colour[2], fog_colour[3],
fog_colour[0], fog_colour[1], fog_colour[2], fog_colour[3],
fog_colour[0], fog_colour[1], fog_colour[2], 0.9 ,
fog_colour[0], fog_colour[1], fog_colour[2], 0.9 ,
fog_colour[0], fog_colour[1], fog_colour[2], 0.3 ,
fog_colour[0], fog_colour[1], fog_colour[2], 0.3 ,
fog_colour[0], fog_colour[1], fog_colour[2], 0.0 ,
fog_colour[0], fog_colour[1], fog_colour[2], 0.0 ,
};
glEnableClientState (GL_VERTEX_ARRAY);
// glEnableClientState (GL_COLOR_ARRAY);
// glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glVertexPointer (3, GL_FLOAT , 0, verticesFog);
glColorPointer(4, GL_FLOAT, 0, colorsFog);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 10);
//glDisableClientState(GL_COLOR_ARRAY_POINTER);
#else
glBegin( GL_QUAD_STRIP );
glVertex3f( bottom_left_pt.x, bottom_left_pt.y, bottom_left_pt.z );
glVertex3f( bottom_right_pt.x, bottom_right_pt.y, bottom_right_pt.z );
glVertex3f( left_pt.x, left_pt.y, left_pt.z );
glVertex3f( right_pt.x, right_pt.y, right_pt.z );
glColor4f( fog_colour[0], fog_colour[1], fog_colour[2], 0.9 );
glVertex3f( top_left_pt.x, top_left_pt.y, top_left_pt.z );
glVertex3f( top_right_pt.x, top_right_pt.y, top_right_pt.z );
glColor4f( fog_colour[0], fog_colour[1], fog_colour[2], 0.3 );
pt = move_point( top_left_pt, left_vec );
glVertex3f( pt.x, pt.y, pt.z );
pt = move_point( top_right_pt, right_vec );
glVertex3f( pt.x, pt.y, pt.z );
glColor4f( fog_colour[0], fog_colour[1], fog_colour[2], 0.0 );
pt = move_point( top_left_pt, scale_vector( 3.0, left_vec ) );
glVertex3f( pt.x, pt.y, pt.z );
pt = move_point( top_right_pt, scale_vector( 3.0, right_vec ) );
glVertex3f( pt.x, pt.y, pt.z );
glEnd();
#endif
}
/**
Determines which planes are necessary for building the expanded brush (including bevel planes).
@param brush The initial brush
@return The necessary brush planes
*/
BrushExpander::BrushPlaneSet_Ptr BrushExpander::determine_brush_planes(const ColPolyBrush_CPtr& brush)
{
BrushPlaneSet_Ptr brushPlanes(new BrushPlaneSet);
// Add the planes of all the brush faces.
const std::vector<CollisionPolygon_Ptr>& faces = brush->faces();
int faceCount = static_cast<int>(faces.size());
for(int i=0; i<faceCount; ++i)
{
ColPolyAuxData_Ptr auxData(new ColPolyAuxData(faces[i]->auxiliary_data()));
brushPlanes->insert(BrushPlane(make_plane(*faces[i]), auxData));
}
// Try and add bevel planes (any unnecessary ones will not be added to the set due to the unique plane predicate).
// Add "axial planes going through an edge or corner of the brush that are not already part of the brush".
const AABB3d& bounds = brush->bounds();
brushPlanes->insert(BrushPlane(Plane(Vector3d(-1,0,0), -bounds.minimum().x)));
brushPlanes->insert(BrushPlane(Plane(Vector3d(0,-1,0), -bounds.minimum().y)));
brushPlanes->insert(BrushPlane(Plane(Vector3d(0,0,-1), -bounds.minimum().z)));
brushPlanes->insert(BrushPlane(Plane(Vector3d(1,0,0), bounds.maximum().x)));
brushPlanes->insert(BrushPlane(Plane(Vector3d(0,1,0), bounds.maximum().y)));
brushPlanes->insert(BrushPlane(Plane(Vector3d(0,0,1), bounds.maximum().z)));
// Along edges, add "all planes that are parallel to one of the coordinate axes and do not change
// the shape of the brush".
