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PlatformVita.cpp
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PlatformVita.cpp
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#include "PT2.3A_replay_cia.h"
#include "PlatformVita.h"
#define JOYSTICK_AXIS_THRESHOLD 30000
#ifdef PLATFORM_MODULE_BASED_AUDIO
#define LARGEST_MODULE_SIZE 105654
#define TOTAL_SAMPLE_SIZE 75755
#endif
#ifdef PLATFORM_SPRITE_SUPPORT
static int8_t tileSpriteMap[256] = {
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
0, 1, 49, 50, 57, 58, 59, 60, -1, -1, -1, -1, -1, -1, -1, 48,
-1, -1, -1, 73, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
1, 0, 3, -1, 53, 54, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, 76, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
};
#endif
static int8_t animTileMap[256] = {
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 16,
-1, -1, -1, -1, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, 8, 10, -1, -1, 12, 14, -1, -1, 20, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
};
static char MAPNAME[] = "level-a";
#ifdef PLATFORM_IMAGE_SUPPORT
static const char* imageFilenames[] = {
"app0:introscreen.png",
"app0:gamescreen.png",
"app0:gameover.png"
};
#endif
#ifdef PLATFORM_MODULE_BASED_AUDIO
static const char* moduleFilenames[] = {
"app0:mod.soundfx",
"app0:mod.metal-heads",
"app0:mod.win",
"app0:mod.lose",
"app0:mod.metallic-bop-amiga",
"app0:mod.get-psyched",
"app0:mod.robot-attack",
"app0:mod.rushin-in"
};
static const char* sampleFilenames[] = {
"app0:sounds_dsbarexp.raw",
"app0:SOUND_MEDKIT.raw",
"app0:SOUND_EMP.raw",
"app0:SOUND_MAGNET2.raw",
"app0:SOUND_SHOCK.raw",
"app0:SOUND_MOVE.raw",
"app0:SOUND_PLASMA_FASTER.raw",
"app0:sounds_dspistol.raw",
"app0:SOUND_FOUND_ITEM.raw",
"app0:SOUND_ERROR.raw",
"app0:SOUND_CYCLE_WEAPON.raw",
"app0:SOUND_CYCLE_ITEM.raw",
"app0:SOUND_DOOR_FASTER.raw",
"app0:SOUND_BEEP2.raw",
"app0:SOUND_BEEP.raw",
"app0:SquareWave.raw"
};
#endif
static uint8_t standardControls[] = {
SDL_SCANCODE_I, // MOVE UP orig: 56 (8)
SDL_SCANCODE_K, // MOVE DOWN orig: 50 (2)
SDL_SCANCODE_J, // MOVE LEFT orig: 52 (4)
SDL_SCANCODE_L, // MOVE RIGHT orig: 54 (6)
SDL_SCANCODE_W, // FIRE UP
SDL_SCANCODE_S, // FIRE DOWN
SDL_SCANCODE_A, // FIRE LEFT
SDL_SCANCODE_D, // FIRE RIGHT
SDL_SCANCODE_F1, // CYCLE WEAPONS
SDL_SCANCODE_F2, // CYCLE ITEMS
SDL_SCANCODE_SPACE, // USE ITEM
SDL_SCANCODE_Z, // SEARCH OBEJCT
SDL_SCANCODE_M, // MOVE OBJECT
SDL_SCANCODE_TAB, // LIVE MAP
SDL_SCANCODE_TAB + 0x80, // LIVE MAP ROBOTS
SDL_SCANCODE_ESCAPE, // PAUSE
SDL_SCANCODE_F6, // MUSIC
SDL_SCANCODE_C + 0x80, // CHEAT
SDL_SCANCODE_UP, // CURSOR UP
SDL_SCANCODE_DOWN, // CURSOR DOWN
SDL_SCANCODE_LEFT, // CURSOR LEFT
SDL_SCANCODE_RIGHT, // CURSOR RIGHT
SDL_SCANCODE_SPACE, // SPACE
SDL_SCANCODE_RETURN, // RETURN
SDL_SCANCODE_Y, // YES
SDL_SCANCODE_N // NO
};
#define LIVE_MAP_ORIGIN_X ((PLATFORM_SCREEN_WIDTH - 56 - 128 * 3) / 2)
#define LIVE_MAP_ORIGIN_Y ((PLATFORM_SCREEN_HEIGHT - 32 - 64 * 3) / 2)
uint8_t unitTypes[48];
uint8_t unitX[48];
uint8_t unitY[48];
static uint16_t joystickButtons[] = {
Platform::JoystickYellow, // 0
Platform::JoystickBlue, // 1
Platform::JoystickRed, // 2
Platform::JoystickGreen, // 3
Platform::JoystickReverse, // 4
Platform::JoystickForward, // 5
Platform::JoystickDown, // 6
Platform::JoystickLeft, // 7
Platform::JoystickUp, // 8
Platform::JoystickRight, // 9
Platform::JoystickPlay, // 10
Platform::JoystickExtra // 11
};
PlatformSDL::PlatformSDL() :
interrupt(0),
audioSpec({0}),
audioDeviceID(0),
joystick(0),
window(0),
windowSurface(0),
bufferSurface(0),
fadeSurface(0),
fontSurface(0),
#ifdef PLATFORM_IMAGE_BASED_TILES
