本文整理汇总了C++中Transform2D::basis_xform方法的典型用法代码示例。如果您正苦于以下问题：C++ Transform2D::basis_xform方法的具体用法？C++ Transform2D::basis_xform怎么用？C++ Transform2D::basis_xform使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Transform2D的用法示例。
在下文中一共展示了Transform2D::basis_xform方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1:
Ref<InputEvent> InputEventScreenDrag::xformed_by(const Transform2D &p_xform, const Vector2 &p_local_ofs) const {
Ref<InputEventScreenDrag> sd;
sd.instance();
sd->set_device(get_device());
sd->set_index(index);
sd->set_position(p_xform.xform(pos + p_local_ofs));
sd->set_relative(p_xform.basis_xform(relative));
sd->set_speed(p_xform.basis_xform(speed));
return sd;
}示例2:
bool BodyPair2DSW::_test_ccd(real_t p_step, Body2DSW *p_A, int p_shape_A, const Transform2D &p_xform_A, Body2DSW *p_B, int p_shape_B, const Transform2D &p_xform_B, bool p_swap_result) {
Vector2 motion = p_A->get_linear_velocity() * p_step;
real_t mlen = motion.length();
if (mlen < CMP_EPSILON)
return false;
Vector2 mnormal = motion / mlen;
real_t min, max;
p_A->get_shape(p_shape_A)->project_rangev(mnormal, p_xform_A, min, max);
bool fast_object = mlen > (max - min) * 0.3; //going too fast in that direction
if (!fast_object) { //did it move enough in this direction to even attempt raycast? let's say it should move more than 1/3 the size of the object in that axis
return false;
}
//cast a segment from support in motion normal, in the same direction of motion by motion length
//support is the worst case collision point, so real collision happened before
int a;
Vector2 s[2];
p_A->get_shape(p_shape_A)->get_supports(p_xform_A.basis_xform(mnormal).normalized(), s, a);
Vector2 from = p_xform_A.xform(s[0]);
Vector2 to = from + motion;
Transform2D from_inv = p_xform_B.affine_inverse();
Vector2 local_from = from_inv.xform(from - mnormal * mlen * 0.1); //start from a little inside the bounding box
Vector2 local_to = from_inv.xform(to);
Vector2 rpos, rnorm;
if (!p_B->get_shape(p_shape_B)->intersect_segment(local_from, local_to, rpos, rnorm))
return false;
//ray hit something
Vector2 hitpos = p_xform_B.xform(rpos);
Vector2 contact_A = to;
Vector2 contact_B = hitpos;
//create a contact
if (p_swap_result)
_contact_added_callback(contact_B, contact_A);
else
_contact_added_callback(contact_A, contact_B);
return true;
}示例3:
bool CollisionSolver2DSW::solve_static_line(const Shape2DSW *p_shape_A, const Transform2D &p_transform_A, const Shape2DSW *p_shape_B, const Transform2D &p_transform_B, CallbackResult p_result_callback, void *p_userdata, bool p_swap_result) {
const LineShape2DSW *line = static_cast<const LineShape2DSW *>(p_shape_A);
if (p_shape_B->get_type() == Physics2DServer::SHAPE_LINE)
return false;
Vector2 n = p_transform_A.basis_xform(line->get_normal()).normalized();
Vector2 p = p_transform_A.xform(line->get_normal() * line->get_d());
real_t d = n.dot(p);
Vector2 supports[2];
int support_count;
p_shape_B->get_supports(p_transform_A.affine_inverse().basis_xform(-n).normalized(), supports, support_count);
bool found = false;
for (int i = 0; i < support_count; i++) {
supports[i] = p_transform_B.xform(supports[i]);
real_t pd = n.dot(supports[i]);
if (pd >= d)
continue;
found = true;
Vector2 support_A = supports[i] - n * (pd - d);
if (p_result_callback) {
if (p_swap_result)
p_result_callback(supports[i], support_A, p_userdata);
else
p_result_callback(support_A, supports[i], p_userdata);
}
}
return found;
}示例4: _region_draw
