/* Draws sky with sun background */
void draw_sky(alt_up_pixel_buffer_dma_dev* pixel_buffer){
int color_inc = 0x0001;
int x0_pos = 0;
int x1_pos = 320;
int change = 4;
int y_pos;
// Draws sky
for(y_pos = 0; y_pos < 45; y_pos++) {
alt_up_pixel_buffer_dma_draw_hline(pixel_buffer, x0_pos, x1_pos, y_pos, 0xF800 + color_inc, 0);
if(y_pos % 3 == 0) color_inc++;
}
x0_pos = 155;
x1_pos = 165;
// Draws sun
for(y_pos = 37; y_pos < 45; y_pos++) {
alt_up_pixel_buffer_dma_draw_hline(pixel_buffer, x0_pos, x1_pos, y_pos, ORANGE, 0);
if(y_pos == 37 || y_pos == 39) change = 4;
else if(y_pos == 38) change = 3;
else change = 1;
x0_pos -= change; x1_pos += change;
}
}
void draw_boardwalk(alt_up_pixel_buffer_dma_dev* pixel_buffer) {
int i;
alt_up_pixel_buffer_dma_draw_box(pixel_buffer, 0, 45, 14, 240, 0x79E5, 0);
for(i = 45; i < 240; i+=4 ) {
alt_up_pixel_buffer_dma_draw_hline(pixel_buffer, 0, 14, i, BLACK, 0);
}
}
void draw_qnote_on_sheetmusic(alt_up_pixel_buffer_dma_dev * pixel_buffer, int pitch, int location)
// FUNCTION: Draws a quarter note with the given pitch at the given location to the back buffer
// REQUIRES: 0 <= pitch <= 7 && 0 <= location <= 15
// RETURNS: None
{
// Symbolic constants
int h_spacing = 18;
int first_note_left = 21;
int lowc_bottom = 153;
// Declare variables
int left, right, top, bottom;
left = first_note_left + location*h_spacing;
right = left + 8;
bottom = lowc_bottom - 5*pitch;
top = bottom - 6;
// Draw note with stem
alt_up_pixel_buffer_dma_draw_box(pixel_buffer, left, bottom, right, top, 0x0000, 1);
if(pitch<6) // Draw stem extending upwards
alt_up_pixel_buffer_dma_draw_vline(pixel_buffer, right, top, top-32, 0x0000, 1);
else // Draw stem extending downwards
alt_up_pixel_buffer_dma_draw_vline(pixel_buffer, left, bottom, bottom+32, 0x0000, 1);
// Check if the pitch is low C, and if so draw an extra horizontal line
if(pitch==0)
alt_up_pixel_buffer_dma_draw_hline(pixel_buffer, left-3, right+3, bottom-3, 0x0000, 1);
}
void prepareBackground(void){
alt_up_pixel_buffer_dma_clear_screen(pixel_buffer_dev, backbuffer); //Clear the backbuffer
//Main lines
alt_up_pixel_buffer_dma_draw_box(pixel_buffer_dev, 0, 0, 319, 239, BACKGROUNDCOLOR, backbuffer); //Make the backbuffer the correct color
alt_up_pixel_buffer_dma_draw_hline(pixel_buffer_dev, 12, 319, 226,SYSLINECOLOR, backbuffer); //Draw the horizontal sysline to the backbuffer
alt_up_pixel_buffer_dma_draw_vline(pixel_buffer_dev, 12, 0, 226,SYSLINECOLOR, backbuffer); //Draw the vertical line
}
void draw_correct_zone(alt_up_pixel_buffer_dma_dev* pixel_buffer, int CORRECT_ZONE_HEIGHT)
// FUNCTION: Draws the correct zone for the note game
// REQUIRES: 1 <= CORRECT_ZONE_HEIGHT <= 50
// RETURNS: None
{
int i;
alt_up_pixel_buffer_dma_draw_hline(pixel_buffer, 0, 319, 220-4*CORRECT_ZONE_HEIGHT, 0x0000, 1); // Top of the correct zone
for(i=0; i<320; i++)
{
alt_up_pixel_buffer_dma_draw_vline(pixel_buffer, i, 221-4*CORRECT_ZONE_HEIGHT, 219, 0xCCCC, 1);
}
alt_up_pixel_buffer_dma_draw_hline(pixel_buffer, 0, 319, 220, 0x0000, 1); // Bottom of the correct zone
}
void eraser_rb(alt_up_pixel_buffer_dma_dev* pixel_buffer, int location, int x_location, int CORRECT_ZONE_HEIGHT)
// FUNCTION: Draws over the note at the given location in the appropriate background colour to the backbuffer
// REQUIRES: 1 <= location <= 60 && 1 <= x_location <= 80 && 1 <= CORRECT_ZONE_HEIGHT <= 50
// RETURNS: None
{
if(location < 55 - CORRECT_ZONE_HEIGHT - 2) // location is completely outside of correct zone. Erase in blue background colour.