tileSurface(0),
#endif
#ifdef PLATFORM_IMAGE_SUPPORT
imageSurfaces(),
itemsSurface(0),
keysSurface(0),
healthSurface(0),
facesSurface(0),
animTilesSurface(0),
palette(0),
#ifdef PLATFORM_SPRITE_SUPPORT
spritesSurface(0),
#endif
#endif
#ifdef PLATFORM_CURSOR_SUPPORT
cursorSurface(0),
cursorRect({0}),
#ifdef PLATFORM_CURSOR_SHAPE_SUPPORT
cursorShape(ShapeUse),
#endif
#endif
framesPerSecond_(60),
#ifdef PLATFORM_MODULE_BASED_AUDIO
moduleData(new uint8_t[LARGEST_MODULE_SIZE]),
loadedModule(ModuleSoundFX),
sampleData(new int8_t[TOTAL_SAMPLE_SIZE]),
effectChannel(0),
#else
audioAngle(0),
audioFrequency(440),
audioVolume(INT16_MAX >> 4),
#endif
#ifdef PLATFORM_IMAGE_SUPPORT
loadedImage(ImageIntro),
#endif
interruptIntervalInSamples(0),
samplesSinceInterrupt(0),
fadeBaseColor(0),
fadeIntensity(0),
joystickStateToReturn(0),
joystickState(0),
pendingState(0),
keyToReturn(0xff),
downKey(0xff),
shift(0)
{
if (SDL_Init(SDL_INIT_EVERYTHING) != 0) {
fprintf(stderr, "Error initializing SDL: %s\n", SDL_GetError());
}
if ((IMG_Init(IMG_INIT_PNG) & IMG_INIT_PNG) == 0) {
fprintf(stderr, "Error initializing SDL_image: %s\n", IMG_GetError());
}
SDL_SetHint(SDL_HINT_RENDER_VSYNC, "1");
SDL_AudioSpec requestedAudioSpec;
SDL_zero(requestedAudioSpec);
requestedAudioSpec.freq = 44100;
requestedAudioSpec.format = AUDIO_S16LSB;
requestedAudioSpec.channels = 1;
requestedAudioSpec.samples = 512;
requestedAudioSpec.callback = audioCallback;
requestedAudioSpec.userdata = this;
audioDeviceID = SDL_OpenAudioDevice(NULL, 0, &requestedAudioSpec, &audioSpec, SDL_AUDIO_ALLOW_ANY_CHANGE);
if (!audioDeviceID) {
fprintf(stderr, "Failed to open audio device: %s\n", SDL_GetError());
}
interruptIntervalInSamples = audioSpec.freq / framesPerSecond_;
samplesSinceInterrupt = interruptIntervalInSamples;
SDL_PauseAudioDevice(audioDeviceID, 0);
joystick = SDL_JoystickOpen(0);
window = SDL_CreateWindow("Attack of the PETSCII Robots", 0, 0, 960, 544, 0);
renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
windowSurface = SDL_GetWindowSurface(window);
bufferSurface = SDL_CreateRGBSurface(0, PLATFORM_SCREEN_WIDTH, PLATFORM_SCREEN_HEIGHT, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
fadeSurface = SDL_CreateRGBSurface(0, 1, 1, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
#ifdef PLATFORM_COLOR_SUPPORT
fontSurface = IMG_Load("c64font.png");
#else
fontSurface = IMG_Load("petfont.png");
#endif
#ifdef PLATFORM_IMAGE_BASED_TILES
tileSurface = IMG_Load("tilesalpha.png");
#else
for (int i = 0; i < 256; i++) {
tileSurfaces[i] = SDL_CreateRGBSurface(0, 24, 24, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
}
#endif
#ifdef PLATFORM_IMAGE_SUPPORT
for (int i = 0; i < 3; i++) {
imageSurfaces[i] = IMG_Load(imageFilenames[i]);
}
itemsSurface = IMG_Load("items.png");
keysSurface = IMG_Load("keys.png");
healthSurface = IMG_Load("health.png");
facesSurface = IMG_Load("faces.png");
animTilesSurface = IMG_Load("animtiles.png");
#ifdef PLATFORM_SPRITE_SUPPORT
spritesSurface = IMG_Load("spritesalpha.png");
SDL_SetColorKey(spritesSurface, SDL_TRUE, 16);
#endif
#endif
#ifdef PLATFORM_CURSOR_SUPPORT
cursorSurface = SDL_CreateRGBSurface(0, 28, 28, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
#endif
SDL_SetSurfaceBlendMode(fontSurface, SDL_BLENDMODE_NONE);
#ifdef PLATFORM_MODULE_BASED_AUDIO
int sample = 0;
int8_t* destination = sampleData;
