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Line2D texture stretch mode

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Prototype for stretching the texture across the whole line.
Fixed end cap tile mode.
This commit is contained in:
Jorn Van denbussche 2018-07-16 14:31:19 +02:00
parent 28aa9a1d6d
commit d7aa3e33c8
4 changed files with 16 additions and 5 deletions
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3
doc/classes/Line2D.xml
View file

@ -117,5 +117,8 @@
<constant name="LINE_TEXTURE_TILE" value="1" enum="LineTextureMode">
Tiles the texture over the line. The texture need to be imported with Repeat Enabled for it to work properly.
</constant>
<constant name="LINE_TEXTURE_STRETCH" value="2" enum="LineTextureMode">
Stretches the texture across the line. Import the texture with Repeat Disabled for best results.
</constant>
</constants>
</class>

3
scene/2d/line_2d.cpp
View file

@ -349,7 +349,7 @@ void Line2D::_bind_methods() {
ADD_GROUP("Fill", "");
ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT, "gradient", PROPERTY_HINT_RESOURCE_TYPE, "Gradient"), "set_gradient", "get_gradient");
ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_texture", "get_texture");
ADD_PROPERTYNZ(PropertyInfo(Variant::INT, "texture_mode", PROPERTY_HINT_ENUM, "None,Tile"), "set_texture_mode", "get_texture_mode");
ADD_PROPERTYNZ(PropertyInfo(Variant::INT, "texture_mode", PROPERTY_HINT_ENUM, "None,Tile,Stretch"), "set_texture_mode", "get_texture_mode");
ADD_GROUP("Capping", "");
ADD_PROPERTYNZ(PropertyInfo(Variant::INT, "joint_mode", PROPERTY_HINT_ENUM, "Sharp,Bevel,Round"), "set_joint_mode", "get_joint_mode");
ADD_PROPERTYNZ(PropertyInfo(Variant::INT, "begin_cap_mode", PROPERTY_HINT_ENUM, "None,Box,Round"), "set_begin_cap_mode", "get_begin_cap_mode");
@ -368,6 +368,7 @@ void Line2D::_bind_methods() {
BIND_ENUM_CONSTANT(LINE_TEXTURE_NONE);
BIND_ENUM_CONSTANT(LINE_TEXTURE_TILE);
BIND_ENUM_CONSTANT(LINE_TEXTURE_STRETCH);
ClassDB::bind_method(D_METHOD("_gradient_changed"), &Line2D::_gradient_changed);
}

4
scene/2d/line_2d.h
View file

@ -52,8 +52,8 @@ public:
enum LineTextureMode {
LINE_TEXTURE_NONE = 0,
LINE_TEXTURE_TILE
// TODO STRETCH mode
LINE_TEXTURE_TILE,
LINE_TEXTURE_STRETCH
};
Line2D();

11
scene/2d/line_builder.cpp
View file

@ -146,7 +146,9 @@ void LineBuilder::build() {
float current_distance1 = 0.f;
float total_distance = 0.f;
_interpolate_color = gradient != NULL;
bool distance_required = _interpolate_color || texture_mode == Line2D::LINE_TEXTURE_TILE;
bool distance_required = _interpolate_color ||
texture_mode == Line2D::LINE_TEXTURE_TILE ||
texture_mode == Line2D::LINE_TEXTURE_STRETCH;
if (distance_required)
total_distance = calculate_total_distance(points);
if (_interpolate_color)
@ -292,6 +294,9 @@ void LineBuilder::build() {
if (texture_mode == Line2D::LINE_TEXTURE_TILE) {
uvx0 = current_distance0 / (width * tile_aspect);
uvx1 = current_distance1 / (width * tile_aspect);
} else if (texture_mode == Line2D::LINE_TEXTURE_STRETCH) {
uvx0 = current_distance0 / total_distance;
uvx1 = current_distance1 / total_distance;
}
strip_add_quad(pos_up1, pos_down1, color1, uvx1);
@ -378,6 +383,8 @@ void LineBuilder::build() {
}
if (texture_mode == Line2D::LINE_TEXTURE_TILE) {
uvx1 = current_distance1 / (width * tile_aspect);
} else if (texture_mode == Line2D::LINE_TEXTURE_STRETCH) {
uvx1 = current_distance1 / total_distance;
}
strip_add_quad(pos_up1, pos_down1, color1, uvx1);
@ -386,7 +393,7 @@ void LineBuilder::build() {
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));
new_arc(pos1, pos_up1 - pos1, Math_PI, color, Rect2(uvx1 - 0.5f / tile_aspect, 0.f, 1.0f / tile_aspect, 1.f));
}
}