static void draw_star(struct star * star, int z_move)
{
int x_draw, y_draw;
x_draw = star->x / star->z + SCREEN_WIDTH / 2;
if(x_draw < 1 || x_draw >= SCREEN_WIDTH)
{
init_star(star, z_move);
return;
}
y_draw = star->y / star->z + SCREEN_HEIGHT/2;
if(y_draw < 1 || y_draw >= SCREEN_HEIGHT)
{
init_star(star, z_move);
return;
}
putPixelScreen(RGB(255, 255, 255), x_draw, y_draw);
if(star->z < 5*Z_MAX_DIST/6)
{
putPixelScreen(RGB(255, 255, 255), x_draw, y_draw-1);
putPixelScreen(RGB(255, 255, 255), x_draw-1, y_draw);
if(star->z < Z_MAX_DIST/2)
{
putPixelScreen(RGB(255, 255, 255), x_draw+1, y_draw);
putPixelScreen(RGB(255, 255, 255), x_draw, y_draw+1);
}
}
}
int video_thread(SceSize args, void *argp) {
// Pixel coordinates: first = first luminant pixel to breach threshhold, last = ..., mid = ...
Coord first, last, mid;
int bufsize; int threshold = 200; // Luminance threshold.
int showvideo = 0; // Show the actual video input? 0: No, 1: Yes
// Camera buffers.
PspUsbCamSetupVideoParam videoparam;
static u8 buffer[MAX_STILL_IMAGE_SIZE] __attribute__((aligned(64)));
static u8 work[68*1024] __attribute__((aligned(64)));
static u32 framebuffer[480*272] __attribute__((aligned(64)));
// Startup cursor position.
cursor.x = 237, cursor.y = 50; old.x = 237, old.y = 50;
// Setup the screenmap size and position.
screenmap.x = 20; screenmap.y = 200;
screenmap.w = 60; screenmap.h = 60;
screenmap.gridcolor = 0xFFC09090;
screenmap.fillcolor = 0xFFF0F0F0;
screenmap.selcolor = 0xFFC0FFFF;
// Create a start button.
Button btnStart;
btnStart.x = 420; btnStart.y = 250;
btnStart.w = 50; btnStart.h = 12;
btnStart.fillcolor = 0xFF00FFFF;
btnStart.textcolor = 0xFF000000;
btnStart.bordercolor = 0xFF000000;
btnStart.shadowcolor = 0xFF888888;
btnStart.bordersize = 1;
btnStart.borderbevel = 0;
btnStart.shadowsize = 0;
btnStart.shadowdistance = 0;
strcpy(btnStart.text, "Start");
strcpy(btnStart.name, "btnStart");
// Wait for camera to be connected.
while (!connected) {
clearScreen(0xFFF0F0F0);
printTextScreenCenter(132, "Please connect the camera and press any button.", 0xFF009900);
flipScreen(); sceDisplayWaitVblankStart();
sceKernelDelayThread(20000);
}
// Load the camera modules and start the decoder.
if (LoadModules() < 0) sceKernelSleepThread();
if (StartUsb() < 0) sceKernelSleepThread();
if (sceUsbActivate(PSP_USBCAM_PID) < 0) sceKernelSleepThread();
if (InitJpegDecoder() < 0) sceKernelSleepThread();
while (1) {
if ((sceUsbGetState() & 0xF) == PSP_USB_CONNECTION_ESTABLISHED) break;
sceKernelDelayThread(50000);
}
//Setup video parameters and start video capture.
memset(&videoparam, 0, sizeof(videoparam));
videoparam.size = sizeof(videoparam);
videoparam.resolution = PSP_USBCAM_RESOLUTION_480_272;
videoparam.framerate = PSP_USBCAM_FRAMERATE_30_FPS;
videoparam.wb = PSP_USBCAM_WB_INCANDESCENT;
videoparam.saturation = 125;
videoparam.brightness = 100;
videoparam.contrast = 64;
videoparam.sharpness = 0;
videoparam.effectmode = PSP_USBCAM_EFFECTMODE_NORMAL;
videoparam.framesize = MAX_VIDEO_FRAME_SIZE;
videoparam.evlevel = PSP_USBCAM_EVLEVEL_0_0;
if (sceUsbCamSetupVideo(&videoparam, work, sizeof(work)) < 0) sceKernelExitDeleteThread(0);
sceUsbCamAutoImageReverseSW(1);
if (sceUsbCamStartVideo() < 0) sceKernelExitDeleteThread(0);
while (running) {
int i, j, lum = 0, tracking = 0;
first.x = 0; first.y = 0; last.x = 0; last.y = 0; mid.x = old.x; mid.y = old.y;
clearScreen(0xFFFFFFFF);
// Capture the camera image into the framebuffer.