for(int i=0; i<faceCount; ++i)
{
int vertCount = faces[i]->vertex_count();
for(int j=0; j<vertCount; ++j)
{
int k = (j+1)%vertCount;
const Vector3d& p1 = faces[i]->vertex(j);
const Vector3d& p2 = faces[i]->vertex(k);
Plane_Ptr possiblePlanes[] =
{
make_axial_plane(p1, p2, Vector3d(1,0,0)),
make_axial_plane(p1, p2, Vector3d(0,1,0)),
make_axial_plane(p1, p2, Vector3d(0,0,1))
};
for(int m=0; m<3; ++m)
{
if(possiblePlanes[m])
{
BrushPlane possiblePlane(*possiblePlanes[m]);
BrushPlane flippedPossiblePlane(possiblePlanes[m]->flip());
// If this plane (or its flipped equivalent) isn't currently in the brush plane set.
if( brushPlanes->find(possiblePlane) == brushPlanes->end() &&
brushPlanes->find(flippedPossiblePlane) == brushPlanes->end())
{
// If the brush is entirely behind this plane, it's a valid
// bevel plane, so add it. If the brush is entirely in front
// of it, its inverse plane is a valid bevel plane, so add
// that. Otherwise, carry on.
switch(classify_brush_against_plane(brush, possiblePlane.plane))
{
case CP_BACK:
brushPlanes->insert(possiblePlane);
break;
case CP_FRONT:
brushPlanes->insert(flippedPossiblePlane);
break;
default:
break;
}
}
}
}
}
}
return brushPlanes;
}
ExperimentalApp() : GLFWApp(1280, 800, "Geometric Algorithm Development App")
{
glfwSwapInterval(0);
igm.reset(new gui::ImGuiManager(window));
gui::make_dark_theme();
fixedTimer.start();
lights[0] = {{0, 10, -10}, {0, 0, 1}};
lights[1] = {{0, 10, 10}, {0, 1, 0}};
int width, height;
glfwGetWindowSize(window, &width, &height);
glViewport(0, 0, width, height);
grid = RenderableGrid(1, 100, 100);
cameraController.set_camera(&camera);
camera.look_at({0, 2.5, -2.5}, {0, 2.0, 0});
simpleShader = make_watched_shader(shaderMonitor, "../assets/shaders/simple_vert.glsl", "assets/shaders/simple_frag.glsl");
normalDebugShader = make_watched_shader(shaderMonitor, "../assets/shaders/normal_debug_vert.glsl", "assets/shaders/normal_debug_frag.glsl");
Renderable debugAxis = Renderable(make_axis(), false, GL_LINES);
debugAxis.pose = Pose(float4(0, 0, 0, 1), float3(0, 1, 0));
debugModels.push_back(std::move(debugAxis));
// Initial supershape settings
supershape = Renderable(make_supershape_3d(16, 5, 7, 4, 12));
supershape.pose.position = {0, 2, -2};
// Initialize PTF stuff
{
std::array<float3, 4> controlPoints = {float3(0.0f, 0.0f, 0.0f), float3(0.667f, 0.25f, 0.0f), float3(1.33f, 0.25f, 0.0f), float3(2.0f, 0.0f, 0.0f)};
ptf = make_parallel_transport_frame_bezier(controlPoints, 32);
for (int i = 0; i < ptf.size(); ++i)
{
Renderable p = Renderable(make_cube());
ptfBoxes.push_back(std::move(p));
}
}
// Initialize Parabolic pointer stuff
{
// Set up the ground plane used as a nav mesh for the parabolic pointer
worldSurface = make_plane(48, 48, 96, 96);
for (auto & p : worldSurface.vertices)
{
float4x4 model = make_rotation_matrix({1, 0, 0}, -ANVIL_PI / 2);
p = transform_coord(model, p);
}
worldSurfaceRenderable = Renderable(worldSurface);
parabolicPointer = make_parabolic_pointer(worldSurface, params);
}
// Initialize objects for ballistic trajectory tests
{
turret.source = Renderable(make_tetrahedron());
turret.source.pose = Pose({-5, 2, 5});
turret.target = Renderable(make_cube());
turret.target.pose = Pose({0, 0, 40});
turret.bullet = Renderable(make_sphere(1.0f));
}
float4x4 tMat = mul(make_translation_matrix({3, 4, 5}), make_rotation_matrix({0, 0, 1}, ANVIL_PI / 2));
auto p = make_pose_from_transform_matrix(tMat);
std::cout << tMat << std::endl;
std::cout << p << std::endl;
gl_check_error(__FILE__, __LINE__);
}
static plane make_plane(const vector& P0, const vector& P1, const vector& P2) {
const auto N = maths::normalise(cross(P1 - P0, P2 - P0));
return make_plane(P0, N);
}
plane(const vector& O, const vector& n) { *this = make_plane(O, n); }