/*
Draw the background of the screen.
This fills the background with black
Then puts some random colour on it
Then demos various ways of drawing shapes, images, etc
*/
void BouncingBallMain::SetupBackgroundBuffer()
{
FillBackground( 0 );
for ( int iX = 0 ; iX < GetScreenWidth() ; iX++ )
for ( int iY = 0 ; iY < this->GetScreenHeight() ; iY++ )
switch( rand()%100 )
{
case 0: SetBackgroundPixel( iX, iY, 0xFF0000 ); break;
case 1: SetBackgroundPixel( iX, iY, 0x00FF00 ); break;
case 2: SetBackgroundPixel( iX, iY, 0x0000FF ); break;
case 3: SetBackgroundPixel( iX, iY, 0xFFFF00 ); break;
case 4: SetBackgroundPixel( iX, iY, 0x00FFFF ); break;
case 5: SetBackgroundPixel( iX, iY, 0xFF00FF ); break;
}
DrawBackgroundVerticalSidedRegion( 650, 750, // X
100, 50, // Top line
150, 180, // Bottom line
0xff0000 );
int iLineThickness = 2;
// Draw a triangle where all three points are specified.
DrawBackgroundTriangle( 300,300, 325,275, 350,350, 0x00ffff );
DrawBackgroundTriangle( 425,375, 450,450, 400,375, 0x00ffff );
DrawBackgroundTriangle( 550,550, 525,475, 450,500, 0x00ffff );
// Draw various polygons
// DrawBackgroundPolygon( 100, 100, 150, 100, 250, 200, 150, 200, 0xff0000 );
// DrawBackgroundPolygon( 100, 300, 200, 275, 300, 325, 250, 400, 150, 375, 0x00ff00 );
// DrawBackgroundPolygon( 400, 100, 500, 150, 600, 100, 550, 200, 450, 200, 400, 250, 0x0000ff );
// Draw a polygon and some lines joining the points.
DrawBackgroundPolygon( 100, 100, 150, 100,
250, 200, 150, 200,
100, 300, 200, 275,
300, 325, 50, 400, 0xff00ff );
DrawBackgroundLine( 100, 100, 150, 100, 0xffffff );
DrawBackgroundLine( 150, 100, 250, 200, 0xffffff );
DrawBackgroundLine( 250, 200, 150, 200, 0xffffff );
DrawBackgroundLine( 150, 200, 100, 300, 0xffffff );
DrawBackgroundLine( 100, 300, 200, 275, 0xffffff );
DrawBackgroundLine( 200, 275, 300, 325, 0xffffff );
DrawBackgroundLine( 300, 325, 50, 400, 0xffffff );
DrawBackgroundLine( 50, 400, 100, 100, 0xffffff );
DrawBackgroundPolygon( 350, 100, 500, 150,
600, 100, 550, 200,
450, 200, 400, 250,
410, 180, 0x00ff00 );
DrawBackgroundLine( 350, 100, 500, 150, 0xffffff );
DrawBackgroundLine( 500, 150, 600, 100, 0xffffff );
DrawBackgroundLine( 600, 100, 550, 200, 0xffffff );
DrawBackgroundLine( 550, 200, 450, 200, 0xffffff );
DrawBackgroundLine( 450, 200, 400, 250, 0xffffff );
DrawBackgroundLine( 400, 250, 410, 180, 0xffffff );
DrawBackgroundLine( 410, 180, 350, 100, 0xffffff );
// Draw an image loaded from a file.
ImageData im, im2;
// Load the image file into an image object - at the normal size
im2.LoadImage( "demo.png" );
// Create a second image from the first, by halving the size
im.ShrinkFrom( &im2, 2 );
// Note: image loaded only once, above, and now we will draw it nine times
#if 0
for ( int i = 0 ; i < 3 ; i++ )
for ( int j = 0 ; j < 3 ; j++ )
im.RenderImageWithMask( this->GetBackground(),
0, 0,
i*100, j*100 + 300,
im.GetWidth(), im.GetHeight() );
#endif
// Well done if you are reading this since it means that you bothered to go through the source code.
// Here is an example of drawing an image rotated, or with changed brightness, different transparency position, etc.
// Change the #if 0 to #if 1, and possibly comment out the code above:
#if 1
for ( int i = 0; i < 3; i++ )
for ( int j = 0; j < 3; j++ )
im.FlexibleRenderImageWithMask( this->GetBackground(),
0,0, // x and y source
i * 100,j * 100 + 300, // x and y dest
im.GetWidth(),im.GetHeight(), // Height and width to copy
i + j, // Rotation value
0, 0, // Transparency pixel - which pixel gives transparency colour, or use -1,-1 for no transparency
100+(i-j)*20, // Brightness percentage
-1, // 0x00ff00, // Alternate pixels
-1, // 0x0000ff, // Every third pixel
-1, // 0xffffff, // Every fourth pixel
i == 0 ? -1 : 0x404040 * i // Average with this colour
);
#endif
// Draw some tiles using the tile manager
// Specify how many tiles wide and high
obTileManager.SetSize( 10, 10 );
// Specify the screen x,y of top left corner
obTileManager.SetBaseTilesPositionOnScreen( 450,300 );
// Tell it to draw tiles from x1,y1 to x2,y2 in tile array,
// to the background of this screen
obTileManager.DrawAllTiles( this,this->GetBackground(),0,0,9,9 );
}
/*
Draw the background of the screen.
