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updated climber.c; nes debug view

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This commit is contained in:
Steven Hugg 2019-02-11 19:01:17 -05:00
parent 6853c0ba62
commit 86dac3ba8a
2 changed files with 210 additions and 117 deletions
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261
presets/nes/climber.c
View File

@ -3,11 +3,12 @@
#include <string.h> #include <string.h>
#include "neslib.h" #include "neslib.h"
#include "nes.h"
typedef unsigned char byte; typedef unsigned char byte;
typedef signed char sbyte; typedef signed char sbyte;
typedef unsigned short word; typedef unsigned short word;
typedef enum { false, true} bool; typedef enum { false, true } bool;
// TILES // TILES
@ -23,20 +24,23 @@ extern unsigned char jroatch_chr[0x1000];
#define ACTOR_MIN_X 16 #define ACTOR_MIN_X 16
#define ACTOR_SCROLL_UP_Y 110 #define ACTOR_SCROLL_UP_Y 110
#define ACTOR_SCROLL_DOWN_Y 140 #define ACTOR_SCROLL_DOWN_Y 140
#define BOTTOM_LEVEL_Y 1 #define BOTTOM_LEVEL_Y 2
#define JUMP_VELOCITY 17
#define BGCOL CV_COLOR_BLUE #define BGCOL CV_COLOR_BLUE
#define CH_BORDER 64 #define CH_BORDER 64
#define CH_FLOOR 127 #define CH_FLOOR 0xf4
#define CH_LADDER 212 #define CH_LADDER 0xd4
#define CH_FRUIT 204 #define CH_FRUIT 0xcc
#define BLANK 32 #define BLANK 0x20
byte rndint(byte a, byte b) { byte rndint(byte a, byte b) {
return (rand8() % (b-a)) + a; return (rand8() % (b-a)) + a;
} }
#define OAMBUF ((unsigned char*) 0x200)
// VRAM UPDATE BUFFER // VRAM UPDATE BUFFER
#define VBUFSIZE 64 #define VBUFSIZE 64
@ -72,8 +76,22 @@ word getntaddr(byte x, byte y) {
return addr; return addr;
} }
void putchar(byte x, byte y, char ch) { word nt2attraddr(word a) {
word addr = getntaddr(x,y); return (a & 0x2c00) | 0x3c0 | (a & 0x0C00) |
((a >> 4) & 0x38) | ((a >> 2) & 0x07);
}
word getattraddr(byte row) {
word addr;
if (row < 15) {
addr = NAMETABLE_A + 0x3c0 + (row>>1)*8;
} else {
addr = NAMETABLE_C + 0x3c0 + ((row-15)>>1)*8;
}
return addr;
}
void putchar(word addr, char ch) {
if (updptr >= VBUFSIZE-4) cflushnow(); if (updptr >= VBUFSIZE-4) cflushnow();
updbuf[updptr++] = addr >> 8; updbuf[updptr++] = addr >> 8;
updbuf[updptr++] = addr & 0xff; updbuf[updptr++] = addr & 0xff;
@ -81,8 +99,7 @@ void putchar(byte x, byte y, char ch) {
cendbuf(); cendbuf();
} }
void putbytes(byte x, byte y, char* str, byte len) { void putbytes(word addr, char* str, byte len) {
word addr = getntaddr(x,y);
if (updptr >= VBUFSIZE-4-len) cflushnow(); if (updptr >= VBUFSIZE-4-len) cflushnow();
updbuf[updptr++] = (addr >> 8) | NT_UPD_HORZ; updbuf[updptr++] = (addr >> 8) | NT_UPD_HORZ;
updbuf[updptr++] = addr & 0xff; updbuf[updptr++] = addr & 0xff;
@ -94,7 +111,7 @@ void putbytes(byte x, byte y, char* str, byte len) {
} }
void putstring(byte x, byte y, char* str) { void putstring(byte x, byte y, char* str) {
putbytes(x, y, str, strlen(str)); putbytes(getntaddr(x,y), str, strlen(str));
} }