soundExplosion = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundMedkit = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundEMP = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundMagnet = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundShock = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundMove = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundPlasma = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundPistol = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundItemFound = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundError = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundCycleWeapon = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundCycleItem = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundDoor = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundMenuBeep = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
soundShortBeep = destination;
destination += load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
squareWave = destination;
load(sampleFilenames[sample++], (uint8_t*)destination, TOTAL_SAMPLE_SIZE);
// Clear the first two bytes of effect samples to enable the 2-byte no-loop loop
*((uint16_t*)soundExplosion) = 0;
*((uint16_t*)soundMedkit) = 0;
*((uint16_t*)soundEMP) = 0;
*((uint16_t*)soundMagnet) = 0;
*((uint16_t*)soundShock) = 0;
*((uint16_t*)soundMove) = 0;
*((uint16_t*)soundPlasma) = 0;
*((uint16_t*)soundPistol) = 0;
*((uint16_t*)soundItemFound) = 0;
*((uint16_t*)soundError) = 0;
*((uint16_t*)soundCycleWeapon) = 0;
*((uint16_t*)soundCycleItem) = 0;
*((uint16_t*)soundDoor) = 0;
*((uint16_t*)soundMenuBeep) = 0;
*((uint16_t*)soundShortBeep) = 0;
#endif
platform = this;
}
PlatformSDL::~PlatformSDL()
{
#ifdef PLATFORM_IMAGE_SUPPORT
#ifdef PLATFORM_SPRITE_SUPPORT
SDL_FreeSurface(spritesSurface);
#endif
SDL_FreeSurface(animTilesSurface);
SDL_FreeSurface(facesSurface);
SDL_FreeSurface(healthSurface);
SDL_FreeSurface(keysSurface);
SDL_FreeSurface(itemsSurface);
for (int i = 0; i < 3; i++) {
SDL_FreeSurface(imageSurfaces[i]);
}
#endif
#ifdef PLATFORM_IMAGE_BASED_TILES
SDL_FreeSurface(tileSurface);
#else
for (int i = 0; i < 256; i++) {
SDL_FreeSurface(tileSurfaces[i]);
}
#endif
SDL_FreeSurface(fadeSurface);
SDL_FreeSurface(bufferSurface);
SDL_FreeSurface(fontSurface);
SDL_DestroyWindow(window);
SDL_JoystickClose(joystick);
SDL_CloseAudioDevice(audioDeviceID);
SDL_Quit();
#ifdef PLATFORM_MODULE_BASED_AUDIO
delete[] sampleData;
delete[] moduleData;
#endif
}
void PlatformSDL::audioCallback(void* data, uint8_t* stream, int bytes) {
PlatformSDL* platform = (PlatformSDL*)data;
int words = bytes >> 1;
int16_t* output = (int16_t*)stream;
#ifdef PLATFORM_MODULE_BASED_AUDIO
processAudio(output, words, platform->audioSpec.freq);
#else
for (int i = 0; i < words; i++) {
output[i] = platform->audioVolume * (sin(platform->audioAngle) >= 0 ? 1 : -1);
platform->audioAngle += 2 * M_PI * platform->audioFrequency / platform->audioSpec.freq;
}
#endif
platform->samplesSinceInterrupt += words;
while (platform->samplesSinceInterrupt >= platform->interruptIntervalInSamples) {
if (platform->interrupt) {
(*platform->interrupt)();
}
platform->samplesSinceInterrupt -= platform->interruptIntervalInSamples;
}
}
#ifdef PLATFORM_MODULE_BASED_AUDIO
void PlatformSDL::undeltaSamples(uint8_t* module, uint32_t moduleSize)
{
uint8_t numPatterns = 0;
for (int i = 0; i < module[950]; i++) {
numPatterns = MAX(numPatterns, module[952 + i]);
}
numPatterns++;
int8_t* samplesStart = (int8_t*)(module + 1084 + (numPatterns << 10));
int8_t* samplesEnd = (int8_t*)(module + moduleSize);
int8_t sample = 0;
for (int8_t* sampleData = samplesStart; sampleData < samplesEnd; sampleData++) {
int8_t delta = *sampleData;
sample += delta;
*sampleData = sample;
}
}
void PlatformSDL::setSampleData(uint8_t* module)
{
mt_SampleStarts[15 + 0] = soundExplosion;
mt_SampleStarts[15 + 1] = soundShortBeep;