{
#if 1
// Draw double thickness square in blue background colour
alt_up_pixel_buffer_dma_draw_rectangle(pixel_buffer, x_location*4 - 9, location*4 - 12, x_location*4 + 11, location*4 + 8,0x122B, 1);
alt_up_pixel_buffer_dma_draw_rectangle(pixel_buffer, x_location*4 - 8, location*4 - 11, x_location*4 + 10, location*4 + 7,0x122B, 1);
alt_up_pixel_buffer_dma_draw_box(pixel_buffer, x_location*4 - 9, location*4 - 16, x_location*4 + 11, location*4 - 13,0x122B, 1);
#endif
#if 0
alt_up_pixel_buffer_dma_draw_box(pixel_buffer, x_location*4 - 9, location*4 - 16, x_location*4 + 11, location*4 + 10,0x122B, 1);
#endif
}
else // Some overlap with correct zone. Redraw a portion of the correct zone
{
#if 1
// Draw double thickness square in blue background colour
alt_up_pixel_buffer_dma_draw_rectangle(pixel_buffer, x_location*4 - 9, location*4 - 12, x_location*4 + 11, location*4 + 8,0x122B, 1);
alt_up_pixel_buffer_dma_draw_rectangle(pixel_buffer, x_location*4 - 8, location*4 - 11, x_location*4 + 10, location*4 + 7,0x122B, 1);
alt_up_pixel_buffer_dma_draw_box(pixel_buffer, x_location*4 - 9, location*4 - 16, x_location*4 + 11, location*4 - 13,0x122B, 1);
#endif
#if 0
// alt_up_pixel_buffer_dma_draw_box(pixel_buffer, x_location*4 - 9, location*4 - 16, x_location*4 + 11, location*4 + 10,0x122B, 1);
#endif
alt_up_pixel_buffer_dma_draw_hline(pixel_buffer, x_location*4 - 9, x_location*4 + 11, 220-4*CORRECT_ZONE_HEIGHT, 0x0000, 1); // Top of the correct zone
alt_up_pixel_buffer_dma_draw_box(pixel_buffer, x_location*4 - 9, 221-4*CORRECT_ZONE_HEIGHT, x_location*4 + 11, 219, 0xCCCC, 1); // Correct zone
alt_up_pixel_buffer_dma_draw_hline(pixel_buffer, x_location*4 - 9, x_location*4 + 11, 220, 0x0000, 1); // Bottom of the correct zone
}
}
void drawHelpLines(void){
//Redraw the indicationlines
//Smaller lines(horizontal)
int tPos;
for (tPos = 0; tPos < 228; tPos +=46){
alt_up_pixel_buffer_dma_draw_hline(pixel_buffer_dev, 12, 15, tPos,SYSLINECOLOR, backbuffer); //Draw a small horizontal line for indication
}
//Smaller lines (vertical)
for (tPos = 319; tPos > 31; tPos -=31){
alt_up_pixel_buffer_dma_draw_vline(pixel_buffer_dev, tPos, 223, 226,SYSLINECOLOR, backbuffer); //Draw a small vertical line for indication
}
}
/* Draws bullet with background color */
void draw_background_bullet(alt_up_pixel_buffer_dma_dev* pixel_buffer, int x_start, int y_start) {
int color_inc = 1;
int i;
for(i = 45; i < y_start; i++) {
if(i%8 == 0) color_inc++;
}
for(i = y_start; i <= y_start + 2; i++) {
alt_up_pixel_buffer_dma_draw_hline(pixel_buffer, x_start, x_start+12, i, BLACK + color_inc, 0);
if(i % 8 == 0) {
color_inc++;
}
}
}
