440 lines
9.4 KiB
C++
440 lines
9.4 KiB
C++
// THIS IS DECOMPILED PROPRIETARY CODE - USE AT YOUR OWN RISK.
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//
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// The original code belongs to Daisuke "Pixel" Amaya.
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//
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// Modifications and custom code are under the MIT licence.
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// See LICENCE.txt for details.
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#include "BulHit.h"
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#include <stddef.h>
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#include "WindowsWrapper.h"
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#include "Bullet.h"
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#include "Caret.h"
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#include "CommonDefines.h"
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#include "Game.h"
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#include "Map.h"
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#include "NpChar.h"
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#include "Sound.h"
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static void Vanish(BULLET *bul)
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{
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if (bul->code_bullet != 37 && bul->code_bullet != 38 && bul->code_bullet != 39)
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PlaySoundObject(28, SOUND_MODE_PLAY);
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else
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SetCaret(bul->x, bul->y, CARET_PROJECTILE_DISSIPATION, DIR_UP);
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bul->cond = 0;
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SetCaret(bul->x, bul->y, CARET_PROJECTILE_DISSIPATION, DIR_RIGHT);
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}
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int JudgeHitBulletBlock(int x, int y, BULLET *bul)
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{
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int i;
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int hit = 0;
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if (bul->x - bul->blockXL < ((x * 16) + 8) * 0x200
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&& bul->x + bul->blockXL > ((x * 16) - 8) * 0x200
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&& bul->y - bul->blockYL < ((y * 16) + 8) * 0x200
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&& bul->y + bul->blockYL > ((y * 16) - 8) * 0x200)
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hit |= 0x200;
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if (hit && bul->bbits & 0x60 && GetAttribute(x, y) == 0x43)
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{
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if (!(bul->bbits & 0x40))
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bul->cond = 0;
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SetCaret(bul->x, bul->y, CARET_PROJECTILE_DISSIPATION, DIR_LEFT);
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PlaySoundObject(12, SOUND_MODE_PLAY);
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for (i = 0; i < 4; ++i)
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SetNpChar(4, x * 0x200 * 0x10, y * 0x200 * 0x10, Random(-0x200, 0x200), Random(-0x200, 0x200), 0, NULL, 0x100);
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ShiftMapParts(gMirrorMode? x-1: x, y);
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}
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return hit;
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}
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int JudgeHitBulletBlock2(int x, int y, unsigned char *atrb, BULLET *bul)
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{
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BOOL block[4];
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int workX, workY;
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int hit, i;
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hit = 0;
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if (bul->bbits & 0x40)
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{
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for (i = 0; i < 4; ++i)
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{
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if (*atrb == 0x41 || *atrb == 0x61)
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block[i] = TRUE;
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else
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block[i] = FALSE;
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++atrb;
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}
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}
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else
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{
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for (i = 0; i < 4; ++i)
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{
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if (*atrb == 0x41 || *atrb == 0x43 || *atrb == 0x61)
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block[i] = TRUE;
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else
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block[i] = FALSE;
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++atrb;
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}
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}
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workX = ((x * 16) + 8) * 0x200;
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workY = ((y * 16) + 8) * 0x200;
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// Left wall
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if (block[0] && block[2])
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{
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if (bul->x - bul->blockXL < workX)
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hit |= 1;
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}
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else if (block[0] && !block[2])
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{
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if (bul->x - bul->blockXL < workX && bul->y - bul->blockYL < workY - (3 * 0x200))
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hit |= 1;
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}
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else if (!block[0] && block[2])
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{
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if (bul->x - bul->blockXL < workX && bul->y + bul->blockYL > workY + (3 * 0x200))
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hit |= 1;
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}
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// Right wall
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if (block[1] && block[3])
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{
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if (bul->x + bul->blockXL > workX)
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hit |= 4;
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}
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else if (block[1] && !block[3])
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{
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if (bul->x + bul->blockXL > workX && bul->y - bul->blockYL < workY - (3 * 0x200))
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hit |= 4;
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}
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else if (!block[1] && block[3])
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{
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if (bul->x + bul->blockXL > workX && bul->y + bul->blockYL > workY + (3 * 0x200))
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hit |= 4;
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}
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// Ceiling
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if (block[0] && block[1])
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{
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if (bul->y - bul->blockYL < workY)
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hit |= 2;
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}
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else if (block[0] && !block[1])
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{
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if (bul->y - bul->blockYL < workY && bul->x - bul->blockXL < workX - (3 * 0x200))
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hit |= 2;
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}
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else if (!block[0] && block[1])
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{
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if (bul->y - bul->blockYL < workY && bul->x + bul->blockXL > workX + (3 * 0x200))
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hit |= 2;
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}
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// Ground
