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add responsive arrows when the size is very small + fix a regression: missing a translation on the line

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This commit is contained in:
fabriceci 2021-03-05 21:58:21 +01:00
parent 4de0768cdb
commit af041adb06
1 changed files with 24 additions and 19 deletions
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43
scene/2d/ray_cast_2d.cpp
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@ -208,8 +208,6 @@ void RayCast2D::_update_raycast_state() {
}
void RayCast2D::_draw_debug_shape() {
float tsize = 6.0;
bool draw_arrow = target_position.length() >= tsize;
Color draw_col = collided ? Color(1.0, 0.01, 0) : get_tree()->get_debug_collisions_color();
if (!enabled) {
float g = draw_col.get_v();
@ -218,26 +216,33 @@ void RayCast2D::_draw_debug_shape() {
draw_col.b = g;
}
draw_line(Vector2(), target_position - Vector2(0, tsize * draw_arrow), draw_col, 1.4);
// Draw an arrow indicating where the RayCast is pointing to
if (draw_arrow) {
Transform2D xf;
xf.rotate(target_position.angle());
xf.translate(Vector2(target_position.length() - tsize, 0));
const float max_arrow_size = 6;
const float line_width = 1.4;
bool no_line = target_position.length() < line_width;
float arrow_size = CLAMP(target_position.length() * 2 / 3, line_width, max_arrow_size);
Vector<Vector2> pts;
pts.push_back(xf.xform(Vector2(tsize, 0)));
pts.push_back(xf.xform(Vector2(0, 0.5 * tsize)));
pts.push_back(xf.xform(Vector2(0, -0.5 * tsize)));
Vector<Color> cols;
for (int i = 0; i < 3; i++) {
cols.push_back(draw_col);
}
draw_primitive(pts, cols, Vector<Vector2>());
if (no_line) {
arrow_size = target_position.length();
} else {
draw_line(Vector2(), target_position - target_position.normalized() * arrow_size, draw_col, line_width);
}
Transform2D xf;
xf.rotate(target_position.angle());
xf.translate(Vector2(no_line ? 0 : target_position.length() - arrow_size, 0));
Vector<Vector2> pts;
pts.push_back(xf.xform(Vector2(arrow_size, 0)));
pts.push_back(xf.xform(Vector2(0, 0.5 * arrow_size)));
pts.push_back(xf.xform(Vector2(0, -0.5 * arrow_size)));
Vector<Color> cols;
for (int i = 0; i < 3; i++) {
cols.push_back(draw_col);
}
draw_primitive(pts, cols, Vector<Vector2>());
}
void RayCast2D::force_raycast_update() {