mt_SampleStarts[15 + 2] = soundMedkit;
mt_SampleStarts[15 + 3] = soundEMP;
mt_SampleStarts[15 + 4] = soundMagnet;
mt_SampleStarts[15 + 5] = soundShock;
mt_SampleStarts[15 + 6] = soundMove;
mt_SampleStarts[15 + 7] = soundShock;
mt_SampleStarts[15 + 8] = soundPlasma;
mt_SampleStarts[15 + 9] = soundPistol;
mt_SampleStarts[15 + 10] = soundItemFound;
mt_SampleStarts[15 + 11] = soundError;
mt_SampleStarts[15 + 12] = soundCycleWeapon;
mt_SampleStarts[15 + 13] = soundCycleItem;
mt_SampleStarts[15 + 14] = soundDoor;
mt_SampleStarts[15 + 15] = soundMenuBeep;
SampleData* sampleData = (SampleData*)(module + 20);
putWord((uint8_t*)&sampleData[15 + 0].length, 0, (uint16_t)(soundMedkit - soundExplosion) >> 1);
putWord((uint8_t*)&sampleData[15 + 1].length, 0, (uint16_t)(squareWave - soundShortBeep) >> 1);
putWord((uint8_t*)&sampleData[15 + 2].length, 0, (uint16_t)(soundEMP - soundMedkit) >> 1);
putWord((uint8_t*)&sampleData[15 + 3].length, 0, (uint16_t)(soundMagnet - soundEMP) >> 1);
putWord((uint8_t*)&sampleData[15 + 4].length, 0, (uint16_t)(soundShock - soundMagnet) >> 1);
putWord((uint8_t*)&sampleData[15 + 5].length, 0, (uint16_t)(soundMove - soundShock) >> 1);
putWord((uint8_t*)&sampleData[15 + 6].length, 0, (uint16_t)(soundPlasma - soundMove) >> 1);
putWord((uint8_t*)&sampleData[15 + 7].length, 0, (uint16_t)(soundMove - soundShock) >> 1);
putWord((uint8_t*)&sampleData[15 + 8].length, 0, (uint16_t)(soundPistol - soundPlasma) >> 1);
putWord((uint8_t*)&sampleData[15 + 9].length, 0, (uint16_t)(soundItemFound - soundPistol) >> 1);
putWord((uint8_t*)&sampleData[15 + 10].length, 0, (uint16_t)(soundError - soundItemFound) >> 1);
putWord((uint8_t*)&sampleData[15 + 11].length, 0, (uint16_t)(soundCycleWeapon - soundError) >> 1);
putWord((uint8_t*)&sampleData[15 + 12].length, 0, (uint16_t)(soundCycleItem - soundCycleWeapon) >> 1);
putWord((uint8_t*)&sampleData[15 + 13].length, 0, (uint16_t)(soundDoor - soundCycleItem) >> 1);
putWord((uint8_t*)&sampleData[15 + 14].length, 0, (uint16_t)(soundMenuBeep - soundDoor) >> 1);
putWord((uint8_t*)&sampleData[15 + 15].length, 0, (uint16_t)(soundShortBeep - soundMenuBeep) >> 1);
for (int i = 0; i < 16; i++) {
sampleData[15 + i].volume = 64;
}
}
#endif
uint8_t* PlatformSDL::standardControls() const
{
return ::standardControls;
}
void PlatformSDL::setInterrupt(void (*interrupt)(void))
{
this->interrupt = interrupt;
}
int PlatformSDL::framesPerSecond()
{
return framesPerSecond_;
}
void PlatformSDL::chrout(uint8_t character)
{
putchar(character == 0x0d ? 0x0a : character);
}
uint8_t PlatformSDL::readKeyboard()
{
SDL_Event event;
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_QUIT:
quit = true;
break;
case SDL_KEYUP:
case SDL_KEYDOWN: {
bool keyDown = event.type == SDL_KEYDOWN;
uint8_t keyCode = event.key.keysym.scancode & 0x7f;
uint8_t keyCodeWithShift = keyCode | shift;
if (event.key.keysym.scancode == SDL_SCANCODE_LSHIFT || event.key.keysym.scancode == SDL_SCANCODE_RSHIFT) {
if (keyDown) {
shift = 0x80;
downKey |= 0x80;
} else {
shift = 0x00;
if (downKey != 0xff) {
downKey &= 0x7f;
}
}
} else if (keyDown) {
if (downKey != keyCodeWithShift && !event.key.repeat) {
downKey = keyCodeWithShift;
keyToReturn = downKey;
}
} else if (downKey == keyCodeWithShift) {
downKey = 0xff;
}
}
break;
case SDL_JOYBUTTONDOWN:
if (event.jbutton.button < sizeof(joystickButtons) / sizeof(uint16_t)) {
pendingState |= joystickButtons[event.jbutton.button];
}
break;
case SDL_JOYBUTTONUP:
if (event.jbutton.button < sizeof(joystickButtons) / sizeof(uint16_t)) {
pendingState &= ~joystickButtons[event.jbutton.button];
}
break;
default:
break;
}
}
uint8_t result = keyToReturn;
keyToReturn = 0xff;