bufsize = sceUsbCamReadVideoFrameBlocking(buffer, MAX_VIDEO_FRAME_SIZE);
if (bufsize > 0) sceJpegDecodeMJpeg(buffer, bufsize, framebuffer, 0);
// Analyze the camera image.
for (i = 0; i < 272; i++) {
for (j = 0; j < 480; j++) {
if (showvideo) putPixelScreen(framebuffer[i * CAM_LINE_SIZE + j], j, i); // Show video input.
// Calculate luminance (brightness as perceived by the eye) and compare versus threshhold.
lum = (299 * R(framebuffer[i * CAM_LINE_SIZE + j]) + 587 * G(framebuffer[i * CAM_LINE_SIZE + j]) + 114 * B(framebuffer[i * CAM_LINE_SIZE + j])) / 1000;
if (lum > threshold) {
tracking = 1; if (aligned) putPixelScreen(0xFF0000FF, j, i);
if ((first.x == 0) || (j < first.x)) first.x = j;
if ((first.y == 0) || (i < first.y)) first.y = i;
if ((last.x == 0) || (j > last.x)) last.x = j;
if ((last.y == 0) || (i > last.y)) last.y = i;
}
}
}
if (tracking) {
// Calculate directional movement and determine cursor position.
mid.x = first.x + (abs((last.x - first.x)) / 2); mid.y = first.y + (abs((last.y - first.y)) / 2);
checkDirection(mid, old);
switch (direction) {
case 0: cursor.x = old.x; cursor.y = old.y; break;
case 1: cursor.x = first.x; cursor.y = first.y + (abs((last.y - first.y)) / 2); break;
case 2: cursor.x = first.x; cursor.y = first.y; break;
case 3: cursor.x = first.x + (abs((last.x - first.x)) / 2); cursor.y = first.y; break;
case 4: cursor.x = last.x; cursor.y = first.y; break;
case 5: cursor.x = last.x; cursor.y = first.y + (abs((last.y - first.y)) / 2); break;
case 6: cursor.x = last.x; cursor.y = last.y; break;
case 7: cursor.x = first.x + (abs((last.x - first.x)) / 2); cursor.y = last.y; break;
case 8: cursor.x = first.x; cursor.y = last.y; break;
};
//Uncomment the following lines to draw 'directional' markers on screen.
/*if ((abs(last.x - first.x) > 15) || (abs(last.y - first.y) > 15)) {
if ((direction > 0) && (direction <= 4)) {
drawLineScreen(first.x, first.y, last.x, last.y, 0xFFC0C0C0);
} else {
drawLineScreen(last.x, last.y, first.x, first.y, 0xFFC0C0C0);
}
switch (direction) {
case 0: break;
case 1: drawLineScreen(last.x, last.y + ((last.y - first.y) / 2), first.x, first.y + ((last.y - first.y) / 2), 0xFFC0C0C0); break; // W
case 2: drawLineScreen(last.x, last.y, first.x, first.y, 0xFFC0C0C0); break; // NW
case 3: drawLineScreen(first.x + ((last.x - first.x) / 2), last.y, first.x + ((last.x - first.x) / 2), first.y, 0xFFC0C0C0); break; // N
case 4: drawLineScreen(first.x, last.y, last.x, first.y, 0xFFC0C0C0); break; // NE
case 5: drawLineScreen(first.x, first.y + ((last.y - first.y) / 2), last.x, first.y + ((last.y - first.y) / 2), 0xFFC0C0C0); break; // E
case 6: drawLineScreen(first.x, first.y, last.x, last.y, 0xFFC0C0C0); break; // SE
case 7: drawLineScreen(first.x + ((last.x - first.x) / 2), first.y, first.x + ((last.x - first.x) / 2), last.y, 0xFFC0C0C0); break; // S
case 8: drawLineScreen(last.x, first.y, first.x, last.y, 0xFFC0C0C0); break; // SW
};
drawLineScreen((first.x > last.x) ? last.x : first.x, (first.y > last.y) ? last.y : first.y, (first.x < last.x) ? last.x : first.x, (first.y < last.y) ? last.y : first.y, 0xFFC0C0C0);
} else {
drawRectScreen(0xFFC0C0C0, first.x, first.y, last.x - first.x, last.y - first.y);
}*/
} else {
printTextScreenCenter(10, "Please return to the playing area.", 0xFF0000FF);
if (lastdirection == 0) { cursor.x = old.x; cursor.y = old.y; }
//if ((aligned) && (!menu) && (_gameState = GAME_RUNNING)) HandlePauseGame();
}
if (!aligned) {
showvideo = 1;
// Alignment Screen: wait for camera to be aligned to the playing area.