void clrscr() { void clrscr() {
@ -109,66 +126,45 @@ void clrscr() {
/// METASPRITES /// METASPRITES
const unsigned char playerStand[]={ #define DEF_METASPRITE_4x4(name,code,pal)\
0, 0, 0xd8, 0, const unsigned char name[]={\
8, 0, 0xd9, 0, 0, 0, (code)+0, pal, \
0, 8, 0xda, 0, 8, 0, (code)+1, pal, \
8, 8, 0xdb, 0, 0, 8, (code)+2, pal, \
128 8, 8, (code)+3, pal, \
}; 128};
const unsigned char playerRun1[]={ #define DEF_METASPRITE_4x4_FLIP(name,code,pal)\
0, 0, 0xdc, 0, const unsigned char name[]={\
8, 0, 0xdd, 0, 8, 0, (code)+0, (pal)|OAM_FLIP_H, \
0, 8, 0xde, 0, 0, 0, (code)+1, (pal)|OAM_FLIP_H, \
8, 8, 0xdf, 0, 8, 8, (code)+2, (pal)|OAM_FLIP_H, \
128 0, 8, (code)+3, (pal)|OAM_FLIP_H, \
}; 128};
const unsigned char playerRun2[]={ DEF_METASPRITE_4x4(playerRStand, 0xd8, 0);
0, 0, 0xe0, 0, DEF_METASPRITE_4x4(playerRRun1, 0xdc, 0);
8, 0, 0xe1, 0, DEF_METASPRITE_4x4(playerRRun2, 0xe0, 0);
0, 8, 0xe2, 0, DEF_METASPRITE_4x4(playerRRun3, 0xe4, 0);
8, 8, 0xe3, 0, DEF_METASPRITE_4x4(playerRJump, 0xe8, 0);
128 DEF_METASPRITE_4x4(playerRClimb, 0xec, 0);
}; DEF_METASPRITE_4x4(playerRSad, 0xf0, 0);
const unsigned char playerRun3[]={ DEF_METASPRITE_4x4_FLIP(playerLStand, 0xd8, 0);
0, 0, 0xe4, 0, DEF_METASPRITE_4x4_FLIP(playerLRun1, 0xdc, 0);
8, 0, 0xe5, 0, DEF_METASPRITE_4x4_FLIP(playerLRun2, 0xe0, 0);
0, 8, 0xe6, 0, DEF_METASPRITE_4x4_FLIP(playerLRun3, 0xe4, 0);
8, 8, 0xe7, 0, DEF_METASPRITE_4x4_FLIP(playerLJump, 0xe8, 0);
128 DEF_METASPRITE_4x4_FLIP(playerLClimb, 0xec, 0);
}; DEF_METASPRITE_4x4_FLIP(playerLSad, 0xf0, 0);
const unsigned char playerJump[]={ const unsigned char* const playerRunSeq[16] = {
0, 0, 0xe8, 0, playerLRun1, playerLRun2, playerLRun3,
8, 0, 0xe9, 0, playerLRun1, playerLRun2, playerLRun3,
0, 8, 0xea, 0, playerLRun1, playerLRun2,
8, 8, 0xeb, 0, playerRRun1, playerRRun2, playerRRun3,
128 playerRRun1, playerRRun2, playerRRun3,
}; playerRRun1, playerRRun2,
const unsigned char playerClimb[]={
0, 0, 0xec, 0,
8, 0, 0xed, 0,
0, 8, 0xee, 0,
8, 8, 0xef, 0,
128
};
const unsigned char playerSad[]={
0, 0, 0xf0, 0,
8, 0, 0xf1, 0,
0, 8, 0xf2, 0,
8, 8, 0xf3, 0,
128
};
const unsigned char* playerRunSeq[8] = {
playerRun1, playerRun2, playerRun3,
playerRun1, playerRun2, playerRun3,
playerRun1, playerRun2,
}; };
/// GAME LOGIC /// GAME LOGIC
@ -184,7 +180,7 @@ typedef struct Level {
} Level; } Level;
#define MAX_LEVELS 32 #define MAX_LEVELS 32
#define GAPSIZE 3 #define GAPSIZE 4
Level levels[MAX_LEVELS]; Level levels[MAX_LEVELS];
@ -207,15 +203,20 @@ void make_levels() {
Level* prevlev = &levels[0]; Level* prevlev = &levels[0];
for (i=0; i<MAX_LEVELS; i++) { for (i=0; i<MAX_LEVELS; i++) {
Level* lev = &levels[i]; Level* lev = &levels[i];
lev->height = rndint(4,7); lev->height = rndint(2,5)*2;
lev->ladder1 = rndint(1,14);
lev->ladder2 = rndint(1,14);
do { do {
lev->gap = i>0 ? rndint(0,13) : 0; lev->gap = i>0 ? rndint(0,13) : 0;
} while (ladder_in_gap(prevlev->ladder1, lev->gap) || } while (ladder_in_gap(prevlev->ladder1, lev->gap) ||
