public static TextureAtlas FromGrid(Texture2D texture, int rows, int columns)
{
int tex_w = texture.Width;
int tex_h = texture.Height;
int tile_width = tex_w / columns;
int tile_height = tex_h / rows;
var regions = new RectF[rows * columns];
int index = 0;
for (int i = 0; i < rows; ++i)
{
for (int j = 0; j < columns; ++j)
{
float x = j * tile_width;
float y = i * tile_height;
regions[index++] = RectF.FromBox(x, y, tile_width, tile_height);
}
}
return(new TextureAtlas(texture, regions));
}
public override void Load()
{
Engine.Canvas.StretchMode = CanvasStretchMode.LetterBox;
left_view = Engine.Canvas.CreateView();
right_view = Engine.Canvas.CreateView();
left_view.Viewport = RectF.FromBox(0f, 0f, 0.495f, 1f);
right_view.Viewport = RectF.FromBox(0.5f, 0f, 0.5f, 1f);
left_view.SizeFactor = new Vec2(0.5f, 1.0f);
right_view.SizeFactor = new Vec2(0.5f, 1.0f);
texture = Engine.Content.Get <Texture2D>("party");
bg_tile = Engine.Content.Get <Texture2D>("purple_tile");
bg_tile.Tiled = true;
int canvas_w = Engine.Canvas.Width;
int canvas_h = Engine.Canvas.Height;
quad = new Quad(texture);
quad.V0.X = canvas_w / 2 - texture.Width / 2;
quad.V0.Y = canvas_h / 2 - texture.Height / 2;
quad.V1.X = quad.V0.X + texture.Width;
quad.V1.Y = quad.V0.Y;
quad.V2.X = quad.V1.X;
quad.V2.Y = quad.V0.Y + texture.Height;
quad.V3.X = quad.V0.X;
quad.V3.Y = quad.V2.Y;
bg_quad = new Quad();
bg_quad.V0.X = 0;
bg_quad.V0.Y = 0;
bg_quad.V0.Col = 0xFFFFFFFF;
bg_quad.V1.X = canvas_w;
bg_quad.V1.Y = 0;
bg_quad.V1.Col = 0xFFFFFFFF;
bg_quad.V2.X = canvas_w;
bg_quad.V2.Y = canvas_h;
bg_quad.V2.Col = 0xFFFFFFFF;
bg_quad.V3.X = 0;
bg_quad.V3.Y = canvas_h;
bg_quad.V3.Col = 0xFFFFFFFF;
bg_quad.V0.Tx = 0;
bg_quad.V0.Ty = 0;
bg_quad.V1.Tx = canvas_w / 64f;
bg_quad.V1.Ty = 0;
bg_quad.V2.Tx = canvas_w / 64f;
bg_quad.V2.Ty = canvas_h / 64f;
bg_quad.V3.Tx = 0;
bg_quad.V3.Ty = canvas_h / 64f;
}
private TextureAtlas(Texture2D texture, RectF[] regions)
{
_texture = texture;
this._quads = new Quad[regions.Length];
for (int i = 0; i < regions.Length; ++i)
{
ref var region = ref regions[i];
_quads[i] = new Quad(texture, RectF.FromBox(region.X1, region.Y1, region.Width, region.Height));
}
public override void Load()
{
m_render_target = RenderTarget.Create(320, 240, false);
m_render_target_view = Engine.Canvas.CreateView(Color.Black);
m_render_target_view.AbsoluteViewport = RectF.FromBox(0, 0, 320, 240);
m_render_target_view.RenderTarget = m_render_target;
m_sprite = new Sprite(Engine.Content.Get <Texture2D>("party"));
m_sprite.SetPosition(Engine.Canvas.Width / 2, Engine.Canvas.Height / 2);
m_sprite_target = new Sprite(m_render_target.Texture);
m_sprite_target.SetPosition(Engine.Canvas.Width / 2, Engine.Canvas.Height / 2);
}
public override void Load()
{
quad = new Quad(RectF.FromBox(
100f,
100f,
Engine.Canvas.Width - 200f,
Engine.Canvas.Height - 200f
));
quad.SetColors(
color_top_left: Color.Red,
color_top_right: Color.Orange,
color_bottom_left: Color.PeachPuff,
color_bottom_right: Color.GreenYellow