void TextureRegionEditor::_region_draw() {
Ref<Texture> base_tex = NULL;
if (node_sprite)
base_tex = node_sprite->get_texture();
else if (node_patch9)
base_tex = node_patch9->get_texture();
else if (obj_styleBox.is_valid())
base_tex = obj_styleBox->get_texture();
else if (atlas_tex.is_valid())
base_tex = atlas_tex->get_atlas();
if (base_tex.is_null())
return;
Transform2D mtx;
mtx.elements[2] = -draw_ofs;
mtx.scale_basis(Vector2(draw_zoom, draw_zoom));
VS::get_singleton()->canvas_item_add_set_transform(edit_draw->get_canvas_item(), mtx);
edit_draw->draw_texture(base_tex, Point2());
VS::get_singleton()->canvas_item_add_set_transform(edit_draw->get_canvas_item(), Transform2D());
if (snap_mode == SNAP_GRID) {
Size2 s = edit_draw->get_size();
int last_cell;
if (snap_step.x != 0) {
if (snap_separation.x == 0)
for (int i = 0; i < s.width; i++) {
int cell = Math::fast_ftoi(Math::floor((mtx.affine_inverse().xform(Vector2(i, 0)).x - snap_offset.x) / snap_step.x));
if (i == 0)
last_cell = cell;
if (last_cell != cell)
edit_draw->draw_line(Point2(i, 0), Point2(i, s.height), Color(0.3, 0.7, 1, 0.3));
last_cell = cell;
}
else
for (int i = 0; i < s.width; i++) {
int cell = Math::fast_ftoi(Math::floor((mtx.affine_inverse().xform(Vector2(i, 0)).x - snap_offset.x) / (snap_step.x + snap_separation.x)));
if (i == 0)
last_cell = cell;
if (last_cell != cell)
edit_draw->draw_rect(Rect2(i - snap_separation.x * draw_zoom, 0, snap_separation.x * draw_zoom, s.height), Color(0.3, 0.7, 1, 0.3));
last_cell = cell;
}
}
if (snap_step.y != 0) {
if (snap_separation.y == 0)
for (int i = 0; i < s.height; i++) {
int cell = Math::fast_ftoi(Math::floor((mtx.affine_inverse().xform(Vector2(0, i)).y - snap_offset.y) / snap_step.y));
if (i == 0)
last_cell = cell;
if (last_cell != cell)
edit_draw->draw_line(Point2(0, i), Point2(s.width, i), Color(0.3, 0.7, 1, 0.3));
last_cell = cell;
}
else
for (int i = 0; i < s.height; i++) {
int cell = Math::fast_ftoi(Math::floor((mtx.affine_inverse().xform(Vector2(0, i)).y - snap_offset.y) / (snap_step.y + snap_separation.y)));
if (i == 0)
last_cell = cell;
if (last_cell != cell)
edit_draw->draw_rect(Rect2(0, i - snap_separation.y * draw_zoom, s.width, snap_separation.y * draw_zoom), Color(0.3, 0.7, 1, 0.3));
last_cell = cell;
}
}
} else if (snap_mode == SNAP_AUTOSLICE) {
for (List<Rect2>::Element *E = autoslice_cache.front(); E; E = E->next()) {
Rect2 r = E->get();
Vector2 endpoints[4] = {
mtx.basis_xform(r.position),
mtx.basis_xform(r.position + Vector2(r.size.x, 0)),
mtx.basis_xform(r.position + r.size),
mtx.basis_xform(r.position + Vector2(0, r.size.y))
};
for (int i = 0; i < 4; i++) {
int next = (i + 1) % 4;
edit_draw->draw_line(endpoints[i] - draw_ofs, endpoints[next] - draw_ofs, Color(0.3, 0.7, 1, 1), 2);
}
}
}
Ref<Texture> select_handle = get_icon("EditorHandle", "EditorIcons");
Rect2 scroll_rect(Point2(), mtx.basis_xform(base_tex->get_size()));
scroll_rect.expand_to(mtx.basis_xform(edit_draw->get_size()));
Vector2 endpoints[4] = {
mtx.basis_xform(rect.position),
mtx.basis_xform(rect.position + Vector2(rect.size.x, 0)),
mtx.basis_xform(rect.position + rect.size),
mtx.basis_xform(rect.position + Vector2(0, rect.size.y))
};
Color color(0.9, 0.5, 0.5);
for (int i = 0; i < 4; i++) {
int prev = (i + 3) % 4;
int next = (i + 1) % 4;
Vector2 ofs = ((endpoints[i] - endpoints[prev]).normalized() + ((endpoints[i] - endpoints[next]).normalized())).normalized();
//.........这里部分代码省略.........
