hedgewars/uLandGenMaze.pas
author koda
Thu, 04 Apr 2013 01:38:30 +0200
branchwebgl
changeset 8850 ae8a957c69fd
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child 9127 e350500c4edb
permissions -rw-r--r--
engine to c now compiles with some manual intervention (as of bug #596)
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unit uLandGenMaze;
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interface
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procedure GenMaze;
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implementation
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uses uRandom, uLandOutline, uLandTemplates, uVariables, uFloat, uConsts;
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type direction = record x, y: LongInt; end;
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const DIR_N: direction = (x: 0; y: -1);
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    DIR_E: direction = (x: 1; y: 0);
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    DIR_S: direction = (x: 0; y: 1);
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    DIR_W: direction = (x: -1; y: 0);
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{xymeng : make all dynamic arrays static }
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const max_num_cells_x = 4096 div 128;
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   max_num_cells_y    = 4096 div 128;
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   max_num_steps      = 3;
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operator = (const a, b: direction) c: Boolean;
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begin
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    c := (a.x = b.x) and (a.y = b.y);
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end;
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const small_cell_size = 128;
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    medium_cell_size = 192;
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    large_cell_size = 256;
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    braidness = 10;
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type
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   cell_t = record x,y	       : LongInt
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	    end;
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var x, y		       : LongInt;
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    cellsize		       : LongInt; //selected by the user in the gui
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    seen_cells_x, seen_cells_y : LongInt; //number of cells that can be visited by the generator, that is every second cell in x and y direction. the cells between there are walls that will be removed when we move from one cell to another
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    num_edges_x, num_edges_y   : LongInt; //number of resulting edges that need to be vertexificated
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    num_cells_x, num_cells_y   : LongInt; //actual number of cells, depending on cell size
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    seen_list		       : array of array of LongInt;
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    xwalls		       : array of array of Boolean;
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    ywalls		       : array of array of Boolean;
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    x_edge_list		       : array of array of Boolean;
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    y_edge_list		       : array of array of Boolean;
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    maze		       : array of array of Boolean;
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    pa			       : TPixAr;
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    num_vertices	       : LongInt;
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    off_y		       : LongInt;
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    num_steps		       : LongInt;
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    current_step	       : LongInt;
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    step_done		       : array of Boolean;
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    done		       : Boolean;
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{   last_cell		       : array 0..3 of record x, y :LongInt ; end;
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    came_from		       : array of array of record x, y: LongInt; end;
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    came_from_pos	       : array of LongInt;
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}
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    last_cell : array of cell_t;
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    came_from : array of array of cell_t;
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    came_from_pos: array of LongInt;
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    maze_inverted					   : Boolean;
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function when_seen(x: LongInt; y: LongInt): LongInt;
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begin
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if (x < 0) or (x >= seen_cells_x) or (y < 0) or (y >= seen_cells_y) then
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    when_seen := current_step
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else
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    when_seen := seen_list[x, y];
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end;
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function is_x_edge(x, y: LongInt): Boolean;
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begin
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if (x < 0) or (x > num_edges_x) or (y < 0) or (y > num_cells_y) then
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    is_x_edge := false
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else
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    is_x_edge := x_edge_list[x, y];
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end;
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function is_y_edge(x, y: LongInt): Boolean;
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begin
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if (x < 0) or (x > num_cells_x) or (y < 0) or (y > num_edges_y) then
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    is_y_edge := false
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else
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    is_y_edge := y_edge_list[x, y];
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end;
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procedure see_cell;
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var dir: direction;
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    tries: LongInt;
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    x, y: LongInt;
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    found_cell: Boolean;
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    next_dir_clockwise: Boolean;
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begin
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x := last_cell[current_step].x;
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y := last_cell[current_step].y;
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seen_list[x, y] := current_step;
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case GetRandom(4) of
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    0: dir := DIR_N;
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    1: dir := DIR_E;
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    2: dir := DIR_S;
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    3: dir := DIR_W;
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end;
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tries := 0;
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found_cell := false;
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if getrandom(2) = 1 then
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    next_dir_clockwise := true
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else
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    next_dir_clockwise := false;
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while (tries < 5) and (not found_cell) do
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begin
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    if when_seen(x + dir.x, y + dir.y) = current_step then //we are seeing ourselves, try another direction
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    begin
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        //we have already seen the target cell, decide if we should remove the wall anyway
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        //(or put a wall there if maze_inverted, but we are not doing that right now)
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        if (not maze_inverted) and (GetRandom(braidness) = 0) then
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        //or just warn that inverted+braid+indestructible terrain != good idea
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        begin
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            case dir.x of
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                -1:
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                if x > 0 then
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                    ywalls[x-1, y] := false;
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                1:
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                if x < seen_cells_x - 1 then
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                    ywalls[x, y] := false;
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            end;
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            case dir.y of
