int __start() {
printf("-- boot complete -- \r\n");
refresh = 0;
old_img_addr = SRAM_BASEADDR;
new_img_addr = SRAM_BASEADDR + 0x80000;
clr_screen(old_img_addr);
clr_screen(new_img_addr);
draw_gun(0, 30);
/* blinker */
set_pixel(old_img_addr, 20, 10, 1);
set_pixel(old_img_addr, 20, 11, 1);
set_pixel(old_img_addr, 20, 12, 1);
/* another blinker */
set_pixel(old_img_addr, 30, 10, 1);
set_pixel(old_img_addr, 31, 10, 1);
set_pixel(old_img_addr, 32, 10, 1);
/* pixel alone, will die after the first iteration */
set_pixel(old_img_addr, 32, 30, 1);
/* start vga */
write_mem(VGA_BASEADDR + VGA_CFG_OFFSET, old_img_addr);
/* program timer: 0x01000000 / (50MHz) = 0.33554432 seconds */
write_mem(TIMER_BASEADDR + TIMER_0_TLR_OFFSET, 0x04000000);
write_mem(TIMER_BASEADDR + TIMER_0_CSR_OFFSET, TIMER_RELOAD);
write_mem(TIMER_BASEADDR + TIMER_0_CSR_OFFSET, TIMER_START);
/* program gpio to input */
write_mem(GPIO_BASEADDR + GPIO_TRI_OFFSET, GPIO_INPUT);
while (1) {
/* glider */
set_pixel(old_img_addr, 11, 10, 1);
set_pixel(old_img_addr, 12, 11, 1);
set_pixel(old_img_addr, 10, 12, 1);
set_pixel(old_img_addr, 11, 12, 1);
set_pixel(old_img_addr, 12, 12, 1);
/* another glider */
set_pixel(old_img_addr, 51, 10, 1);
set_pixel(old_img_addr, 50, 11, 1);
set_pixel(old_img_addr, 52, 12, 1);
set_pixel(old_img_addr, 51, 12, 1);
set_pixel(old_img_addr, 50, 12, 1);
while (1) {
uint32_t d = read_mem(GPIO_BASEADDR + GPIO_DATA_OFFSET);
if (TEST_BIT(d, GPIO_BTN0)) {
break;
}
// put cpu in a lower consumption state while waiting for an int
wait_for_irq();
//cpu_relax();
}
}
return 0;
}
void
GAME_Render()
{
LCD_SetTextColor( LCD_COLOR_WHITE );
draw_me(me1[0]);
draw_boss(boss1[0]);
LCD_SetTextColor( LCD_COLOR_RED );
draw_bossbullet(boss_bullet[0]);
draw_gun(boss1[0]);
LCD_SetTextColor( LCD_COLOR_BLUE );
draw_mybullet(my_bullet[0]);
LTDC_LayerAlpha(LTDC_Layer1, SHOW);
LTDC_LayerAlpha(LTDC_Layer2, HIDE);
LTDC_ReloadConfig(LTDC_VBReload);
vTaskDelay( 2.5 );
LCD_SetLayer(LCD_BACKGROUND_LAYER);
LCD_SetTextColor( LCD_COLOR_BLACK );
draw_me(me1[1]);
draw_boss(boss1[1]);
draw_gun(boss1[1]);
draw_mybullet(my_bullet[1]);
draw_bossbullet(boss_bullet[1]);
LCD_SetTextColor( LCD_COLOR_WHITE );
draw_me(me1[0]);
draw_boss(boss1[0]);
LCD_SetTextColor( LCD_COLOR_RED );
draw_bossbullet(boss_bullet[0]);
draw_gun(boss1[0]);
LCD_SetTextColor( LCD_COLOR_BLUE );
draw_mybullet(my_bullet[0]);
LTDC_LayerAlpha(LTDC_Layer2, SHOW);
LTDC_LayerAlpha(LTDC_Layer1, HIDE);
LTDC_ReloadConfig(LTDC_VBReload);
vTaskDelay( 2.5 );
LCD_SetLayer(LCD_FOREGROUND_LAYER);
LCD_SetTextColor( LCD_COLOR_BLACK );
draw_me(me1[0]);
draw_boss(boss1[0]);
draw_gun(boss1[0]);
draw_mybullet(my_bullet[0]);
draw_bossbullet(boss_bullet[0]);
boss_bullet[1]=boss_bullet[0];
my_bullet[1]=my_bullet[0];
me1[1]=me1[0];
boss1[1]=boss1[0];
}
