185 lines
8.9 KiB
C++
185 lines
8.9 KiB
C++
//
|
|
// Copyright (c) 2008-2020 the Urho3D project.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
// THE SOFTWARE.
|
|
//
|
|
|
|
#pragma once
|
|
|
|
#include "Sample.h"
|
|
|
|
namespace Urho3D
|
|
{
|
|
|
|
class Drawable;
|
|
class Node;
|
|
class Scene;
|
|
|
|
}
|
|
|
|
/// CrowdNavigation example.
|
|
/// This sample demonstrates:
|
|
/// - Generating a dynamic navigation mesh into the scene
|
|
/// - Performing path queries to the navigation mesh
|
|
/// - Adding and removing obstacles/agents at runtime
|
|
/// - Raycasting drawable components
|
|
/// - Crowd movement management
|
|
/// - Accessing crowd agents with the crowd manager
|
|
/// - Using off-mesh connections to make boxes climbable
|
|
/// - Using agents to simulate moving obstacles
|
|
class CrowdNavigation : public Sample
|
|
{
|
|
URHO3D_OBJECT(CrowdNavigation, Sample);
|
|
|
|
public:
|
|
/// Construct.
|
|
explicit CrowdNavigation(Context* context);
|
|
|
|
/// Setup after engine initialization and before running the main loop.
|
|
void Start() override;
|
|
|
|
protected:
|
|
/// Return XML patch instructions for screen joystick layout for a specific sample app, if any.
|
|
String GetScreenJoystickPatchString() const override { return
|
|
"<patch>"
|
|
" <add sel=\"/element\">"
|
|
" <element type=\"Button\">"
|
|
" <attribute name=\"Name\" value=\"Button3\" />"
|
|
" <attribute name=\"Position\" value=\"-120 -120\" />"
|
|
" <attribute name=\"Size\" value=\"96 96\" />"
|
|
" <attribute name=\"Horiz Alignment\" value=\"Right\" />"
|
|
" <attribute name=\"Vert Alignment\" value=\"Bottom\" />"
|
|
" <attribute name=\"Texture\" value=\"Texture2D;Textures/TouchInput.png\" />"
|
|
" <attribute name=\"Image Rect\" value=\"96 0 192 96\" />"
|
|
" <attribute name=\"Hover Image Offset\" value=\"0 0\" />"
|
|
" <attribute name=\"Pressed Image Offset\" value=\"0 0\" />"
|
|
" <element type=\"Text\">"
|
|
" <attribute name=\"Name\" value=\"Label\" />"
|
|
" <attribute name=\"Horiz Alignment\" value=\"Center\" />"
|
|
" <attribute name=\"Vert Alignment\" value=\"Center\" />"
|
|
" <attribute name=\"Color\" value=\"0 0 0 1\" />"
|
|
" <attribute name=\"Text\" value=\"Spawn\" />"
|
|
" </element>"
|
|
" <element type=\"Text\">"
|
|
" <attribute name=\"Name\" value=\"KeyBinding\" />"
|
|
" <attribute name=\"Text\" value=\"LSHIFT\" />"
|
|
" </element>"
|
|
" <element type=\"Text\">"
|
|
" <attribute name=\"Name\" value=\"MouseButtonBinding\" />"
|
|
" <attribute name=\"Text\" value=\"LEFT\" />"
|
|
" </element>"
|
|
" </element>"
|
|
" <element type=\"Button\">"
|
|
" <attribute name=\"Name\" value=\"Button4\" />"
|
|
" <attribute name=\"Position\" value=\"-120 -12\" />"
|
|
" <attribute name=\"Size\" value=\"96 96\" />"
|
|
" <attribute name=\"Horiz Alignment\" value=\"Right\" />"
|
|
" <attribute name=\"Vert Alignment\" value=\"Bottom\" />"
|
|
" <attribute name=\"Texture\" value=\"Texture2D;Textures/TouchInput.png\" />"
|
|
" <attribute name=\"Image Rect\" value=\"96 0 192 96\" />"
|
|
" <attribute name=\"Hover Image Offset\" value=\"0 0\" />"
|
|
" <attribute name=\"Pressed Image Offset\" value=\"0 0\" />"
|
|
" <element type=\"Text\">"
|
|
" <attribute name=\"Name\" value=\"Label\" />"
|
|
" <attribute name=\"Horiz Alignment\" value=\"Center\" />"
|
|
" <attribute name=\"Vert Alignment\" value=\"Center\" />"
|
|
" <attribute name=\"Color\" value=\"0 0 0 1\" />"
|
|
" <attribute name=\"Text\" value=\"Obstacles\" />"
|
|
" </element>"
|
|
" <element type=\"Text\">"
|
|
" <attribute name=\"Name\" value=\"MouseButtonBinding\" />"
|
|
" <attribute name=\"Text\" value=\"MIDDLE\" />"
|
|
