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Diffstat (limited to 'scene/2d/line_builder.cpp')
-rw-r--r--scene/2d/line_builder.cpp109
1 files changed, 57 insertions, 52 deletions
diff --git a/scene/2d/line_builder.cpp b/scene/2d/line_builder.cpp
index 9eea5191b9..4873c47827 100644
--- a/scene/2d/line_builder.cpp
+++ b/scene/2d/line_builder.cpp
@@ -92,14 +92,14 @@ static inline Vector2 interpolate(const Rect2 &r, const Vector2 &v) {
//----------------------------------------------------------------------------
LineBuilder::LineBuilder() {
- joint_mode = LINE_JOINT_SHARP;
+ joint_mode = Line2D::LINE_JOINT_SHARP;
width = 10;
default_color = Color(0.4, 0.5, 1);
gradient = NULL;
sharp_limit = 2.f;
round_precision = 8;
- begin_cap_mode = LINE_CAP_NONE;
- end_cap_mode = LINE_CAP_NONE;
+ begin_cap_mode = Line2D::LINE_CAP_NONE;
+ end_cap_mode = Line2D::LINE_CAP_NONE;
_interpolate_color = false;
_last_index[0] = 0;
@@ -139,9 +139,9 @@ void LineBuilder::build() {
float current_distance0 = 0.f;
float current_distance1 = 0.f;
- float total_distance;
+ float total_distance = 0.f;
_interpolate_color = gradient != NULL;
- bool distance_required = _interpolate_color || texture_mode == LINE_TEXTURE_TILE;
+ bool distance_required = _interpolate_color || texture_mode == Line2D::LINE_TEXTURE_TILE;
if (distance_required)
total_distance = calculate_total_distance(points);
if (_interpolate_color)
@@ -153,7 +153,7 @@ void LineBuilder::build() {
float uvx1 = 0.f;
// Begin cap
- if (begin_cap_mode == LINE_CAP_BOX) {
+ if (begin_cap_mode == Line2D::LINE_CAP_BOX) {
// Push back first vertices a little bit
pos_up0 -= f0 * hw;
pos_down0 -= f0 * hw;
@@ -161,8 +161,8 @@ void LineBuilder::build() {
total_distance += width;
current_distance0 += hw;
current_distance1 = current_distance0;
- } else if (begin_cap_mode == LINE_CAP_ROUND) {
- if (texture_mode == LINE_TEXTURE_TILE) {
+ } else if (begin_cap_mode == Line2D::LINE_CAP_ROUND) {
+ if (texture_mode == Line2D::LINE_TEXTURE_TILE) {
uvx0 = 0.5f;
}
new_arc(pos0, pos_up0 - pos0, -Math_PI, color0, Rect2(0.f, 0.f, 1.f, 1.f));
@@ -173,13 +173,15 @@ void LineBuilder::build() {
strip_begin(pos_up0, pos_down0, color0, uvx0);
- // pos_up0 ------------- pos_up1 --------------------
- // | |
- // pos0 - - - - - - - - - pos1 - - - - - - - - - pos2
- // | |
- // pos_down0 ------------ pos_down1 ------------------
- //
- // i-1 i i+1
+ /*
+ * pos_up0 ------------- pos_up1 --------------------
+ * | |
+ * pos0 - - - - - - - - - pos1 - - - - - - - - - pos2
+ * | |
+ * pos_down0 ------------ pos_down1 ------------------
+ *
+ * i-1 i i+1
+ */
// http://labs.hyperandroid.com/tag/opengl-lines
// (not the same implementation but visuals help a lot)
@@ -206,17 +208,19 @@ void LineBuilder::build() {
inner_normal1 = -u1 * hw;
}
- // ---------------------------
- // /
- // 0 / 1
- // / /
- // --------------------x------ /
- // / / (here shown with orientation == DOWN)
- // / /
- // / /
- // / /
- // 2 /
- // /
+ /*
+ * ---------------------------
+ * /
+ * 0 / 1
+ * / /
+ * --------------------x------ /
+ * / / (here shown with orientation == DOWN)
+ * / /
+ * / /
+ * / /
+ * 2 /
+ * /
+ */
// Find inner intersection at the joint
Vector2 corner_pos_in, corner_pos_out;
