Working on fixing minor bugs

src/MenuManager.cpp

@@ -103,6 +103,22 @@ namespace ZL {
 			uiManager.setButtonCallback("shootButton2", [this](const std::string& name) {
 				onFirePressed();
 				});
+			uiManager.setButtonCallback("plusButton", [this](const std::string& name) {
+				int newVel = Environment::shipState.selectedVelocity+1;
+				if (newVel > 4)
+				{
+					newVel = 4;
+				}
+				onVelocityChanged(newVel);
+				});
+			uiManager.setButtonCallback("minusButton", [this](const std::string& name) {
+				int newVel = Environment::shipState.selectedVelocity-1;
+				if (newVel < 0)
+				{
+					newVel = 0;
+				}
+				onVelocityChanged(newVel);
+				});
 			uiManager.setSliderCallback("velocitySlider", [this](const std::string& name, float value) {
 				
 				int newVel = roundf(value * 10);