ref: f8f46fc1e422219a216d8ab7ebbe34f76c52bc87
dir: /src/BulHit.cpp/
#include "BulHit.h"
#include <stdio.h>
#include <string.h>
#include "Bullet.h"
#include "Caret.h"
#include "Game.h"
#include "Map.h"
#include "MyChar.h"
#include "NpChar.h"
#include "Sound.h"
void Vanish(BULLET *bul)
{
if (bul->code_bullet != 37 && bul->code_bullet != 38 && bul->code_bullet != 39)
PlaySoundObject(28, 1);
else
SetCaret(bul->x, bul->y, 2, 1);
bul->cond = 0;
SetCaret(bul->x, bul->y, 2, 2);
}
int JudgeHitBulletBlock(int x, int y, BULLET *bul)
{
int hit = 0;
if (bul->x - bul->blockXL < (2 * x + 1) << 12
&& bul->blockXL + bul->x > (2 * x - 1) << 12
&& bul->y - bul->blockYL < (2 * y + 1) << 12
&& bul->blockYL + bul->y > (2 * y - 1) << 12)
hit = 0x200;
if (hit && (bul->bbits & 0x60) && GetAttribute(x, y) == 0x43)
{
if (!(bul->bbits & 0x40))
bul->cond = 0;
SetCaret(bul->x, bul->y, 2, 0);
PlaySoundObject(12, 1);
for (int i = 0; i < 4; i++)
SetNpChar(4, x << 13, y << 13, Random(-0x200, 0x200), Random(-0x200, 0x200), 0, 0, 256);
ShiftMapParts(x, y);
}
return hit;
}
int JudgeHitBulletBlock2(int x, int y, uint8_t *atrb, BULLET *bul)
{
int hit = 0;
int block[4];
if (bul->bbits & 0x40)
{
for (int i = 0; i < 4; i++)
{
block[i] = *atrb == 0x41 || *atrb == 0x61;
++atrb;
}
}
else
{
for (int i = 0; i < 4; i++)
{
block[i] = *atrb == 0x41 || *atrb == 0x43 || *atrb == 0x61;
++atrb;
}
}
int workX = (2 * x + 1) << 12;
int workY = (2 * y + 1) << 12;
//Left wall
if (block[0] && block[2])
{
if (bul->x - bul->blockXL < workX)
hit |= 1;
}
else if (!block[0] || block[2])
{
if (!block[0] && block[2] && bul->x - bul->blockXL < workX && bul->blockYL + bul->y > workY + 0x600)
hit |= 1;
}
else if (bul->x - bul->blockXL < workX && bul->y - bul->blockYL < workY - 0x600)
{
hit |= 1;
}
//Right wall
if (block[1] && block[3])
{
if (bul->x + bul->blockXL > workX)
hit |= 4;
}
else if (!block[1] || block[3])
{
if (!block[1] && block[3] && bul->x + bul->blockXL > workX && bul->blockYL + bul->y > workY + 0x600)
hit |= 4;
}
else if (bul->x + bul->blockXL > workX && bul->y - bul->blockYL < workY - 0x600)
{
hit |= 4;
}
//Ceiling
if (block[0] && block[1])
{
if (bul->y - bul->blockYL < workY)
hit |= 2;
}
else if (!block[0] || block[1])
{
if (!block[0] && block[1] && bul->y - bul->blockYL < workY && bul->blockXL + bul->x > workX + 0x600)
hit |= 2;
}
else if (bul->y - bul->blockYL < workY && bul->x - bul->blockXL < workX - 0x600)
{
hit |= 2;
}
//Ground
if (block[2] && block[3])
{
if (bul->y + bul->blockYL > workY)
hit |= 8;
}
else if (!block[2] || block[3])
