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75 lines
2.4 KiB
Plaintext
75 lines
2.4 KiB
Plaintext
/datum/spell_targeting/cone
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max_targets = INFINITY
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use_intercept_click = TRUE
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/// This controls how many levels the cone has. Increase this value to make a bigger cone.
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var/cone_levels = 3
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/// This value determines if the cone penetrates walls.
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var/respect_density = FALSE
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/datum/spell_targeting/cone/choose_targets(mob/user, datum/spell/spell, params, atom/clicked_atom)
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var/list/turfs_to_return = list()
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var/turf/turf_to_use = get_turf(user)
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var/turf/left_turf
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var/turf/right_turf
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var/dir_to_use = user.dir
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var/right_dir
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var/left_dir
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switch(dir_to_use)
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if(NORTH)
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left_dir = WEST
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right_dir = EAST
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if(SOUTH)
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left_dir = EAST
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right_dir = WEST
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if(EAST)
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left_dir = NORTH
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right_dir = SOUTH
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if(WEST)
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left_dir = SOUTH
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right_dir = NORTH
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// Go though every level of the cone levels and generate the cone.
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for(var/level in 1 to cone_levels)
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var/list/level_turfs = list()
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// Our center turf always exists, it's straight ahead of the caster.
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turf_to_use = get_step(turf_to_use, dir_to_use)
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level_turfs += turf_to_use
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// Level 1 only ever has 1 turf, it's a cone.
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if(level != 1)
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var/level_width_in_each_direction = round((calculate_cone_shape(level) - 1) / 2)
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left_turf = turf_to_use
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right_turf = turf_to_use
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// Check turfs to the left...
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for(var/left_of_center in 1 to level_width_in_each_direction)
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if(respect_density && left_turf.density)
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break
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left_turf = get_step(left_turf, left_dir)
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level_turfs += left_turf
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// And turfs to the right.
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for(var/right_of_enter in 1 to level_width_in_each_direction)
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if(respect_density && right_turf.density)
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break
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right_turf = get_step(right_turf, right_dir)
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level_turfs += right_turf
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// Add the list of all turfs on this level to the turfs to return
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turfs_to_return += list(level_turfs)
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// If we're at the last level, we're done
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if(level == cone_levels)
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break
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// But if we're not at the last level, we should check that we can keep going
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if(respect_density && turf_to_use.density)
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break
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return turfs_to_return
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/**
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* Adjusts the width of the cone at the passed level.
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* This is never called on the first level of the cone (level 1 is always 1 width)
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*
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* Return a number - the TOTAL width of the cone at the passed level.
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*/
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/datum/spell_targeting/cone/proc/calculate_cone_shape(current_level)
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// Default formula: (1 (innate) -> 3 -> 5 -> 5 -> 7 -> 7 -> 9 -> 9 -> ...)
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return current_level + (current_level % 2) + 1
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