Zoom

6 files changed, 189 insertions, 20 deletions

diff --git a/src/game/GameController.cpp b/src/game/GameController.cpp
index 277c32c..752a0ba 100644
--- a/src/game/GameController.cpp
+++ b/src/game/GameController.cpp
@@ -107,6 +107,36 @@ void GameController::AdjustBrushSize(int direction)
 	gameModel->GetBrush()->SetRadius(newSize);
 }
 
+void GameController::AdjustZoomSize(int direction)
+{
+	int newSize = gameModel->GetZoomSize()+direction;
+	if(newSize<5)
+			newSize = 5;
+	if(newSize>64)
+			newSize = 64;
+	gameModel->SetZoomSize(newSize);
+
+	int newZoomFactor = 256/newSize;
+	if(newZoomFactor<3)
+		newZoomFactor = 3;
+	gameModel->SetZoomFactor(newZoomFactor);
+}
+
+ui::Point GameController::PointTranslate(ui::Point point)
+{
+	bool zoomEnabled = gameModel->GetZoomEnabled();
+	if(!zoomEnabled)
+		return point;
+	//If we try to draw inside the zoom window, normalise the coordinates
+	int zoomFactor = gameModel->GetZoomFactor();
+	ui::Point zoomWindowPosition = gameModel->GetZoomWindowPosition();
+	ui::Point zoomWindowSize = ui::Point(gameModel->GetZoomSize()*zoomFactor, gameModel->GetZoomSize()*zoomFactor);
+
+	if(point.X > zoomWindowPosition.X && point.X > zoomWindowPosition.Y && point.X < zoomWindowPosition.X+zoomWindowSize.X && point.Y < zoomWindowPosition.Y+zoomWindowSize.Y)
+		return ((point-zoomWindowPosition)/gameModel->GetZoomFactor())+gameModel->GetZoomPosition();
+	return point;
+}
+
 void GameController::DrawPoints(queue<ui::Point*> & pointQueue)
 {
 	Simulation * sim = gameModel->GetSimulation();
@@ -123,26 +153,27 @@ void GameController::DrawPoints(queue<ui::Point*> & pointQueue)
 			}
 		}
 	}
+
 	if(!pointQueue.empty())
 	{
-		ui::Point * sPoint = NULL;
+		ui::Point sPoint(0, 0);
+		bool first = true;
 		while(!pointQueue.empty())
 		{
-			ui::Point * fPoint = pointQueue.front();
+			ui::Point fPoint = PointTranslate(*pointQueue.front());
+			delete pointQueue.front();
 			pointQueue.pop();
-			if(sPoint)
+			if(!first)
 			{
-				activeTool->DrawLine(sim, cBrush, *fPoint, *sPoint);
-				delete sPoint;
+				activeTool->DrawLine(sim, cBrush, fPoint, sPoint);
 			}
 			else
 			{
-				activeTool->Draw(sim, cBrush, *fPoint);
+				first = false;
+				activeTool->Draw(sim, cBrush, fPoint);
 			}
 			sPoint = fPoint;
 		}
-		if(sPoint)
-			delete sPoint;
 	}
 }
 
@@ -168,6 +199,25 @@ void GameController::Update()
 	}
 }
 
+void GameController::SetZoomEnabled(bool zoomEnabled)
+{
+	gameModel->SetZoomEnabled(zoomEnabled);
+}
+
+void GameController::SetZoomPosition(ui::Point position)
+{
+	ui::Point zoomPosition = position-(gameModel->GetZoomSize()/2);
+	if(zoomPosition.X < 0)
+			zoomPosition.X = 0;
+	if(zoomPosition.Y < 0)
+			zoomPosition.Y = 0;
+	if(zoomPosition.X >= XRES-gameModel->GetZoomSize())
+			zoomPosition.X = XRES-gameModel->GetZoomSize();
+	if(zoomPosition.Y >= YRES-gameModel->GetZoomSize())
+			zoomPosition.Y = YRES-gameModel->GetZoomSize();
+	gameModel->SetZoomPosition(zoomPosition);
+}
+
 void GameController::SetPaused(bool pauseState)
 {
 	gameModel->SetPaused(pauseState);
diff --git a/src/game/GameController.h b/src/game/GameController.h
index 2ec4523..7498e47 100644
--- a/src/game/GameController.h
+++ b/src/game/GameController.h
@@ -31,7 +31,10 @@ public:
 	GameController();
 	~GameController();
 	GameView * GetView();
+	void SetZoomEnabled(bool zoomEnable);
+	void SetZoomPosition(ui::Point position);
 	void AdjustBrushSize(int direction);
+	void AdjustZoomSize(int direction);
 	void DrawPoints(queue<ui::Point*> & pointQueue);
 	void Update();
 	void SetPaused(bool pauseState);
@@ -48,6 +51,7 @@ public:
 	void ReloadSim();
 	void Vote(int direction);
 	void ChangeBrush();
+	ui::Point PointTranslate(ui::Point point);
 };
 
