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https://github.com/alexbatalov/fallout2-ce.git
synced 2024-09-04 05:49:11 +00:00
Use stack on the heap for roof fill (#263)
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69
src/tile.cc
69
src/tile.cc
@ -5,6 +5,7 @@
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#include <string.h>
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#include <algorithm>
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#include <stack>
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#include "art.h"
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#include "color.h"
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@ -49,11 +50,16 @@ typedef struct UpsideDownTriangle {
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int field_8;
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} UpsideDownTriangle;
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struct roof_fill_task {
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int x;
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int y;
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};
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static void tileSetBorder(int windowWidth, int windowHeight, int hexGridWidth, int hexGridHeight);
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static void tileRefreshMapper(Rect* rect, int elevation);
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static void tileRefreshGame(Rect* rect, int elevation);
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static void roof_fill_on(int x, int y, int elevation);
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static void roof_fill_off(int x, int y, int elevation);
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static void roof_fill_push_task_if_in_bounds(std::stack<roof_fill_task>& tasks_stack, int x, int y);
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static void roof_fill_off_process_task(std::stack<roof_fill_task>& tasks_stack, int elevation, bool on);
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static void tileRenderRoof(int fid, int x, int y, Rect* rect, int light);
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static void _draw_grid(int tile, int elevation, Rect* rect);
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static void tileRenderFloor(int fid, int x, int y, Rect* rect);
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@ -1258,10 +1264,18 @@ void tileRenderRoofsInRect(Rect* rect, int elevation)
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}
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}
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// 0x4B22D0
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static void roof_fill_on(int x, int y, int elevation)
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static void roof_fill_push_task_if_in_bounds(std::stack<roof_fill_task>& tasks_stack, int x, int y)
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{
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if (x >= 0 && x < gSquareGridWidth && y >= 0 && y < gSquareGridHeight) {
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tasks_stack.push(roof_fill_task { x, y });
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};
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};
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static void roof_fill_off_process_task(std::stack<roof_fill_task>& tasks_stack, int elevation, bool on)
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{
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auto [x, y] = tasks_stack.top();
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tasks_stack.pop();
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int squareTileIndex = gSquareGridWidth * y + x;
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int squareTile = gTileSquares[elevation]->field_0[squareTileIndex];
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int roof = (squareTile >> 16) & 0xFFFF;
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@ -1269,16 +1283,20 @@ static void roof_fill_on(int x, int y, int elevation)
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int id = roof & 0xFFF;
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if (buildFid(OBJ_TYPE_TILE, id, 0, 0, 0) != buildFid(OBJ_TYPE_TILE, 1, 0, 0, 0)) {
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int flag = (roof & 0xF000) >> 12;
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if ((flag & 0x01) != 0) {
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if (on ? ((flag & 0x01) != 0) : ((flag & 0x03) == 0)) {
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if (on) {
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flag &= ~0x01;
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} else {
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flag |= 0x01;
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}
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gTileSquares[elevation]->field_0[squareTileIndex] = (squareTile & 0xFFFF) | (((flag << 12) | id) << 16);
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roof_fill_on(x - 1, y, elevation);
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roof_fill_on(x + 1, y, elevation);
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roof_fill_on(x, y - 1, elevation);
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roof_fill_on(x, y + 1, elevation);
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}
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roof_fill_push_task_if_in_bounds(tasks_stack, x - 1, y);
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roof_fill_push_task_if_in_bounds(tasks_stack, x + 1, y);
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roof_fill_push_task_if_in_bounds(tasks_stack, x, y - 1);
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roof_fill_push_task_if_in_bounds(tasks_stack, x, y + 1);
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}
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}
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}
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@ -1286,35 +1304,12 @@ static void roof_fill_on(int x, int y, int elevation)
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// 0x4B23D4
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void tile_fill_roof(int x, int y, int elevation, bool on)
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{
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if (on) {
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roof_fill_on(x, y, elevation);
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} else {
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roof_fill_off(x, y, elevation);
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}
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}
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std::stack<roof_fill_task> tasks_stack;
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// 0x4B23DC
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static void roof_fill_off(int x, int y, int elevation)
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{
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if (x >= 0 && x < gSquareGridWidth && y >= 0 && y < gSquareGridHeight) {
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int squareTileIndex = gSquareGridWidth * y + x;
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int squareTile = gTileSquares[elevation]->field_0[squareTileIndex];
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int roof = (squareTile >> 16) & 0xFFFF;
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roof_fill_push_task_if_in_bounds(tasks_stack, x, y);
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int id = roof & 0xFFF;
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if (buildFid(OBJ_TYPE_TILE, id, 0, 0, 0) != buildFid(OBJ_TYPE_TILE, 1, 0, 0, 0)) {
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int flag = (roof & 0xF000) >> 12;
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if ((flag & 0x03) == 0) {
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flag |= 0x01;
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gTileSquares[elevation]->field_0[squareTileIndex] = (squareTile & 0xFFFF) | (((flag << 12) | id) << 16);
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roof_fill_off(x - 1, y, elevation);
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roof_fill_off(x + 1, y, elevation);
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roof_fill_off(x, y - 1, elevation);
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roof_fill_off(x, y + 1, elevation);
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}
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}
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while (!tasks_stack.empty()) {
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roof_fill_off_process_task(tasks_stack, elevation, on);
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}
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}
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