82 lines
3.4 KiB
C++
82 lines
3.4 KiB
C++
#include "EraserTool.hpp"
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#include "DrawingProgram.hpp"
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#include "../MainProgram.hpp"
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#include "../DrawData.hpp"
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EraserTool::EraserTool(DrawingProgram& initDrawP):
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drawP(initDrawP)
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{
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}
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void EraserTool::gui_toolbox() {
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Toolbar& t = drawP.world.main.toolbar;
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t.gui.push_id("eraser tool");
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t.gui.text_label_centered("Eraser");
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t.gui.slider_scalar_field("relwidth", "Size", &drawP.controls.relativeWidth, 3.0f, 40.0f);
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t.gui.pop_id();
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}
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void EraserTool::reset_tool() {
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if(!erasedComponents.empty()) {
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DrawingProgramCache::move_components_from_bvh_nodes_to_set(erasedComponents, erasedBVHNodes);
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drawP.client_erase_set(erasedComponents);
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}
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erasedComponents.clear();
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erasedBVHNodes.clear();
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}
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void EraserTool::tool_update() {
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if(drawP.controls.cursorHoveringOverCanvas)
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drawP.world.main.input.hideCursor = true;
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if(drawP.controls.leftClickHeld) {
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const Vector2f& prevMousePos = drawP.controls.leftClick ? drawP.world.main.input.mouse.pos : drawP.world.main.input.mouse.lastPos;
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SCollision::ColliderCollection<float> cC;
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SCollision::generate_wide_line(cC, prevMousePos, drawP.world.main.input.mouse.pos, drawP.controls.relativeWidth * 2.0f, true);
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auto cCWorld = drawP.world.drawData.cam.c.collider_to_world<SCollision::ColliderCollection<WorldScalar>, SCollision::ColliderCollection<float>>(cC);
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drawP.compCache.traverse_bvh_erase_function(cCWorld.bounds, [&](const auto& bvhNode, auto& comps) {
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if(bvhNode &&
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SCollision::collide(cC, drawP.world.drawData.cam.c.to_space(bvhNode->bounds.min)) &&
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SCollision::collide(cC, drawP.world.drawData.cam.c.to_space(bvhNode->bounds.max)) &&
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SCollision::collide(cC, drawP.world.drawData.cam.c.to_space(bvhNode->bounds.top_right())) &&
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SCollision::collide(cC, drawP.world.drawData.cam.c.to_space(bvhNode->bounds.bottom_left()))) {
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erasedBVHNodes.emplace(bvhNode);
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drawP.compCache.invalidate_cache_at_aabb_before_pos(bvhNode->bounds, 0);
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return true;
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}
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std::erase_if(comps, [&](auto& c) {
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if(c->obj->collides_with(drawP.world.drawData.cam.c, cCWorld, cC, drawP.colliderAllocated)) {
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erasedComponents.emplace(c);
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drawP.compCache.invalidate_cache_at_aabb_before_pos(c->obj->worldAABB.value(), c->obj->collabListInfo.lock()->pos);
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return true;
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}
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return false;
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});
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return false;
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});
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}
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else
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reset_tool();
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}
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bool EraserTool::prevent_undo_or_redo() {
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return drawP.controls.leftClickHeld;
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}
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void EraserTool::draw(SkCanvas* canvas, const DrawData& drawData) {
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if(!drawData.main->toolbar.io->hoverObstructed) {
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SkColor4f c = drawP.world.main.canvasTheme.toolFrontColor;
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c.fA = 0.5f;
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SkPaint linePaint;
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linePaint.setColor4f(c);
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linePaint.setStyle(SkPaint::kStroke_Style);
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linePaint.setStrokeCap(SkPaint::kRound_Cap);
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linePaint.setStrokeWidth(drawP.controls.relativeWidth * 2.0f);
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SkPath erasePath;
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erasePath.moveTo(convert_vec2<SkPoint>(drawData.main->input.mouse.lastPos));
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erasePath.lineTo(convert_vec2<SkPoint>(drawData.main->input.mouse.pos));
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canvas->drawPath(erasePath, linePaint);
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}
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}
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