Skip to content

Commit

Permalink
Add sounds, make more stuff camelCase
Browse files Browse the repository at this point in the history
  • Loading branch information
@epbarger
epbarger committed Feb 10, 2023
1 parent 92e4698 commit 01da377
Showing 1 changed file with 100 additions and 42 deletions.
142 changes: 100 additions & 42 deletions main.c
View file
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/*
Better Button Test v2
Better Button Test v3
GBDK 2020 for Game Boy
*/

Expand All @@ -10,17 +10,17 @@
#include <gbdk/console.h>
#include <gbdk/font.h>

#define MIN(x,y) ((x) > (y) ? (y) : (x))
#define MAX(x,y) ((x) < (y) ? (y) : (x))

// Keys
uint8_t previousKeys = 0;
int8_t keys = 0;
#define UPDATE_KEYS() previousKeys = keys; keys = joypad()
#define KEY_PRESSED(K) (keys & (K))
#define KEY_TICKED(K) ((keys & (K)) && !(previousKeys & (K)))
#define KEY_RELEASED(K) (!(keys & (K)) && (previousKeys & (K)))

// Global Variables

// Globals
uint16_t totalCount = 0;
uint16_t startCount = 0;
uint16_t selectCount = 0;
Expand All @@ -32,17 +32,31 @@ uint16_t leftCount = 0;
uint16_t rightCount = 0;
uint8_t dpadError = 0;

// Draw Functions
uint8_t playChannel = 0;
uint8_t lowIndex = 255;
uint8_t highIndex = 255;
uint16_t scaleLow[] = {710, 854, 986, 1046, 1155, 1253, 1339, 1379}; // G3, A3, B3, C4, D4, E4, F#4, G4
uint16_t scaleHigh[] = {1379, 1452, 1517, 1546, 1602, 1650, 1694, 1714}; // G4, A4, B4, C5, D5, E5, F#5, G5


// Drawing
#define RGB_DARK_PURPLE 0x2405
#define RGB_GOLD 0x331C
font_t ibmFont, minFont, minFontInvert;
const palette_color_t cgb_palette[] = {RGB_WHITE, RGB_BLACK, RGB_GOLD, RGB_DARK_PURPLE};

void setup_fonts() {
void setupFonts() {
font_init();
font_color(0, 3);
ibmFont = font_load(font_ibm);
minFont = font_load(font_min);

if (_cpu == CGB_TYPE) {
font_color(2, 3);
} else {
font_color(0, 3);
}
ibmFont = font_load(font_ibm);

if (_cpu == CGB_TYPE) {
font_color(1, 2);
} else {
Expand All @@ -51,7 +65,7 @@ void setup_fonts() {
minFontInvert = font_load(font_min);
}

void print_at_with(char str[], uint8_t x, uint8_t y, font_t font) {
void printAtWith(char str[], uint8_t x, uint8_t y, font_t font) {
font_set(font);
gotoxy(x, y);
printf(str);
Expand Down Expand Up @@ -80,55 +94,98 @@ font_t pressedFont(uint8_t key) {
}
}

void draw_static() {
print_at_with("Better Button Test", 1, 1, ibmFont);
print_at_with("v2", 17, 2, ibmFont);

// Sound
void initSound() {
NR52_REG = 0x80; // Turn on sound hardware
NR11_REG = 0b10111111; // 2 bits for duty, 6 for length
NR21_REG = 0b10111111; // 2 bits for duty, 6 for length
NR50_REG = 0b01110111; // Channel Volume
NR51_REG = 0b00110011; // Mix in Channel 1 & 2
}

void playTone(uint8_t scaleIndex) {
if (playChannel) {
// if (highIndex == 0 && scaleIndex == 7) scaleIndex = 0;
uint16_t tone = scaleLow[scaleIndex];
lowIndex = scaleIndex;
if (highIndex == lowIndex) highIndex = 255;
NR12_REG = 0b10001111; // 4 bits for initial vol, 1 for env direction, 3 for sweep count
NR13_REG = 0xFF & tone;
NR14_REG = 0b10000000 | ((tone >> 8) & 0b00000111);
playChannel = 0;
} else {
// if (lowIndex == 7 && scaleIndex == 0) scaleIndex = 7;
uint16_t tone = scaleHigh[scaleIndex];
highIndex = scaleIndex;
if (lowIndex == highIndex) lowIndex = 255;
NR22_REG = 0b10001111; // 4 bits for initial vol, 1 for env direction, 3 for sweep count
NR23_REG = 0xFF & tone;
NR24_REG = 0b10000000 | ((tone >> 8) & 0b00000111);
playChannel = 1;
}
}

void maybeStopTone(uint8_t scaleIndex) {
if (lowIndex == scaleIndex) {
uint16_t tone = scaleLow[scaleIndex];
NR12_REG = 0b10000111; // 4 bits for initial vol, 1 for env direction, 3 for sweep count
NR14_REG = 0b01000000 | ((tone >> 8) & 0b00000111);
} else if (highIndex == scaleIndex) {
uint16_t tone = scaleHigh[scaleIndex];
NR22_REG = 0b10000111; // 4 bits for initial vol, 1 for env direction, 3 for sweep count
NR24_REG = 0b01000000 | ((tone >> 8) & 0b00000111);
}
}

