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WIP: zoom towards cursor rather than centre.

This commit is contained in:
Aaron van Geffen 2016-07-21 16:06:43 +02:00
parent 19220cbbce
commit 38b59b6c31
1 changed files with 19 additions and 3 deletions
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16
src/interface/window.c
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@ -1445,6 +1445,13 @@ void window_rotate_camera(rct_window *w, int direction)
reset_all_sprite_quadrant_placements();
}
void window_viewport_get_map_coords_by_cursor(rct_window *w, sint16 *map_x, sint16 *map_y)
{
int mouse_x, mouse_y;
platform_get_cursor_position(&mouse_x, &mouse_y);
get_map_coordinates_from_pos(mouse_x, mouse_y, VIEWPORT_INTERACTION_MASK_NONE, map_x, map_y, NULL, NULL, NULL);
}
void window_zoom_set(rct_window *w, int zoomLevel)
{
rct_viewport* v = w->viewport;
@ -1453,6 +1460,9 @@ void window_zoom_set(rct_window *w, int zoomLevel)
if (v->zoom == zoomLevel)
return;
sint16 saved_map_x, saved_map_y;
window_viewport_get_map_coords_by_cursor(w, &saved_map_x, &saved_map_y);
// Zoom in
while (v->zoom > zoomLevel) {
v->zoom--;
@ -1471,6 +1481,12 @@ void window_zoom_set(rct_window *w, int zoomLevel)
v->view_height *= 2;
}
int dest_x, dest_y;
center_2d_coordinates(saved_map_x, saved_map_y, 14, &dest_x, &dest_y, v);
w->saved_view_x = dest_x;
w->saved_view_y = dest_y;
// HACK: Prevents the redraw from failing when there is
// a window on top of the viewport.
window_bring_to_front(w);