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                -1:
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                if y > 0 then
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                    xwalls[x, y-1] := false;
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                1:
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                if y < seen_cells_y - 1 then
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                    xwalls[x, y] := false;
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            end;
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        end;
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        if next_dir_clockwise then
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        begin
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            if dir = DIR_N then
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                dir := DIR_E
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            else if dir = DIR_E then
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                dir := DIR_S
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            else if dir = DIR_S then
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                dir := DIR_W
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            else
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                dir := DIR_N;
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        end
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        else
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        begin
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            if dir = DIR_N then
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                dir := DIR_W
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            else if dir = DIR_E then
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                dir := DIR_N
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            else if dir = DIR_S then
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                dir := DIR_E
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   164
            else
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                dir := DIR_S;
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        end
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    end
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    else if when_seen(x + dir.x, y + dir.y) = -1 then //cell was not seen yet, go there
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        begin
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        case dir.y of
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   171
            -1: xwalls[x, y-1] := false;
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            1: xwalls[x, y] := false;
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   173
        end;
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   174
        case dir.x of
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            -1: ywalls[x-1, y] := false;
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            1: ywalls[x, y] := false;
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        end;
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        last_cell[current_step].x := x+dir.x;
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   179
        last_cell[current_step].y := y+dir.y;
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        came_from_pos[current_step] := came_from_pos[current_step] + 1;
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        came_from[current_step, came_from_pos[current_step]].x := x;
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        came_from[current_step, came_from_pos[current_step]].y := y;
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        found_cell := true;
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        end
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    else //we are seeing someone else, quit
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        begin
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        step_done[current_step] := true;
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        found_cell := true;
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        end;
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    tries := tries + 1;
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   192
end;
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if not found_cell then
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   194
    begin
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    last_cell[current_step].x := came_from[current_step, came_from_pos[current_step]].x;
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   196
    last_cell[current_step].y := came_from[current_step, came_from_pos[current_step]].y;
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   197
    came_from_pos[current_step] := came_from_pos[current_step] - 1;
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   198
    
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   199
    if came_from_pos[current_step] >= 0 then
8026
4a4f21070479 merge xymeng's gsoc engine with a few updates (and further checks on symbol definitions)
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        see_cell()
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   201
        
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
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   202
    else
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        step_done[current_step] := true;
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   204
    end;
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end;
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procedure add_vertex(x, y: LongInt);
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   208
var tmp_x, tmp_y: LongInt;
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   209
begin
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   210
if x = NTPX then
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   211
begin
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   212
    if pa.ar[num_vertices - 6].x = NTPX then
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parents:
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   213
    begin
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        num_vertices := num_vertices - 6;
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   215
    end
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   216
    else
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   217
    begin
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        pa.ar[num_vertices].x := NTPX;
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   219
        pa.ar[num_vertices].y := 0;
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   220
    end
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   221
end
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   222
else
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   223
begin
6580
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   224
    if maze_inverted or (x mod 2 = 0) then
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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   225
        tmp_x := cellsize
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
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   226
    else
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   227
        tmp_x := cellsize * 2 div 3;
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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   228
        
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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   229
    if maze_inverted or (y mod 2 = 0) then
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lovelacer
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   230
        tmp_y := cellsize
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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   231
    else
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
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   232
        tmp_y := cellsize * 2 div 3;
6490
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   233
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   234
    pa.ar[num_vertices].x := (x-1)*cellsize + tmp_x;
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   235
    pa.ar[num_vertices].y := (y-1)*cellsize + tmp_y + off_y;
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   236
end;
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num_vertices := num_vertices + 1;
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   238
end;
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parents:
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   239
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   240
procedure add_edge(x, y: LongInt; dir: direction);
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parents:
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   241
var i: LongInt;
531bf083e8db - Give uLand more modularity
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parents:
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   242
begin
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   243
if dir = DIR_N then
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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   244
    begin
6490
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    dir := DIR_W
6580
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   246
    end
6490
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   247
else if dir = DIR_E then
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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   248
    begin