ladder_in_gap(prevlev->ladder2, lev->gap)); ladder_in_gap(prevlev->ladder2, lev->gap));
do {
lev->ladder1 = rndint(1,14);
lev->ladder2 = rndint(1,14);
} while (ladder_in_gap(lev->ladder1, lev->gap) ||
ladder_in_gap(lev->ladder2, lev->gap));
lev->objtype = rndint(1,3); lev->objtype = rndint(1,3);
lev->objpos = rndint(1,14); do {
lev->objpos = rndint(1,14);
} while (ladder_in_gap(lev->objpos, lev->gap));
lev->ypos = y; lev->ypos = y;
y += lev->height; y += lev->height;
prevlev = lev; prevlev = lev;
@ -238,18 +239,30 @@ static byte player_screen_y = 0;
void create_actors_on_level(byte i); void create_actors_on_level(byte i);
// TODO: crashes when drawing top floor
void draw_level_line(byte screen_y) { void draw_level_line(byte screen_y) {
char buf[COLS]; char buf[COLS];
byte i; char attrs[8];
byte y = screen_y; // + scroll_tile_y byte level, i;
for (i=0; i<MAX_LEVELS; i++) { byte y = screen_y;
Level* lev = &levels[i]; byte rowy;
word addr;
for (level=0; level<MAX_LEVELS; level++) {
Level* lev = &levels[level];
byte dy = y - lev->ypos; byte dy = y - lev->ypos;
// is this level visible on-screen? // is this level visible on-screen?
if (dy < lev->height) { if (dy < lev->height) {
if (dy == 0) { if (dy <= 1) {
// draw floor // draw floor
memset(buf, CH_FLOOR, COLS); for (i=0; i<COLS; i+=2) {
if (dy) {
buf[i] = CH_FLOOR;
buf[i+1] = CH_FLOOR+1;
} else {
buf[i] = CH_FLOOR+2;
buf[i+1] = CH_FLOOR+3;
}
}
// draw the gap // draw the gap
if (lev->gap) if (lev->gap)
memset(buf+lev->gap*2, 0, GAPSIZE); memset(buf+lev->gap*2, 0, GAPSIZE);
@ -257,8 +270,8 @@ void draw_level_line(byte screen_y) {
// draw empty space // draw empty space
memset(buf, 0, sizeof(buf)); memset(buf, 0, sizeof(buf));
// draw walls // draw walls
if (i < MAX_LEVELS-1) { if (level < MAX_LEVELS-1) {
buf[0] = CH_FLOOR; buf[0] = CH_FLOOR+1;
buf[COLS-1] = CH_FLOOR; buf[COLS-1] = CH_FLOOR;
} }
// draw ladders // draw ladders
@ -271,25 +284,41 @@ void draw_level_line(byte screen_y) {
buf[lev->ladder2*2+1] = CH_LADDER+1; buf[lev->ladder2*2+1] = CH_LADDER+1;
} }
} }
//buf[0] = i+'a';buf[1] = y;buf[2] = dy+'0';buf[3] = lev->ypos;buf[4] = lev->height+'0';
// draw object, if it exists // draw object, if it exists
if (lev->objtype) { if (lev->objtype) {
byte ch = lev->objtype*4 + CH_FRUIT - 4; byte ch = lev->objtype*4 + CH_FRUIT - 4;
if (dy == 1) { if (dy == 2) {
buf[lev->objpos*2] = ch+2; buf[lev->objpos*2] = ch+2;
buf[lev->objpos*2+1] = ch+3; buf[lev->objpos*2+1] = ch+3;
} }
else if (dy == 2) { else if (dy == 3) {
buf[lev->objpos*2] = ch+0; buf[lev->objpos*2] = ch+0;
buf[lev->objpos*2+1] = ch+1; buf[lev->objpos*2+1] = ch+1;
} }
} }
// compute row in name buffer and address
rowy = (ROWS-1) - (screen_y%60);
addr = getntaddr(1, rowy);
// copy attribute table (every 4th row)
if ((addr & 0x60) == 0) {
byte a;
if (dy==1)
a = 0x05;
else if (dy==3)
a = 0x50;
else
a = 0x00;
memset(attrs, a, 8);
// TODO: this misses one row at the end?