return result;
}
void PlatformSDL::keyRepeat()
{
keyToReturn = downKey;
joystickStateToReturn = joystickState;
}
void PlatformSDL::clearKeyBuffer()
{
SDL_Event event;
while (SDL_PollEvent(&event));
keyToReturn = 0xff;
downKey = 0xff;
pendingState = 0;
joystickStateToReturn = 0;
}
bool PlatformSDL::isKeyOrJoystickPressed(bool gamepad)
{
return downKey != 0xff || (joystickState != 0 && joystickState != JoystickPlay);
}
uint16_t PlatformSDL::readJoystick(bool gamepad)
{
uint16_t state = 0;
int16_t leftStickX = SDL_JoystickGetAxis(joystick, 0);
int16_t leftStickY = SDL_JoystickGetAxis(joystick, 1);
int16_t rightStickX = SDL_JoystickGetAxis(joystick, 2);
int16_t rightStickY = SDL_JoystickGetAxis(joystick, 3);
if (leftStickX < -JOYSTICK_AXIS_THRESHOLD) {
state |= JoystickLeft;
} else if (leftStickX > JOYSTICK_AXIS_THRESHOLD) {
state |= JoystickRight;
}
if (leftStickY < -JOYSTICK_AXIS_THRESHOLD) {
state |= JoystickUp;
} else if (leftStickY > JOYSTICK_AXIS_THRESHOLD) {
state |= JoystickDown;
}
if (rightStickX < -JOYSTICK_AXIS_THRESHOLD) {
state |= JoystickLeft | JoystickPlay;
state &= ~(JoystickRight | JoystickUp | JoystickDown);
pendingState &= ~(JoystickRight | JoystickUp | JoystickDown);
} else if (rightStickX > JOYSTICK_AXIS_THRESHOLD) {
state |= JoystickRight | JoystickPlay;
state &= ~(JoystickLeft | JoystickUp | JoystickDown);
pendingState &= ~(JoystickLeft | JoystickUp | JoystickDown);
}
if (rightStickY < -JOYSTICK_AXIS_THRESHOLD) {
state |= JoystickUp | JoystickPlay;
state &= ~(JoystickDown | JoystickLeft | JoystickRight);
pendingState &= ~(JoystickDown | JoystickLeft | JoystickRight);
} else if (rightStickY > JOYSTICK_AXIS_THRESHOLD) {
state |= JoystickDown | JoystickPlay;
state &= ~(JoystickUp | JoystickLeft | JoystickRight);
pendingState &= ~(JoystickUp | JoystickLeft | JoystickRight);
}
state |= pendingState;
if (joystickState != state) {
// Don't return Play button press
joystickStateToReturn = state != JoystickPlay ? state : 0;
joystickState = state;
}
uint16_t result = joystickStateToReturn;
joystickStateToReturn = 0;
return result;
}
uint32_t PlatformSDL::load(const char* filename, uint8_t* destination, uint32_t size)
{
uint32_t bytesRead = 0;
FILE* file = fopen(filename, "r");
if (file) {
bytesRead = fread(destination, 1, size, file);
fclose(file);
}
return bytesRead;
}
void PlatformSDL::loadMap(Map map, uint8_t* destination)
{
MAPNAME[6] = 'a' + map;
load(MAPNAME, destination, 8960);
}
uint8_t* PlatformSDL::loadTileset()
{
uint8_t* tileset = new uint8_t[2818];
load("tileset.amiga", tileset, 2818);
return tileset;
}
#ifdef PLATFORM_IMAGE_SUPPORT
void PlatformSDL::displayImage(Image image)
{
SDL_Rect clearRect = { 0, 0, PLATFORM_SCREEN_WIDTH, PLATFORM_SCREEN_HEIGHT };
SDL_FillRect(bufferSurface, &clearRect, 0xff000000);
if (image == ImageGame) {
SDL_Rect sourceRect = { 320 - 56, 0, 56, 128 };
SDL_Rect destinationRect = { PLATFORM_SCREEN_WIDTH - 56, 0, 56, 128 };
SDL_BlitSurface(imageSurfaces[image], &sourceRect, bufferSurface, &destinationRect);
sourceRect.y = 128;
for (destinationRect.y = 128; destinationRect.y < (PLATFORM_SCREEN_HEIGHT - 32); destinationRect.y += 40) {
sourceRect.h = MIN(40, PLATFORM_SCREEN_HEIGHT - 32 - destinationRect.y);
destinationRect.h = sourceRect.h;
SDL_BlitSurface(imageSurfaces[image], &sourceRect, bufferSurface, &destinationRect);
}
sourceRect.y = 168;
sourceRect.h = 32;
destinationRect.y = PLATFORM_SCREEN_HEIGHT - 32;
destinationRect.h = 32;
SDL_BlitSurface(imageSurfaces[image], &sourceRect, bufferSurface, &destinationRect);
sourceRect.x = 0;
sourceRect.y = 168;
sourceRect.w = 104;
sourceRect.h = 8;
destinationRect.x = 0;