printTextScreenCenter(126, "Please align the camera to the playing area.", 0xFFFFFFFF);
printTextScreenCenter(136, "Drag the cursor to the \"Start\" button to continue.", 0xFFFFFFFF);
if (checkCoordButton(cursor, btnStart)) { btnStart.fillcolor = 0xFF00FF00; aligned = 1; menu = 1; }
drawButtonScreen(btnStart);
if (aligned) { btnStart.fillcolor = 0xFF00FFFF; btnStart.x = 240 - (btnStart.w / 2); btnStart.y = 200; }
} else if (menu) {
showvideo = 0;
// Menu Screen: show a splash, logo, menu, etc.
printTextScreenCenter(126, "eyePSP Pong", 0xFF009900);
printTextScreenCenter(136, "Please press the \"Start\" button to continue.", 0xFFFF0000);
if (checkCoordButton(cursor, btnStart)) { btnStart.fillcolor = 0xFFC0FFC0; menu = 0; }
drawButtonScreen(btnStart);
} else {
// Draw any game objects here.
if (_gameState == GAME_PAUSED) {
printTextScreenCenter(100, "Game Paused", COLOR_RED);
if (tracking) _gameState = GAME_RUNNING;
} else if (_gameState == GAME_RUNNING) {
DrawMainText(); // Draw main graphics and supporting text to the screen.
DrawPaddle(&_paddle); // Draws the paddle to the screen
} else if (_gameState == GAME_CONTINUE) {
char sbuffer[50];
sprintf(sbuffer, "%d Ball%s Remaining...", _resBalls, (_resBalls == 1) ? "" : "s");
printTextScreenCenter(100, sbuffer, 0xFF000088);
if (checkCoordButton(cursor, btnStart)) { btnStart.fillcolor = 0xFFC0FFC0; _gameState = GAME_RUNNING; }
drawButtonScreen(btnStart);
} else if (_gameState == GAME_OVER) {
// Draws game over graphics and waits for user to continue
DrawGameOverMenu();
if (checkCoordButton(cursor, btnStart)) { btnStart.fillcolor = 0xFFC0FFC0; _gameState = GAME_RUNNING; }
drawButtonScreen(btnStart);
}
}
// Draw cursor (within boundaries) .
if (tracking) {
for (i = cursor.y - 5; i <= cursor.y + 5; i++) { if ((i > 0) && (i < 272)) putPixelScreen(!tracking ? 0xFF0000FF : 0xFF009900, cursor.x, i); } // y-axis
for (j = cursor.x - 5; j <= cursor.x + 5; j++) { if ((j > 0) && (j < 480)) putPixelScreen(!tracking ? 0xFF0000FF : 0xFF009900, j, cursor.y); } // x-axis
}
old.x = cursor.x; old.y = cursor.y; lastdirection = direction;
flipScreen(); sceDisplayWaitVblankStart();
sceKernelDelayThread(2000);
}
sceKernelExitDeleteThread(0);
return 0;
}