putbytes(nt2attraddr(addr), attrs, 8);
}
// copy line to screen buffer // copy line to screen buffer
putbytes(1, (ROWS-1)-(screen_y%60), buf, COLS); putbytes(addr, buf, COLS);
// create actors on this level, if needed // create actors on this level, if needed
// TODO: maybe this happens too early? // TODO: maybe this happens too early?
if (dy == 0) if (dy == 0 && level > 0) {
create_actors_on_level(i); create_actors_on_level(level);
}
break; break;
} }
} }
@ -303,16 +332,17 @@ void draw_screen() {
} }
word get_floor_yy(byte level) { word get_floor_yy(byte level) {
return levels[level].ypos * 8 + 8; return levels[level].ypos * 8 + 16;
} }
word get_ceiling_yy(byte level) { word get_ceiling_yy(byte level) {
return (levels[level].ypos + levels[level].height) * 8 + 8; return (levels[level].ypos + levels[level].height) * 8 + 16;
} }
void set_scroll_pixel_yy(int yy) { void set_scroll_pixel_yy(int yy) {
if ((yy & 7) == 0) { if ((yy & 7) == 0) {
// draw an offscreen line // draw an offscreen line
// TODO: doesn't work when going downward
draw_level_line(scroll_tile_y+30); draw_level_line(scroll_tile_y+30);
} }
scroll_pixel_yy = yy; scroll_pixel_yy = yy;
@ -323,7 +353,7 @@ void set_scroll_pixel_yy(int yy) {
void refresh_level(byte level) { void refresh_level(byte level) {
byte y = levels[level].ypos; byte y = levels[level].ypos;
draw_level_line(y+2); draw_level_line(y+2);
draw_level_line(y+1); draw_level_line(y+3);
} }
// ACTORS // ACTORS
@ -366,12 +396,14 @@ void create_actors_on_level(byte level_index) {
a->x = level->ladder1 ^ (level->ladder2<<3) ^ (level->gap<<6); a->x = level->ladder1 ^ (level->ladder2<<3) ^ (level->gap<<6);
a->yy = get_floor_yy(level_index); a->yy = get_floor_yy(level_index);
a->level = level_index; a->level = level_index;
a->onscreen = 1;
} }
} }
byte draw_actor(byte oam_id, byte i) { byte draw_actor(byte oam_id, byte i) {
struct Actor* a = &actors[i]; struct Actor* a = &actors[i];
const unsigned char* meta = playerStand; bool dir = a->dir;
const unsigned char* meta;
byte x,y; // sprite variables byte x,y; // sprite variables
int screen_y = SCREEN_Y_BOTTOM - a->yy + scroll_pixel_yy; int screen_y = SCREEN_Y_BOTTOM - a->yy + scroll_pixel_yy;
if (screen_y > 192+8 || screen_y < -18) { if (screen_y > 192+8 || screen_y < -18) {
@ -383,30 +415,34 @@ byte draw_actor(byte oam_id, byte i) {
a->onscreen = 0; a->onscreen = 0;
return oam_id; // inactive, offscreen return oam_id; // inactive, offscreen
case STANDING: case STANDING:
meta = playerStand; meta = dir ? playerLStand : playerRStand;
break; break;
case WALKING: case WALKING:
meta = playerRunSeq[(a->x >> 1) & 7]; meta = playerRunSeq[((a->x >> 1) & 7) + (dir?0:8)];
break; break;
case JUMPING: case JUMPING:
meta = playerJump; meta = dir ? playerLJump : playerRJump;
break; break;
case FALLING: case FALLING:
meta = playerSad; meta = dir ? playerLSad : playerRSad;
break; break;
case CLIMBING: case CLIMBING:
meta = playerClimb; meta = (a->yy & 4) ? playerLClimb : playerRClimb;
break; break;
} }
// set sprite values // set sprite values
x = a->x; x = a->x;
y = screen_y; y = screen_y;
/*
tag = a->color1 | 0x80;
*/
if (i == 0)
player_screen_y = y;