);
}
public Quad(Texture2D texture, RectF src_rect = default, RectF dest_rect = default)
{
this.V0 = new Vertex2D();
this.V1 = new Vertex2D();
this.V2 = new Vertex2D();
this.V3 = new Vertex2D();
this.Blend = BlendMode.AlphaBlend;
if (texture == null)
{
return;
}
float ax, ay, bx, by;
float dest_x1, dest_y1, dest_x2, dest_y2;
if (src_rect.IsEmpty)
{
src_rect = RectF.FromBox(0, 0, texture.Width, texture.Height);
ax = 0;
ay = 0;
bx = 1;
by = 1;
}
else
{
float inv_tex_w = 1.0f / texture.Width;
float inv_tex_h = 1.0f / texture.Height;
ax = src_rect.X1 * inv_tex_w;
ay = src_rect.Y1 * inv_tex_h;
bx = src_rect.X2 * inv_tex_w;
by = src_rect.Y2 * inv_tex_h;
}
if (dest_rect.IsEmpty)
{
dest_x1 = 0;
dest_y1 = 0;
dest_x2 = src_rect.Width;
dest_y2 = src_rect.Height;
}
else
{
dest_x1 = dest_rect.X1;
dest_y1 = dest_rect.Y1;
dest_x2 = dest_rect.X2;
dest_y2 = dest_rect.Y2;
}
this.V0.X = dest_x1;
this.V0.Y = dest_y1;
this.V0.Tx = ax;
this.V0.Ty = ay;
this.V0.Col = 0xFFFFFFFF;
this.V1.X = dest_x2;
this.V1.Y = dest_y1;
this.V1.Tx = bx;
this.V1.Ty = ay;
this.V1.Col = 0xFFFFFFFF;
this.V2.X = dest_x2;
this.V2.Y = dest_y2;
this.V2.Tx = bx;
this.V2.Ty = by;
this.V2.Col = 0xFFFFFFFF;
this.V3.X = dest_x1;
this.V3.Y = dest_y2;
this.V3.Tx = ax;
this.V3.Ty = by;
this.V3.Col = 0xFFFFFFFF;
}
public FontData LoadFontData(string descr_path, string image_path)
{
var sheet_data = LoadPixmapData(image_path);
var glyphs = new RectF[255];
var pre_spacings = new float[255];
var post_spacings = new float[255];
using (var descr_stream = File.OpenRead(descr_path))
{
using (var reader = new StreamReader(descr_stream, Encoding.UTF8))
{
string line;
var idx = 0;
while ((line = reader.ReadLine()) != null)
{
if (line.Length == 0)
{
continue;
}
if (idx == 0 && !line.Equals(FNT_HEADER_TAG))
{
throw new Exception("Invalid Font Description File.");
}
if (line.StartsWith(FNT_CHAR_TAG))
{
string char_def_str = line.Split('=')[1];
string[] char_def_attrs = char_def_str.Split(',');
if (char_def_attrs.Length != 7)
{
throw new Exception(
$"Invalid Font Description File: Invalid Char Definition at line: {line + 1}");
}
int ch_idx = int.Parse(char_def_attrs[0]);
if (ch_idx < 0 || ch_idx > 255)
{
throw new Exception("Invalid Font Description File: Character Id out of range");
}
int letter_reg_x = int.Parse(char_def_attrs[1]);
int letter_reg_y = int.Parse(char_def_attrs[2]);
int letter_reg_w = int.Parse(char_def_attrs[3]);
int letter_reg_h = int.Parse(char_def_attrs[4]);
int letter_pre_spac = int.Parse(char_def_attrs[5]);
int letter_post_spac = int.Parse(char_def_attrs[6]);
glyphs[ch_idx] = RectF.FromBox(letter_reg_x, letter_reg_y, letter_reg_w,
letter_reg_h);
pre_spacings[ch_idx] = letter_pre_spac;
post_spacings[ch_idx] = letter_post_spac;
}
idx++;
}
}
}
var id = Path.GetFileNameWithoutExtension(descr_path);
var font_data = new FontData()
{
FontSheet = sheet_data,
GlyphRects = glyphs,
Id = id,
PreSpacings = pre_spacings,
PostSpacings = post_spacings
};
return(font_data);
}