void drawStatic() {
printAtWith("Better Button Test", 1, 1, ibmFont);
}

#define YO 0 // Y Offset
void draw() {
print_at_with("A", 1, 4 + YO, pressedFont(J_A));
if (aCount) printCountAt(14, 4 + YO, aCount);
printAtWith("A", 1, 4, pressedFont(J_A));
if (aCount) printCountAt(14, 4, aCount);

print_at_with("B", 1, 5 + YO, pressedFont(J_B));
if (bCount) printCountAt(14, 5 + YO, bCount);
printAtWith("B", 1, 5, pressedFont(J_B));
if (bCount) printCountAt(14, 5, bCount);

print_at_with("UP", 1, 6 + YO, pressedFont(J_UP));
if (upCount) printCountAt(14, 6 + YO, upCount);
printAtWith("UP", 1, 6, pressedFont(J_UP));
if (upCount) printCountAt(14, 6, upCount);

print_at_with("DOWN", 1, 7 + YO, pressedFont(J_DOWN));
if (downCount) printCountAt(14, 7 + YO, downCount);
printAtWith("DOWN", 1, 7, pressedFont(J_DOWN));
if (downCount) printCountAt(14, 7, downCount);

print_at_with("LEFT", 1, 8 + YO, pressedFont(J_LEFT));
if (leftCount) printCountAt(14, 8 + YO, leftCount);
printAtWith("LEFT", 1, 8, pressedFont(J_LEFT));
if (leftCount) printCountAt(14, 8, leftCount);

print_at_with("RIGHT", 1, 9 + YO, pressedFont(J_RIGHT));
if (rightCount) printCountAt(14, 9 + YO, rightCount);
printAtWith("RIGHT", 1, 9, pressedFont(J_RIGHT));
if (rightCount) printCountAt(14, 9, rightCount);

print_at_with("START", 1, 10 + YO, pressedFont(J_START));
if (startCount) printCountAt(14, 10 + YO, startCount);
printAtWith("START", 1, 10, pressedFont(J_START));
if (startCount) printCountAt(14, 10, startCount);

printAtWith("SELECT", 1, 11, pressedFont(J_SELECT));
if (selectCount) printCountAt(14, 11, selectCount);

print_at_with("SELECT", 1, 11 + YO, pressedFont(J_SELECT));
if (selectCount) printCountAt(14, 11 + YO, selectCount);

if (dpadError) {
print_at_with("ILLEGAL DPAD INPUT", 1, 14 + YO, minFontInvert);
print_at_with("MORE THAN 2 DIRS\n PRESSED AT ONCE", 2, 15 + YO, minFont);
printAtWith("ILLEGAL DPAD INPUT", 1, 14, minFontInvert);
printAtWith("MORE THAN 2 DIRS\n PRESSED AT ONCE", 2, 15, minFont);
} else if (totalCount > 255) {
print_at_with("YOU REALLY LOVE", 2, 14 + YO, minFontInvert);
print_at_with("TESTING BUTTONS", 3, 15 + YO, minFontInvert);
printAtWith("YOU REALLY LOVE", 2, 14, minFontInvert);
printAtWith("TESTING BUTTONS", 3, 15, minFontInvert);
}
}

void update() {
if (KEY_TICKED(J_START)) { startCount++; totalCount++; }
if (KEY_TICKED(J_SELECT)) { selectCount++; totalCount++; }
if (KEY_TICKED(J_A)) { aCount++; totalCount++; }
if (KEY_TICKED(J_B)) { bCount++; totalCount++; }
if (KEY_TICKED(J_UP)) { upCount++; totalCount++; }
if (KEY_TICKED(J_DOWN)) { downCount++; totalCount++; }
if (KEY_TICKED(J_LEFT)) { leftCount++; totalCount++; }
if (KEY_TICKED(J_RIGHT)) { rightCount++; totalCount++; }
if (KEY_TICKED(J_A)) { playTone(0); aCount++; totalCount++; } else if (KEY_RELEASED(J_A)) maybeStopTone(0);
if (KEY_TICKED(J_B)) { playTone(1); bCount++; totalCount++; } else if (KEY_RELEASED(J_B)) maybeStopTone(1);
if (KEY_TICKED(J_UP)) { playTone(2); upCount++; totalCount++; } else if (KEY_RELEASED(J_UP)) maybeStopTone(2);
if (KEY_TICKED(J_DOWN)) { playTone(3); downCount++; totalCount++; } else if (KEY_RELEASED(J_DOWN)) maybeStopTone(3);
if (KEY_TICKED(J_LEFT)) { playTone(4); leftCount++; totalCount++; } else if (KEY_RELEASED(J_LEFT)) maybeStopTone(4);
if (KEY_TICKED(J_RIGHT)) { playTone(5); rightCount++; totalCount++; } else if (KEY_RELEASED(J_RIGHT)) maybeStopTone(5);
if (KEY_TICKED(J_START)) { playTone(6); startCount++; totalCount++; } else if (KEY_RELEASED(J_START)) maybeStopTone(6);
if (KEY_TICKED(J_SELECT)) { playTone(7); selectCount++; totalCount++; } else if (KEY_RELEASED(J_SELECT)) maybeStopTone(7);

if (
(KEY_PRESSED(J_UP) && KEY_PRESSED(J_DOWN))
Expand All @@ -139,8 +196,9 @@ void update() {
void main(void) {
if (_cpu == CGB_TYPE) set_bkg_palette(0, 1, cgb_palette);

setup_fonts();
draw_static();
initSound();
setupFonts();
drawStatic();

while(1) {
update();
Expand Down

0 comments on commit 01da377

Please sign in to comment.