@@ -243,15 +247,15 @@ void LineBuilder::build() {
corner_pos_down = corner_pos_in;
}
- LineJointMode current_joint_mode = joint_mode;
+ Line2D::LineJointMode current_joint_mode = joint_mode;
Vector2 pos_up1, pos_down1;
if (intersection_result == SEGMENT_INTERSECT) {
// Fallback on bevel if sharp angle is too high (because it would produce very long miters)
- if (current_joint_mode == LINE_JOINT_SHARP && corner_pos_out.distance_squared_to(pos1) / hw_sq > sharp_limit_sq) {
- current_joint_mode = LINE_JOINT_BEVEL;
+ if (current_joint_mode == Line2D::LINE_JOINT_SHARP && corner_pos_out.distance_squared_to(pos1) / hw_sq > sharp_limit_sq) {
+ current_joint_mode = Line2D::LINE_JOINT_BEVEL;
}
- if (current_joint_mode == LINE_JOINT_SHARP) {
+ if (current_joint_mode == Line2D::LINE_JOINT_SHARP) {
// In this case, we won't create joint geometry,
// The previous and next line quads will directly share an edge.
pos_up1 = corner_pos_up;
@@ -280,7 +284,7 @@ void LineBuilder::build() {
if (_interpolate_color) {
color1 = gradient->get_color_at_offset(current_distance1 / total_distance);
}
- if (texture_mode == LINE_TEXTURE_TILE) {
+ if (texture_mode == Line2D::LINE_TEXTURE_TILE) {
uvx0 = current_distance0 / width;
uvx1 = current_distance1 / width;
}
@@ -294,7 +298,7 @@ void LineBuilder::build() {
pos0 = pos1;
current_distance0 = current_distance1;
if (intersection_result == SEGMENT_INTERSECT) {
- if (current_joint_mode == LINE_JOINT_SHARP) {
+ if (current_joint_mode == Line2D::LINE_JOINT_SHARP) {
pos_up0 = pos_up1;
pos_down0 = pos_down1;
} else {
@@ -313,15 +317,16 @@ void LineBuilder::build() {
// From this point, bu0 and bd0 concern the next segment
// Add joint geometry
- if (current_joint_mode != LINE_JOINT_SHARP) {
+ if (current_joint_mode != Line2D::LINE_JOINT_SHARP) {
- // ________________ cbegin
- // / \
- // / \
- // ____________/_ _ _\ cend
- // | |
- // | |
- // | |
+ /* ________________ cbegin
+ * / \
+ * / \
+ * ____________/_ _ _\ cend
+ * | |
+ * | |
+ * | |
+ */
Vector2 cbegin, cend;
if (orientation == UP) {
@@ -332,9 +337,9 @@ void LineBuilder::build() {
cend = pos_up0;
}
- if (current_joint_mode == LINE_JOINT_BEVEL) {
+ if (current_joint_mode == Line2D::LINE_JOINT_BEVEL) {
strip_add_tri(cend, orientation);
- } else if (current_joint_mode == LINE_JOINT_ROUND) {
+ } else if (current_joint_mode == Line2D::LINE_JOINT_ROUND) {
Vector2 vbegin = cbegin - pos1;
Vector2 vend = cend - pos1;
strip_add_arc(pos1, vbegin.angle_to(vend), orientation);
@@ -355,7 +360,7 @@ void LineBuilder::build() {
Vector2 pos_down1 = pos1 - u0 * hw;
// End cap (box)
- if (end_cap_mode == LINE_CAP_BOX) {
+ if (end_cap_mode == Line2D::LINE_CAP_BOX) {
pos_up1 += f0 * hw;
pos_down1 += f0 * hw;
}
@@ -366,14 +371,14 @@ void LineBuilder::build() {
if (_interpolate_color) {
color1 = gradient->get_color(gradient->get_points_count() - 1);
}
- if (texture_mode == LINE_TEXTURE_TILE) {
+ if (texture_mode == Line2D::LINE_TEXTURE_TILE) {
uvx1 = current_distance1 / width;
}
strip_add_quad(pos_up1, pos_down1, color1, uvx1);
// End cap (round)
- if (end_cap_mode == LINE_CAP_ROUND) {
+ if (end_cap_mode == Line2D::LINE_CAP_ROUND) {
// Note: color is not used in case we don't interpolate...
