Initial Commit

src/DrawComponents/DrawEllipse.cpp

@@ -0,0 +1,141 @@
+#include "DrawEllipse.hpp"
+#include "Helpers/ConvertVec.hpp"
+#include "Helpers/SCollision.hpp"
+
+#ifndef IS_SERVER
+#include "../DrawCollision.hpp"
+#endif
+
+DrawComponentType DrawEllipse::get_type() const {
+    return DRAWCOMPONENT_ELLIPSE;
+}
+
+void DrawEllipse::save(cereal::PortableBinaryOutputArchive& a) const {
+    a(d.strokeColor, d.fillColor, d.strokeWidth, d.p1, d.p2, d.fillStrokeMode);
+}
+
+void DrawEllipse::load(cereal::PortableBinaryInputArchive& a) {
+    a(d.strokeColor, d.fillColor, d.strokeWidth, d.p1, d.p2, d.fillStrokeMode);
+}
+
+#ifndef IS_SERVER
+std::shared_ptr<DrawComponent> DrawEllipse::copy() const {
+    auto a = std::make_shared<DrawEllipse>();
+    a->d = d;
+    a->coords = coords;
+    return a;
+}
+
+void DrawEllipse::update_from_delayed_ptr() {
+    std::shared_ptr<DrawEllipse> newPtr = std::static_pointer_cast<DrawEllipse>(delayedUpdatePtr);
+    d = newPtr->d;
+}
+
+void DrawEllipse::draw(SkCanvas* canvas, const DrawData& drawData) {
+    if(drawSetupData.shouldDraw) {
+        canvas->save();
+        canvas_do_calculated_transform(canvas);
+        if(d.fillStrokeMode == 0 || d.fillStrokeMode == 2) {
+            SkPaint p;
+            p.setStyle(SkPaint::kFill_Style);
+            p.setColor4f(convert_vec4<SkColor4f>(d.fillColor));
+            canvas->drawPath(ellipsePath, p);
+        }
+        if(d.fillStrokeMode == 1 || d.fillStrokeMode == 2) {
+            SkPaint p;
+            p.setStyle(SkPaint::kStroke_Style);
+            p.setColor4f(convert_vec4<SkColor4f>(d.strokeColor));
+            p.setStrokeWidth(d.strokeWidth);
+            canvas->drawPath(ellipsePath, p);
+        }
+        canvas->restore();
+    }
+}
+
+void DrawEllipse::create_draw_data() {
+    ellipsePath = SkPath();
+    SkRect newRect = SkRect::MakeLTRB(d.p1.x(), d.p1.y(), d.p2.x(), d.p2.y());
+    ellipsePath.addOval(newRect);
+}
+
+void DrawEllipse::initialize_draw_data(DrawingProgram& drawP) {
+    create_draw_data();
+}
+
+void DrawEllipse::update(DrawingProgram& drawP) {
+}
+
+bool DrawEllipse::collides_within_coords(const SCollision::ColliderCollection<float>& checkAgainst, bool colliderAllocated) {
+    return collisionTree.is_collide(checkAgainst);
+}
+
+void DrawEllipse::create_collider(bool colliderAllocated) {
+    using namespace SCollision;
+    ColliderCollection<float> strokeObjects;
+
+    if(d.fillStrokeMode == 0) {
+        Vector2f ellipseCenter = (d.p1 + d.p2) * 0.5;
+        float a = ellipseCenter.x() - d.p1.x();
+        float b = ellipseCenter.y() - d.p1.y();
+        Vector2f prevPoint = ellipseCenter + Vector2f{a * std::cos(0), b * std::sin(0)};
+        unsigned numOfSegments = 20;
+        float segmentStep = 1.0 / numOfSegments;
+        float t = 0.0;
+        for(unsigned i = 0; i <= numOfSegments; i++) {
+            Vector2f nextPoint = ellipseCenter + Vector2f{a * std::cos(t), b * std::sin(t)};
+            strokeObjects.triangle.emplace_back(ellipseCenter, prevPoint, nextPoint);
+            prevPoint = nextPoint;
+            t += segmentStep * std::numbers::pi * 2.0;
+        }
+    }
+    else if(d.fillStrokeMode == 1) {
+        std::vector<Vector2f> points;
+
+        Vector2f ellipseCenter = (d.p1 + d.p2) * 0.5;
+        float a = ellipseCenter.x() - d.p1.x();
+        float b = ellipseCenter.y() - d.p1.y();
+        unsigned numOfSegments = 40;
+        float segmentStep = 1.0 / numOfSegments;
+        float t = 0.0;
+        for(unsigned i = 0; i < numOfSegments; i++) {
+            points.emplace_back(ellipseCenter + Vector2f{a * std::cos(t), b * std::sin(t)});
+            t += segmentStep * std::numbers::pi * 2.0;
+        }
+        generate_polyline(strokeObjects, points, d.strokeWidth, true);
+
+    }
+    else if(d.fillStrokeMode == 2) {
+        float strokeRadius = d.strokeWidth * 0.5f;
+        Vector2f wNewP1 = d.p1 - Vector2f{strokeRadius, strokeRadius};
+        Vector2f wNewP2 = d.p2 + Vector2f{strokeRadius, strokeRadius};
+        Vector2f ellipseCenter = (wNewP1 + wNewP2) * 0.5;
+        float a = ellipseCenter.x() - wNewP1.x();
+        float b = ellipseCenter.y() - wNewP1.y();
+        Vector2f prevPoint = ellipseCenter + Vector2f{a * std::cos(0), b * std::sin(0)};
+        unsigned numOfSegments = 20;
+        float segmentStep = 1.0 / numOfSegments;
+        float t = 0.0;
+        for(unsigned i = 0; i <= numOfSegments; i++) {
+            Vector2f nextPoint = ellipseCenter + Vector2f{a * std::cos(t), b * std::sin(t)};
+            strokeObjects.triangle.emplace_back(ellipseCenter, prevPoint, nextPoint);
+            prevPoint = nextPoint;
+            t += segmentStep * std::numbers::pi * 2.0;
+        }
+    }
+
+    collisionTree.clear();
+    collisionTree.calculate_bvh_recursive(strokeObjects);
+    calculate_world_bounds();
+}
+
+void DrawEllipse::free_collider() {
+}
+
+void DrawEllipse::allocate_collider() {
+}
+
+SCollision::AABB<float> DrawEllipse::get_obj_coord_bounds() const {
+    return collisionTree.objects.bounds;
+}
+
+#endif