90 lines
2.8 KiB
Python
90 lines
2.8 KiB
Python
import sys
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import json
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import shared
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TEMPLATE = """
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// generated code! be nice
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#include "sys/sys.h"
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sys_i32 {{map_name}}_player_start_x = {{player_start.0}};
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sys_i32 {{map_name}}_player_start_y = {{player_start.1}};
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sys_maptile {{map_name}}_data[{{width * height}}] = { {{ tiles|join(",") }} };
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sys_map {{map_name}} = {
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.tiles={{map_name}}_data,
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.width={{width}},
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.height={{height}},
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};
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""".lstrip()
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def main(map_name, fname_ldtk, fname_c):
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width, height, tiles, player_start = load_mapdata(fname_ldtk)
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with open(fname_c, "wt") as output:
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output.write(
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shared.templates.from_string(TEMPLATE).render(
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map_name=map_name,
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player_start=player_start,
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tiles=tiles,
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width=width,
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height=height,
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)
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)
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def load_mapdata(fname_ldtk):
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sparse_tiles = {}
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player_start_xy = None
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with open(fname_ldtk, "rt") as f:
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data = json.load(f)
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for level in data["levels"]:
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level_x = level["worldX"] // 8
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level_y = level["worldY"] // 8
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for layer in level["layerInstances"]:
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w = layer["__cWid"]
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h = layer["__cHei"]
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if layer["__identifier"] == "vague":
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# for right now I use the vague layer to assign tiles
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for x, y, ix in annot_xy(layer["intGridCsv"], w, h):
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if ix == 0:
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continue
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sparse_tiles[level_x + x, level_y + y] = ix
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if layer["__identifier"] == "entities":
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for e in layer["entityInstances"]:
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x, y = e["__grid"]
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player_start_xy = (level_x + x, level_y + y)
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assert player_start_xy is not None, "player start not found"
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x_min = 0
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y_min = 0
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assert not any(x for (x, _) in sparse_tiles if x < x_min), "level can't be left of (0, 0)"
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assert not any(y for (_, y) in sparse_tiles if y < y_min), "level can't be up from (0, 0)"
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width = max(x for (x, _) in sparse_tiles) + 1
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height = max(y for (_, y) in sparse_tiles) + 1
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dense_tiles = []
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for y in range(height):
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for x in range(width):
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k = (x, y)
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if k in sparse_tiles:
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dense_tiles.append(sparse_tiles[k])
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else:
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dense_tiles.append(0)
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return width, height, dense_tiles, player_start_xy
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def annot_xy(lst, w, h):
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assert len(lst) == w * h
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for y in range(h):
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for x in range(w):
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yield x, y, lst[y * w + x]
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if __name__ == "__main__":
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assert len(sys.argv) == 4, \
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"there must be three args (map name, src ldtk, out c)"
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main(sys.argv[1], sys.argv[2], sys.argv[3]) |