6490
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   249
    dir := DIR_N
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
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   250
    end
6490
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parents:
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   251
else if dir = DIR_S then
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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   252
    begin
6490
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   253
    dir := DIR_E
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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diff changeset
   254
    end
6490
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parents:
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   255
else
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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diff changeset
   256
    begin
6490
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   257
    dir := DIR_S;
6580
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diff changeset
   258
    end;
6490
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parents:
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   259
531bf083e8db - Give uLand more modularity
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   260
for i := 0 to 3 do
6580
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lovelacer
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diff changeset
   261
    begin
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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diff changeset
   262
    if dir = DIR_N then
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   263
        dir := DIR_E
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   264
    else if dir = DIR_E then
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   265
        dir := DIR_S
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   266
    else if dir = DIR_S then
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   267
        dir := DIR_W
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   268
    else
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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   269
        dir := DIR_N;
6490
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parents:
diff changeset
   270
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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   271
if (dir = DIR_N) and is_x_edge(x, y) then
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   272
    begin
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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   273
        x_edge_list[x, y] := false;
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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   274
        add_vertex(x+1, y);
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
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   275
        add_edge(x, y-1, DIR_N);
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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   276
        break;
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   277
    end;
6490
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parents:
diff changeset
   278
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   279
if (dir = DIR_E) and is_y_edge(x+1, y) then
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   280
    begin
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   281
        y_edge_list[x+1, y] := false;
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
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   282
        add_vertex(x+2, y+1);
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   283
        add_edge(x+1, y, DIR_E);
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   284
        break;
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   285
    end;
6490
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parents:
diff changeset
   286
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   287
if (dir = DIR_S) and is_x_edge(x, y+1) then
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   288
    begin
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   289
        x_edge_list[x, y+1] := false;
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   290
        add_vertex(x+1, y+2);
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   291
        add_edge(x, y+1, DIR_S);
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   292
        break;
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   293
    end;
6490
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parents:
diff changeset
   294
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   295
if (dir = DIR_W) and is_y_edge(x, y) then
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   296
    begin
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   297
        y_edge_list[x, y] := false;
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   298
        add_vertex(x, y+1);
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   299
        add_edge(x-1, y, DIR_W);
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
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   300
        break;
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   301
    end;
6490
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   302
end;
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parents:
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   303
531bf083e8db - Give uLand more modularity
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parents:
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   304
end;
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unc0rr
parents:
diff changeset
   305
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   306
procedure GenMaze;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   307
begin
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unc0rr
parents:
diff changeset
   308
case cTemplateFilter of
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parents:
diff changeset
   309
    0: begin
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parents:
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   310
        cellsize := small_cell_size;
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parents:
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   311
        maze_inverted := false;
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parents:
diff changeset
   312
    end;
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unc0rr
parents:
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   313
    1: begin
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unc0rr
parents:
diff changeset
   314
        cellsize := medium_cell_size;
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unc0rr
parents:
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   315
        maze_inverted := false;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   316
    end;
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unc0rr
parents:
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   317
    2: begin
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unc0rr
parents:
diff changeset
   318
        cellsize := large_cell_size;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
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   319
        maze_inverted := false;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   320
    end;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   321
    3: begin
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   322
        cellsize := small_cell_size;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   323
        maze_inverted := true;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   324
    end;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   325
    4: begin
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   326
        cellsize := medium_cell_size;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   327
        maze_inverted := true;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   328
    end;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   329
    5: begin
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   330
        cellsize := large_cell_size;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   331
        maze_inverted := true;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   332
    end;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   333
end;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   334
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   335
num_cells_x := LAND_WIDTH div cellsize;
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   336
if not odd(num_cells_x) then
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   337
    num_cells_x := num_cells_x - 1; //needs to be odd
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   338
    
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   339
num_cells_y := LAND_HEIGHT div cellsize;
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   340
if not odd(num_cells_y) then
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   341
    num_cells_y := num_cells_y - 1;
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   342
    
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   343
num_edges_x := num_cells_x - 1;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   344
num_edges_y := num_cells_y - 1;
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   345
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   346
seen_cells_x := num_cells_x div 2;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   347
seen_cells_y := num_cells_y div 2;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   348
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   349
if maze_inverted then
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   350
    num_steps := 3 //TODO randomize, between 3 and 5?
