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Merge pull request #2297 from osconnoisseur/decompile-map_set_land_height 

Decompilation of map_set_land_height
This commit is contained in:
Duncan 2015-11-30 20:35:50 +00:00
parent 1a9b96340c da79f706f3
commit 396e6f8fee
2 changed files with 150 additions and 3 deletions
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1
src/localisation/string_ids.h
View File

@ -497,6 +497,7 @@ enum {
STR_QUEUE_TIME_MINUTES = 1360,
STR_TOO_HIGH_FOR_SUPPORTS = 1363,
STR_SUPPORTS_CANT_BE_EXTENDED = 1364,
STR_IN_LINE_TWIST_LEFT = 1365,
STR_IN_LINE_TWIST_RIGHT = 1366,

152
src/world/map.c
View File

@ -1558,10 +1558,149 @@ static money32 map_set_land_height(int flags, int x, int y, int height, int styl
return MONEY32_UNDEFINED;
}
}
//Uncomment to use vanilla code
/*
registers regs = {0};
regs.eax = x;
regs.ebx = flags;
regs.ecx = y;
regs.dl = height;
regs.dh = style;
regs.esi = 0;
regs.edi = selectionType << 5;
regs.ebp = 0;
RCT2_CALLFUNC_Y(0x006639FE, &regs); return regs.ebx;
*/
RCT2_GLOBAL(0x9E2E18, money32) = MONEY(0, 0);
if(flags & GAME_COMMAND_FLAG_APPLY)
{
footpath_remove_litter(x, y, map_element_height(x, y));
map_remove_walls_at(x, y, height * 8 - 16, height * 8 + 32);
}
RCT2_GLOBAL(0x9E2E18, money32) += MONEY(20, 0);
//Check for obstructing scenery
rct_map_element *mapElement = map_get_first_element_at(x / 32, y / 32);
do{
if(map_element_get_type(mapElement) != MAP_ELEMENT_TYPE_SCENERY)
continue;
if(height > mapElement->clearance_height)
continue;
if(height + 4 < mapElement->base_height)
continue;
rct_scenery_entry *sceneryEntry = RCT2_ADDRESS(RCT2_ADDRESS_SMALL_SCENERY_ENTRIES, rct_scenery_entry *)[mapElement->properties.scenery.type]; //sceneryEntry = eax
if(sceneryEntry->small_scenery.height > 64 && RCT2_GLOBAL(RCT2_ADDRESS_PARK_FLAGS, uint32) & PARK_FLAGS_FORBID_TREE_REMOVAL)
{
map_obstruction_set_error_text(mapElement);
return MONEY32_UNDEFINED;
}
RCT2_GLOBAL(0x9E2E18, money32) += MONEY(sceneryEntry->small_scenery.removal_price, 0);
if(flags & GAME_COMMAND_FLAG_APPLY)
map_element_remove(mapElement--);
}while(!map_element_is_last_for_tile(mapElement++));
//Check for ride support limits
if(gCheatsDisableSupportLimits==false)
{
mapElement = map_get_first_element_at(x / 32, y / 32);
do{
if(map_element_get_type(mapElement) != MAP_ELEMENT_TYPE_TRACK)
continue;
int rideIndex = mapElement->properties.track.ride_index;
int maxHeight = GET_RIDE_ENTRY(GET_RIDE(rideIndex)->subtype)->max_height;
if(maxHeight == 0)
maxHeight = RCT2_GLOBAL(0x97D218 + 8 * GET_RIDE(rideIndex)->type, uint8);
int zDelta = mapElement->clearance_height - height;
if(zDelta >= 0 && zDelta/2 > maxHeight)
{
RCT2_GLOBAL(RCT2_ADDRESS_GAME_COMMAND_ERROR_TEXT, rct_string_id) = STR_SUPPORTS_CANT_BE_EXTENDED;
return MONEY32_UNDEFINED;
}
}while(!map_element_is_last_for_tile(mapElement++));
}
int eax = x, ebx = flags, ecx = y, edx = (style << 8) | height, esi = 0, edi = selectionType << 5, ebp = 0;
RCT2_CALLFUNC_X(0x006639FE, &eax, &ebx, &ecx, &edx, &esi, &edi, &ebp);
return ebx;
uint8 zCorner = height; //z position of highest corner of tile
rct_map_element *surfaceElement = map_get_surface_element_at(x / 32, y / 32);
if(surfaceElement->type & MAP_ELEMENT_TYPE_FLAG_HIGHLIGHT)
{
int waterHeight = surfaceElement->properties.surface.terrain & MAP_ELEMENT_WATER_HEIGHT_MASK;
if(waterHeight != 0)
{
if(style & 0x1F)
{
zCorner += 2;
if(style & 0x10)
{
zCorner += 2;
}
}
if(zCorner > waterHeight * 2 - 2)
{
surfaceElement++;
map_obstruction_set_error_text(surfaceElement);
return MONEY32_UNDEFINED;
}
}
}
zCorner = height;
if(style & 0xF)
{
zCorner += 2;
if(style & 0x10)
{
zCorner += 2;
}
}
if(map_can_construct_with_clear_at(x, y, height, zCorner, RCT2_ADDRESS(0x663CB9, void), 0xF) == false)
return MONEY32_UNDEFINED;
mapElement = map_get_first_element_at(x / 32, y / 32);
do{
int elementType = map_element_get_type(mapElement);
if(elementType == MAP_ELEMENT_TYPE_FENCE)
continue;
if(elementType == MAP_ELEMENT_TYPE_SCENERY)
continue;
if(mapElement->flags & 0x10)
continue;
if(mapElement == surfaceElement)
continue;
if(mapElement > surfaceElement)
{
if(zCorner > mapElement->base_height)
{
map_obstruction_set_error_text(mapElement);
return MONEY32_UNDEFINED;
}
continue;
}
if(height < mapElement->clearance_height)
{
map_obstruction_set_error_text(mapElement);
return MONEY32_UNDEFINED;
}
}while(!map_element_is_last_for_tile(mapElement++));
if(flags & GAME_COMMAND_FLAG_APPLY)
{
surfaceElement = map_get_surface_element_at(x / 32, y / 32);
surfaceElement->base_height = height;
surfaceElement->clearance_height = height;
surfaceElement->properties.surface.slope &= MAP_ELEMENT_SLOPE_EDGE_STYLE_MASK;
surfaceElement->properties.surface.slope |= style;
int slope = surfaceElement->properties.surface.terrain & MAP_ELEMENT_SLOPE_MASK;
if(slope != 0 && slope <= height / 2)
surfaceElement->properties.surface.terrain &= MAP_ELEMENT_SURFACE_TERRAIN_MASK;
map_invalidate_tile_full(x, y);
}
if(RCT2_GLOBAL(RCT2_ADDRESS_PARK_FLAGS, uint32) & PARK_FLAGS_NO_MONEY)
return 0;
return RCT2_GLOBAL(0x9E2E18, money32);
}
void game_command_set_land_height(int *eax, int *ebx, int *ecx, int *edx, int *esi, int *edi, int *ebp)
@ -3634,6 +3773,12 @@ static void map_obstruction_set_error_text(rct_map_element *mapElement)
/**
*
* rct2: 0x0068B932
* ax = x
* cx = y
* dl = zLow
* dh = zHigh
* ebp = clearFunc
* bl = bl
*/
int map_can_construct_with_clear_at(int x, int y, int zLow, int zHigh, void *clearFunc, uint8 bl)
{
@ -4865,3 +5010,4 @@ rct_map_element *map_get_track_element_at_of_type(int x, int y, int z, int track
return NULL;
}