destinationRect.y = PLATFORM_SCREEN_HEIGHT - 32;
destinationRect.w = sourceRect.w;
destinationRect.h = sourceRect.h;
SDL_BlitSurface(imageSurfaces[image], &sourceRect, bufferSurface, &destinationRect);
sourceRect.x = 104;
for (destinationRect.x = 104; destinationRect.x < (PLATFORM_SCREEN_WIDTH - 56); destinationRect.x += 160) {
sourceRect.w = MIN(160, PLATFORM_SCREEN_WIDTH - 56 - destinationRect.x);
destinationRect.w = sourceRect.w;
SDL_BlitSurface(imageSurfaces[image], &sourceRect, bufferSurface, &destinationRect);
}
} else {
SDL_Rect rect = { 0, 0, 320, 200 };
SDL_BlitSurface(imageSurfaces[image], &rect, bufferSurface, &rect);
}
palette = imageSurfaces[image]->format->palette;
loadedImage = image;
}
#endif
void PlatformSDL::generateTiles(uint8_t* tileData, uint8_t* tileAttributes)
{
#ifndef PLATFORM_IMAGE_BASED_TILES
uint8_t* topLeft = tileData;
uint8_t* topMiddle = topLeft + 256;
uint8_t* topRight = topMiddle + 256;
uint8_t* middleLeft = topRight + 256;
uint8_t* middleMiddle = middleLeft + 256;
uint8_t* middleRight = middleMiddle + 256;
uint8_t* bottomLeft = middleRight + 256;
uint8_t* bottomMiddle = bottomLeft + 256;
uint8_t* bottomRight = bottomMiddle + 256;
SDL_Rect sourceRect, destinationRect;
sourceRect.w = 8;
sourceRect.h = 8;
destinationRect.w = 8;
destinationRect.h = 8;
for (int tile = 0; tile < 256; tile++) {
uint8_t characters[3][3] = {
{ topLeft[tile], topMiddle[tile], topRight[tile] },
{ middleLeft[tile], middleMiddle[tile], middleRight[tile] },
{ bottomLeft[tile], bottomMiddle[tile], bottomRight[tile] }
};
for (int y = 0; y < 3; y++) {
for (int x = 0; x < 3; x++) {
sourceRect.x = 0;
sourceRect.y = characters[y][x] << 3;
destinationRect.x = x << 3;
destinationRect.y = y << 3;
SDL_SetSurfaceAlphaMod(fontSurface, ((tileAttributes[tile] & 0x80) == 0 || characters[y][x] != 0x3A) ? 255 : 0);
SDL_BlitSurface(fontSurface, &sourceRect, tileSurfaces[tile], &destinationRect);
}
}
}
#endif
}
#ifndef PLATFORM_IMAGE_BASED_TILES
void PlatformSDL::updateTiles(uint8_t* tileData, uint8_t* tiles, uint8_t numTiles)
{
uint8_t* topLeft = tileData;
uint8_t* topMiddle = topLeft + 256;
uint8_t* topRight = topMiddle + 256;
uint8_t* middleLeft = topRight + 256;
uint8_t* middleMiddle = middleLeft + 256;
uint8_t* middleRight = middleMiddle + 256;
uint8_t* bottomLeft = middleRight + 256;
uint8_t* bottomMiddle = bottomLeft + 256;
uint8_t* bottomRight = bottomMiddle + 256;
SDL_Rect sourceRect, destinationRect;
sourceRect.w = 8;
sourceRect.h = 8;
destinationRect.w = 8;
destinationRect.h = 8;
for (int i = 0; i < numTiles; i++) {
uint8_t tile = tiles[i];
uint8_t characters[3][3] = {
{ topLeft[tile], topMiddle[tile], topRight[tile] },
{ middleLeft[tile], middleMiddle[tile], middleRight[tile] },
{ bottomLeft[tile], bottomMiddle[tile], bottomRight[tile] }
};
for (int y = 0; y < 3; y++) {
for (int x = 0; x < 3; x++) {
sourceRect.x = 0;
sourceRect.y = characters[y][x] << 3;
destinationRect.x = x << 3;
destinationRect.y = y << 3;
SDL_BlitSurface(fontSurface, &sourceRect, tileSurfaces[tile], &destinationRect);
}
}
}
}
#endif
SDL_Rect clipRect = { 0, 0, PLATFORM_SCREEN_WIDTH - 56, PLATFORM_SCREEN_HEIGHT - 32 };
void PlatformSDL::renderTile(uint8_t tile, uint16_t x, uint16_t y, uint8_t variant, bool transparent)
{
SDL_SetClipRect(bufferSurface, &clipRect);
if (transparent) {
#ifdef PLATFORM_SPRITE_SUPPORT
if (tileSpriteMap[tile] >= 0) {
renderSprite(tileSpriteMap[tile] + variant, x, y);
return;
}
#endif
} else {
#ifdef PLATFORM_IMAGE_BASED_TILES
if (animTileMap[tile] >= 0) {
renderAnimTile(animTileMap[tile] + variant, x, y);
return;
}
#endif
}
#ifdef PLATFORM_IMAGE_BASED_TILES
SDL_Rect sourceRect, destinationRect;
