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Merge pull request #2155 from kmdreko/decompile_637ff3

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Decompiled sub_6E7FF3
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Ted John
2015-10-29 18:31:19 +00:00
parent 6e2962f3e4 115c099e2a
commit f1931c2cc4
1 changed files with 125 additions and 32 deletions
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157
src/interface/viewport.c
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@@ -270,40 +270,133 @@ void sub_689174(sint16* x, sint16* y, sint16 *z)
*z = height;
}
void sub_6E7FF3(rct_window *w, rct_viewport *viewport, int x, int y)
// ax = viewport->x
// bx = viewport->y;
// cx = viewport->width;
// dx = viewport->height;
// di = dx;
// si = dy;
void sub_683359(int x, int y, int width, int height, int dx, int dy)
{
RCT2_CALLPROC_X(0x006E7FF3, 0, 0, 0, x, (int)viewport, (int)w, y);
RCT2_CALLPROC_X(0x00683359, x, y, width, height, dy, dx, 0);
}
// int zoom = 1 << viewport->zoom;
// if (w >= RCT2_GLOBAL(RCT2_ADDRESS_NEW_WINDOW_PTR, rct_window*)){
// if (viewport != w->viewport){
// if ((viewport->x + viewport->width > w->x) &&
// (w->x + w->width > viewport->x) &&
// (viewport->y + viewport->height > w->y) &&
// (w->y + w->height > viewport->y)){
// if (viewport->x < w->x){
// rct_viewport viewport_bkup;
// memcpy(&viewport_bkup, viewport, sizeof(rct_viewport));
//
// viewport->width = w->x - viewport->x;
// viewport->view_width = (w->x - viewport->x) * zoom;
//
// sub_6E7FF3(w, viewport, x, y);
//
// viewport->x += viewport->width;
// viewport->view_x += viewport->width*zoom;
// viewport->view_width = (viewport_bkup.width - viewport->width) * zoom;
// viewport->width = viewport_bkup.width - viewport->width;
//
// sub_6E7FF3(w, viewport, x, y);
//
// memcpy(viewport, &viewport_bkup, sizeof(rct_viewport));
// return;
// }//x6E80C4
// }//0x6E824a
// } // 0x6e824a
// }//x6e8255
//
void sub_6E7FF3(rct_window *window, rct_viewport *viewport, int x, int y)
{
// sub-divide by intersecting windows
if (window < RCT2_GLOBAL(RCT2_ADDRESS_NEW_WINDOW_PTR, rct_window*))
{
// skip current window and non-intersecting windows
if (viewport == window->viewport ||
viewport->x + viewport->width <= window->x ||
viewport->x >= window->x + window->width ||
viewport->y + viewport->height <= window->y ||
viewport->y >= window->y + window->height)
return sub_6E7FF3(window + 1, viewport, x, y);
// save viewport
rct_viewport view_copy;
memcpy(&view_copy, viewport, sizeof(rct_viewport));
if (viewport->x < window->x)
{
viewport->width = window->x - viewport->x;
viewport->view_width = viewport->width << viewport->zoom;
sub_6E7FF3(window, viewport, x, y);
viewport->x += viewport->width;
viewport->view_x += viewport->width << viewport->zoom;
viewport->width = view_copy.width - viewport->width;
viewport->view_width = viewport->width << viewport->zoom;
sub_6E7FF3(window, viewport, x, y);
}
else if (viewport->x + viewport->width > window->x + window->width)
{
viewport->width = window->x + window->width - viewport->x;
viewport->view_width = viewport->width << viewport->zoom;
sub_6E7FF3(window, viewport, x, y);
viewport->x += viewport->width;
viewport->view_x += viewport->width << viewport->zoom;
viewport->width = view_copy.width - viewport->width;
viewport->view_width = viewport->width << viewport->zoom;
sub_6E7FF3(window, viewport, x, y);
}
else if (viewport->y < window->y)
{
viewport->height = window->y - viewport->y;
viewport->view_width = viewport->width << viewport->zoom;
sub_6E7FF3(window, viewport, x, y);
viewport->y += viewport->height;
viewport->view_y += viewport->height << viewport->zoom;
viewport->height = view_copy.height - viewport->height;
viewport->view_width = viewport->width << viewport->zoom;
sub_6E7FF3(window, viewport, x, y);
}
else if (viewport->y + viewport->height > window->y + window->height)
{
viewport->height = window->y + window->height - viewport->y;
viewport->view_width = viewport->width << viewport->zoom;
sub_6E7FF3(window, viewport, x, y);
viewport->y += viewport->height;
viewport->view_y += viewport->height << viewport->zoom;
viewport->height = view_copy.height - viewport->height;
viewport->view_width = viewport->width << viewport->zoom;
sub_6E7FF3(window, viewport, x, y);
}
// restore viewport
memcpy(viewport, &view_copy, sizeof(rct_viewport));
}
else
{
sint16 left = viewport->x;
sint16 right = viewport->x + viewport->width;
sint16 top = viewport->y;
sint16 bottom = viewport->y + viewport->height;
// if moved more than the viewport size
if (abs(x) < viewport->width && abs(y) < viewport->height)
{
// update whole block ?
sub_683359(viewport->x, viewport->y, viewport->width, viewport->height, x, y);
if (x > 0)
{
// draw left
sint16 _right = viewport->x + x;
gfx_redraw_screen_rect(left, top, _right, bottom);
left += x;
}
else if (x < 0)
{
// draw right
sint16 _left = viewport->x + viewport->width + x;
gfx_redraw_screen_rect(_left, top, right, bottom);
right += x;
}
if (y > 0)
{
// draw top
bottom = viewport->y + y;
gfx_redraw_screen_rect(left, top, right, bottom);
}
else if (y < 0)
{
// draw bottom
top = viewport->y + viewport->height + y;
gfx_redraw_screen_rect(left, top, right, bottom);
}
}
else
{
// redraw whole viewport
gfx_redraw_screen_rect(left, top, right, bottom);
}
}
}
void sub_6E7F34(rct_window* w, rct_viewport* viewport, sint16 x_diff, sint16 y_diff){