Color color = _interpolate_color ? gradient->get_color(gradient->get_points_count() - 1) : Color(0, 0, 0);
new_arc(pos1, pos_up1 - pos1, Math_PI, color, Rect2(uvx1 - 0.5f, 0.f, 1.f, 1.f));
@@ -391,7 +396,7 @@ void LineBuilder::strip_begin(Vector2 up, Vector2 down, Color color, float uvx)
colors.push_back(color);
}
- if (texture_mode != LINE_TEXTURE_NONE) {
+ if (texture_mode != Line2D::LINE_TEXTURE_NONE) {
uvs.push_back(Vector2(uvx, 0.f));
uvs.push_back(Vector2(uvx, 1.f));
}
@@ -415,7 +420,7 @@ void LineBuilder::strip_new_quad(Vector2 up, Vector2 down, Color color, float uv
colors.push_back(color);
}
- if (texture_mode != LINE_TEXTURE_NONE) {
+ if (texture_mode != Line2D::LINE_TEXTURE_NONE) {
uvs.push_back(uvs[_last_index[UP]]);
uvs.push_back(uvs[_last_index[DOWN]]);
uvs.push_back(Vector2(uvx, UP));
@@ -444,7 +449,7 @@ void LineBuilder::strip_add_quad(Vector2 up, Vector2 down, Color color, float uv
colors.push_back(color);
}
- if (texture_mode != LINE_TEXTURE_NONE) {
+ if (texture_mode != Line2D::LINE_TEXTURE_NONE) {
uvs.push_back(Vector2(uvx, 0.f));
uvs.push_back(Vector2(uvx, 1.f));
}
@@ -471,7 +476,7 @@ void LineBuilder::strip_add_tri(Vector2 up, Orientation orientation) {
Orientation opposite_orientation = orientation == UP ? DOWN : UP;
- if (texture_mode != LINE_TEXTURE_NONE) {
+ if (texture_mode != Line2D::LINE_TEXTURE_NONE) {
// UVs are just one slice of the texture all along
// (otherwise we can't share the bottom vertice)
uvs.push_back(uvs[_last_index[opposite_orientation]]);
@@ -536,7 +541,7 @@ void LineBuilder::new_arc(Vector2 center, Vector2 vbegin, float angle_delta, Col
vertices.push_back(center);
if (_interpolate_color)
colors.push_back(color);
- if (texture_mode != LINE_TEXTURE_NONE)
+ if (texture_mode != Line2D::LINE_TEXTURE_NONE)
uvs.push_back(interpolate(uv_rect, Vector2(0.5f, 0.5f)));
// Arc vertices
@@ -547,7 +552,7 @@ void LineBuilder::new_arc(Vector2 center, Vector2 vbegin, float angle_delta, Col
vertices.push_back(rpos);
if (_interpolate_color)
colors.push_back(color);
- if (texture_mode != LINE_TEXTURE_NONE) {
+ if (texture_mode != Line2D::LINE_TEXTURE_NONE) {
Vector2 tsc = Vector2(Math::cos(tt), Math::sin(tt));
uvs.push_back(interpolate(uv_rect, 0.5f * (tsc + Vector2(1.f, 1.f))));
tt += angle_step;
@@ -560,7 +565,7 @@ void LineBuilder::new_arc(Vector2 center, Vector2 vbegin, float angle_delta, Col
vertices.push_back(rpos);
if (_interpolate_color)
colors.push_back(color);
- if (texture_mode != LINE_TEXTURE_NONE) {
+ if (texture_mode != Line2D::LINE_TEXTURE_NONE) {
tt = tt_begin + angle_delta;
Vector2 tsc = Vector2(Math::cos(tt), Math::sin(tt));
uvs.push_back(interpolate(uv_rect, 0.5f * (tsc + Vector2(1.f, 1.f))));
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-10 14:53:35 +0000