270 lines
7.4 KiB
C
270 lines
7.4 KiB
C
#include <sysinit.h>
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#include "basic/basic.h"
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#include "lcd/print.h"
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#include "lcd/render.h"
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#include "lcd/display.h"
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#include "basic/config.h"
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#include "usetable.h"
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#define BITSET_X (RESX+2)
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#define BITSET_Y (RESY+2)
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#define BITSET_SIZE (BITSET_X*BITSET_Y)
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#define BITSETCHUNKSIZE 32
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#define one ((uint32_t)1)
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struct bitset {
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uint16_t size;
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uint32_t bits[BITSET_SIZE/BITSETCHUNKSIZE+1];
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};
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typedef uint8_t uchar;
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int pattern=0;
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#define PATTERNCOUNT 3
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uchar stepmode=0;
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uchar randdensity=0;
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static unsigned long iter=0;
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struct bitset _life;
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#define life (&_life)
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static void draw_area();
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static void calc_area();
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static void random_area(struct bitset *area, uchar x0, uchar y0, uchar x1, uchar y1,uchar value);
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static void reset_area();
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void ram(void) {
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getInputWaitRelease();
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reset_area();
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random_area(life,1,1,RESX,RESY,40);
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static int nickx=2,nicky=10;
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signed char movy=1;
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static int nickwidth,nickheight;
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static int nickoff=10;
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static char delay=10;
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static char speedmode=0;
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static char LCDSHIFTX_EVERY_N=2;
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static char LCDSHIFTY_EVERY_N=2;
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static char ITER_EVERY_N=1;
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lcdClear();
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setExtFont(GLOBAL(nickfont));
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nickwidth=DoString(nickx,nicky,GLOBAL(nickname));
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if(nickwidth<50)nickoff=30;
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nickheight=getFontHeight();
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char stepmode=0;
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while (1) {
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draw_area(); // xor life pattern over display content
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lcdDisplay();
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lcdClear();
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// draw_area(); // xor life pattern again to restore original display content
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// Old shift code. Can't handle longer Nicks...
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// if(iter%LCDSHIFT_EVERY_N==0) lcdShift(1,-2,1);
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// if(iter%LCDSHIFT_EVERY_N==0) { nickx=(nickx+1)%100-nickwidth; nicky=(nicky+1)%50;}
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if(iter%LCDSHIFTX_EVERY_N==0) { nickx--;
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if(nickx<(-1*nickwidth-nickoff))nickx=0; }
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if(iter%LCDSHIFTY_EVERY_N==0) { nicky+=movy;
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if(nicky<1 || nicky>RESY-nickheight) movy*=-1; }
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DoString(nickx,nicky,GLOBAL(nickname));
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DoString(nickx+nickwidth+nickoff,nicky,GLOBAL(nickname));
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if(nickwidth<RESX) DoString(nickx+2*(nickwidth+nickoff),nicky,GLOBAL(nickname));
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char key=stepmode?getInputWait():getInputRaw();
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stepmode=0;
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switch(key) {
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case BTN_ENTER:
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return;
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case BTN_RIGHT:
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getInputWaitRelease();
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speedmode=(speedmode+1)%7;
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delay=15;
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switch(speedmode) {
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case 0:
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ITER_EVERY_N=1; LCDSHIFTX_EVERY_N=1; LCDSHIFTY_EVERY_N=1; break;
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case 1:
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ITER_EVERY_N=1; LCDSHIFTX_EVERY_N=2; LCDSHIFTY_EVERY_N=2; break;
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case 2:
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ITER_EVERY_N=1; LCDSHIFTX_EVERY_N=4; LCDSHIFTY_EVERY_N=4; break;
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case 3:
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ITER_EVERY_N=2; LCDSHIFTX_EVERY_N=1; LCDSHIFTY_EVERY_N=1; break;
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case 4:
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ITER_EVERY_N=4; LCDSHIFTX_EVERY_N=1; LCDSHIFTY_EVERY_N=1; break;
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case 5:
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ITER_EVERY_N=8; LCDSHIFTX_EVERY_N=1; LCDSHIFTY_EVERY_N=1; break;
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case 6:
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delay=5; ITER_EVERY_N=8; LCDSHIFTX_EVERY_N=1; LCDSHIFTY_EVERY_N=1; break;
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}
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break;
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case BTN_DOWN:
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stepmode=1;
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getInputWaitRelease();
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break;
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case BTN_LEFT:
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pattern=(pattern+1)%PATTERNCOUNT;
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case BTN_UP:
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stepmode=1;
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reset_area();
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getInputWaitRelease();
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break;
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}
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delayms_queue_plus(delay,0);
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#ifdef SIMULATOR
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fprintf(stderr,"Iteration %d - x %d, y %d \n",iter,nickx,nicky);
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#endif
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if(iter%ITER_EVERY_N==0) calc_area(); else ++iter;
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}
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return;
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}
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static inline void bitset_set(struct bitset *bs,uint16_t index, uint8_t value) {
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uint16_t base=index/BITSETCHUNKSIZE;
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uint16_t offset=index%BITSETCHUNKSIZE;
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if(value) {
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bs->bits[base]|=(one<<offset);
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} else {
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bs->bits[base]&=~(one<<offset);
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}
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}
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static inline void bitset_xor(struct bitset *bs,uint16_t index, uint8_t value) {
