/**
*
* rct2: 0x006EB009
* x: ax
* y: eax (top 16)
* width: bx
* height: ebx (top 16)
* zoom: cl (8 bits)
* center_x: edx lower 16 bits
* center_y: edx upper 16 bits
* center_z: ecx upper 16 bits
* sprite: edx lower 16 bits
* flags: edx top most 2 bits 0b_X1 for zoom clear see below for 2nd bit.
* w: esi
*
* Viewport will look at sprite or at coordinates as specified in flags 0b_1X for sprite 0b_0X for coordinates
*/
void viewport_create(rct_window *w, int x, int y, int width, int height, int zoom, int center_x, int center_y, int center_z, char flags, sint16 sprite)
{
rct_viewport* viewport;
for (viewport = g_viewport_list; viewport->width != 0; viewport++){
if (viewport >= RCT2_ADDRESS(RCT2_ADDRESS_NEW_VIEWPORT_PTR, rct_viewport)){
error_string_quit(0xFF000001, -1);
}
}
viewport->x = x;
viewport->y = y;
viewport->width = width;
viewport->height = height;
if (!(flags & VIEWPORT_FOCUS_TYPE_COORDINATE)){
zoom = 0;
}
viewport->view_width = width << zoom;
viewport->view_height = height << zoom;
viewport->zoom = zoom;
viewport->flags = 0;
if (RCT2_GLOBAL(RCT2_ADDRESS_CONFIG_KEYBOARD_SHORTCUTS, uint8) & 1){
viewport->flags |= VIEWPORT_FLAG_GRIDLINES;
}
w->viewport = viewport;
if (flags & VIEWPORT_FOCUS_TYPE_SPRITE){
w->viewport_target_sprite = sprite;
rct_sprite* center_sprite = &g_sprite_list[sprite];
center_x = center_sprite->unknown.x;
center_y = center_sprite->unknown.y;
center_z = center_sprite->unknown.z;
}
else{
w->viewport_target_sprite = SPR_NONE;
}
int view_x, view_y;
center_2d_coordinates(center_x, center_y, center_z, &view_x, &view_y, viewport);
w->saved_view_x = view_x;
w->saved_view_y = view_y;
viewport->view_x = view_x;
viewport->view_y = view_y;
viewport_update_pointers();
//x &= 0xFFFF;
//y &= 0xFFFF;
//RCT2_CALLPROC_X(0x006EB009, (y << 16) | x, (height << 16) | width, zoom, edx, (int)w, 0, 0);
}
static void window_player_update_viewport(rct_window *w, bool scroll)
{
int playerIndex = network_get_player_index((uint8)w->number);
if (playerIndex == -1) {
return;
}
rct_viewport *viewport = w->viewport;
if (viewport != NULL) {
rct_xyz16 coord = network_get_player_last_action_coord(playerIndex);
if (coord.x != 0 || coord.y != 0 || coord.z != 0) {
int viewX, viewY;
center_2d_coordinates(coord.x, coord.y, coord.z, &viewX, &viewY, viewport);
// Don't scroll if the view was originally undefined
if (w->var_492 == -1) {
scroll = false;
}
if (!scroll || w->saved_view_x != viewX || w->saved_view_y != viewY) {
w->flags |= WF_SCROLLING_TO_LOCATION;
w->saved_view_x = viewX;
w->saved_view_y = viewY;
if (!scroll) {
w->viewport->view_x = viewX;
w->viewport->view_y = viewY;
}
widget_invalidate(w, WIDX_VIEWPORT);
}
// Draw the viewport
w->var_492 = 0;
} else {
// Don't draw the viewport
w->var_492 = -1;
}
}
}
/**
*
* rct2: 0x006E7A3A
*/
void viewport_update_position(rct_window *window)
{
//RCT2_CALLPROC_X(0x006E7A3A, 0, 0, 0, 0, (int)window, 0, 0);
RCT2_CALLPROC_X(window->event_handlers[WE_RESIZE], 0, 0, 0, 0, (int)window, 0, 0);
rct_viewport* viewport = window->viewport;
if (!viewport)return;
if (window->viewport_target_sprite != -1){
rct_sprite* sprite = &g_sprite_list[window->viewport_target_sprite];
int height = map_element_height(sprite->unknown.x, sprite->unknown.y) - 16;
int underground = sprite->unknown.z < height;
RCT2_CALLPROC_X(0x6E7A15, sprite->unknown.x, sprite->unknown.y, sprite->unknown.z, underground, (int)window, (int)viewport, 0);
int center_x, center_y;
center_2d_coordinates(sprite->unknown.x, sprite->unknown.y, sprite->unknown.z, ¢er_x, ¢er_y, window->viewport);
RCT2_CALLPROC_X(0x6E7DE1, center_x, center_y, 0, 0, (int)window, (int)viewport, 0);
window_invalidate(window);//Added to force a redraw.