oam_id = oam_meta_spr(x, y, oam_id, meta); oam_id = oam_meta_spr(x, y, oam_id, meta);
// actor 0 is player sprite
if (i == 0) {
player_screen_y = y; // last screen Y position
// set special palette for player sprites
OAMBUF[0+2] |= 3;
OAMBUF[4+2] |= 3;
OAMBUF[8+2] |= 3;
OAMBUF[12+2] |= 3;
}
a->onscreen = 1; a->onscreen = 1;
return oam_id; return oam_id;
} }
@ -483,7 +519,7 @@ void move_actor(struct Actor* actor, byte joystick, bool scroll) {
if (joystick & PAD_A) { if (joystick & PAD_A) {
actor->state = JUMPING; actor->state = JUMPING;
actor->u.jumping.xvel = 0; actor->u.jumping.xvel = 0;
actor->u.jumping.yvel = 15; actor->u.jumping.yvel = JUMP_VELOCITY;
if (joystick & PAD_LEFT) actor->u.jumping.xvel = -1; if (joystick & PAD_LEFT) actor->u.jumping.xvel = -1;
if (joystick & PAD_RIGHT) actor->u.jumping.xvel = 1; if (joystick & PAD_RIGHT) actor->u.jumping.xvel = 1;
} else if (joystick & PAD_LEFT) { } else if (joystick & PAD_LEFT) {
@ -528,8 +564,12 @@ void move_actor(struct Actor* actor, byte joystick, bool scroll) {
} }
break; break;
case JUMPING:
case FALLING: case FALLING:
if (scroll) {
check_scroll_up();
check_scroll_down();
}
case JUMPING:
actor->x += actor->u.jumping.xvel; actor->x += actor->u.jumping.xvel;
actor->yy += actor->u.jumping.yvel/4; actor->yy += actor->u.jumping.yvel/4;
actor->u.jumping.yvel -= 1; actor->u.jumping.yvel -= 1;
@ -647,22 +687,20 @@ void play_scene() {
while (actors[0].level != MAX_LEVELS-1) { while (actors[0].level != MAX_LEVELS-1) {
//set_scroll_pixel_yy(scroll_pixel_yy+1); //set_scroll_pixel_yy(scroll_pixel_yy+1);
cflushnow(); cflushnow();
//ppu_wait_frame();
refresh_actors(); refresh_actors();
move_player(); move_player();
// move all the actors // move all the actors
for (i=1; i<MAX_ACTORS; i++) { for (i=1; i<MAX_ACTORS; i++) {
move_actor(&actors[i], rand(), false); move_actor(&actors[i], rand8(), false);
} }
// see if the player hit another actor // see if the player hit another actor
/* TODO // test sprite 0 collision flag
if (cv_get_sprite_collission()) { if (PPU.status & 0x40) {
if (actors[0].level > BOTTOM_LEVEL_Y if (actors[0].level > BOTTOM_LEVEL_Y
&& check_collision(&actors[0])) { && check_collision(&actors[0])) {
fall_down(&actors[0]); fall_down(&actors[0]);
} }
} }
*/
} }
blimp_pickup_scene(); blimp_pickup_scene();
@ -683,6 +721,7 @@ const char PALETTE[32] = {
}; };
void setup_graphics() { void setup_graphics() {
ppu_off();
vram_adr(0x0); vram_adr(0x0);
vram_write((unsigned char*)TILESET, sizeof(TILESET)); vram_write((unsigned char*)TILESET, sizeof(TILESET));
pal_all(PALETTE); pal_all(PALETTE);
@ -691,7 +730,9 @@ void setup_graphics() {
} }
void main() { void main() {
setup_graphics(); while (1) {
make_levels(); setup_graphics();
play_scene(); make_levels();
play_scene();
}
} }

66
src/platform/nes.ts
View File

@ -70,7 +70,9 @@ const _JSNESPlatform = function(mainElement) {
var video, audio, timer; var video, audio, timer;
const audioFrequency = 44030; //44100 const audioFrequency = 44030; //44100
var frameindex = 0; var frameindex = 0;
var nsamples = 0; var ntvideo;
var ntlastbuf;
var ntvisible;
class JSNESPlatform extends Base6502Platform implements Platform { class JSNESPlatform extends Base6502Platform implements Platform {
