ref: 9aa97205b7657c4dd9fea29888a9ae26814372ed
dir: /src/Back.cpp/
#include "Back.h"
#include <stddef.h>
#include <stdio.h>
#include "WindowsWrapper.h"
#include "CommonDefines.h"
#include "Draw.h"
#include "Frame.h"
#include "Game.h"
#include "Map.h"
#include "Stage.h"
#include "Tags.h"
BACK gBack;
int gWaterY;
static unsigned long color_black;
// TODO - Another function that has an incorrect stack frame
BOOL InitBack(const char *fName, int type)
{
// Unused, hilariously
color_black = GetCortBoxColor(RGB(0, 0, 0x10));
// Get width and height
char path[MAX_PATH];
sprintf(path, "%s\\%s.pbm", gDataPath, fName);
FILE *fp = fopen(path, "rb");
if (fp == NULL)
return FALSE;
// This is ridiculously platform-dependant:
// It should break on big-endian CPUs, and platforms where short isn't 16-bit and long isn't 32-bit.
unsigned short bmp_header_buffer[7]; // These names aren't the original. This ruins the stack frame layout.
unsigned long bmp_header_buffer2[10];
fread(bmp_header_buffer, 14, 1, fp);
// Check if this is a valid bitmap file
if (bmp_header_buffer[0] != 0x4D42) // 'MB' (we use hex to prevent a compiler warning)
{
#ifdef FIX_BUGS
// The original game forgets to close fp
fclose(fp);
#endif
return FALSE;
}
fread(bmp_header_buffer2, 40, 1, fp);
fclose(fp);
gBack.partsW = bmp_header_buffer2[1];
gBack.partsH = bmp_header_buffer2[2];
// Set background stuff and load texture
gBack.flag = 1;
if (!ReloadBitmap_File(fName, SURFACE_ID_LEVEL_BACKGROUND))
return FALSE;
gBack.type = type;
gWaterY = 0x1E0000;
return TRUE;
}
void ActBack()
{
switch (gBack.type)
{
case 5:
gBack.fx += 0xC00;
break;
case 6:
case 7:
++gBack.fx;
gBack.fx %= 640;
break;
}
}
void PutBack(int fx, int fy)
{
int x;
int y;
RECT rect = {0, 0, gBack.partsW, gBack.partsH};
switch (gBack.type)
{
case 0:
for (y = 0; y < WINDOW_HEIGHT; y += gBack.partsH)
for (x = 0; x < WINDOW_WIDTH; x += gBack.partsW)
PutBitmap4(&grcGame, x, y, &rect, SURFACE_ID_LEVEL_BACKGROUND);
break;
case 1:
for (y = -(fy / 2 / 0x200 % gBack.partsH); y < WINDOW_HEIGHT; y += gBack.partsH)
for (x = -(fx / 2 / 0x200 % gBack.partsW); x < WINDOW_WIDTH; x += gBack.partsW)
PutBitmap4(&grcGame, x, y, &rect, SURFACE_ID_LEVEL_BACKGROUND);
break;
case 2:
for (y = -(fy / 0x200 % gBack.partsH); y < WINDOW_HEIGHT; y += gBack.partsH)
for (x = -(fx / 0x200 % gBack.partsW); x < WINDOW_WIDTH; x += gBack.partsW)
PutBitmap4(&grcGame, x, y, &rect, SURFACE_ID_LEVEL_BACKGROUND);
break;
case 5:
for (y = -gBack.partsH; y < WINDOW_HEIGHT; y += gBack.partsH)
for (x = -(gBack.fx / 0x200 % gBack.partsW); x < WINDOW_WIDTH; x += gBack.partsW)
PutBitmap4(&grcGame, x, y, &rect, SURFACE_ID_LEVEL_BACKGROUND);
break;
case 6:
case 7:
rect.top = 0;
rect.bottom = 88;
rect.left = 0;
rect.right = 320;
PutBitmap4(&grcGame, 0, 0, &rect, SURFACE_ID_LEVEL_BACKGROUND);
rect.top = 88;
rect.bottom = 123;
rect.left = gBack.fx / 2;
rect.right = 320;
