shithub: cstory

ref: 770f3be74eeade974b9c5ccc36b85eaa8f02bf79
dir: /src/Caret.cpp/

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#include "Caret.h"

#include <string.h>

#include "WindowsWrapper.h"

#include "Draw.h"
#include "Game.h"
#include "Triangle.h"

CARET gCrt[CARET_MAX];

CARET_TABLE gCaretTable[18] = {
	{0, 0},
	{0x800, 0x800},
	{0x1000, 0x1000},
	{0x1000, 0x1000},
	{0x1000, 0x1000},
	{0x800, 0x800},
	{0x1000, 0x1000},
	{0x800, 0x800},
	{0x1000, 0x1000},
	{0x1000, 0x1000},
	{0x3800, 0x1000},
	{0x800, 0x800},
	{0x2000, 0x2000},
	{0x800, 0x800},
	{0x2800, 0x2800},
	{0x800, 0x800},
	{0x2800, 0x800},
	{0x6800, 0x800}
};

void InitCaret(void)
{
	memset(gCrt, 0, sizeof(gCrt));
}

void ActCaret00(CARET *crt)
{
	(void)crt;
}

void ActCaret01(CARET *crt)
{
	RECT rcLeft[4] = {
		{0, 64, 8, 72},
		{8, 64, 16, 72},
		{16, 64, 24, 72},
		{24, 64, 32, 72},
	};

	RECT rcRight[4] = {
		{64, 24, 72, 32},
		{72, 24, 80, 32},
		{80, 24, 88, 32},
		{88, 24, 96, 32},
	};

	if (crt->act_no == 0)
	{
		crt->act_no = 1;
		crt->xm = Random(-0x400, 0x400);
		crt->ym = Random(-0x400, 0);
	}

	crt->ym += 0x40;
	crt->x += crt->xm;
	crt->y += crt->ym;

	if (++crt->ani_wait > 5)
	{
		crt->ani_wait = 0;
		if (++crt->ani_no > 3)
		{
			crt->cond = 0;
			return;	// Prevent UB at rc[crt->ani_no] when crt->ani_no == 4
		}
	}

	if (crt->direct == 0)
		crt->rect = rcLeft[crt->ani_no];
	else
		crt->rect = rcRight[crt->ani_no];
}

void ActCaret02(CARET *crt)
{
	RECT rect_left[4] = {
		{0, 32, 16, 48},
		{16, 32, 32, 48},
		{32, 32, 48, 48},
		{48, 32, 64, 48},
	};

	RECT rect_right[4] = {
		{176, 0, 192, 16},
		{192, 0, 208, 16},
		{208, 0, 224, 16},
		{224, 0, 240, 16},
	};

	RECT rect_up[3] = {
		{0, 32, 16, 48},
		{32, 32, 48, 48},
		{16, 32, 32, 48},
	};

	switch (crt->direct)
	{
		case 0:
			crt->ym -= 0x10;
			crt->y += crt->ym;

			if (++crt->ani_wait > 5)
			{
				crt->ani_wait = 0;
				++crt->ani_no;
			}

			if (crt->ani_no > 3)
			{
				crt->cond = 0;
				return;	// Avoid unconditional UB at rect_left[crt->ani_no]
			}

			crt->rect = rect_left[crt->ani_no];
			break;

		case 2:
			if (++crt->ani_wait > 2)
			{
				crt->ani_wait = 0;
				++crt->ani_no;
			}

			if (crt->ani_no > 3)
			{
				crt->cond = 0;
				return;	// Avoid unconditional UB at rect_right[crt->ani_no]
			}

			crt->rect = rect_right[crt->ani_no];
			break;

		case 1:
			crt->rect = rect_up[++crt->ani_wait / 2 % 3];

			if (crt->ani_wait > 24)
				crt->cond = 0;

			break;
	}
}

void ActCaret03(CARET *crt)
{
	RECT rect[4] = {
		{0, 48, 16, 64},
		{16, 48, 32, 64},
		{32, 48, 48, 64},
		{48, 48, 64, 64},
	};

	if (++crt->ani_wait > 2)
	{
		crt->ani_wait = 0;
		if (++crt->ani_no > 3)
		{
			crt->cond = 0;
			return;	// Return now, or the access to rect[crt->ani_no] we do is UB
		}
	}

	crt->rect = rect[crt->ani_no];
}

void ActCaret04(CARET *crt)
{
	RECT rect[9] = {
		{64, 32, 80, 48},
		{80, 32, 96, 48},
		{96, 32, 112, 48},
		{64, 48, 80, 64},
		{80, 48, 96, 64},
		{96, 48, 112, 64},
		{64, 64, 80, 80},
		{80, 64, 96, 80},
		{96, 64, 112, 80},
	};

	if (++crt->ani_wait > 1)
	{
		crt->ani_wait = 0;