 #endif // GAMECONTROLLER_H
diff --git a/src/game/GameModel.cpp b/src/game/GameModel.cpp
index 5dfc521..456d9c4 100644
--- a/src/game/GameModel.cpp
+++ b/src/game/GameModel.cpp
@@ -160,6 +160,61 @@ User GameModel::GetUser()
 	return currentUser;
 }
 
+void GameModel::SetZoomEnabled(bool enabled)
+{
+	ren->zoomEnabled = enabled;
+	notifyZoomChanged();
+}
+
+bool GameModel::GetZoomEnabled()
+{
+	return ren->zoomEnabled;
+}
+
+void GameModel::SetZoomPosition(ui::Point position)
+{
+	ren->zoomScopePosition = position;
+	notifyZoomChanged();
+}
+
+ui::Point GameModel::GetZoomPosition()
+{
+	return ren->zoomScopePosition;
+}
+
+void GameModel::SetZoomWindowPosition(ui::Point position)
+{
+	ren->zoomWindowPosition = position;
+	notifyZoomChanged();
+}
+
+ui::Point GameModel::GetZoomWindowPosition()
+{
+	return ren->zoomWindowPosition;
+}
+
+void GameModel::SetZoomSize(int size)
+{
+	ren->zoomScopeSize = size;
+	notifyZoomChanged();
+}
+
+int GameModel::GetZoomSize()
+{
+	return ren->zoomScopeSize;
+}
+
+void GameModel::SetZoomFactor(int factor)
+{
+	ren->ZFACTOR = factor;
+	notifyZoomChanged();
+}
+
+int GameModel::GetZoomFactor()
+{
+	return ren->ZFACTOR;
+}
+
 void GameModel::SetUser(User user)
 {
 	currentUser = user;
@@ -253,3 +308,11 @@ void GameModel::notifyUserChanged()
 		observers[i]->NotifyUserChanged(this);
 	}
 }
+
+void GameModel::notifyZoomChanged()
+{
+	for(int i = 0; i < observers.size(); i++)
+	{
+		observers[i]->NotifyZoomChanged(this);
+	}
+}
diff --git a/src/game/GameModel.h b/src/game/GameModel.h
index 72e2875..3c26bf3 100644
--- a/src/game/GameModel.h
+++ b/src/game/GameModel.h
@@ -32,6 +32,7 @@ private:
 	Renderer * ren;
 	Tool * activeTool;
 	User currentUser;
+	//bool zoomEnabled;
 	void notifyRendererChanged();
 	void notifySimulationChanged();
 	void notifyPausedChanged();
@@ -41,6 +42,7 @@ private:
 	void notifyToolListChanged();
 	void notifyActiveToolChanged();
 	void notifyUserChanged();
+	void notifyZoomChanged();
 public:
 	GameModel();
 	~GameModel();
@@ -64,6 +66,16 @@ public:
 	int GetBrushID();
 	Simulation * GetSimulation();
 	Renderer * GetRenderer();
+	void SetZoomEnabled(bool enabled);
+	bool GetZoomEnabled();
+	void SetZoomSize(int size);
+	int GetZoomSize();
+	void SetZoomFactor(int factor);
+	int GetZoomFactor();
+	void SetZoomPosition(ui::Point position);
+	ui::Point GetZoomPosition();
+	void SetZoomWindowPosition(ui::Point position);
+	ui::Point GetZoomWindowPosition();
 };
 
 #endif // GAMEMODEL_H
diff --git a/src/game/GameView.cpp b/src/game/GameView.cpp
index 3a20b3e..3b1cd26 100644
--- a/src/game/GameView.cpp
+++ b/src/game/GameView.cpp
@@ -380,7 +380,7 @@ void GameView::OnMouseMove(int x, int y, int dx, int dy)
 
 void GameView::OnMouseDown(int x, int y, unsigned button)
 {
-	if(currentMouse.X > 0 && currentMouse.X < XRES && currentMouse.Y > 0 && currentMouse.Y < YRES)
+	if(currentMouse.X > 0 && currentMouse.X < XRES && currentMouse.Y > 0 && currentMouse.Y < YRES && !(zoomEnabled && !zoomCursorFixed))
 	{
 		isMouseDown = true;
 		pointQueue.push(new ui::Point(x, y));
@@ -389,10 +389,15 @@ void GameView::OnMouseDown(int x, int y, unsigned button)
 
 void GameView::OnMouseUp(int x, int y, unsigned button)
 {
-	if(isMouseDown)
+	if(zoomEnabled && !zoomCursorFixed)
+		zoomCursorFixed = true;
+	else
 	{
-		isMouseDown = false;
-		pointQueue.push(new ui::Point(x, y));
+		if(isMouseDown)
+		{
+			isMouseDown = false;
+			pointQueue.push(new ui::Point(x, y));
+		}
 	}
 }
 