PutBitmap4(&grcGame, 0, 88, &rect, SURFACE_ID_LEVEL_BACKGROUND);
rect.left = 0;
PutBitmap4(&grcGame, 320 - gBack.fx / 2 % 320, 88, &rect, SURFACE_ID_LEVEL_BACKGROUND);
rect.top = 123;
rect.bottom = 146;
rect.left = gBack.fx % 320;
rect.right = 320;
PutBitmap4(&grcGame, 0, 123, &rect, SURFACE_ID_LEVEL_BACKGROUND);
rect.left = 0;
PutBitmap4(&grcGame, 320 - gBack.fx % 320, 123, &rect, SURFACE_ID_LEVEL_BACKGROUND);
rect.top = 146;
rect.bottom = 176;
rect.left = 2 * gBack.fx % 320;
rect.right = 320;
PutBitmap4(&grcGame, 0, 146, &rect, SURFACE_ID_LEVEL_BACKGROUND);
rect.left = 0;
PutBitmap4(&grcGame, 320 - 2 * gBack.fx % 320, 146, &rect, SURFACE_ID_LEVEL_BACKGROUND);
rect.top = 176;
rect.bottom = 240;
rect.left = 4 * gBack.fx % 320;
rect.right = 320;
PutBitmap4(&grcGame, 0, 176, &rect, SURFACE_ID_LEVEL_BACKGROUND);
rect.left = 0;
PutBitmap4(&grcGame, 320 - 4 * gBack.fx % 320, 176, &rect, SURFACE_ID_LEVEL_BACKGROUND);
break;
default:
return;
}
}
void PutFront(int fx, int fy)
{
int x;
int y;
int xpos;
int ypos;
int x_1;
int x_2;
int y_1;
int y_2;
RECT rcWater[2] = {{0, 0, 32, 16}, {0, 16, 32, 48}};
switch (gBack.type)
{
case 3:
x_1 = fx / 0x4000;
x_2 = x_1 + (((WINDOW_WIDTH + 31) >> 5) + 1);
y_1 = 0;
y_2 = y_1 + 32;
for (y = y_1; y < y_2; y++)
{
ypos = (y * 0x20 * 0x200) / 0x200 - fy / 0x200 + gWaterY / 0x200;
if (ypos < -32)
continue;
if (ypos > WINDOW_HEIGHT)
break;
for (x = x_1; x < x_2; x++)
{
xpos = (x * 0x20 * 0x200) / 0x200 - fx / 0x200;
PutBitmap3(&grcGame, xpos, ypos, &rcWater[1], SURFACE_ID_LEVEL_BACKGROUND);
if (!y)
PutBitmap3(&grcGame, xpos, ypos, &rcWater[0], SURFACE_ID_LEVEL_BACKGROUND);
}
}
}
/*
// Draw black bars
if (!(g_GameFlags & 8)) // Detect if credits are running
{
const BOOL fromFocus = (gStageNo == 31); // Get if we should only draw around a 320x240 area of the focus point
// Get focus rect
int focusX = gFrame.x + (WINDOW_WIDTH << 8) - (320 << 8);
int focusY = gFrame.y + (WINDOW_HEIGHT << 8) - (240 << 8);
int focusR = focusX + (320 << 9);
int focusB = focusY + (240 << 9);
// Get borders
const int barLeft = fromFocus ? focusX : -0x1000;
const int barTop = fromFocus ? focusY : -0x1000;
const int barRight = fromFocus ? focusR : (gMap.width << 13) - 0x1000;
const int barBottom = fromFocus ? focusB : (gMap.length << 13) - 0x1000;
// Draw bars
RECT barRect;
// Left
barRect.left = 0;
barRect.top = 0;
barRect.right = (barLeft - gFrame.x) >> 9;
barRect.bottom = WINDOW_HEIGHT;
CortBox(&barRect, 0x000000);
// Top
barRect.left = 0;
barRect.top = 0;
barRect.right = WINDOW_WIDTH;
barRect.bottom = (barTop - gFrame.y) >> 9;
CortBox(&barRect, 0x000000);
// Right
barRect.left = (barRight - gFrame.x) >> 9;
barRect.top = 0;
barRect.right = WINDOW_WIDTH;
barRect.bottom = WINDOW_HEIGHT;
CortBox(&barRect, 0x000000);
// Bottom
barRect.left = 0;
barRect.top = (barBottom - gFrame.y) >> 9;
barRect.right = WINDOW_WIDTH;
barRect.bottom = WINDOW_HEIGHT;
CortBox(&barRect, 0x000000);
}
*/
}