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   351
else
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   352
    num_steps := 1;
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   353
    
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   354
SetLength(step_done, num_steps);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   355
SetLength(last_cell, num_steps);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   356
SetLength(came_from_pos, num_steps);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   357
SetLength(came_from, num_steps, num_cells_x*num_cells_y);
8026
4a4f21070479 merge xymeng's gsoc engine with a few updates (and further checks on symbol definitions)
koda
parents: 6580
diff changeset
   358
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   359
done := false;
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   360
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   361
for current_step := 0 to num_steps - 1 do
8026
4a4f21070479 merge xymeng's gsoc engine with a few updates (and further checks on symbol definitions)
koda
parents: 6580
diff changeset
   362
begin
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   363
    step_done[current_step] := false;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   364
    came_from_pos[current_step] := 0;
8026
4a4f21070479 merge xymeng's gsoc engine with a few updates (and further checks on symbol definitions)
koda
parents: 6580
diff changeset
   365
end;
4a4f21070479 merge xymeng's gsoc engine with a few updates (and further checks on symbol definitions)
koda
parents: 6580
diff changeset
   366
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   367
current_step := 0;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   368
8026
4a4f21070479 merge xymeng's gsoc engine with a few updates (and further checks on symbol definitions)
koda
parents: 6580
diff changeset
   369
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   370
SetLength(seen_list, seen_cells_x, seen_cells_y);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   371
SetLength(xwalls, seen_cells_x, seen_cells_y - 1);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   372
SetLength(ywalls, seen_cells_x - 1, seen_cells_y);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   373
SetLength(x_edge_list, num_edges_x, num_cells_y);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   374
SetLength(y_edge_list, num_cells_x, num_edges_y);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   375
SetLength(maze, num_cells_x, num_cells_y);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   376
8026
4a4f21070479 merge xymeng's gsoc engine with a few updates (and further checks on symbol definitions)
koda
parents: 6580
diff changeset
   377
   
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   378
num_vertices := 0;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   379
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   380
playHeight := num_cells_y * cellsize;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   381
playWidth := num_cells_x * cellsize;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   382
off_y := LAND_HEIGHT - playHeight;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   383
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   384
for x := 0 to playWidth do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   385
    for y := 0 to off_y - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   386
        Land[y, x] := 0;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   387
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   388
for x := 0 to playWidth do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   389
    for y := off_y to LAND_HEIGHT - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   390
        Land[y, x] := lfBasic;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   391
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   392
for y := 0 to num_cells_y - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   393
    for x := 0 to num_cells_x - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   394
        maze[x, y] := false;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   395
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   396
for x := 0 to seen_cells_x - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   397
    for y := 0 to seen_cells_y - 2 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   398
        xwalls[x, y] := true;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   399
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   400
for x := 0 to seen_cells_x - 2 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   401
    for y := 0 to seen_cells_y - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   402
        ywalls[x, y] := true;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   403
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   404
for x := 0 to seen_cells_x - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   405
    for y := 0 to seen_cells_y - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   406
        seen_list[x, y] := -1;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   407
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   408
for x := 0 to num_edges_x - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   409
    for y := 0 to num_cells_y - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   410
        x_edge_list[x, y] := false;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   411
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   412
for x := 0 to num_cells_x - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   413
    for y := 0 to num_edges_y - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   414
        y_edge_list[x, y] := false;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   415
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   416
for current_step := 0 to num_steps-1 do
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   417
    begin
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   418
    x := GetRandom(seen_cells_x - 1) div LongWord(num_steps);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   419
    last_cell[current_step].x := x + current_step * seen_cells_x div num_steps;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   420
    last_cell[current_step].y := GetRandom(seen_cells_y);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   421
end;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   422
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   423
while not done do
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   424
    begin
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   425
    done := true;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   426
    for current_step := 0 to num_steps-1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   427
