Cuptain/SegaRaycast
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

did stuff

Browse Source
This commit is contained in:
Samuel Walker 2024-08-30 22:53:22 -06:00
parent 18fb5dd971
commit 10ed515e86
1 changed files with 18 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
src/main.c
View File

@ -31,34 +31,6 @@ void castRay(s16 angle){
fix16 dx = cosFix16(ind); fix16 dx = cosFix16(ind);
fix16 tan = FIX16(0); fix16 tan = FIX16(0);
if(dx != 0) tan = fix16Div(dy, dx); if(dx != 0) tan = fix16Div(dy, dx);
char str[9];
sprintf(str, "Ang: %4d", angle);
BMP_drawText(str, 20, 0);
char str2[13];
bool neg = false;
fix16 nsin = dy;
if (dy < 0){
neg = true;
nsin = 0 - nsin;
}
sprintf(str2, "Sin: %s%3d.%03d", neg ? "-" : " ", nsin >> FIX16_FRAC_BITS, 1000*fix16Frac(nsin)/(1<<FIX16_FRAC_BITS));
BMP_drawText(str2, 20, 1);
neg = false;
fix16 ncos = dx;
if (dx < 0){
neg = true;
ncos = 0 - ncos;
}
sprintf(str2, "Cos: %s%3d.%03d", neg ? "-" : " ", ncos >> FIX16_FRAC_BITS, 1000*fix16Frac(ncos)/(1<<FIX16_FRAC_BITS));
BMP_drawText(str2, 20, 2);
neg = false;
fix16 ntan = tan;
if (tan < 0){
neg = true;
ntan = 0 - ntan;
}
sprintf(str2, "Tan: %s%3d.%03d", neg ? "-" : " ", ntan >> FIX16_FRAC_BITS, 1000*fix16Frac(ntan)/(1<<FIX16_FRAC_BITS));
BMP_drawText(str2, 20, 3);
fix16 aTan = FIX16(0); fix16 aTan = FIX16(0);
if(tan != 0) aTan = fix16Div(FIX16(-1), tan); if(tan != 0) aTan = fix16Div(FIX16(-1), tan);
s16 tanInt = fix16ToInt(fix16Mul(aTan, FIX16(100))); s16 tanInt = fix16ToInt(fix16Mul(aTan, FIX16(100)));
@ -107,7 +79,13 @@ void castRay(s16 angle){
fix16 distV = FIX16(500); fix16 distV = FIX16(500);
fix16 vx = FIX16(l.pt1.x); fix16 vx = FIX16(l.pt1.x);
fix16 vy = FIX16(l.pt1.y); fix16 vy = FIX16(l.pt1.y);
float nTan = 0-tan; fix16 nTan = 0-tan;
if(fix16ToInt(nTan) > 51){
nTan = FIX16(51);
}
if(fix16ToInt(nTan) < -51){
nTan = FIX16(-51);
}
if(angle > 90 && r < 270) { if(angle > 90 && r < 270) {
rx = FIX16(l.pt1.x / 10 * 10)-FIX16(1); rx = FIX16(l.pt1.x / 10 * 10)-FIX16(1);
ry = fix16Mul(FIX16(l.pt1.x) - rx,nTan) + FIX16(l.pt1.y); ry = fix16Mul(FIX16(l.pt1.x) - rx,nTan) + FIX16(l.pt1.y);
@ -152,6 +130,8 @@ void castRay(s16 angle){
l.pt2.x = fix16ToInt(hx); l.pt2.x = fix16ToInt(hx);
l.pt2.y = fix16ToInt(hy); l.pt2.y = fix16ToInt(hy);
} }
} }
void mapscan(){ void mapscan(){
@ -184,15 +164,17 @@ void render(){
mapscan(); mapscan();
if(angle >= 360) angle = angle - 360; if(angle >= 360) angle = angle - 360;
if(angle < 0) angle = 360 + angle; if(angle < 0) angle = 360 + angle;
//castRay(angle-20); castRay(angle-20);
//BMP_drawLine(&l); BMP_drawLine(&l);
//castRay(angle-10); castRay(angle-10);
//BMP_drawLine(&l); BMP_drawLine(&l);
for (int i = 0; i < 16; i++){
castRay(angle); castRay(angle);
//BMP_drawLine(&l); //BMP_drawLine(&l);
//castRay(angle+10); }
//BMP_drawLine(&l); castRay(angle+10);
//castRay(angle+20); BMP_drawLine(&l);
castRay(angle+20);
BMP_drawLine(&l); BMP_drawLine(&l);
BMP_showFPS(0); BMP_showFPS(0);