		if (++crt->ani_no > 2)
			crt->cond = 0;
	}

	crt->rect = rect[(crt->direct * 3) + crt->ani_no];
}

void ActCaret05(CARET *crt)
{
	RECT rect[7] = {
		{32, 64, 40, 72},
		{32, 72, 40, 80},
		{40, 64, 48, 72},
		{40, 72, 48, 80},
		{40, 64, 48, 72},
		{40, 72, 48, 80},
		{40, 64, 48, 72},
	};

	if (++crt->ani_wait > 4)
	{
		crt->ani_wait = 0;
		++crt->ani_no;
	}

	crt->x += 0x80;
	crt->y -= 0x80;

	if (crt->ani_no > 6)
	{
		crt->cond = 0;
		return;	// Return now, or the access to rect[crt->ani_no] we do is UB
	}

	crt->rect = rect[crt->ani_no];
}

void ActCaret07(CARET *crt)
{
	RECT rcLeft[7] = {
		{56, 0, 64, 8},
		{64, 0, 72, 8},
		{72, 0, 80, 8},
		{80, 0, 88, 8},
		{88, 0, 96, 8},
		{96, 0, 104, 8},
		{104, 0, 112, 8},
	};

	if (++crt->ani_wait > 1)
	{
		crt->ani_wait = 0;

		if (++crt->ani_no > 6)
		{
			crt->cond = 0;
			return;	// Prevent UB at rcLeft[crt->ani_no] when crt->ani_no == 6
		}
	}

	crt->rect = rcLeft[crt->ani_no];

	switch (crt->direct)
	{
		case 0:
			crt->x -= 2 * 0x200;
			break;
		case 1:
			crt->y -= 2 * 0x200;
			break;
		case 2:
			crt->x += 2 * 0x200;
			break;
		case 3:
			crt->y += 2 * 0x200;
			break;
	}
}

void ActCaret08(CARET *crt)
{
	RECT rcLeft = {16, 80, 32, 96};
	RECT rcRight = {32, 80, 48, 96};

	if (crt->direct == 0)
		crt->rect = rcLeft;
	else
		crt->rect = rcRight;
}

void ActCaret09(CARET *crt)
{
	RECT rcLeft = {0, 80, 16, 96};
	RECT rcRight = {48, 64, 64, 80};

	if (++crt->ani_wait < 5)
		crt->y -= 0x800;

	if (crt->ani_wait == 32)
		crt->cond = 0;

	if (crt->direct == 0)
		crt->rect = rcLeft;
	else
		crt->rect = rcRight;
}

void ActCaret10(CARET *crt)
{
	RECT rcLeft[2] = {
		{0, 0, 56, 16},
		{0, 16, 56, 32},
	};

	RECT rcRight[2] = {
		{0, 96, 56, 112},
		{0, 112, 56, 128},
	};

	++crt->ani_wait;

	if (crt->direct == 0)
	{
		if (crt->ani_wait < 20)
			crt->y -= 2 * 0x200;

		if (crt->ani_wait == 80)
			crt->cond = 0;
	}
	else
	{
		if (crt->ani_wait < 20)
			crt->y -= 1 * 0x200;

		if (crt->ani_wait == 80)
			crt->cond = 0;
	}

	if (crt->direct == 0)
		crt->rect = rcLeft[crt->ani_wait / 2 % 2];
	else
		crt->rect = rcRight[crt->ani_wait / 2 % 2];
}

void ActCaret11(CARET *crt)
{
	unsigned char deg;

	if (crt->act_no == 0)
	{
		crt->act_no = 1;
		deg = Random(0, 0xFF);
		crt->xm = GetCos(deg) * 2;
		crt->ym = GetSin(deg) * 2;
	}

	crt->x += crt->xm;
	crt->y += crt->ym;

	RECT rcRight[7] = {
		{56, 8, 64, 16},
		{64, 8, 72, 16},
		{72, 8, 80, 16},
		{80, 8, 88, 16},
		{88, 8, 96, 16},
		{96, 8, 104, 16},
		{104, 8, 112, 16},
	};

	if (++crt->ani_wait > 2)
	{
		crt->ani_wait = 0;
		if (++crt->ani_no > 6)
		{
			crt->cond = 0;
			return;	// Avoid unconditional UB at rcRight[crt->ani_no]
		}
	}

	crt->rect = rcRight[crt->ani_no];
}

void ActCaret12(CARET *crt)
{
	RECT rcLeft[2] = {
		{112, 0, 144, 32},
		{144, 0, 176, 32},
	};

	if (++crt->ani_wait > 2)
	{
		crt->ani_wait = 0;
		if (++crt->ani_no > 1)
		{
			crt->cond = 0;
			return;	// Return now, or the access to rcLeft[crt->ani_no] we do is UB
		}
	}

