public override void DrawScene(SDLRenderer renderer)
{
// You don't really want to uncomment the next line...
// Console.WriteLine( "exBlitTextures.DrawScene : Event from SDLRenderer.DrawScene" );
var tW = texture.Width;
var tH = texture.Height;
var rect = new SDL.SDL_Rect(0, 0, tW, tH);
for (int i = 0; i < ITTERATIONS; i++)
{
// Adjust color modulation
var c = Color.FromArgb(
random.Next(256),
random.Next(256),
random.Next(256),
random.Next(256)
);
texture.ColorMod = c;
// Blit the Texture now
rect.x = random.Next(SDL_WINDOW_WIDTH - tW);
rect.y = random.Next(SDL_WINDOW_HEIGHT - tH);
renderer.Blit(rect, texture);
}
}
void BlitAsSprite(SDLRenderer renderer, SDLRenderer.Texture texture, double angle, Color c)
{
var pos = spinCentre.Add(RotateAround(spinDistance, angle));
var rect = new SDL.SDL_Rect(spriteRect.x + pos.x, spriteRect.y + pos.y, spriteRect.w, spriteRect.h);
texture.ColorMod = c;
renderer.Blit(rect, texture);
}
public override void DrawScene(SDLRenderer renderer)
{
// You don't really want to uncomment the next line...
// Console.WriteLine( "exDrawText2.DrawScene : Event from SDLRenderer.DrawScene" );
for (int i = 0; i < ITTERATIONS; i++)
{
var rect = new SDL.SDL_Rect(
random.Next(SDL_WINDOW_WIDTH - textSize.Width),
random.Next(SDL_WINDOW_HEIGHT - textSize.Height),
textSize.Width,
textSize.Height
);
var c = Color.FromArgb(
random.Next(256),
random.Next(256),
random.Next(256),
random.Next(256)
);
textTure.ColorMod = c;
renderer.Blit(rect, textTure);
}
}
public override void DrawScene(SDLRenderer renderer)
{
// You don't really want to uncomment the next line...
// Console.WriteLine( "exSample1.DrawScene : Event from SDLRenderer.DrawScene" );
if (true)
{
// Draw a couple solid lines over the window
var p1 = new SDL.SDL_Point(SDL_WINDOW_WIDTH / 2, 0);
var p2 = new SDL.SDL_Point(SDL_WINDOW_WIDTH / 2, SDL_WINDOW_HEIGHT);
var p3 = new SDL.SDL_Point(0, SDL_WINDOW_HEIGHT / 2);
var p4 = new SDL.SDL_Point(SDL_WINDOW_WIDTH, SDL_WINDOW_HEIGHT / 2);
var c = Color.White;
renderer.DrawLine(p1, p2, c);
renderer.DrawLine(p3, p4, c);
}
if (true)
{
// Draw a blue rect
var rect1 = new SDL.SDL_Rect(32, 32, 64, 64);
var c = Color.FromArgb(255, 0, 128, 128);
renderer.DrawFilledRect(rect1, c);
// Draw a translucent red rect
var rect2 = new SDL.SDL_Rect(rect1.x + 32, rect1.y + 32, rect1.w, rect1.h);
c = Color.FromArgb(128, 255, 0, 0);
renderer.DrawFilledRect(rect2, c);
// Outline it
c = Color.FromArgb(255, 255, 0, 0);
renderer.DrawRect(rect2, c);
// Draw a couple translucent lines over the rects
var p1 = new SDL.SDL_Point(rect1.x, rect1.x);
var p2 = new SDL.SDL_Point(p1.x + 64, p1.y + 64);
var p3 = new SDL.SDL_Point(p1.x + 32, p1.y + 64);
var p4 = new SDL.SDL_Point(p1.x + 64, p1.y + 32);
c = Color.FromArgb(128, 255, 255, 255);
renderer.DrawLine(p1, p2, c);
renderer.DrawLine(p3, p4, c);
}
if (true)
{
// Draw a yellow circle
var p1 = new SDL.SDL_Point(192, 64);
var c = Color.Yellow;
renderer.DrawFilledCircle(p1, 32, c);
// Draw a magenta circle
var p2 = new SDL.SDL_Point(p1.x + 32, p1.y + 32);
c = Color.FromArgb(128, 255, 0, 255);
renderer.DrawFilledCircle(p2, 32, c);
// Outline it
c = Color.FromArgb(255, 255, 0, 255);
renderer.DrawCircle(p2, 32, c);
}
if (true)
{
var c = Color.White;
// Blit the surface
var rect1 = new SDL.SDL_Rect(32, 192, surface.Width, surface.Height);
surface.ColorMod = c;
renderer.Blit(rect1, surface);
// Blit the texture
var rect2 = new SDL.SDL_Rect(rect1.x + surface.Width / 4, rect1.y + surface.Height / 4, rect1.w, rect1.h);
texture.ColorMod = c;
renderer.Blit(rect2, texture);
}
if (true)
{
// Don't do scene control in DrawScene, this is just an example
spinAngle += spinStep;
if (spinAngle > 360.0)
{
spinAngle -= 360.0;
}
// Orbit
var c = Color.FromArgb(255, 64, 64, 64);
renderer.DrawCircle(spinCentre, (int)spinDistance, c);
// Blit the surface as a sprite
BlitAsSprite(renderer, surface, spinAngle, surfaceColor);
// Blit the texture as a sprite
BlitAsSprite(renderer, texture, -spinAngle, textureColor);
}
if (true)
{
// Draw some text
const string text = "They're Pinky and the Brain!";
// Solid White Bold
var c = Color.White;
var p = new SDL.SDL_Point(32, 384);
renderer.DrawText(p, font, text, c, SDL_ttf.TTF_STYLE_BOLD);
// Alpha Red Italic
c = Color.FromArgb(128, 255, 0, 0);
p.y += 16;
renderer.DrawText(p, font, text, c, SDL_ttf.TTF_STYLE_ITALIC);
// Solid Green Strike-Through
c = Color.FromArgb(255, 0, 255, 0);
p.y += 16;
renderer.DrawText(p, font, text, c, SDL_ttf.TTF_STYLE_STRIKETHROUGH);
// Alpha Blue Underline
c = Color.FromArgb(128, 0, 0, 255);
p.y += 16;
renderer.DrawText(p, font, text, c, SDL_ttf.TTF_STYLE_UNDERLINE);
}
}