@@ -400,10 +405,17 @@ void GameView::OnMouseWheel(int x, int y, int d)
 {
 	if(!d)
 		return;
-	c->AdjustBrushSize(d);
-	if(isMouseDown)
+	if(zoomEnabled && !zoomCursorFixed)
 	{
-		pointQueue.push(new ui::Point(x, y));
+		c->AdjustZoomSize(d);
+	}
+	else
+	{
+		c->AdjustBrushSize(d);
+		if(isMouseDown)
+		{
+			pointQueue.push(new ui::Point(x, y));
+		}
 	}
 }
 
@@ -417,11 +429,29 @@ void GameView::OnKeyPress(int key, bool shift, bool ctrl, bool alt)
 	case KEY_TAB: //Tab
 		c->ChangeBrush();
 		break;
+	case 'z':
+		isMouseDown = false;
+		zoomCursorFixed = false;
+		c->SetZoomEnabled(true);
+		break;
 	}
 }
 
+void GameView::OnKeyRelease(int key, bool shift, bool ctrl, bool alt)
+{
+	//switch(key)
+	//{
+	//case 'z':
+		if(!zoomCursorFixed)
+			c->SetZoomEnabled(false);
+	//	break;
+	//}
+}
+
 void GameView::OnTick(float dt)
 {
+	if(zoomEnabled && !zoomCursorFixed)
+		c->SetZoomPosition(currentMouse);
 	if(isMouseDown)
 	{
 		pointQueue.push(new ui::Point(currentMouse));
@@ -433,17 +463,23 @@ void GameView::OnTick(float dt)
 	c->Update();
 }
 
+void GameView::NotifyZoomChanged(GameModel * sender)
+{
+	zoomEnabled = sender->GetZoomEnabled();
+}
+
 void GameView::OnDraw()
 {
 	if(ren)
 	{
 		ren->render_parts();
 		ren->render_fire();
-		ren->DrawSigns();
 		ren->DrawWalls();
-	}
-	if(activeBrush && currentMouse.X > 0 && currentMouse.X < XRES && currentMouse.Y > 0 && currentMouse.Y < YRES)
-	{
-		activeBrush->Render(ui::Engine::Ref().g, currentMouse);
+		if(activeBrush && currentMouse.X > 0 && currentMouse.X < XRES && currentMouse.Y > 0 && currentMouse.Y < YRES)
+		{
+			activeBrush->Render(ui::Engine::Ref().g, c->PointTranslate(currentMouse));
+		}
+		ren->RenderZoom();
+		ren->DrawSigns();
 	}
 }
diff --git a/src/game/GameView.h b/src/game/GameView.h
index f0c3e82..610b953 100644
--- a/src/game/GameView.h
+++ b/src/game/GameView.h
@@ -18,6 +18,8 @@ class GameView: public ui::Window
 {
 private:
 	bool isMouseDown;
+	bool zoomEnabled;
+	bool zoomCursorFixed;
 	queue<ui::Point*> pointQueue;
 	GameController * c;
 	Renderer * ren;
@@ -49,11 +51,13 @@ public:
 	void NotifyToolListChanged(GameModel * sender);
 	void NotifyActiveToolChanged(GameModel * sender);
 	void NotifyUserChanged(GameModel * sender);
+	void NotifyZoomChanged(GameModel * sender);
 	virtual void OnMouseMove(int x, int y, int dx, int dy);
 	virtual void OnMouseDown(int x, int y, unsigned button);
 	virtual void OnMouseUp(int x, int y, unsigned button);
 	virtual void OnMouseWheel(int x, int y, int d);
 	virtual void OnKeyPress(int key, bool shift, bool ctrl, bool alt);
+	virtual void OnKeyRelease(int key, bool shift, bool ctrl, bool alt);
 	//virtual void OnKeyPress(int key, bool shift, bool ctrl, bool alt) {}
 	//virtual void OnKeyRelease(int key, bool shift, bool ctrl, bool alt) {}
 	virtual void OnTick(float dt);