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/**
@file main_pokitto.cpp
This is Pokitto implementation of the game front end, using the official
PokittoLib.
by Miloslav Ciz (drummyfish), 2019
Released under CC0 1.0 (https://creativecommons.org/publicdomain/zero/1.0/)
plus a waiver of all other intellectual property. The goal of this work is
be and remain completely in the public domain forever, available for any use
whatsoever.
*/
// #define JOYHAT // compiles the version for Pokitto with joystick hat
// #define SFG_START_LEVEL 8
#include <stdio.h>
#define SFG_LOG(s) puts(s);
// #define SFG_UNLOCK_DOOR 1
// #define SFG_INFINITE_AMMO 1
#define SFG_FPS 22
#define SFG_CAN_EXIT 0
//#define SFG_TEXTURE_DISTANCE 6000
#ifndef JOYHAT
#define SFG_SCREEN_RESOLUTION_X 110
#define SFG_SCREEN_RESOLUTION_Y 88
#else
#define SFG_SCREEN_RESOLUTION_X 88
#define SFG_SCREEN_RESOLUTION_Y 110
#endif
#define SFG_RESOLUTION_SCALEDOWN 1
#define SFG_DITHERED_SHADOW 0
#define SFG_DIMINISH_SPRITES 0
#define SFG_FOG_DIMINISH_STEP 2048
#define SFG_RAYCASTING_MAX_STEPS 20
#define SFG_RAYCASTING_MAX_HITS 5
#define SFG_RAYCASTING_SUBSAMPLE 2
#include "game.h"
#include "sounds.h"
#include "../PokittoLib/Pokitto/POKITTO_HW/clock_11u6x.h"
#include "../PokittoLib/Pokitto/POKITTO_HW/timer_11u6x.h"
#include "../PokittoLib/Pokitto/Pokitto.h"
#include "PokittoCookie.h"
class SaveCookie: public Pokitto::Cookie
{
public:
uint8_t data[SFG_SAVE_SIZE];
};
SaveCookie save;
Pokitto::Core pokitto;
uint8_t *pokittoScreen;
void SFG_setPixel(uint16_t x, uint16_t y, uint8_t colorIndex)
{
#ifndef JOYHAT
pokittoScreen[y * SFG_SCREEN_RESOLUTION_X + x] = colorIndex;
#else
pokittoScreen[x * SFG_SCREEN_RESOLUTION_Y + (SFG_SCREEN_RESOLUTION_Y - 1 - y)]
= colorIndex;
#endif
}
uint32_t SFG_getTimeMs()
{
return pokitto.getTime();
}
void SFG_sleepMs(uint16_t timeMs)
{
}
int8_t SFG_keyPressed(uint8_t key)
{
switch (key)
{
case SFG_KEY_UP: return pokitto.upBtn(); break;
case SFG_KEY_RIGHT: return pokitto.rightBtn(); break;
case SFG_KEY_DOWN: return pokitto.downBtn(); break;
case SFG_KEY_LEFT: return pokitto.leftBtn(); break;
case SFG_KEY_A: return pokitto.aBtn(); break;
case SFG_KEY_B: return pokitto.bBtn(); break;
case SFG_KEY_C: return pokitto.cBtn(); break;
default: return 0; break;
}
}
void SFG_getMouseOffset(int16_t *x, int16_t *y)
{
}
uint8_t audioBuff[SFG_SFX_SAMPLE_COUNT];
uint16_t audioPos = 0;
uint8_t musicOn = 1;
void SFG_enableMusic(uint8_t enable)
{
musicOn = enable;
}
static inline uint8_t mixSamples(uint8_t sample1, uint8_t sample2)
{
return (sample1 >> 1) + (sample2 >> 1);
}
void onTimer() // for sound
{
if (Chip_TIMER_MatchPending(LPC_TIMER32_0, 1))
{
Chip_TIMER_ClearMatch(LPC_TIMER32_0, 1);
Pokitto::dac_write(
musicOn ?
mixSamples(audioBuff[audioPos],SFG_getNextMusicSample() / 2) :
audioBuff[audioPos]
);
audioBuff[audioPos] = 127;
audioPos = (audioPos + 1) % SFG_SFX_SAMPLE_COUNT;
}
}
void timerInit(uint32_t samplingRate)
{
Chip_TIMER_Init(LPC_TIMER32_0);
Chip_TIMER_Reset(LPC_TIMER32_0);
Chip_TIMER_MatchEnableInt(LPC_TIMER32_0, 1);
Chip_TIMER_SetMatch(LPC_TIMER32_0, 1,
(Chip_Clock_GetSystemClockRate() / samplingRate));
Chip_TIMER_ResetOnMatchEnable(LPC_TIMER32_0, 1);
Chip_TIMER_Enable(LPC_TIMER32_0);
#define weirdNumber ((IRQn_Type) 18)
NVIC_ClearPendingIRQ(weirdNumber);
NVIC_SetVector(weirdNumber, (uint32_t) &onTimer);
NVIC_EnableIRQ(weirdNumber);
#undef weirdNumber
}
void SFG_save(uint8_t data[SFG_SAVE_SIZE])
{
for (uint8_t i = 0; i < SFG_SAVE_SIZE; ++i)
save.data[i] = data[i];
save.saveCookie();
/* ^ This causes sound to stop as it writes something to timer32, we need to
reinit the audio: */
timerInit(8000);
}
void SFG_processEvent(uint8_t event, uint8_t data)
{
#ifdef JOYHAT
// TODO: vibrate
#endif
}
uint8_t SFG_load(uint8_t data[SFG_SAVE_SIZE])
{
for (uint8_t i = 0; i < SFG_SAVE_SIZE; ++i)
data[i] = save.data[i];
return 1;
}
void SFG_playSound(uint8_t soundIndex, uint8_t volume)
{
uint8_t volumeShift = 7 - volume / 32;
uint16_t baseLevel = 128 - (128 >> volumeShift);
uint16_t pos = audioPos;
for (int i = 0; i < SFG_SFX_SAMPLE_COUNT; ++i)
{
audioBuff[pos] = mixSamples(audioBuff[pos],baseLevel +
(SFG_GET_SFX_SAMPLE(soundIndex,i) >> volumeShift));
pos = (pos < SFG_SFX_SAMPLE_COUNT - 1) ? (pos + 1) : 0;
}
}
int main()
{
save.begin("ANARCH",sizeof(save),(char*) &save);
pokitto.begin();
timerInit(8000);
for (uint16_t i = 0; i < SFG_SFX_SAMPLE_COUNT; ++i)
audioBuff[i] = 127;
pokitto.setFrameRate(255);
pokitto.display.setFont(fontTiny);
pokitto.display.persistence = 1;
pokitto.display.setInvisibleColor(-1);
pokitto.display.load565Palette(paletteRGB565);
pokittoScreen = pokitto.display.screenbuffer;
SFG_init();
while (pokitto.isRunning())
{
if (pokitto.update())
{
SFG_mainLoopBody();
}
}
return 0;
}