diff options
Diffstat (limited to 'scene/2d/collision_polygon_2d.cpp')
| -rw-r--r-- | scene/2d/collision_polygon_2d.cpp | 80 |
1 files changed, 50 insertions, 30 deletions
diff --git a/scene/2d/collision_polygon_2d.cpp b/scene/2d/collision_polygon_2d.cpp index 64d82d715c..38198c496e 100644 --- a/scene/2d/collision_polygon_2d.cpp +++ b/scene/2d/collision_polygon_2d.cpp @@ -5,8 +5,8 @@ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ -/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ @@ -36,18 +36,18 @@ #include "scene/resources/concave_polygon_shape_2d.h" #include "scene/resources/convex_polygon_shape_2d.h" -#include "thirdparty/misc/triangulator.h" +#include "thirdparty/misc/polypartition.h" void CollisionPolygon2D::_build_polygon() { parent->shape_owner_clear_shapes(owner_id); - if (polygon.size() == 0) { - return; - } - bool solids = build_mode == BUILD_SOLIDS; if (solids) { + if (polygon.size() < 3) { + return; + } + //here comes the sun, lalalala //decompose concave into multiple convex polygons and add them Vector<Vector<Vector2>> decomp = _decompose_in_convex(); @@ -58,6 +58,10 @@ void CollisionPolygon2D::_build_polygon() { } } else { + if (polygon.size() < 2) { + return; + } + Ref<ConcavePolygonShape2D> concave = memnew(ConcavePolygonShape2D); Vector<Vector2> segments; @@ -132,25 +136,28 @@ void CollisionPolygon2D::_notification(int p_what) { break; } - for (int i = 0; i < polygon.size(); i++) { + int polygon_count = polygon.size(); + for (int i = 0; i < polygon_count; i++) { Vector2 p = polygon[i]; - Vector2 n = polygon[(i + 1) % polygon.size()]; + Vector2 n = polygon[(i + 1) % polygon_count]; // draw line with width <= 1, so it does not scale with zoom and break pixel exact editing draw_line(p, n, Color(0.9, 0.2, 0.0, 0.8), 1); } + + if (polygon_count > 2) { #define DEBUG_DECOMPOSE #if defined(TOOLS_ENABLED) && defined(DEBUG_DECOMPOSE) + Vector<Vector<Vector2>> decomp = _decompose_in_convex(); - Vector<Vector<Vector2>> decomp = _decompose_in_convex(); - - Color c(0.4, 0.9, 0.1); - for (int i = 0; i < decomp.size(); i++) { - c.set_hsv(Math::fmod(c.get_h() + 0.738, 1), c.get_s(), c.get_v(), 0.5); - draw_colored_polygon(decomp[i], c); - } + Color c(0.4, 0.9, 0.1); + for (int i = 0; i < decomp.size(); i++) { + c.set_hsv(Math::fmod(c.get_h() + 0.738, 1), c.get_s(), c.get_v(), 0.5); + draw_colored_polygon(decomp[i], c); + } #else - draw_colored_polygon(polygon, get_tree()->get_debug_collisions_color()); + draw_colored_polygon(polygon, get_tree()->get_debug_collisions_color()); #endif + } if (one_way_collision) { Color dcol = get_tree()->get_debug_collisions_color(); //0.9,0.2,0.2,0.4); @@ -158,7 +165,7 @@ void CollisionPolygon2D::_notification(int p_what) { Vector2 line_to(0, 20); draw_line(Vector2(), line_to, dcol, 3); Vector<Vector2> pts; - float tsize = 8; + real_t tsize = 8; pts.push_back(line_to + (Vector2(0, tsize))); pts.push_back(line_to + (Vector2(Math_SQRT12 * tsize, 0))); pts.push_back(line_to + (Vector2(-Math_SQRT12 * tsize, 0))); @@ -194,6 +201,7 @@ void CollisionPolygon2D::set_polygon(const Vector<Point2> &p_polygon) { if (parent) { _build_polygon(); + _update_in_shape_owner(); } update(); update_configuration_warning(); @@ -208,7 +216,10 @@ void CollisionPolygon2D::set_build_mode(BuildMode p_mode) { build_mode = p_mode; if (parent) { _build_polygon(); + _update_in_shape_owner(); } + update(); + update_configuration_warning(); } CollisionPolygon2D::BuildMode CollisionPolygon2D::get_build_mode() const { @@ -233,17 +244,33 @@ String CollisionPolygon2D::get_configuration_warning() const { String warning = Node2D::get_configuration_warning(); if (!Object::cast_to<CollisionObject2D>(get_parent())) { - if (!warning.empty()) { + if (!warning.is_empty()) { warning += "\n\n"; } warning += TTR("CollisionPolygon2D only serves to provide a collision shape to a CollisionObject2D derived node. Please only use it as a child of Area2D, StaticBody2D, RigidBody2D, KinematicBody2D, etc. to give them a shape."); } - if (polygon.empty()) { - if (!warning.empty()) { + int polygon_count = polygon.size(); + if (polygon_count == 0) { + if (!warning.is_empty()) { warning += "\n\n"; } warning += TTR("An empty CollisionPolygon2D has no effect on collision."); + } else { + bool solids = build_mode == BUILD_SOLIDS; + if (solids) { + if (polygon_count < 3) { + if (!warning.is_empty()) { + warning += "\n\n"; + } + warning += TTR("Invalid polygon. At least 3 points are needed in 'Solids' build mode."); + } + } else if (polygon_count < 2) { + if (!warning.is_empty()) { + warning += "\n\n"; + } + warning += TTR("Invalid polygon. At least 2 points are needed in 'Segments' build mode."); + } } return warning; @@ -273,14 +300,14 @@ bool CollisionPolygon2D::is_one_way_collision_enabled() const { return one_way_collision; } -void CollisionPolygon2D::set_one_way_collision_margin(float p_margin) { +void CollisionPolygon2D::set_one_way_collision_margin(real_t p_margin) { one_way_collision_margin = p_margin; if (parent) { parent->shape_owner_set_one_way_collision_margin(owner_id, one_way_collision_margin); } } -float CollisionPolygon2D::get_one_way_collision_margin() const { +real_t CollisionPolygon2D::get_one_way_collision_margin() const { return one_way_collision_margin; } @@ -308,12 +335,5 @@ void CollisionPolygon2D::_bind_methods() { } CollisionPolygon2D::CollisionPolygon2D() { - aabb = Rect2(-10, -10, 20, 20); - build_mode = BUILD_SOLIDS; set_notify_local_transform(true); - parent = nullptr; - owner_id = 0; - disabled = false; - one_way_collision = false; - one_way_collision_margin = 1.0; } |