void instructions() {
REG_DISPCTL = MODE4 | BG2_ENABLE;
loadPalette(instructionsPal);
drawBackgroundImage4(instructionsBitmap);
while(!BUTTON_HELD(BUTTON_B));
playSoundB(menuSound, MENUSOUNDLEN, MENUSOUNDFREQ, 0);
state = SPLASH;
}
void game() {
// Reset running motion in case user stops pressing arrow key
player.isRunning = 0;
// Running/moving speed
if (player.frameCount % 4 == 0) {
changeFrame();
}
// Button Handling
if (BUTTON_PRESSED(BUTTON_A)) {
// Only jump if player is not already jumping
if (canJump && checkCollision()) {
canJump = 0;
player.isJumping = 1;
jumpFrameCounter = 30;
playSoundB(jumpSound, JUMPSOUNDLEN, JUMPSOUNDFREQ, 0);
jump();
}
}
if (BUTTON_PRESSED(BUTTON_B)) {
vBlankCount = 100;
prevSeason = season;
playSoundB(warpSound, WARPSOUNDLEN, WARPSOUNDFREQ, 0);
state = SEASONCHANGE;
}
if (BUTTON_PRESSED(BUTTON_START)) {
REG_DISPCTL ^= BG0_ENABLE;
pauseSound();
state = PAUSE;
}
// Change to neutral season - CHEAT MODE
if (BUTTON_HELD(BUTTON_R) && BUTTON_HELD(BUTTON_L) && BUTTON_HELD(BUTTON_SELECT)) {
vBlankCount = 100;
prevSeason = -1;
playSoundB(warpSound, WARPSOUNDLEN, WARPSOUNDFREQ, 0);
state = SEASONCHANGE;
}
if (BUTTON_HELD(BUTTON_RIGHT)) {
player.isRunning = 1;
player.facing = 0;
player.deltaCol = 1;
if (hOff < 272 && player.col >= 120 - player.height / 2) {
hOff += player.deltaCol;
}
else if (player.col < 240 - player.width) {
player.col += player.deltaCol;
}
}
if (BUTTON_HELD(BUTTON_LEFT)) {
player.isRunning = 1;
player.facing = 1;
player.deltaCol = -1;
if (hOff > 0 && player.col < 120 - player.width / 2) {
hOff += player.deltaCol;
}
else if (player.col > 0) {
player.col += player.deltaCol;
}
}
// End of button handling
// Jump handling
if (player.isJumping) {
jump();
}
/*
if (!canJump && hOff < 272) {
player.col += player.deltaCol;
}
*/
// Gravity and Collision
if (!checkCollision() || player.isJumping) {
player.isRunning = 0; // Stop running animation
/*if (vOff <= 96 && player.row >= 80 - player.height / 2) { */
vOff += player.deltaRow;
//}
if (player.row < 160) {
player.row += player.deltaRow;
}
else {
state = LOSE;
}
}
else {
canJump = 1;
player.deltaCol = 0;
}
// Gem collision detection - player wins current level
if (checkWinCollision()) {
playSoundB(winLevelSound, WINLEVELSOUNDLEN, WINLEVELSOUNDFREQ, 0);
state = WINLEVEL;
}
// Standing still animation
if (!player.isRunning) {
player.currentFrame = 0;
}
// Running animation
if (player.isRunning) {
player.frameCount++;
}
// Seasonal BG1 Animations
switch (season) {
case FALL:
bg1VOff--;
break;
case WINTER:
bg1HOff--;
bg1VOff--;
break;
}
}
int main(void)
{
while(1)
{
previousSpriteState = spriteState;
pollKeys();
enableSounds();
setupInterrupts();
switch(state)
{
case SPLASH:
{
REG_DISPCNTL = BG2_ENABLE | MODE3;
fillPicture((u16 *)splashBitmap);
if (BUTTON_PRESSED(START_BUTTON))
{
state = GAME;
}
if (BUTTON_PRESSED(SELECT_BUTTON))
{
state = INSTRUCTIONS;
}
break;
}
case INSTRUCTIONS:
{
fillPicture((u16 *)instructionsBitmap);
if (BUTTON_PRESSED(SELECT_BUTTON))
{
state = SPLASH;
}
break;
}
case GAME:
{
//load tiles
DMA_MEMORY[3].source = backgroundTiles;
DMA_MEMORY[3].destination = &CHARBLOCK[0];
DMA_MEMORY[3].control = 12000 | DMA_ON;
//load map
DMA_MEMORY[3].source = backgroundMap;
DMA_MEMORY[3].destination = &SCREENBLOCK[27];
DMA_MEMORY[3].control = 4096 | DMA_ON;
//load pallette
DMA_MEMORY[3].source = backgroundPal;
DMA_MEMORY[3].destination = PAL_MEM;
DMA_MEMORY[3].control = 256 | DMA_ON;
//load the sprites into memory
DMA_MEMORY[3].source = playerTiles;
DMA_MEMORY[3].destination = &CHARBLOCK[4];
DMA_MEMORY[3].control = 16384 | DMA_ON;
DMA_MEMORY[3].source = playerPal;
DMA_MEMORY[3].destination = SPRITE_PALETTE;
