51 lines
1.3 KiB
Lua
51 lines
1.3 KiB
Lua
function _init()
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init_sound()
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init_mapgen()
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init_player({block_size/2, block_size/2})
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generate_map({0, 0})
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debug = false
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end
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function _update()
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handle_input()
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handle_map_update()
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if (btn(5) and btn(4) and btnp(3)) debug = not debug
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end
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function _draw()
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rectfill(0, 0, 127, 127, 0)
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-- the screen is 128x128 pixels, so it fits 16x16 sprites
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map(camera_pos[1], camera_pos[2], 0, 0, 16, 16)
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draw_player()
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if debug then
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render_debug_info()
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end
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end
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-- decide whether we need to regenerate the map.
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-- if so, call generate_map appropriately and reset coordinates.
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function handle_map_update()
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if out_of_bounds(camera_pos) then -- out_of_bounds() checks all screen bounds
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-- we need to regenerate the map, so we generate a map chunk that
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-- places the player in the middle of it.
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generate_map({player_pos[1]-block_size/2, player_pos[2]-block_size/2})
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camera_pos = {block_size/2 - 8, block_size/2 - 8}
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end
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end
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function out_of_bounds(pos)
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return pos[1] < 0 or pos[1] > block_size-16 or pos[2] < 0 or pos[2] > block_size-16
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end
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function render_debug_info()
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clip(0, 0, 32, 24)
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rectfill(0, 0, 32, 24, 0)
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print(stat(0), 0, 0, 15)
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print(camera_pos[1], 0, 8, 15)
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print(camera_pos[2], 16, 8, 15)
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print(player_pos[1], 0, 16, 15)
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print(player_pos[2], 16, 16, 15)
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clip()
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end
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