示例5: _region_input
void TextureRegionEditor::_region_input(const Ref<InputEvent> &p_input) {
Transform2D mtx;
mtx.elements[2] = -draw_ofs;
mtx.scale_basis(Vector2(draw_zoom, draw_zoom));
Vector2 endpoints[8] = {
mtx.xform(rect.position) + Vector2(-4, -4),
mtx.xform(rect.position + Vector2(rect.size.x / 2, 0)) + Vector2(0, -4),
mtx.xform(rect.position + Vector2(rect.size.x, 0)) + Vector2(4, -4),
mtx.xform(rect.position + Vector2(rect.size.x, rect.size.y / 2)) + Vector2(4, 0),
mtx.xform(rect.position + rect.size) + Vector2(4, 4),
mtx.xform(rect.position + Vector2(rect.size.x / 2, rect.size.y)) + Vector2(0, 4),
mtx.xform(rect.position + Vector2(0, rect.size.y)) + Vector2(-4, 4),
mtx.xform(rect.position + Vector2(0, rect.size.y / 2)) + Vector2(-4, 0)
};
Ref<InputEventMouseButton> mb = p_input;
if (mb.is_valid()) {
if (mb->get_button_index() == BUTTON_LEFT) {
if (mb->is_pressed()) {
if (node_patch9 || obj_styleBox.is_valid()) {
edited_margin = -1;
float margins[4];
if (node_patch9) {
margins[0] = node_patch9->get_patch_margin(MARGIN_TOP);
margins[1] = node_patch9->get_patch_margin(MARGIN_BOTTOM);
margins[2] = node_patch9->get_patch_margin(MARGIN_LEFT);
margins[3] = node_patch9->get_patch_margin(MARGIN_RIGHT);
} else if (obj_styleBox.is_valid()) {
margins[0] = obj_styleBox->get_margin_size(MARGIN_TOP);
margins[1] = obj_styleBox->get_margin_size(MARGIN_BOTTOM);
margins[2] = obj_styleBox->get_margin_size(MARGIN_LEFT);
margins[3] = obj_styleBox->get_margin_size(MARGIN_RIGHT);
}
Vector2 pos[4] = {
mtx.basis_xform(rect.position + Vector2(0, margins[0])) - draw_ofs,
mtx.basis_xform(rect.position + rect.size - Vector2(0, margins[1])) - draw_ofs,
mtx.basis_xform(rect.position + Vector2(margins[2], 0)) - draw_ofs,
mtx.basis_xform(rect.position + rect.size - Vector2(margins[3], 0)) - draw_ofs
};
if (Math::abs(mb->get_position().y - pos[0].y) < 8) {
edited_margin = 0;
prev_margin = margins[0];
} else if (Math::abs(mb->get_position().y - pos[1].y) < 8) {
edited_margin = 1;
prev_margin = margins[1];
} else if (Math::abs(mb->get_position().x - pos[2].x) < 8) {
edited_margin = 2;
prev_margin = margins[2];
} else if (Math::abs(mb->get_position().x - pos[3].x) < 8) {
edited_margin = 3;
prev_margin = margins[3];
}
if (edited_margin >= 0) {
drag_from = Vector2(mb->get_position().x, mb->get_position().y);
drag = true;
}
}
if (edited_margin < 0 && snap_mode == SNAP_AUTOSLICE) {
Vector2 point = mtx.affine_inverse().xform(Vector2(mb->get_position().x, mb->get_position().y));
for (List<Rect2>::Element *E = autoslice_cache.front(); E; E = E->next()) {
if (E->get().has_point(point)) {
rect = E->get();
if (Input::get_singleton()->is_key_pressed(KEY_CONTROL) && !(Input::get_singleton()->is_key_pressed(KEY_SHIFT | KEY_ALT))) {
Rect2 r;
if (node_sprite)
r = node_sprite->get_region_rect();
else if (node_patch9)
r = node_patch9->get_region_rect();
else if (obj_styleBox.is_valid())
r = obj_styleBox->get_region_rect();
else if (atlas_tex.is_valid())
r = atlas_tex->get_region();
rect.expand_to(r.position);
rect.expand_to(r.position + r.size);
}
undo_redo->create_action(TTR("Set Region Rect"));
if (node_sprite) {
undo_redo->add_do_method(node_sprite, "set_region_rect", rect);
undo_redo->add_undo_method(node_sprite, "set_region_rect", node_sprite->get_region_rect());
} else if (node_patch9) {
undo_redo->add_do_method(node_patch9, "set_region_rect", rect);
undo_redo->add_undo_method(node_patch9, "set_region_rect", node_patch9->get_region_rect());
} else if (obj_styleBox.is_valid()) {
undo_redo->add_do_method(obj_styleBox.ptr(), "set_region_rect", rect);
undo_redo->add_undo_method(obj_styleBox.ptr(), "set_region_rect", obj_styleBox->get_region_rect());
} else if (atlas_tex.is_valid()) {
undo_redo->add_do_method(atlas_tex.ptr(), "set_region", rect);
undo_redo->add_undo_method(atlas_tex.ptr(), "set_region", atlas_tex->get_region());
}
undo_redo->add_do_method(edit_draw, "update");
undo_redo->add_undo_method(edit_draw, "update");
undo_redo->commit_action();
break;
}
}
} else if (edited_margin < 0) {
drag_from = mtx.affine_inverse().xform(Vector2(mb->get_position().x, mb->get_position().y));
//.........这里部分代码省略.........