void draw_sheetmusic()
{
// Symbolic constants
int x_indent = 16;
int y_indent = 100;
int space_height = (240 - 2*y_indent)/4;
// Declare variables
int i;
if(m == blank)
{
rb.background_flag = FALSE;
if(v.blank_flag == FALSE)
{
alt_up_pixel_buffer_dma_draw_box(v.pixel_buffer, 0, 0, 319, 239, 0xFFFF, 1); // White box to fill the back buffer
for(i=0; i<5; i++) // Draw 5 horizontal lines of the musical staff to the back buffer
alt_up_pixel_buffer_dma_draw_hline(v.pixel_buffer, x_indent-2, 320-(x_indent-2), y_indent+space_height*i, 0x0000, 1);
// Double bar line at the start
alt_up_pixel_buffer_dma_draw_box(v.pixel_buffer, x_indent-4, y_indent, x_indent-2, 240-y_indent, 0x0000, 1);
alt_up_pixel_buffer_dma_draw_vline(v.pixel_buffer, x_indent, y_indent, 240-y_indent, 0x0000, 1);
// Double bar line at the end
alt_up_pixel_buffer_dma_draw_box(v.pixel_buffer, 320-(x_indent-4), y_indent, 320-(x_indent-2), 240-y_indent, 0x0000, 1);
alt_up_pixel_buffer_dma_draw_vline(v.pixel_buffer, 320-x_indent, y_indent, 240-y_indent, 0x0000, 1);
// Three bar lines to divide the staff into four measures
alt_up_pixel_buffer_dma_draw_vline(v.pixel_buffer, (160+x_indent)/2, y_indent, 240-y_indent, 0x0000, 1);
alt_up_pixel_buffer_dma_draw_vline(v.pixel_buffer, 160, y_indent, 240-y_indent, 0x0000, 1);
alt_up_pixel_buffer_dma_draw_vline(v.pixel_buffer, (480-x_indent)/2, y_indent, 240-y_indent, 0x0000, 1);
// Draw some notes: C major scale
draw_qnote_on_sheetmusic(v.pixel_buffer, 0, 0);
draw_qnote_on_sheetmusic(v.pixel_buffer, 1, 1);
draw_qnote_on_sheetmusic(v.pixel_buffer, 2, 2);
draw_qnote_on_sheetmusic(v.pixel_buffer, 3, 3);
draw_qnote_on_sheetmusic(v.pixel_buffer, 4, 4);
draw_qnote_on_sheetmusic(v.pixel_buffer, 5, 5);
draw_qnote_on_sheetmusic(v.pixel_buffer, 6, 6);
draw_qnote_on_sheetmusic(v.pixel_buffer, 7, 7);
draw_qnote_on_sheetmusic(v.pixel_buffer, 7, 8);
draw_qnote_on_sheetmusic(v.pixel_buffer, 6, 9);
draw_qnote_on_sheetmusic(v.pixel_buffer, 5, 10);
draw_qnote_on_sheetmusic(v.pixel_buffer, 4, 11);
draw_qnote_on_sheetmusic(v.pixel_buffer, 3, 12);
draw_qnote_on_sheetmusic(v.pixel_buffer, 2, 13);
draw_qnote_on_sheetmusic(v.pixel_buffer, 1, 14);
draw_qnote_on_sheetmusic(v.pixel_buffer, 0, 15);
// Blue box and message near top of the screen
alt_up_pixel_buffer_dma_draw_box(v.pixel_buffer, 100, 26, 220, 40, 0x122B, 1);
alt_up_char_buffer_clear(v.char_buffer);
alt_up_char_buffer_string(v.char_buffer, "Waiting for user input...", 28, 8);
v.blank_flag = TRUE;
// Swap buffers
alt_up_pixel_buffer_dma_swap_buffers(v.pixel_buffer);
while (alt_up_pixel_buffer_dma_check_swap_buffers_status(v.pixel_buffer));
}
}
}