sourceRect.x = 0;
sourceRect.y = tile * 24;
sourceRect.w = 24;
sourceRect.h = 24;
destinationRect.x = x;
destinationRect.y = y;
destinationRect.w = 24;
destinationRect.h = 24;
SDL_BlitSurface(tileSurface, &sourceRect, bufferSurface, &destinationRect);
#else
SDL_Rect sourceRect, destinationRect;
sourceRect.x = 0;
sourceRect.y = 0;
sourceRect.w = 24;
sourceRect.h = 24;
destinationRect.x = x;
destinationRect.y = y;
destinationRect.w = 24;
destinationRect.h = 24;
SDL_SetSurfaceBlendMode(tileSurfaces[tile], transparent ? SDL_BLENDMODE_BLEND : SDL_BLENDMODE_NONE);
SDL_BlitSurface(tileSurfaces[tile], &sourceRect, bufferSurface, &destinationRect);
#endif
SDL_SetClipRect(bufferSurface, 0);
}
void PlatformSDL::renderTiles(uint8_t backgroundTile, uint8_t foregroundTile, uint16_t x, uint16_t y, uint8_t backgroundVariant, uint8_t foregroundVariant)
{
SDL_SetClipRect(bufferSurface, &clipRect);
SDL_Surface* backgroundSurface = tileSurface;
#ifdef PLATFORM_IMAGE_BASED_TILES
if (animTileMap[backgroundTile] >= 0) {
backgroundTile = animTileMap[backgroundTile] + backgroundVariant;
backgroundSurface = animTilesSurface;
}
#endif
SDL_Rect sourceRect, destinationRect;
sourceRect.x = 0;
sourceRect.w = 24;
sourceRect.h = 24;
destinationRect.w = 24;
destinationRect.h = 24;
#ifdef PLATFORM_IMAGE_BASED_TILES
if (tileSpriteMap[foregroundTile] >= 0) {
uint8_t sprite = tileSpriteMap[foregroundTile] + foregroundVariant;
sourceRect.y = backgroundTile * 24;
destinationRect.x = x;
destinationRect.y = y;
SDL_BlitSurface(backgroundSurface, &sourceRect, bufferSurface, &destinationRect);
sourceRect.y = sprite * 24;
SDL_BlitSurface(spritesSurface, &sourceRect, bufferSurface, &destinationRect);
} else {
#endif
sourceRect.y = backgroundTile * 24;
destinationRect.x = x;
destinationRect.y = y;
SDL_BlitSurface(backgroundSurface, &sourceRect, bufferSurface, &destinationRect);
sourceRect.y = foregroundTile * 24;
SDL_BlitSurface(tileSurface, &sourceRect, bufferSurface, &destinationRect);
#ifdef PLATFORM_IMAGE_BASED_TILES
}
#endif
SDL_SetClipRect(bufferSurface, 0);
}
#ifdef PLATFORM_SPRITE_SUPPORT
void PlatformSDL::renderSprite(uint8_t sprite, uint16_t x, uint16_t y)
{
SDL_SetClipRect(bufferSurface, &clipRect);
SDL_Rect sourceRect, destinationRect;
sourceRect.x = 0;
sourceRect.y = sprite * 24;
sourceRect.w = 24;
sourceRect.h = 24;
destinationRect.x = x;
destinationRect.y = y;
destinationRect.w = 24;
destinationRect.h = 24;
SDL_BlitSurface(spritesSurface, &sourceRect, bufferSurface, &destinationRect);
SDL_SetClipRect(bufferSurface, 0);
}
#endif
#ifdef PLATFORM_IMAGE_BASED_TILES
void PlatformSDL::renderAnimTile(uint8_t animTile, uint16_t x, uint16_t y)
{
SDL_SetClipRect(bufferSurface, &clipRect);
SDL_Rect sourceRect, destinationRect;
sourceRect.x = 0;
sourceRect.y = animTile * 24;
sourceRect.w = 24;
sourceRect.h = 24;
destinationRect.x = x;
destinationRect.y = y;
destinationRect.w = 24;
destinationRect.h = 24;
SDL_BlitSurface(animTilesSurface, &sourceRect, bufferSurface, &destinationRect);
SDL_SetClipRect(bufferSurface, 0);
}
#endif
#ifdef PLATFORM_IMAGE_SUPPORT
void PlatformSDL::renderItem(uint8_t item, uint16_t x, uint16_t y)
{
SDL_Rect sourceRect, destinationRect;
sourceRect.x = 0;
sourceRect.y = item * 21;
sourceRect.w = 48;
sourceRect.h = 21;
destinationRect.x = x;
destinationRect.y = y;
destinationRect.w = 48;
destinationRect.h = 21;
SDL_BlitSurface(itemsSurface, &sourceRect, bufferSurface, &destinationRect);
}
void PlatformSDL::renderKey(uint8_t key, uint16_t x, uint16_t y)
{
SDL_Rect sourceRect, destinationRect;
sourceRect.x = 0;
sourceRect.y = key * 14;
sourceRect.w = 16;
sourceRect.h = 14;
destinationRect.x = x;