示例6: rect
void Polygon2DEditor::_uv_draw() {
Ref<Texture> base_tex = node->get_texture();
if (base_tex.is_null())
return;
Transform2D mtx;
mtx.elements[2] = -uv_draw_ofs;
mtx.scale_basis(Vector2(uv_draw_zoom, uv_draw_zoom));
VS::get_singleton()->canvas_item_add_set_transform(uv_edit_draw->get_canvas_item(), mtx);
uv_edit_draw->draw_texture(base_tex, Point2());
VS::get_singleton()->canvas_item_add_set_transform(uv_edit_draw->get_canvas_item(), Transform2D());
if (snap_show_grid) {
Size2 s = uv_edit_draw->get_size();
int last_cell;
if (snap_step.x != 0) {
for (int i = 0; i < s.width; i++) {
int cell = Math::fast_ftoi(Math::floor((mtx.affine_inverse().xform(Vector2(i, 0)).x - snap_offset.x) / snap_step.x));
if (i == 0)
last_cell = cell;
if (last_cell != cell)
uv_edit_draw->draw_line(Point2(i, 0), Point2(i, s.height), Color(0.3, 0.7, 1, 0.3));
last_cell = cell;
}
}
if (snap_step.y != 0) {
for (int i = 0; i < s.height; i++) {
int cell = Math::fast_ftoi(Math::floor((mtx.affine_inverse().xform(Vector2(0, i)).y - snap_offset.y) / snap_step.y));
if (i == 0)
last_cell = cell;
if (last_cell != cell)
uv_edit_draw->draw_line(Point2(0, i), Point2(s.width, i), Color(0.3, 0.7, 1, 0.3));
last_cell = cell;
}
}
}
PoolVector<Vector2> uvs = node->get_uv();
Ref<Texture> handle = get_icon("EditorHandle", "EditorIcons");
Rect2 rect(Point2(), mtx.basis_xform(base_tex->get_size()));
rect.expand_to(mtx.basis_xform(uv_edit_draw->get_size()));
for (int i = 0; i < uvs.size(); i++) {
int next = (i + 1) % uvs.size();
uv_edit_draw->draw_line(mtx.xform(uvs[i]), mtx.xform(uvs[next]), Color(0.9, 0.5, 0.5), 2);
uv_edit_draw->draw_texture(handle, mtx.xform(uvs[i]) - handle->get_size() * 0.5);
rect.expand_to(mtx.basis_xform(uvs[i]));
}
rect = rect.grow(200);
updating_uv_scroll = true;
uv_hscroll->set_min(rect.position.x);
uv_hscroll->set_max(rect.position.x + rect.size.x);
uv_hscroll->set_page(uv_edit_draw->get_size().x);
uv_hscroll->set_value(uv_draw_ofs.x);
uv_hscroll->set_step(0.001);
uv_vscroll->set_min(rect.position.y);
uv_vscroll->set_max(rect.position.y + rect.size.y);
uv_vscroll->set_page(uv_edit_draw->get_size().y);
uv_vscroll->set_value(uv_draw_ofs.y);
uv_vscroll->set_step(0.001);
updating_uv_scroll = false;
}