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if (block[2] && block[3])
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{
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if (bul->y + bul->blockYL > workY)
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hit |= 8;
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}
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else if (block[2] && !block[3])
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{
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if (bul->y + bul->blockYL > workY && bul->x - bul->blockXL < workX - (3 * 0x200))
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hit |= 8;
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}
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else if (!block[2] && block[3])
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{
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if (bul->y + bul->blockYL > workY && bul->x + bul->blockXL > workX + (3 * 0x200))
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hit |= 8;
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}
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// Clip
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if (bul->bbits & 8)
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{
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if (hit & 1)
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bul->x = workX + bul->blockXL;
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else if (hit & 4)
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bul->x = workX - bul->blockXL;
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else if (hit & 2)
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bul->y = workY + bul->blockYL;
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else if (hit & 8)
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bul->y = workY - bul->blockYL;
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}
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else
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{
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if (hit & 0xF)
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Vanish(bul);
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}
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return hit;
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}
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int JudgeHitBulletTriangleA(int x, int y, BULLET *bul)
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{
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int hit = 0;
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if (bul->x < ((x * 16) + 8) * 0x200
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&& bul->x > ((x * 16) - 8) * 0x200
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&& bul->y - (2 * 0x200) < ((y * 16) * 0x200) - ((bul->x - ((x * 16) * 0x200)) / 2) + (4 * 0x200)
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&& bul->y + (2 * 0x200) > ((y * 16) - 8) * 0x200)
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{
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if (bul->bbits & 8)
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bul->y = ((y * 16) * 0x200) - ((bul->x - ((x * 16) * 0x200)) / 2) + (6 * 0x200);
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else
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Vanish(bul);
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hit |= 0x82;
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}
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return hit;
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}
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int JudgeHitBulletTriangleB(int x, int y, BULLET *bul)
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{
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int hit = 0;
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if (bul->x < ((x * 16) + 8) * 0x200
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&& bul->x > ((x * 16) - 8) * 0x200
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&& bul->y - (2 * 0x200) < ((y * 16) * 0x200) - ((bul->x - ((x * 16) * 0x200)) / 2) - (4 * 0x200)
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&& bul->y + (2 * 0x200) > ((y * 16) - 8) * 0x200)
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{
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if (bul->bbits & 8)
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bul->y = ((y * 16) * 0x200) - ((bul->x - ((x * 16) * 0x200)) / 2) - (2 * 0x200);
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else
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Vanish(bul);
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hit |= 0x82;
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}
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return hit;
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}
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int JudgeHitBulletTriangleC(int x, int y, BULLET *bul)
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{
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int hit = 0;
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if (bul->x < ((x * 16) + 8) * 0x200
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&& bul->x > ((x * 16) - 8) * 0x200
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&& bul->y - (2 * 0x200) < ((y * 16) * 0x200) + ((bul->x - ((x * 16) * 0x200)) / 2) - (4 * 0x200)
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&& bul->y + (2 * 0x200) > ((y * 16) - 8) * 0x200)
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{
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if (bul->bbits & 8)
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bul->y = ((y * 16) * 0x200) + ((bul->x - ((x * 16) * 0x200)) / 2) - (2 * 0x200);
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else
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Vanish(bul);
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hit |= 0x42;
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}
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return hit;
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}
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int JudgeHitBulletTriangleD(int x, int y, BULLET *bul)
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{
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int hit = 0;
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if (bul->x < ((x * 16) + 8) * 0x200
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&& bul->x > ((x * 16) - 8) * 0x200
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&& bul->y - (2 * 0x200) < ((y * 16) * 0x200) + ((bul->x - ((x * 16) * 0x200)) / 2) + (4 * 0x200)
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&& bul->y + (2 * 0x200) > ((y * 16) - 8) * 0x200)
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{
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if (bul->bbits & 8)
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bul->y = ((y * 16) * 0x200) + ((bul->x - ((x * 16) * 0x200)) / 2) + (6 * 0x200);
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else
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Vanish(bul);
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hit |= 0x42;
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}
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return hit;
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}
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int JudgeHitBulletTriangleE(int x, int y, BULLET *bul)
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{
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int hit = 0;
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if (bul->x < ((x * 16) + 8) * 0x200
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&& bul->x - (1 * 0x200) > ((x * 16) - 8) * 0x200
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&& bul->y + (2 * 0x200) > ((y * 16) * 0x200) + ((bul->x - ((x * 16) * 0x200)) / 2) - (4 * 0x200)
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&& bul->y - (2 * 0x200) < ((y * 16) + 8) * 0x200)
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{
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if (bul->bbits & 8)
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bul->y = ((y * 16) * 0x200) + ((bul->x - ((x * 16) * 0x200)) / 2) - (6 * 0x200);
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else
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Vanish(bul);
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hit |= 0x28;
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}
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return hit;
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}
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int JudgeHitBulletTriangleF(int x, int y, BULLET *bul)
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{
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int hit = 0;
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if (bul->x < ((x * 16) + 8) * 0x200
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&& bul->x > ((x * 16) - 8) * 0x200
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&& bul->y + (2 * 0x200) > ((y * 16) * 0x200) + ((bul->x - ((x * 16) * 0x200)) / 2) + (4 * 0x200)
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&& bul->y - (2 * 0x200) < ((y * 16) + 8) * 0x200)