DMA_MEMORY[3].control = 256 | DMA_ON;
//Hide all sprites
int i;
for(i=0; i<128; i++)
{
OAM[i].attr0 |= ATTR0_HIDE;
}
//Set Mode 0 BG 0 and Enable sprites. then set up the sprites
REG_DISPCNTL = MODE0 | BG0_ENABLE | SPRITE_ENABLE;
REG_BG0CNT = BG_8BPP | BG_REG_64x64 | CBB(0) | SBB(27);
REG_TM0CNT = 0;
DMA[1].cnt = 0;
REG_TM0D = timerintervalA;
REG_TM0CNT = TIMER_ON;
DMA[1].src = bgsound;
DMA[1].dst = REG_FIFO_A;
DMA[1].cnt = DMA_ON | START_ON_FIFO_EMPTY |
DMA_32 | DMA_REPEAT |
DMA_DESTINATION_FIXED;
startA = vblankcountA;
while(1){
shadowOAM[0].attr0 = (playerRow & MASKROW) | ATTR0_TALL | ATTR0_REGULAR | ATTR0_8BPP;
shadowOAM[0].attr1 = (playerCol & MASKCOL)| ATTR1_SIZE32;
shadowOAM[0].attr2 = (SPRITEOFFSET16(0,0));
shadowOAM[1].attr0 = badguyRow | ATTR0_TALL | ATTR0_REGULAR | ATTR0_8BPP;
shadowOAM[1].attr1 = badguyCol | ATTR1_SIZE32;
shadowOAM[1].attr2 = (SPRITEOFFSET16(0,8));
pollKeys();
bigRow = playerRow + vOff;
bigCol = playerCol + hOff;
switch(spriteState)
{
case STILL:
{
shadowOAM[0].attr2 = (SPRITEOFFSET16(0,0));
break;
}
case MOVING:
{
if((walkCounter%2)==1)
shadowOAM[0].attr2 = (SPRITEOFFSET16(0,4));
else if((walkCounter%2==0))
{
shadowOAM[0].attr2 = (SPRITEOFFSET16(0,0));
}
break;
}
}
if(BUTTON_HELD(A_BUTTON) && BUTTON_HELD(B_BUTTON))
{
//load tiles
DMA_MEMORY[3].source = cheatbackgroundTiles;
DMA_MEMORY[3].destination = &CHARBLOCK[0];
DMA_MEMORY[3].control = 11456 | DMA_ON;
//load map
DMA_MEMORY[3].source = cheatbackgroundMap;
DMA_MEMORY[3].destination = &SCREENBLOCK[27];
DMA_MEMORY[3].control = 4096 | DMA_ON;
//load pallette
DMA_MEMORY[3].source = cheatbackgroundPal;
DMA_MEMORY[3].destination = PAL_MEM;
DMA_MEMORY[3].control = 256 | DMA_ON;
}
if (BUTTON_HELD(RIGHT_BUTTON))
{
spriteState=MOVING;
walkCounter++;
if(collisionmapBitmap[((bigRow+playerHeight)*collMapSize)+(bigCol+playerCVel+playerWidth)]==WHITE)
{
if(playerCol<(SCREEN_WIDTH-(playerWidth+5))){
playerCol+=playerCVel;
}
else if(hOff<(collMapSize-SCREEN_WIDTH))
{
hOff+=playerCVel;
}
}
}
if (BUTTON_HELD(LEFT_BUTTON))
{
spriteState=MOVING;
walkCounter++;
if(collisionmapBitmap[((bigRow+playerHeight)*collMapSize)+(bigCol+playerCVel)]==WHITE)
{
if(playerCol>(0))
{
playerCol-=playerCVel;
}
else if(hOff>(SCREEN_WIDTH-collMapSize))
{
hOff-=playerCVel;
}
}
}
if (BUTTON_HELD(UP_BUTTON))
{
spriteState=MOVING;
walkCounter++;
//Check collision and move
if((collisionmapBitmap[(((bigRow-playerRVel)*collMapSize)+(bigCol+playerWidth))]==WHITE)&&
(collisionmapBitmap[(((bigRow-playerRVel)*collMapSize)+(bigCol))]==WHITE))
{
if(playerRow>30)
{
playerRow-=playerRVel;
}
else if(vOff>0)
{
vOff-=playerRVel;
}
}
}
if (BUTTON_HELD(DOWN_BUTTON))
{
spriteState=MOVING;
walkCounter++;
//Check collision and move
if((collisionmapBitmap[(((bigRow+playerHeight+playerRVel)*collMapSize)+(bigCol+playerWidth))]==WHITE)&&
(collisionmapBitmap[(((bigRow+playerHeight+playerRVel)*collMapSize)+(bigCol))]==WHITE))
{
if(playerRow<(SCREEN_HEIGHT-(playerHeight)))
{
playerRow+=playerRVel;
}
else if(vOff<(collMapSize-SCREEN_HEIGHT))
{
vOff+=playerRVel;
}
if((playerRow > 440) && (playerCol > 464))
{
state = WIN;
}
}
}
if (BUTTON_PRESSED(START_BUTTON))
{
REG_TM1CNT = 0;
DMA[2].cnt = 0;
REG_TM1D = timerintervalB;
REG_TM1CNT = TIMER_ON;
DMA[2].src = bark;
DMA[2].dst = REG_FIFO_B;
DMA[2].cnt = DMA_ON | START_ON_FIFO_EMPTY |
DMA_32 | DMA_REPEAT |
DMA_DESTINATION_FIXED;
startB = vblankcountB;
}
if (BUTTON_PRESSED(SELECT_BUTTON))
{
//waitForNoKey();
state = PAUSE;
}
waitForVBlank();
OAM[0] = shadowOAM[0];
OAM[1] = shadowOAM[1];
REG_BG0HOFS = hOff;
REG_BG0VOFS = vOff;
}
}
case WIN:
{
while(1);
}
case PAUSE:
{
if(BUTTON_PRESSED(SELECT_BUTTON))
{
state=GAME;
}
}
}
}
return 0;
}