This fills the background with black
Then puts some random colour on it
Then demos various ways of drawing shapes, images, etc
*/
void BouncingBallMain::SetupBackgroundBuffer()
{
FillBackground( 0 );
for ( int iX = 0 ; iX < GetScreenWidth() ; iX++ )
for ( int iY = 0 ; iY < this->GetScreenHeight() ; iY++ )
switch( rand()%100 )
{
case 0: SetBackgroundPixel( iX, iY, 0xFF0000 ); break;
case 1: SetBackgroundPixel( iX, iY, 0x00FF00 ); break;
case 2: SetBackgroundPixel( iX, iY, 0x0000FF ); break;
case 3: SetBackgroundPixel( iX, iY, 0xFFFF00 ); break;
case 4: SetBackgroundPixel( iX, iY, 0x00FFFF ); break;
case 5: SetBackgroundPixel( iX, iY, 0xFF00FF ); break;
}
DrawBackgroundVerticalSidedRegion( 650, 750, // X
100, 50, // Top line
150, 180, // Bottom line
0xff0000 );
int iLineThickness = 2;
// Draw a triangle where all three points are specified.
DrawBackgroundTriangle( 300,300, 325,275, 350,350, 0x00ffff );
DrawBackgroundTriangle( 425,375, 450,450, 400,375, 0x00ffff );
DrawBackgroundTriangle( 550,550, 525,475, 450,500, 0x00ffff );
// Draw various polygons
// DrawBackgroundPolygon( 100, 100, 150, 100, 250, 200, 150, 200, 0xff0000 );
// DrawBackgroundPolygon( 100, 300, 200, 275, 300, 325, 250, 400, 150, 375, 0x00ff00 );
// DrawBackgroundPolygon( 400, 100, 500, 150, 600, 100, 550, 200, 450, 200, 400, 250, 0x0000ff );
// Draw a polygon and some lines joining the points.
DrawBackgroundPolygon( 100, 100, 150, 100,
250, 200, 150, 200,
100, 300, 200, 275,
300, 325, 50, 400, 0xff00ff );
DrawBackgroundLine( 100, 100, 150, 100, 0xffffff );
DrawBackgroundLine( 150, 100, 250, 200, 0xffffff );
DrawBackgroundLine( 250, 200, 150, 200, 0xffffff );
DrawBackgroundLine( 150, 200, 100, 300, 0xffffff );
DrawBackgroundLine( 100, 300, 200, 275, 0xffffff );
DrawBackgroundLine( 200, 275, 300, 325, 0xffffff );
DrawBackgroundLine( 300, 325, 50, 400, 0xffffff );
DrawBackgroundLine( 50, 400, 100, 100, 0xffffff );
DrawBackgroundPolygon( 350, 100, 500, 150,
600, 100, 550, 200,
450, 200, 400, 250,
410, 180, 0x00ff00 );
DrawBackgroundLine( 350, 100, 500, 150, 0xffffff );
DrawBackgroundLine( 500, 150, 600, 100, 0xffffff );
DrawBackgroundLine( 600, 100, 550, 200, 0xffffff );
DrawBackgroundLine( 550, 200, 450, 200, 0xffffff );
DrawBackgroundLine( 450, 200, 400, 250, 0xffffff );
DrawBackgroundLine( 400, 250, 410, 180, 0xffffff );
DrawBackgroundLine( 410, 180, 350, 100, 0xffffff );
// Draw an image loaded from a file.
ImageData im, im2;
im2.LoadImage( "demo.png" );
im.ShrinkFrom( &im2, 2 );
// Note: image loaded only once, above, and now we will draw it nine times
for ( int i = 0 ; i < 3 ; i++ )
for ( int j = 0 ; j < 3 ; j++ )
im.RenderImageWithMask( this->GetBackground(),
0, 0,
i*100, j*100 + 300,
im.GetWidth(), im.GetHeight() );
// Draw some tiles using the tile manager
// Specify how many tiles wide and high
m.SetSize( 10, 10 );
// Specify the screen x,y of top left corner
m.SetBaseTilesPositionOnScreen( 450, 300 );
// Tell it to draw tiles from x1,y1 to x2,y2 in tile array,
// to the background of this screen
m.DrawAllTiles( this, this->GetBackground(), 0, 0, 9, 9 );
}
