void OnGUI()
{
//------------------ Cannon Settings GUI --------------------------------------------------
if (StaticGameVars.guiSettingsEnabled)
{
// Make a GUILayout area at the bottom left
GUILayout.BeginArea(new Rect(10.0f, Screen.height - 90.0f, 175.0f, 100.0f));
// The vertical consists of the two textfields
GUILayout.BeginVertical("box");
// Begin Angle textfield
GUILayout.BeginHorizontal();
GUILayout.Label("Angle", style);
// Parse float input in angle textfield
angleString = GUILayout.TextField(angleString, GUILayout.MaxWidth(75));
float angleOut;
if (float.TryParse(angleString, out angleOut))
{
angle = angleOut;
}
else if (angleString == "")
{
angle = 0f;
}
// End angle textfield
GUILayout.EndHorizontal();
// Begin initial velocity textfield
GUILayout.BeginHorizontal();
GUILayout.Label("Initial Velocity", style);
// Parse float input in Initial Velocity textfield
initialVelocityString = GUILayout.TextField(initialVelocityString, GUILayout.MaxWidth(75));
float initialVelocityOut;
if (float.TryParse(initialVelocityString, out initialVelocityOut))
{
initialVelocity = initialVelocityOut;
}
else if (initialVelocityString == "")
{
initialVelocity = 0f;
}
// End initial velocity textfield
GUILayout.EndHorizontal();
// End the vertical
GUILayout.EndVertical();
// Start button starts the simulation
GUILayout.BeginHorizontal();
if (GUILayout.Button("Start"))
{
StaticGameVars.guiSettingsEnabled = false;
cannon.Fire();
}
GUILayout.EndHorizontal();
// End Area
GUILayout.EndArea();
if (GUI.changed)
{
cannon.SetAngle(angle);
cannon.SetVelocity(initialVelocity);
}
}
//---------------- End of Cannon Settings GUI ---------------------------------------------
//-------------------- Info GUI ---------------------------------------------------
// Create a new GUI area at the top left
GUILayout.BeginArea(new Rect(10.0f, 10.0f, 175.0f, 100.0f));
GUILayout.BeginVertical("box");
// Includes the score (i.e. how many times projectile hit the target)
GUILayout.BeginHorizontal();
GUILayout.Label("Score", style);
GUILayout.Label(StaticGameVars.score.ToString(), style);
GUILayout.EndHorizontal();
// How many shots remaining before restart
GUILayout.BeginHorizontal();
GUILayout.Label("Shots", style);
GUILayout.Label(StaticGameVars.shots.ToString(), style);
GUILayout.EndHorizontal();
GUILayout.EndVertical();
// Help button. Toggles the help menu (see below)
GUILayout.BeginHorizontal();
if (GUILayout.Button("Help"))
{
helpMenu = !helpMenu;
}
GUILayout.EndHorizontal();
// End info area
GUILayout.EndArea();
//------------------ End of Info GUI -----------------------------------------------------
//--------------------- Help Menu ---------------------------------------------------------
if (helpMenu)
{
// Create new GUI area in the center of screen (should disable elements in background)
GUILayout.BeginArea(new Rect(Screen.width * 0.5f - 375.0f, Screen.height * 0.5f - 250.0f, 750.0f, 500.0f));
GUI.skin.settings.cursorFlashSpeed = 0;
GUILayout.TextArea("Arc-Cannon is a conceptual, projectile motion game meant to teach the relationships between initial velocity, angle, " +
"distance, and height.\n" +
"Set the angle of the cannon to your desired angle (something that seems appropriate given the problem), " +
"then set the initial velocity. A projectile will fire and leave a trail to mark it's path. If you hit the target, " +
"the trail goes away and the next problem will be presented.\n" +
"You start out with three shots. If you use all your shots, it's game over. Every shot you don't use gets added to your score. " +
"Also, 3 more shots get added at the end of each scenario.");
GUILayout.EndArea();
}
//------------------ End of Help Menu -----------------------------------------------------
}