{
if (!block[2] && block[3] && bul->y + bul->blockYL > workY && bul->blockXL + bul->x > workX + 0x600)
hit |= 8;
}
else if (bul->y + bul->blockYL > workY && bul->x - bul->blockXL < workX - 0x600)
{
hit |= 8;
}
//Clip
if (bul->bbits & 8)
{
if (hit & 1)
bul->x = workX + bul->blockXL;
else if (hit & 4)
bul->x = workX - bul->blockXL;
else if (hit & 2)
bul->y = workY + bul->blockYL;
else if (hit & 8)
bul->y = workY - bul->blockYL;
}
else if (hit & 0xF)
{
Vanish(bul);
}
return hit;
}
int JudgeHitBulletTriangleA(int x, int y, BULLET *bul)
{
int hit = 0;
if (bul->x < (2 * x + 1) << 12
&& bul->x > (2 * x - 1) << 12
&& bul->y - 0x400 < (y << 13) - (-0x2000 * x + bul->x) / 2 + 0x800
&& bul->y + 0x400 > (2 * y - 1) << 12)
{
if (bul->bbits & 8)
bul->y = (y << 13) - (-0x2000 * x + bul->x) / 2 + 0xC00;
else
Vanish(bul);
hit = 0x82;
}
return hit;
}
int JudgeHitBulletTriangleB(int x, int y, BULLET *bul)
{
int hit = 0;
if (bul->x < (2 * x + 1) << 12
&& bul->x > (2 * x - 1) << 12
&& bul->y - 0x400 < (y << 13) - (-0x2000 * x + bul->x) / 2 - 0x800
&& bul->y + 0x400 > (2 * y - 1) << 12)
{
if (bul->bbits & 8)
bul->y = (y << 13) - (-0x2000 * x + bul->x) / 2 - 0x400;
else
Vanish(bul);
hit = 0x82;
}
return hit;
}
int JudgeHitBulletTriangleC(int x, int y, BULLET *bul)
{
int hit = 0;
if (bul->x < (2 * x + 1) << 12
&& bul->x > (2 * x - 1) << 12
&& bul->y - 0x400 < (y << 13) + (-0x2000 * x + bul->x) / 2 - 0x800
&& bul->y + 0x400 > (2 * y - 1) << 12)
{
if (bul->bbits & 8)
bul->y = (y << 13) + (-0x2000 * x + bul->x) / 2 - 0x400;
else
Vanish(bul);
hit = 0x82;
}
return hit;
}
int JudgeHitBulletTriangleD(int x, int y, BULLET *bul)
{
int hit = 0;
if (bul->x < (2 * x + 1) << 12
&& bul->x > (2 * x - 1) << 12
&& bul->y - 0x400 < (y << 13) + (-0x2000 * x + bul->x) / 2 + 0x800
&& bul->y + 0x400 > (2 * y - 1) << 12)
{
if (bul->bbits & 8)
bul->y = (y << 13) + (-0x2000 * x + bul->x) / 2 + 0xC00;
else
Vanish(bul);
hit = 0x82;
}
return hit;
}
int JudgeHitBulletTriangleE(int x, int y, BULLET *bul)
{
int hit = 0;
if (bul->x < (2 * x + 1) << 12
&& bul->x - 0x200 > (2 * x - 1) << 12
&& bul->y + 0x400 > (y << 13) + (-0x2000 * x + bul->x) / 2 - 0x800
&& bul->y - 0x400 < (2 * y + 1) << 12 )
{
if (bul->bbits & 8)
bul->y = (y << 13) + (-0x2000 * x + bul->x) / 2 - 0xC00;
else
Vanish(bul);
hit = 0x28;
}
return hit;
}
int JudgeHitBulletTriangleF(int x, int y, BULLET *bul)
{
int hit = 0;
if (bul->x < (2 * x + 1) << 12
&& bul->x > (2 * x - 1) << 12
&& bul->y + 0x400 > (y << 13) + (-0x2000 * x + bul->x) / 2 + 0x800
&& bul->y - 0x400 < (2 * y + 1) << 12)
