[Abilities] Made a first example attack ability

1 files changed, 20 insertions, 2 deletions

diff --git a/example/scripts/abilities.lua b/example/scripts/abilities.lua
index 263c20ce..7c25eb09 100644
--- a/example/scripts/abilities.lua
+++ b/example/scripts/abilities.lua
@@ -11,6 +11,24 @@
 local spell1 = get_ability_info("Magic_Test Spell 1")
 spell1:on_use(function(user, x, y, abilityId)
     target = target or user
-    target:say("Kaaame...Haaame... HAAAAAA! " .. x .. " " .. y)
+    local s_x, s_y = user:position()
+    -- d_x, d_y will be the relative center of the attack
+    -- (it will be 1 tile in front of the attacker)
+    local d_x, d_y = x - s_x, y - s_y
+    local length = math.sqrt(d_x * d_x + d_y * d_y)
+    d_x = d_x / length * TILESIZE
+    d_y = d_x / length * TILESIZE
+
+    local target_x, target_y = s_x + d_x, s_y + d_y
+
+    -- Attack radius is TILESIZE
+    local affected_beings = get_beings_in_circle(target_x, target_y, TILESIZE)
+    for _, being in ipairs(affected_beings) do
+        if being ~= user then
+            local old_hp = being:base_attribute(ATTR_HP)
+            local new_hp = math.max(old_hp - 5, 0)
+            being:set_base_attribute(ATTR_HP, new_hp)
+        end
+    end
 end)
-spell1:on_recharged(function(ch) ch:say("Hoooooooo...") end)
+--spell1:on_recharged(function(ch) ch:say("Hoooooooo...") end)