return;
}
sint16 x = viewport->view_width / 2 + window->saved_view_x;
sint16 y = viewport->view_height / 2 + window->saved_view_y;
int curr_rotation = RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_ROTATION, uint32);
sub_689174(&x, &y, curr_rotation);
RCT2_CALLPROC_X(0x006E7A15, x, y, 0, 0, (int)window, (int)viewport, 0);
//Clamp to the map minimum value
int at_map_edge = 0;
if (x < MAP_MINIMUM_X_Y){
x = MAP_MINIMUM_X_Y;
at_map_edge = 1;
}
if (y < MAP_MINIMUM_X_Y){
y = MAP_MINIMUM_X_Y;
at_map_edge = 1;
}
//Clamp to the map maximum value (scenario specific)
if (x > RCT2_GLOBAL(RCT2_ADDRESS_MAP_MAXIMUM_X_Y, sint16)){
x = RCT2_GLOBAL(RCT2_ADDRESS_MAP_MAXIMUM_X_Y, sint16);
at_map_edge = 1;
}
if (y > RCT2_GLOBAL(RCT2_ADDRESS_MAP_MAXIMUM_X_Y, sint16)){
y = RCT2_GLOBAL(RCT2_ADDRESS_MAP_MAXIMUM_X_Y, sint16);
at_map_edge = 1;
}
if (at_map_edge) {
// The &0xFFFF is to prevent the sign extension messing the
// function up.
int z = map_element_height(x & 0xFFFF, y & 0xFFFF);
int _2d_x, _2d_y;
center_2d_coordinates(x, y, z, &_2d_x, &_2d_y, viewport);
if (window->saved_view_x > 0){
_2d_x = min(_2d_x, window->saved_view_x);
}
else{
_2d_x = max(_2d_x, window->saved_view_x);
}
if (window->saved_view_y > 0){
_2d_y = min(_2d_y, window->saved_view_y);
}
else{
_2d_y = max(_2d_y, window->saved_view_y);
}
window->saved_view_x = _2d_x;
window->saved_view_y = _2d_y;
}
x = window->saved_view_x;
y = window->saved_view_y;
if (window->flags & WF_SCROLLING_TO_LOCATION){
// Moves the viewport if focusing in on an item
uint8 flags = 0;
x -= viewport->view_x;
if (x < 0){
x = -x;
flags |= 1;
}
y -= viewport->view_y;
if (y < 0){
y = -y;
flags |= 2;
}
x = (x + 7)/8;
y = (y + 7)/8;
//If we are at the final zoom position
if (!x && !y){
window->flags &= ~WF_SCROLLING_TO_LOCATION;
}
if (flags & 1){
x = -x;
}
if (flags & 2){
y = -y;
}
x += viewport->view_x;
y += viewport->view_y;
}
RCT2_CALLPROC_X(0x6E7DE1, x, y, 0, 0, (int)window, (int)viewport, 0);
}