destinationRect.y = y;
destinationRect.w = 16;
destinationRect.h = 14;
SDL_BlitSurface(keysSurface, &sourceRect, bufferSurface, &destinationRect);
}
void PlatformSDL::renderHealth(uint8_t health, uint16_t x, uint16_t y)
{
SDL_Rect sourceRect, destinationRect;
sourceRect.x = 0;
sourceRect.y = health * 51;
sourceRect.w = 48;
sourceRect.h = 51;
destinationRect.x = x;
destinationRect.y = y;
destinationRect.w = 48;
destinationRect.h = 51;
SDL_BlitSurface(healthSurface, &sourceRect, bufferSurface, &destinationRect);
}
void PlatformSDL::renderFace(uint8_t face, uint16_t x, uint16_t y)
{
SDL_Rect sourceRect, destinationRect;
sourceRect.x = 0;
sourceRect.y = face * 24;
sourceRect.w = 16;
sourceRect.h = 24;
destinationRect.x = x;
destinationRect.y = y;
destinationRect.w = 16;
destinationRect.h = 24;
SDL_BlitSurface(facesSurface, &sourceRect, bufferSurface, &destinationRect);
}
#endif
#ifdef PLATFORM_LIVE_MAP_SUPPORT
void PlatformSDL::renderLiveMap(uint8_t* map)
{
clearRect(0, 0, PLATFORM_SCREEN_WIDTH - 56, LIVE_MAP_ORIGIN_Y);
clearRect(0, LIVE_MAP_ORIGIN_Y, LIVE_MAP_ORIGIN_X, PLATFORM_SCREEN_HEIGHT - 32 - 2 * LIVE_MAP_ORIGIN_Y);
clearRect(PLATFORM_SCREEN_WIDTH - 56 - LIVE_MAP_ORIGIN_X, LIVE_MAP_ORIGIN_Y, LIVE_MAP_ORIGIN_X, PLATFORM_SCREEN_HEIGHT - 32 - 2 * LIVE_MAP_ORIGIN_Y);
clearRect(0, PLATFORM_SCREEN_HEIGHT - 32 - LIVE_MAP_ORIGIN_Y, PLATFORM_SCREEN_WIDTH - 56, LIVE_MAP_ORIGIN_Y);
SDL_Rect sourceRect, destinationRect;
sourceRect.w = 24;
sourceRect.h = 24;
destinationRect.w = 3;
destinationRect.h = 3;
for (int mapY = 0; mapY < 64; mapY++) {
for (int mapX = 0; mapX < 128; mapX++) {
sourceRect.x = 0;
sourceRect.y = *map++ * 24;
destinationRect.x = LIVE_MAP_ORIGIN_X + mapX * 3;
destinationRect.y = LIVE_MAP_ORIGIN_Y + mapY * 3;
SDL_BlitScaled(tileSurface, &sourceRect, bufferSurface, &destinationRect);
}
}
for (int i = 0; i < 48; i++) {
unitTypes[i] = 255;
}
}
void PlatformSDL::renderLiveMapTile(uint8_t* map, uint8_t mapX, uint8_t mapY)
{
SDL_Rect sourceRect, destinationRect;
sourceRect.x = 0;
sourceRect.y = map[(mapY << 7) + mapX] * 24;
sourceRect.w = 24;
sourceRect.h = 24;
destinationRect.x = LIVE_MAP_ORIGIN_X + mapX * 3;
destinationRect.y = LIVE_MAP_ORIGIN_Y + mapY * 3;
destinationRect.w = 3;
destinationRect.h = 3;
SDL_BlitScaled(tileSurface, &sourceRect, bufferSurface, &destinationRect);
}
void PlatformSDL::renderLiveMapUnits(uint8_t* map, uint8_t* unitTypes, uint8_t* unitX, uint8_t* unitY, uint8_t playerColor, bool showRobots)
{
for (int i = 0; i < 48; i++) {
if ((i < 28 || unitTypes[i] == 22) && (unitX[i] != ::unitX[i] || unitY[i] != ::unitY[i] || (i > 0 && (!showRobots || unitTypes[i] == 22 || unitTypes[i] != ::unitTypes[i])) || (i == 0 && playerColor != ::unitTypes[i]))) {
// Remove old dot if any
if (::unitTypes[i] != 255) {
renderLiveMapTile(map, ::unitX[i], ::unitY[i]);
if (i > 0 && !showRobots) {
::unitTypes[i] = 255;
}
}
if (i == 0 ||
(unitTypes[i] == 22 && (unitX[i] != unitX[0] || unitY[i] != unitY[0])) ||
(showRobots &&
(unitTypes[i] == 1 ||
(unitTypes[i] >= 2 && unitTypes[i] <= 5) ||
(unitTypes[i] >= 17 && unitTypes[i] <= 18) ||
unitTypes[i] == 9))) {
// Render new dot
int x = unitX[i];
int y = unitY[i];
SDL_Rect clearRect = { LIVE_MAP_ORIGIN_X + x * 3, LIVE_MAP_ORIGIN_Y + y * 3, 3, 3 };
SDL_Color* color = &palette->colors[(i > 0 || playerColor == 1) ? 1 : 0];
SDL_FillRect(bufferSurface, &clearRect, SDL_MapRGB(bufferSurface->format, color->r, color->g, color->b));
::unitTypes[i] = i == 0 ? playerColor : unitTypes[i];
::unitX[i] = unitX[i];
::unitY[i] = unitY[i];
}
}
}
}
#endif
#ifdef PLATFORM_CURSOR_SUPPORT
static SDL_Rect cursorSurfaceRect = {
0, 0, 28, 28
};