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rotation and translation work

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This commit is contained in:
farisawan-2000
2020-12-12 18:50:26 -05:00
parent aef2b9c8af
commit 87b4a3195e
4 changed files with 121 additions and 10 deletions
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4
mtx.c
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@@ -42,8 +42,8 @@ void mat2_ident(uObjMtx *dst, int scale) {
// cos -sin sin cos
void mat2_rotate(uObjMtx *dst, f32 degrees) {
dst->m.A = ftoq(cosf(degrees));
dst->m.B = ftoq(-sinf(degrees));
dst->m.C = ftoq(sinf(degrees));
dst->m.B = ftoq(sinf(degrees));
dst->m.C = ftoq(-sinf(degrees));
dst->m.D = ftoq(cosf(degrees));
}

2
s2d_draw.c
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@@ -86,7 +86,7 @@ void draw_s2d_glyph(char c, int x, int y, uObjMtx *mt) {
setup_font(c);
// mtx_pipeline(mt, x, y);
mtx_pipeline2(mt, x, y);
mtx_pipeline(mt, x, y);
gSPObjSprite(gDisplayListHead++, &s2d_font);
}

41
s2d_parse.c
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@@ -7,37 +7,64 @@
int saved_degrees = 0;
int s2d_atoi(char *s, char **s2) {
int ret = 0;
int isNegative = (*s == '-');
if (isNegative) {
s++;
(*s2)++;
}
for (; *s != '\0' && *s != ' ' && *s >= '0' && *s <= '9'; s++) {
ret *= 10;
if (*s >= '0' && *s <= '9')
ret += *s - '0';
else break;
if (!(*(s+1) != '\0' && *(s+1) != ' ' && *(s+1) >= '0' && *(s+1) <= '9')) break;
(*s2)++;
}
if (isNegative) ret *= -1;
return ret;
}
void s2d_print(int x, int y, const char *str, uObjMtx *buf) {
char *p = str;
int tx = 0, ty = 0;
if (*p == '\0') return;
do {
char r = *p;
char s, rd, tx, ty;
int s, rd;
switch (r) {
case CH_SCALE:
s = CH_GET_NEXT(p);
CH_GET_NEXT(p);
s = s2d_atoi(p, &p);
myScale = s;
break;
case CH_ROT:
rd = CH_GET_NEXT(p);
CH_GET_NEXT(p);
rd = s2d_atoi(p, &p);
saved_degrees = rd;
myDegrees = rd;
break;
case CH_TRANSLATE:
tx = CH_GET_NEXT(p);
ty = CH_GET_NEXT(p);
CH_GET_NEXT(p);
tx = s2d_atoi(p, &p);
CH_GET_NEXT(p);
CH_GET_NEXT(p);
ty = s2d_atoi(p, &p);
break;
default:
if (myDegrees == 0)
draw_s2d_glyph(r, x += (8 * myScale), y, (buf++));
draw_s2d_glyph(r, (x += (8 * myScale)) + tx, y + ty, (buf++));
else
draw_s2d_glyph(r, x += ((8 * myScale)), y, (buf++));
draw_s2d_glyph(r, (x += ((8 * myScale))) + tx, y + ty, (buf++));
}
// myDegrees += saved_degrees;
} while (*(++p) != '\0');
myScale = 1;
myDegrees = 0;
saved_degrees = 0;
tx = 0;
ty = 0;
}

84
x86_testing_ground/atoi.c Normal file
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@@ -0,0 +1,84 @@
int s2d_atoi(char *s, char **s2) {
int ret = 0;
int isNegative = (*s == '-');
if (isNegative) {s++; (*s2)++;}
for (; *s != '\0' && *s != ' ' && *s >= '0' && *s <= '9'; s++) {
ret *= 10;
if (*s >= '0' && *s <= '9')
ret += *s - '0';
else break;
if (!(*(s+1) != '\0' && *(s+1) != ' ' && *(s+1) >= '0' && *(s+1) <= '9')) break;
(*s2)++;
}
if (isNegative) ret *= -1;
return ret;
}
#define SCALE "\x80" // SCALE (some scale)
#define ROTATE "\x81" // ROTATE (degrees) // TODO: maybe add axis?
#define TRANSLATE "\x82" // TRANSLATE (x) (y)
#define CH_SCALE '\x80'
#define CH_ROT '\x81'
#define CH_TRANSLATE '\x82'
#define CH_GET_NEXT(x) (*(++x))
int saved_degrees = 0;
int myScale = 1;
int myDegrees = 0;
char *t = "TEST" TRANSLATE "10 10CRINGE";
void s2d_print(int x, int y, const char *str) {
char *p = str;
if (*p == '\0') return;
do {
char r = *p;
int s, rd, tx = 0, ty = 0;
switch (r) {
case CH_SCALE:
s = CH_GET_NEXT(p);
printf("%s\n", p);
s = s2d_atoi(p, &p);
printf("%d\n", s);
myScale = s;
break;
case CH_ROT:
rd = CH_GET_NEXT(p);
saved_degrees = rd;
myDegrees = rd;
break;
case CH_TRANSLATE:
CH_GET_NEXT(p);
tx = s2d_atoi(p, &p);
printf("%d\n", tx);
CH_GET_NEXT(p);
CH_GET_NEXT(p);
ty = s2d_atoi(p, &p);
// CH_GET_NEXT(p);
printf("%d\n", ty);
break;
default:
printf("%c %d\n",r, myScale);
}
// myDegrees += saved_degrees;
} while (*(++p) != '\0');
myScale = 1;
myDegrees = 0;
saved_degrees = 0;
}
int main(void) {
char *s = t;
s++;
s++;
s++;
s++;
// printf("%d\n", s2d_atoi(s, &s));
// printf("%s\n", s);
s2d_print(0,0, t);
// printf("%d\n", s2d_atoi("3582932j"));
}