Textbox bounds checking

olcCodeJam2023Entry/Textbox.cpp

@@ -52,11 +52,22 @@ void Textbox::Update(PixelGameEngine*pge){
 
 void Textbox::Draw(PixelGameEngine*pge,Resources&resources){
 	if(visible){
-		vf2d finalPos=pos;
 		geom2d::rect<float>boxRect={pos-vf2d{2,2},maxSize+vf2d{4,4}};
-		pge->FillRectDecal(pos-vf2d{2,2},maxSize+vf2d{4,4},VERY_DARK_GREEN);
-		pge->DrawRectDecal(pos-vf2d{1,1},maxSize+vf2d{3,3},WHITE);
-		pge->DrawShadowStringPropDecal(pos+vf2d{1,1},displayText,{220,220,220});
+		if(boxRect.bottom().start.y>=pge->ScreenHeight()){
+			boxRect.pos-={0,boxRect.bottom().start.y-pge->ScreenHeight()};
+		}
+		if(boxRect.right().start.x>=pge->ScreenWidth()){
+			boxRect.pos-={boxRect.right().start.x-pge->ScreenWidth(),0};
+		}
+		if(boxRect.top().start.y<0){
+			boxRect.pos+={0,-boxRect.top().start.y};
+		}
+		if(boxRect.left().start.x<0){
+			boxRect.pos+={-boxRect.left().start.x,0};
+		}
+		pge->FillRectDecal(boxRect.pos,maxSize+vf2d{4,4},VERY_DARK_GREEN);
+		pge->DrawRectDecal(boxRect.pos+vf2d{1,1},maxSize+vf2d{3,3},WHITE);
+		pge->DrawShadowStringPropDecal(boxRect.pos+vf2d{3,3},displayText,{220,220,220});
 	}
 }
 
@@ -79,4 +90,8 @@ void Textbox::UpdateAndDraw(vf2d pos,PixelGameEngine*pge,Resources&resources){
 	UpdatePosition(pos);
 	Update(pge);
 	Draw(pge,resources);
+}
+
+vf2d Textbox::GetSize(){
+	return maxSize;
 }

olcCodeJam2023Entry/Textbox.h

@@ -24,6 +24,7 @@ public:
 	void UpdateAndDraw(vf2d pos,PixelGameEngine*pge,Resources&resources);
 	std::string&GetCurrentString();
 	void SetVisible(bool visible);
+	vf2d GetSize();
 private:
 	void Update(PixelGameEngine*pge);
 	void UpdatePosition(vf2d newPos);

olcCodeJam2023Entry/VirusAttack.cpp

@@ -61,6 +61,7 @@ bool VirusAttack::OnUserCreate(){
 	unitCreationBox.Initialize("Hello world, this is a test of the textbox system.\nMaybe even with some newline characters snuck in there.",
 		{});
 	unitCreationBox.SetVisible(false);
+	testBox.Initialize("Hello world, this is a test of the textbox system.\nMaybe even with some newline characters snuck in there.",{});
 
 	IMAGES[MINIMAP_OUTLINE]=std::make_unique<Renderable>();
 	IMAGES[MINIMAP_OUTLINE]->Create(64,64);
@@ -534,6 +535,7 @@ bool VirusAttack::OnUserUpdate(float fElapsedTime){
 	DrawMinimap();
 
 	unitCreationBox.UpdateAndDraw(GetMousePos(),this,player_resources);
+	testBox.UpdateAndDraw(GetMousePos()-testBox.GetSize()/2,this,player_resources);
 
 	std::sort(units.begin(),units.end(),[&](auto&u1,auto&u2){
 		float dist1=geom2d::line<float>(u1->GetGhostPos(),GetWorldMousePos()).length();

olcCodeJam2023Entry/VirusAttack.h

@@ -38,7 +38,7 @@ private:
 
 	TileTransformedView game;
 
-	Textbox unitCreationBox;
+	Textbox unitCreationBox,testBox;
 
 	QuickGUI::Manager unitCreationList;
 	QuickGUI::ImageButton*leftShifterButton;