debugPCDelta = 1; debugPCDelta = 1;
@ -79,24 +81,35 @@ const _JSNESPlatform = function(mainElement) {
start() { start() {
var self = this; var self = this;
video = new RasterVideo(mainElement,256,224,{overscan:true}); var debugbar = $("<div>").appendTo(mainElement);
audio = new SampleAudio(audioFrequency); audio = new SampleAudio(audioFrequency);
video = new RasterVideo(mainElement,256,224,{overscan:true});
video.create(); video.create();
// debugging view
ntvideo = new RasterVideo(mainElement,512,480,{overscan:false});
ntvideo.create();
$(ntvideo.canvas).hide();
ntvisible = false;
ntlastbuf = new Uint32Array(0x1000);
ntlastbuf.fill(-1);
// toggle buttons
$('<button>').text("Video").appendTo(debugbar).click(() => { $(video.canvas).toggle() });
$('<button>').text("Nametable").appendTo(debugbar).click(() => { $(ntvideo.canvas).toggle() });
var idata = video.getFrameData(); var idata = video.getFrameData();
nes = new jsnes.NES({ nes = new jsnes.NES({
onFrame: function(frameBuffer) { onFrame: (frameBuffer : number[]) => {
for (var i=0; i<frameBuffer.length; i++) for (var i=0; i<frameBuffer.length; i++)
idata[i] = frameBuffer[i] | 0xff000000; idata[i] = frameBuffer[i] | 0xff000000;
video.updateFrame(); video.updateFrame();
frameindex++; frameindex++;
//if (frameindex == 2000) console.log(nsamples*60/frameindex,'Hz'); this.updateDebugViews();
}, },
onAudioSample: function(left, right) { onAudioSample: (left:number, right:number) => {
if (frameindex < 10) if (frameindex < 10)
audio.feedSample(0, 1); // avoid popping at powerup audio.feedSample(0, 1); // avoid popping at powerup
else else
audio.feedSample(left+right, 1); audio.feedSample(left+right, 1);
//nsamples++;
}, },
onStatusUpdate: function(s) { onStatusUpdate: function(s) {
console.log(s); console.log(s);
@ -130,7 +143,46 @@ const _JSNESPlatform = function(mainElement) {
advance(novideo : boolean) { advance(novideo : boolean) {
nes.frame(); nes.frame();
} }
updateDebugViews() {
//console.log(nes.ppu);
var a = 0;
var attraddr = 0;
var idata = ntvideo.getFrameData();
var baseTile = nes.ppu.regS === 0 ? 0 : 256;
for (var row=0; row<60; row++) {
for (var col=0; col<64; col++) {
a = 0x2000 + (col&31) + ((row%30)*32);
if (col >= 32) a += 0x400;
if (row >= 30) a += 0x800;
var name = nes.ppu.mirroredLoad(a) + baseTile;
var t = nes.ppu.ptTile[name];
attraddr = (a & 0x2c00) | 0x3c0 | (a & 0x0C00) | ((a >> 4) & 0x38) | ((a >> 2) & 0x07);
var attr = nes.ppu.mirroredLoad(attraddr);
var tag = name ^ (attr<<9);
if (tag != ntlastbuf[a & 0xfff]) {
ntlastbuf[a & 0xfff] = tag;
var i = row*64*8*8 + col*8;
var j = 0;
var attrshift = (col&2) + ((a&0x40)>>4);
var coloradd = ((attr >> attrshift) & 3) << 2;
for (var y=0; y<8; y++) {
for (var x=0; x<8; x++) {
var color = t.pix[j++] + coloradd;
var rgb = nes.ppu.imgPalette[color];
idata[i++] = rgb;
}
i += 64*8-8;
}
}
}
}
for (var i=0; i<idata.length; i++) {
idata[i] = idata[i] | 0xff000000;
}
ntvideo.updateFrame();
}
loadROM(title, data) { loadROM(title, data) {
var romstr = String.fromCharCode.apply(null, data); var romstr = String.fromCharCode.apply(null, data);