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{
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if (bul->bbits & 8)
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bul->y = ((y * 16) * 0x200) + ((bul->x - ((x * 16) * 0x200)) / 2) + (2 * 0x200);
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else
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Vanish(bul);
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hit |= 0x28;
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}
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return hit;
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}
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int JudgeHitBulletTriangleG(int x, int y, BULLET *bul)
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{
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int hit = 0;
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if (bul->x < ((x * 16) + 8) * 0x200
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&& bul->x > ((x * 16) - 8) * 0x200
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&& bul->y + (2 * 0x200) > ((y * 16) * 0x200) - ((bul->x - ((x * 16) * 0x200)) / 2) + (4 * 0x200)
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&& bul->y - (2 * 0x200) < ((y * 16) + 8) * 0x200)
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{
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if (bul->bbits & 8)
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bul->y = ((y * 16) * 0x200) - ((bul->x - ((x * 16) * 0x200)) / 2) + (2 * 0x200);
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else
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Vanish(bul);
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hit |= 0x18;
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}
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return hit;
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}
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int JudgeHitBulletTriangleH(int x, int y, BULLET *bul)
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{
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int hit = 0;
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if (bul->x < ((x * 16) + 8) * 0x200
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&& bul->x > ((x * 16) - 8) * 0x200
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&& bul->y + (2 * 0x200) > ((y * 16) * 0x200) - ((bul->x - ((x * 16) * 0x200)) / 2) - (4 * 0x200)
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&& bul->y - (2 * 0x200) < ((y * 16) + 8) * 0x200)
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{
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if (bul->bbits & 8)
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bul->y = ((y * 16) * 0x200) - ((bul->x - ((x * 16) * 0x200)) / 2) - (6 * 0x200);
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else
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Vanish(bul);
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hit |= 0x18;
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}
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return hit;
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}
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void HitBulletMap(void)
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{
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int x, y;
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unsigned char atrb[4];
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int i, j;
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for (i = 0; i < BULLET_MAX; ++i)
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{
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int offx[4];
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int offy[4];
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if (!(gBul[i].cond & 0x80))
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continue;
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x = gBul[i].x / 0x10 / 0x200;
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y = gBul[i].y / 0x10 / 0x200;
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// Get surrounding tiles
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offx[0] = 0;
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offx[1] = 1;
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offx[2] = 0;
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offx[3] = 1;
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offy[0] = 0;
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offy[1] = 0;
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offy[2] = 1;
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offy[3] = 1;
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atrb[0] = GetAttribute(x, y);
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atrb[1] = GetAttribute(x + 1, y);
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atrb[2] = GetAttribute(x, y + 1);
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atrb[3] = GetAttribute(x + 1, y + 1);
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// Clear hit tiles
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gBul[i].flag = 0;
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if (gBul[i].bbits & 4)
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{
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// There probably used to be commented-out code here
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}
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else
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{
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for (j = 0; j < 4; ++j)
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{
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if (!(gBul[i].cond & 0x80))
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continue;
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switch (atrb[j])
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{
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case 0x41:
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case 0x43:
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case 0x44:
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case 0x61:
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case 0x64:
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gBul[i].flag |= JudgeHitBulletBlock(x + offx[j], y + offy[j], &gBul[i]);
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break;
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case 0x50:
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case 0x70:
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gBul[i].flag |= JudgeHitBulletTriangleA(x + offx[j], y + offy[j], &gBul[i]);
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break;
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case 0x51:
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case 0x71:
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gBul[i].flag |= JudgeHitBulletTriangleB(x + offx[j], y + offy[j], &gBul[i]);
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break;
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case 0x52:
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case 0x72:
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gBul[i].flag |= JudgeHitBulletTriangleC(x + offx[j], y + offy[j], &gBul[i]);
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break;
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case 0x53:
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case 0x73:
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gBul[i].flag |= JudgeHitBulletTriangleD(x + offx[j], y + offy[j], &gBul[i]);
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break;
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case 0x54:
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case 0x74:
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gBul[i].flag |= JudgeHitBulletTriangleE(x + offx[j], y + offy[j], &gBul[i]);
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break;
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case 0x55:
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case 0x75:
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gBul[i].flag |= JudgeHitBulletTriangleF(x + offx[j], y + offy[j], &gBul[i]);
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break;
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case 0x56:
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case 0x76:
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gBul[i].flag |= JudgeHitBulletTriangleG(x + offx[j], y + offy[j], &gBul[i]);
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break;
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case 0x57:
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case 0x77:
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gBul[i].flag |= JudgeHitBulletTriangleH(x + offx[j], y + offy[j], &gBul[i]);
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break;
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}
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}
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gBul[i].flag |= JudgeHitBulletBlock2(x, y, atrb, &gBul[i]);
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}
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}
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}
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