public static Scene MakeMultiTouchScene()
{
Trail <Vector2>[] touch = new Trail <Vector2> [Input2.Touch.MaxTouch];
Grid[] trail_polys = new Grid[Input2.Touch.MaxTouch];
for (int i = 0; i < touch.Length; ++i)
{
touch[i] = new Trail <Vector2>(16);
}
Vector2i grid_size = new Vector2i(20, 24);
for (int i = 0; i < trail_polys.Length; ++i)
{
trail_polys[i] = new Grid(grid_size);
}
Vector2[] curve_points = new Vector2[grid_size.Y];
Vector2[] circle_points = new Vector2[grid_size.X];
for (int i = 0; i < circle_points.Length; ++i)
{
circle_points[i] = Vector2.Rotation(Math.TwicePi * (float)i / (float)(circle_points.Length - 1));
}
List <Vector2> control_points = new List <Vector2>();
Vector4[] colors =
{
// Colors.Black,
Colors.Red,
Colors.Green,
Colors.Yellow,
Colors.Blue,
Colors.Magenta,
Colors.Cyan,
Colors.White,
Colors.Lime,
Colors.LightBlue,
Colors.Pink,
Colors.Orange,
Colors.LightCyan,
Colors.Purple,
};
var scene = new Scene();
{
var info = new Label();
info.Camera = UICamera;
info.Position = UICamera.CalcBounds().Point00;
info.FontMap = UIFontMap;
info.HeightScale = UICamera.GetPixelSize();
info.Text = "try touch the screen at multiple points at the same time";
scene.AddChild(info);
}
scene.OnExitEvents += () => {
foreach (Grid grid in trail_polys)
{
grid.Dispose();
}
trail_polys = null;
};
scene.AdHocDraw += () =>
{
BlendFunc blend_func = Director.Instance.GL.Context.GetBlendFunc();
DepthFunc depth_func = Director.Instance.GL.Context.GetDepthFunc();
for (int k = 0; k < touch.Length; ++k)
{
bool down = Input2.Touch.GetData(0)[k].Down;
bool press = Input2.Touch.GetData(0)[k].Press;
Vector2 p = Director.Instance.CurrentScene.GetTouchPos(k);
if (!down)
{
continue;
}
// press means a new touch data has just been "created"
// -> fill the whole trail to the new position
if (press)
{
touch[k].Fill(p);
}
touch[k].Add(p);
control_points.Clear();
control_points.Add(touch[k].At(0));
for (int i = 0; i < touch[k].Count; ++i)
{
control_points.Add(touch[k].At(i));
}
{
Vector4 start_color = colors[k];
Vector4 end_color = Math.SetAlpha(start_color, 0.0f);
float start_radius = 2.0f;
float end_radius = 1.8f;
Grid grid = trail_polys[k];
for (int i = 0; i < curve_points.Length; ++i)
{
curve_points[i] = Curves.CatmullRom((float)i / (float)(curve_points.Length - 1), control_points, false);
}
for (int j = 0; j < grid.Size.Y; ++j)
{
float y = (float)j / (float)(grid.Size.Y - 1);
for (int i = 0; i < grid.Size.X; ++i)
{
grid.TmpVertices[i + j * grid.Size.X] = new DrawHelpers.Vertex((curve_points[j] + circle_points[i] * Math.Lerp(start_radius, end_radius, y)).Xy01
, Math.Lerp(start_color, end_color, y));
}
}
grid.VertexBuffer.SetVertices(grid.TmpVertices, 0, 0, grid.NumVertices);
Director.Instance.GL.SetBlendMode(BlendMode.Normal);
Director.Instance.DrawHelpers.ShaderPush();
grid.Draw();
{
Director.Instance.DrawHelpers.ImmBegin(DrawMode.TriangleFan, (uint)grid.Size.X);
for (int i = 0; i < grid.Size.X; ++i)
{
Director.Instance.DrawHelpers.ImmVertex(new DrawHelpers.Vertex((curve_points[0] + circle_points[i] * start_radius).Xy01
, start_color));
}
Director.Instance.DrawHelpers.ImmEnd();
}
Director.Instance.DrawHelpers.ShaderPop();
}
}
// restore states
Director.Instance.GL.Context.Disable(EnableMode.DepthTest);
Director.Instance.GL.Context.SetDepthFunc(depth_func);
Director.Instance.GL.Context.SetBlendFunc(blend_func);
};
return(scene);
}
public override void Draw()
{
DepthFunc depth_func = Director.Instance.GL.Context.GetDepthFunc();
Director.Instance.GL.Context.Disable(EnableMode.DepthTest);
if (!m_select_tile_screen)
{
// DrawExampleSourceImage();
DrawWorld();
if (!is_erase_mode() && !navigating)
{
DrawBrush();
}
DrawIsometricTilesRulers();
{
m_gui_camera.SetViewFromViewport();
m_gui_camera.Push();
float h = m_gui_camera.GetPixelSize() * EmbeddedDebugFontData.CharSizei.Y;
Vector2 line_incr = new Vector2(0, (EmbeddedDebugFontData.CharSizei.Y + 1) * m_gui_camera.GetPixelSize());
Vector2 pos = line_incr * 9;
Vector3i coord = m_world_edit_cell;
string text = "";
text += "commands:\n";
text += "- triangle/W + drag : zoom\n";
text += "- square/A + drag : translate\n";
text += "- hold cross/S : bring tile image select screen\n";
text += "- hold circle/D + touch/drag : put tile at selected world cell\n";
text += "- up : increment edit z\n";
text += "- down : decrement edit z\n";
text += "- right : toggle secondary object\n";
text += "SECOND OBJECT=" + m_second_object + "\n";
if (IsValidIndex(coord))
{
text += "SELECTED TILE=" + coord + "\n";
}
Director.Instance.GL.SetBlendMode(BlendMode.Normal);
Director.Instance.SpriteRenderer.DrawTextDebug(text, pos, h);
m_gui_camera.Pop();
}
}
else
{
DrawTilesForSelection();
{
m_gui_camera.SetViewFromViewport();
m_gui_camera.Push();
float h = m_gui_camera.GetPixelSize() * EmbeddedDebugFontData.CharSizei.Y;
Vector2 line_incr = new Vector2(0, (EmbeddedDebugFontData.CharSizei.Y + 1) * m_gui_camera.GetPixelSize());
Vector2 pos = line_incr * 4;
Director.Instance.GL.SetBlendMode(BlendMode.Normal);
string text = "";
text += "commands:\n";
text += "- touch : scroll the tile map and select a tile\n";
text += "- touch empty space : set erase mode\n";
text += "- release cross/S : back to world edit screen\n";
text += "SELECTED TILE=" + m_selected_tile + "\n";
Director.Instance.SpriteRenderer.DrawTextDebug(text, pos, h);
m_gui_camera.Pop();
}
}
Director.Instance.GL.Context.SetDepthFunc(depth_func);
}