    begin
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   428
        if not step_done[current_step] then
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   429
        begin
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   430
            see_cell;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   431
            done := false;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   432
        end;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   433
    end;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   434
end;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   435
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   436
for x := 0 to seen_cells_x - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   437
    for y := 0 to seen_cells_y - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   438
        if seen_list[x, y] > -1 then
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   439
            maze[(x+1)*2-1, (y+1)*2-1] := true;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   440
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   441
for x := 0 to seen_cells_x - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   442
    for y := 0 to seen_cells_y - 2 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   443
        if not xwalls[x, y] then
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   444
            maze[x*2 + 1, y*2 + 2] := true;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   445
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   446
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   447
for x := 0 to seen_cells_x - 2 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   448
     for y := 0 to seen_cells_y - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   449
        if not ywalls[x, y] then
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   450
            maze[x*2 + 2, y*2 + 1] := true;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   451
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   452
for x := 0 to num_edges_x - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   453
    for y := 0 to num_cells_y - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   454
        if maze[x, y] xor maze[x+1, y] then
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   455
            x_edge_list[x, y] := true
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   456
        else
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   457
            x_edge_list[x, y] := false;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   458
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   459
for x := 0 to num_cells_x - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   460
    for y := 0 to num_edges_y - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   461
        if maze[x, y] xor maze[x, y+1] then
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   462
            y_edge_list[x, y] := true
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   463
        else
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   464
            y_edge_list[x, y] := false;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   465
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   466
for x := 0 to num_edges_x - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   467
    for y := 0 to num_cells_y - 1 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   468
        if x_edge_list[x, y] then
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   469
            begin
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   470
            x_edge_list[x, y] := false;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   471
            add_vertex(x+1, y+1);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   472
            add_vertex(x+1, y);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   473
            add_edge(x, y-1, DIR_N);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   474
            add_vertex(NTPX, 0);
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   475
            end;
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   476
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   477
pa.count := num_vertices;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   478
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   479
RandomizePoints(pa);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   480
BezierizeEdge(pa, _0_25);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   481
RandomizePoints(pa);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   482
BezierizeEdge(pa, _0_25);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   483
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   484
DrawEdge(pa, 0);
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   485
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   486
if maze_inverted then
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   487
    FillLand(1, 1+off_y)
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   488
else
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   489
    begin
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   490
    x := 0;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   491
    while Land[cellsize div 2 + cellsize + off_y, x] = lfBasic do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   492
        x := x + 1;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   493
    while Land[cellsize div 2 + cellsize + off_y, x] = 0 do
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   494
        x := x + 1;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   495
    FillLand(x+1, cellsize div 2 + cellsize + off_y);
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   496
    end;
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   497
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   498
MaxHedgehogs:= 32;
6580
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   499
if (GameFlags and gfDisableGirders) <> 0 then
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   500
    hasGirders:= false
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   501
else
6155187bf599 A partial reformatting of the pascal code to have consistent syntax. Things that are still inconsistent.
lovelacer
parents: 6490
diff changeset
   502
    hasGirders := true;
6490
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   503
leftX:= 0;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   504
rightX:= playWidth;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   505
topY:= off_y;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   506
hasBorder := false;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   507
end;
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   508
531bf083e8db - Give uLand more modularity
unc0rr
parents:
diff changeset
   509
end.