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Florian Rival
76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
/**
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GDevelop - Draggable Behavior Extension
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Copyright (c) 2014-2016 Florian Rival (Florian.Rival@gmail.com)
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This project is released under the MIT License.
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*/
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#include "DraggableRuntimeBehavior.h"
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#include <SFML/Graphics.hpp>
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#include <iostream>
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#include <memory>
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#include "GDCpp/Runtime/CommonTools.h"
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#include "GDCpp/Runtime/Project/Layout.h"
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#include "GDCpp/Runtime/RuntimeLayer.h"
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#include "GDCpp/Runtime/RuntimeObject.h"
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#include "GDCpp/Runtime/RuntimeScene.h"
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#include "GDCpp/Runtime/Serialization/SerializerElement.h"
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bool DraggableRuntimeBehavior::somethingDragged = false;
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bool DraggableRuntimeBehavior::leftPressedLastFrame = false;
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DraggableRuntimeBehavior::DraggableRuntimeBehavior(
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const gd::SerializerElement& behaviorContent)
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: RuntimeBehavior(behaviorContent), dragged(false) {}
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void DraggableRuntimeBehavior::DoStepPreEvents(RuntimeScene& scene) {
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// Begin drag ?
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if (!dragged && scene.GetInputManager().IsMouseButtonPressed("Left") &&
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!leftPressedLastFrame && !somethingDragged) {
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RuntimeLayer& theLayer = scene.GetRuntimeLayer(object->GetLayer());
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for (std::size_t cameraIndex = 0; cameraIndex < theLayer.GetCameraCount();
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++cameraIndex) {
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sf::Vector2f mousePos = scene.renderWindow->mapPixelToCoords(
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scene.GetInputManager().GetMousePosition(),
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theLayer.GetCamera(cameraIndex).GetSFMLView());
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if (object->GetDrawableX() <= mousePos.x &&
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object->GetDrawableX() + object->GetWidth() >= mousePos.x &&
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object->GetDrawableY() <= mousePos.y &&
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object->GetDrawableY() + object->GetHeight() >= mousePos.y) {
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dragged = true;
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somethingDragged = true;
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xOffset = mousePos.x - object->GetX();
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yOffset = mousePos.y - object->GetY();
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dragCameraIndex = cameraIndex;
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break;
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}
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}
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}
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// End dragging ?
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else if (!scene.GetInputManager().IsMouseButtonPressed("Left")) {
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dragged = false;
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somethingDragged = false;
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}
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// Being dragging ?
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if (dragged) {
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RuntimeLayer& theLayer = scene.GetRuntimeLayer(object->GetLayer());
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sf::Vector2f mousePos = scene.renderWindow->mapPixelToCoords(
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scene.GetInputManager().GetMousePosition(),
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theLayer.GetCamera(dragCameraIndex).GetSFMLView());
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object->SetX(mousePos.x - xOffset);
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object->SetY(mousePos.y - yOffset);
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}
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}
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void DraggableRuntimeBehavior::DoStepPostEvents(RuntimeScene& scene) {
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leftPressedLastFrame = scene.GetInputManager().IsMouseButtonPressed("Left");
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}
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void DraggableRuntimeBehavior::OnDeActivate() {
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if (dragged) somethingDragged = false;
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dragged = false;
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}
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