{
if (bul->bbits & 8)
bul->y = (y << 13) + (-0x2000 * x + bul->x) / 2 + 0x400;
else
Vanish(bul);
hit = 0x28;
}
return hit;
}
int JudgeHitBulletTriangleG(int x, int y, BULLET *bul)
{
int hit = 0;
if (bul->x < (2 * x + 1) << 12
&& bul->x > (2 * x - 1) << 12
&& bul->y + 0x400 > (y << 13) - (-0x2000 * x + bul->x) / 2 + 0x800
&& bul->y - 0x400 < (2 * y + 1) << 12)
{
if (bul->bbits & 8)
bul->y = (y << 13) - (-0x2000 * x + bul->x) / 2 + 0x400;
else
Vanish(bul);
hit = 0x18;
}
return hit;
}
int JudgeHitBulletTriangleH(int x, int y, BULLET *bul)
{
int hit = 0;
if (bul->x < (2 * x + 1) << 12
&& bul->x > (2 * x - 1) << 12
&& bul->y + 0x400 > (y << 13) - (-0x2000 * x + bul->x) / 2 - 0x800
&& bul->y - 0x400 < (2 * y + 1) << 12 )
{
if (bul->bbits & 8)
bul->y = (y << 13) - (-0x2000 * x + bul->x) / 2 - 0xC00;
else
Vanish(bul);
hit = 0x18;
}
return hit;
}
void HitBulletMap()
{
for (int i = 0; i < BULLET_MAX; i++)
{
if (gBul[i].cond & 0x80)
{
int x = gBul[i].x / 0x2000;
int y = gBul[i].y / 0x2000;
//Get surrounding tiles
int offy[4];
int offx[4];
offx[0] = 0;
offx[1] = 1;
offx[2] = 0;
offx[3] = 1;
offy[0] = 0;
offy[1] = 0;
offy[2] = 1;
offy[3] = 1;
uint8_t atrb[4];
atrb[0] = GetAttribute(x, y);
atrb[1] = GetAttribute(x + 1, y);
atrb[2] = GetAttribute(x, y + 1);
atrb[3] = GetAttribute(x + 1, y + 1);
//Clear hit tiles
gBul[i].flag = 0;
if (!(gBul[i].bbits & 4))
{
for (int j = 0; j < 4; j++)
{
if (gBul[i].cond & 0x80)
{
switch (atrb[j])
{
case 0x41:
case 0x43:
case 0x44:
case 0x61:
case 0x64:
gBul[i].flag |= JudgeHitBulletBlock(x + offx[j], y + offy[j], &gBul[i]);
break;
case 0x50:
case 0x70:
gBul[i].flag |= JudgeHitBulletTriangleA(x + offx[j], y + offy[j], &gBul[i]);
break;
case 0x51:
case 0x71:
gBul[i].flag |= JudgeHitBulletTriangleB(x + offx[j], y + offy[j], &gBul[i]);
break;
case 0x52:
case 0x72:
gBul[i].flag |= JudgeHitBulletTriangleC(x + offx[j], y + offy[j], &gBul[i]);
break;
case 0x53:
case 0x73:
gBul[i].flag |= JudgeHitBulletTriangleD(x + offx[j], y + offy[j], &gBul[i]);
break;
case 0x54:
case 0x74:
gBul[i].flag |= JudgeHitBulletTriangleE(x + offx[j], y + offy[j], &gBul[i]);
break;
case 0x55:
case 0x75:
gBul[i].flag |= JudgeHitBulletTriangleF(x + offx[j], y + offy[j], &gBul[i]);
break;
case 0x56:
case 0x76:
gBul[i].flag |= JudgeHitBulletTriangleG(x + offx[j], y + offy[j], &gBul[i]);
break;
case 0x57:
case 0x77:
gBul[i].flag |= JudgeHitBulletTriangleH(x + offx[j], y + offy[j], &gBul[i]);
break;
default:
break;
}
}
}
gBul[i].flag |= JudgeHitBulletBlock2(x, y, atrb, &gBul[i]);
}
}
}
}