" </element>"
|
|
" </element>"
|
|
" </add>"
|
|
" <remove sel=\"/element/element[./attribute[@name='Name' and @value='Button0']]/attribute[@name='Is Visible']\" />"
|
|
" <replace sel=\"/element/element[./attribute[@name='Name' and @value='Button0']]/element[./attribute[@name='Name' and @value='Label']]/attribute[@name='Text']/@value\">Set</replace>"
|
|
" <add sel=\"/element/element[./attribute[@name='Name' and @value='Button0']]\">"
|
|
" <element type=\"Text\">"
|
|
" <attribute name=\"Name\" value=\"MouseButtonBinding\" />"
|
|
" <attribute name=\"Text\" value=\"LEFT\" />"
|
|
" </element>"
|
|
" </add>"
|
|
" <remove sel=\"/element/element[./attribute[@name='Name' and @value='Button1']]/attribute[@name='Is Visible']\" />"
|
|
" <replace sel=\"/element/element[./attribute[@name='Name' and @value='Button1']]/element[./attribute[@name='Name' and @value='Label']]/attribute[@name='Text']/@value\">Debug</replace>"
|
|
" <add sel=\"/element/element[./attribute[@name='Name' and @value='Button1']]\">"
|
|
" <element type=\"Text\">"
|
|
" <attribute name=\"Name\" value=\"KeyBinding\" />"
|
|
" <attribute name=\"Text\" value=\"SPACE\" />"
|
|
" </element>"
|
|
" </add>"
|
|
"</patch>";
|
|
}
|
|
|
|
private:
|
|
/// Construct the scene content.
|
|
void CreateScene();
|
|
/// Construct user interface elements.
|
|
void CreateUI();
|
|
/// Set up a viewport for displaying the scene.
|
|
void SetupViewport();
|
|
/// Subscribe to application-wide logic update and post-render update events.
|
|
void SubscribeToEvents();
|
|
/// Read input and moves the camera.
|
|
void MoveCamera(float timeStep);
|
|
/// Set crowd agents target or spawn another jack.
|
|
void SetPathPoint(bool spawning);
|
|
/// Add new obstacle or remove existing obstacle/agent.
|
|
void AddOrRemoveObject();
|
|
/// Create a "Jack" object at position.
|
|
void SpawnJack(const Vector3& pos, Node* jackGroup);
|
|
/// Create a mushroom object at position.
|
|
void CreateMushroom(const Vector3& pos);
|
|
/// Create an off-mesh connection for each box to make it climbable.
|
|
void CreateBoxOffMeshConnections(DynamicNavigationMesh* navMesh, Node* boxGroup);
|
|
/// Create some movable barrels as crowd agents.
|
|
void CreateMovingBarrels(DynamicNavigationMesh* navMesh);
|
|
/// Utility function to raycast to the cursor position. Return true if hit.
|
|
bool Raycast(float maxDistance, Vector3& hitPos, Drawable*& hitDrawable);
|
|
/// Toggle navigation mesh streaming.
|
|
void ToggleStreaming(bool enabled);
|
|
/// Update navigation mesh streaming.
|
|
void UpdateStreaming();
|
|
/// Save navigation data for streaming.
|
|
void SaveNavigationData();
|
|
/// Handle the logic update event.
|
|
void HandleUpdate(StringHash eventType, VariantMap& eventData);
|
|
/// Handle the post-render update event.
|
|
void HandlePostRenderUpdate(StringHash eventType, VariantMap& eventData);
|
|
/// Handle problems with crowd agent placement.
|
|
void HandleCrowdAgentFailure(StringHash eventType, VariantMap& eventData);
|
|
/// Handle crowd agent reposition.
|
|
void HandleCrowdAgentReposition(StringHash eventType, VariantMap& eventData);
|
|
/// Handle crowd agent formation.
|
|
void HandleCrowdAgentFormation(StringHash eventType, VariantMap& eventData);
|
|
|
|
/// Flag for using navigation mesh streaming.
|
|
bool useStreaming_{};
|
|
/// Streaming distance.
|
|
int streamingDistance_{2};
|
|
/// Tile data.
|
|
HashMap<IntVector2, PODVector<unsigned char> > tileData_;
|
|
/// Added tiles.
|
|
HashSet<IntVector2> addedTiles_;
|
|
/// Flag for drawing debug geometry.
|
|
bool drawDebug_{};
|
|
/// Instruction text UI-element.
|
|
Text* instructionText_{};
|
|
};
|