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uint16_t base=index/BITSETCHUNKSIZE;
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uint16_t offset=index%BITSETCHUNKSIZE;
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if(value) {
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bs->bits[base]^=(one<<offset);
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}
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}
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static inline uint8_t bitset_get(struct bitset *bs,uint16_t index) {
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uint16_t base=index/BITSETCHUNKSIZE;
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uint16_t offset=index%BITSETCHUNKSIZE;
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return (bs->bits[base]&(one<<offset))==(one<<offset);;
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}
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static inline uint16_t bitset_offset2(uint8_t x, uint8_t y) {
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return ((uint16_t)x)+((uint16_t)y)*BITSET_X;
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}
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static inline void bitset_set2(struct bitset *bs, uint8_t x, uint8_t y, uint8_t value) {
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bitset_set(bs,bitset_offset2(x,y),value);
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}
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static inline void bitset_xor2(struct bitset *bs, uint8_t x, uint8_t y, uint8_t value) {
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bitset_xor(bs,bitset_offset2(x,y),value);
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}
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static inline uint8_t bitset_get2(struct bitset *bs,uint8_t x,uint8_t y) {
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return bitset_get(bs,bitset_offset2(x,y));
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}
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static void fill_area(struct bitset *area, uchar x0, uchar y0, uchar x1, uchar y1,uchar value) {
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for(uchar x=x0; x<=x1; ++x) {
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for(uchar y=y0; y<=y1; ++y) {
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bitset_set2(area,x,y,value);
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}
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}
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}
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static void draw_area() {
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for(uchar x=0; x<RESX; ++x) {
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for(uchar y=0; y<RESY; ++y) {
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lcdSetPixel(x,y,lcdGetPixel(x,y)^bitset_get2(life,x+1,y+1));
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}
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}
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}
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static void copy_col(uint8_t columnindex, uint8_t *columnbuffer) {
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for(uchar y=0; y<=RESY+1; ++y) {
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columnbuffer[y]=bitset_get2(life,columnindex,y);
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}
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}
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static void calc_area() {
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++iter;
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// sweeping mutation point
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static uint8_t xiter=0;
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static uint8_t yiter=0;
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xiter=(xiter+1)%RESX;
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if(xiter==0) yiter=(yiter+1)%RESY;
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bitset_set2(life,xiter+1,yiter+1,1);
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// remember just two columns
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// these don´t have to be static, so if the stack is big enoguh put them there and save another 200 bytes?
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static uint8_t _a[RESY+2],*left=_a;
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static uint8_t _b[RESY+2],*middle=_b;
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copy_col(0,left);
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copy_col(1,middle);
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for(uchar x=1; x<=RESX; ++x) {
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for(uchar y=1; y<=RESY; ++y) {
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uchar sum=bitset_get2(life,x+1,y-1)+bitset_get2(life,x+1,y)+bitset_get2(life,x+1,y+1)+
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left[y-1]+left[y]+left[y+1]+middle[y-1]+middle[y+1];
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bitset_set2(life,x,y,sum==3||(sum==2&&bitset_get2(life,x,y)));
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}
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// temp-less swap of buffer pointers
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left+=(uint32_t)middle;
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middle=left-(uint32_t)middle;
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left=left-(uint32_t)middle;
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copy_col(x+1,middle);
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}
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}
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static void reset_area() {
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fill_area(life,0,0,RESX+1,RESY+1,0);
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switch(pattern) {
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case 0: // R pentomino
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bitset_set2(life,41,40,1);
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bitset_set2(life,42,40,1);
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bitset_set2(life,41,41,1);
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bitset_set2(life,40,41,1);
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bitset_set2(life,41,42,1);
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break;
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case 1: // block in the center, continuous generators at the edges
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for(int i=0; i<RESX/2+3; ++i) bitset_set2(life,i,0,1);
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// for(int i=0; i<RESY; ++i) bitset_set2(life,0,i,1);
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// for(int i=0; i<RESY/2-20; ++i) bitset_set2(life,RESX+1,RESY-i,1);
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// for(int i=0; i<RESX/2; ++i) bitset_set2(life,RESX-i,RESY+1,1);
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bitset_set2(life,40,40,1);
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bitset_set2(life,41,40,1);
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bitset_set2(life,42,40,1);
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bitset_set2(life,42,41,1);
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bitset_set2(life,42,42,1);
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bitset_set2(life,40,41,1);
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bitset_set2(life,40,42,1);
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break;
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#if 0
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case 2: // _|^|_
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bitset_set2(life,40,40,1);
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bitset_set2(life,41,40,1);
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bitset_set2(life,42,40,1);
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bitset_set2(life,42,41,1);
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bitset_set2(life,42,42,1);
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bitset_set2(life,40,41,1);
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bitset_set2(life,40,42,1);
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break;
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#endif
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}
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}
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#ifdef SIMULATOR
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extern uint32_t getRandom(void);
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#endif
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static void random_area(struct bitset *area, uchar x0, uchar y0, uchar x1, uchar y1,uchar value) {
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for(uchar x=x0; x<=x1; ++x) {
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for(uchar y=y0; y<=y1; ++y) {
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bitset_set2(area,x,y,(getRandom()>>24)<value);
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}
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}
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}
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