|
@@ -832,11 +832,12 @@ static CommandCost ClearTile_TunnelBridg
|
|
|
* @param z Pillar Z
|
|
|
* @param w Bounding box size in X direction
|
|
|
* @param h Bounding box size in Y direction
|
|
|
* @param subsprite Optional subsprite for drawing halfpillars
|
|
|
*/
|
|
|
static inline void DrawPillar(const PalSpriteID *psid, int x, int y, int z, int w, int h)
|
|
|
static inline void DrawPillar(const PalSpriteID *psid, int x, int y, int z, int w, int h, const SubSprite *subsprite)
|
|
|
{
|
|
|
static const int PILLAR_Z_OFFSET = TILE_HEIGHT - BRIDGE_Z_START; ///< Start offset of pillar wrt. bridge (downwards)
|
|
|
AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, w, h, BB_HEIGHT_UNDER_BRIDGE - PILLAR_Z_OFFSET, z, IsTransparencySet(TO_BRIDGES), 0, 0, -PILLAR_Z_OFFSET);
|
|
|
AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, w, h, BB_HEIGHT_UNDER_BRIDGE - PILLAR_Z_OFFSET, z, IsTransparencySet(TO_BRIDGES), 0, 0, -PILLAR_Z_OFFSET, subsprite);
|
|
|
}
|
|
|
|
|
|
/**
|
|
@@ -854,7 +855,7 @@ static int DrawPillarColumn(int z_bottom
|
|
|
{
|
|
|
int cur_z;
|
|
|
for (cur_z = z_top; cur_z >= z_bottom; cur_z -= TILE_HEIGHT) {
|
|
|
DrawPillar(psid, x, y, cur_z, w, h);
|
|
|
DrawPillar(psid, x, y, cur_z, w, h, NULL);
|
|
|
}
|
|
|
return cur_z;
|
|
|
}
|
|
@@ -878,28 +879,26 @@ static void DrawBridgePillars(const PalS
|
|
|
static const int bounding_box_size[2] = {16, 2}; ///< bounding box size of pillars along bridge direction
|
|
|
static const int back_pillar_offset[2] = { 0, 9}; ///< sprite position offset of back facing pillar
|
|
|
|
|
|
SpriteID image = psid->sprite;
|
|
|
if (image == 0) return;
|
|
|
static const int INF = 1000; ///< big number compared to sprite size
|
|
|
static const SubSprite half_pillar_sub_sprite[2][2] = {
|
|
|
{ { -14, -INF, INF, INF }, { -INF, -INF, -15, INF } }, // X axis, north and south
|
|
|
{ { -INF, -INF, 15, INF }, { 16, -INF, INF, INF } }, // Y axis, north and south
|
|
|
};
|
|
|
|
|
|
/* "side" specifies the side the pillars stand on.
|
|
|
* The length of the pillars is then set to the height of the bridge over the corners of this edge.
|
|
|
*
|
|
|
* axis==AXIS_X axis==AXIS_Y
|
|
|
* side==false SW NW
|
|
|
* side==true NE SE
|
|
|
*
|
|
|
* I have no clue, why this was done this way.
|
|
|
*/
|
|
|
bool side = HasBit(image, 0);
|
|
|
|
|
|
/* "dir" means the edge the pillars stand on */
|
|
|
DiagDirection dir = AxisToDiagDir(axis);
|
|
|
if (side != (axis == AXIS_Y)) dir = ReverseDiagDir(dir);
|
|
|
if (psid->sprite == 0) return;
|
|
|
|
|
|
/* Determine ground height under pillars */
|
|
|
int front_height = ti->z;
|
|
|
int back_height = ti->z;
|
|
|
GetSlopeZOnEdge(ti->tileh, dir, &front_height, &back_height);
|
|
|
DiagDirection south_dir = AxisToDiagDir(axis);
|
|
|
int z_front_north = ti->z;
|
|
|
int z_back_north = ti->z;
|
|
|
int z_front_south = ti->z;
|
|
|
int z_back_south = ti->z;
|
|
|
GetSlopeZOnEdge(ti->tileh, south_dir, &z_front_south, &z_back_south);
|
|
|
GetSlopeZOnEdge(ti->tileh, ReverseDiagDir(south_dir), &z_front_north, &z_back_north);
|
|
|
|
|
|
/* Shared height of pillars */
|
|
|
int z_front = max(z_front_north, z_front_south);
|
|
|
int z_back = max(z_back_north, z_back_south);
|
|
|
|
|
|
/* x and y size of bounding-box of pillars */
|
|
|
int w = bounding_box_size[axis];
|
|
@@ -909,11 +908,16 @@ static void DrawBridgePillars(const PalS
|
|
|
int y_back = y - back_pillar_offset[OtherAxis(axis)];
|
|
|
|
|
|
/* Draw front pillars */
|
|
|
DrawPillarColumn(front_height, z_bridge, psid, x, y, w, h);
|
|
|
int bottom_z = DrawPillarColumn(z_front, z_bridge, psid, x, y, w, h);
|
|
|
if (z_front_north < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
|
|
|
if (z_front_south < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
|
|
|
|
|
|
/* Draw back pillars, skip top two parts, which are hidden by the bridge */
|
|
|
if (drawfarpillar) {
|
|
|
DrawPillarColumn(back_height, z_bridge - 2 * (int)TILE_HEIGHT, psid, x_back, y_back, w, h);
|
|
|
int z_bridge_back = z_bridge - 2 * (int)TILE_HEIGHT;
|
|
|
if (drawfarpillar && (z_back_north <= z_bridge_back || z_back_south <= z_bridge_back)) {
|
|
|
bottom_z = DrawPillarColumn(z_back, z_bridge_back, psid, x_back, y_back, w, h);
|
|
|
if (z_back_north < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
|
|
|
if (z_back_south < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
|
|
|
}
|
|
|
}
|
|
|
|