	crt->rect = rcLeft[crt->ani_no];
}

void ActCaret13(CARET *crt)
{
	RECT rcLeft[2] = {
		{56, 24, 64, 32},
		{0, 0, 0, 0},
	};

	if (crt->act_no == 0)
	{
		crt->act_no = 1;

		switch (crt->direct)
		{
			case 0:
				crt->xm = Random(-0x600, 0x600);
				crt->ym = Random(-0x200, 0x200);
				break;

			case 1:
				crt->ym = -0x200 * Random(1, 3);
				break;
		}
	}

	switch (crt->direct)
	{
		case 0:
			crt->xm = (crt->xm * 4) / 5;
			crt->ym = (crt->ym * 4) / 5;
			break;
	}

	crt->x += crt->xm;
	crt->y += crt->ym;

	if (++crt->ani_wait > 20)
		crt->cond = 0;

	crt->rect = rcLeft[crt->ani_wait / 2 % 2];

	if (crt->direct == 5)
		crt->x -= 4 * 0x200;
}

void ActCaret14(CARET *crt)
{
	RECT rect[5] = {
		{0, 96, 40, 136},
		{40, 96, 80, 136},
		{80, 96, 120, 136},
		{120, 96, 160, 136},
		{160, 96, 200, 136},
	};

	if (++crt->ani_wait > 1)
	{
		crt->ani_wait = 0;

		if (++crt->ani_no > 4)
		{
			crt->cond = 0;
			return;	// Prevent UB at rect[crt->ani_no] when crt->ani_no == 5
		}
	}

	crt->rect = rect[crt->ani_no];
}

void ActCaret15(CARET *crt)
{
	RECT rcLeft[4] = {
		{0, 72, 8, 80},
		{8, 72, 16, 80},
		{16, 72, 24, 80},
		{24, 72, 32, 80},
	};

	if (++crt->ani_wait > 2)
	{
		crt->ani_wait = 0;

		if (++crt->ani_no > 3)
		{
			crt->cond = 0;
			return;	// Prevent UB at rcLeft[crt->ani_no] when crt->ani_no == 4
		}
	}

	crt->rect = rcLeft[crt->ani_no];
}

void ActCaret16(CARET *crt)
{
	RECT rcLeft[2] = {
		{104, 96, 144, 104},
		{104, 104, 144, 112},
	};

	if (++crt->ani_wait < 10)
		crt->y -= 2 * 0x200;

	if (crt->ani_wait == 40)
		crt->cond = 0;

	crt->rect = rcLeft[crt->ani_wait / 2 % 2];
}

void ActCaret17(CARET *crt)
{
	RECT rcLeft[2] = {
		{0, 144, 144, 152},
		{0, 0, 0, 0},
	};

	if (++crt->ani_wait >= 40)
		crt->ani_wait = 0;

	if (crt->ani_wait < 30)
		crt->rect = rcLeft[0];
	else
		crt->rect = rcLeft[1];
}

typedef void (*CARETFUNCTION)(CARET*);
CARETFUNCTION gpCaretFuncTbl[18] =
{
	ActCaret00,
	ActCaret01,
	ActCaret02,
	ActCaret03,
	ActCaret04,
	ActCaret05,
	ActCaret04,
	ActCaret07,
	ActCaret08,
	ActCaret09,
	ActCaret10,
	ActCaret11,
	ActCaret12,
	ActCaret13,
	ActCaret14,
	ActCaret15,
	ActCaret16,
	ActCaret17,
};

void ActCaret(void)
{
	int i;
	int code;

	for (i = 0; i < CARET_MAX; ++i)
	{
		if (gCrt[i].cond & 0x80)
		{
			code = gCrt[i].code;
			gpCaretFuncTbl[code](&gCrt[i]);
		}
	}
}

void PutCaret(int fx, int fy)
{
	int i;

	for (i = 0; i < CARET_MAX; ++i)
	{
		if (gCrt[i].cond & 0x80)
		{
			PutBitmap3(
				&grcGame,
				((gCrt[i].x - gCrt[i].view_left) / 0x200) - (fx / 0x200),
				((gCrt[i].y - gCrt[i].view_top) / 0x200) - (fy / 0x200),
				&gCrt[i].rect,
				SURFACE_ID_CARET);
		}
	}
}

void SetCaret(int x, int y, int code, int dir)
{
	int c;
	for (c = 0; c < CARET_MAX; ++c)
		if (gCrt[c].cond == 0)
			break;

	if (c == CARET_MAX)
		return;

	memset(&gCrt[c], 0, sizeof(CARET));
	gCrt[c].cond = 0x80;
	gCrt[c].code = code;
	gCrt[c].x = x;
	gCrt[c].y = y;
	gCrt[c].view_left = gCaretTable[code].view_left;
	gCrt[c].view_top = gCaretTable[code].view_top;
	gCrt[c].direct = dir;
}