Initial commit

init.lua

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+function show_heart(pos)
+	minetest.add_particle(
+	    {
+	        pos = pos,
+	        velocity = {x=0, y=1, z=0},
+	        acceleration = {x=0, y=0, z=0},
+	        -- Spawn particle at pos with velocity and acceleration
+	
+	        expirationtime = 1,
+	        -- Disappears after expirationtime seconds
+	
+	        size = 3,
+	        -- Scales the visual size of the particle texture.
+	        -- If `node` is set, size can be set to 0 to spawn a randomly-sized
+	        -- particle (just like actual node dig particles).
+	
+	        texture = "heart.png",
+	        -- The texture of the particle
+	
+	        glow = 0
+	        -- Optional, specify particle self-luminescence in darkness.
+	        -- Values 0-14.
+	    }
+	    )
+
+end
+
+function show_hearts(player)
+	local hearts = 2+math.ceil(math.random()*3)
+	local player_pos = player:get_pos()
+	local looking_dir = player:get_look_dir()
+	looking_dir.y = 0 
+
+	for i=0,hearts do
+		local vert_offset = 1.5*math.random()-0.75
+		local y_offset = 0.5*math.random() + 1.5
+		local offset = vector.multiply(looking_dir, vert_offset)
+		offset.y = y_offset
+		offset.x, offset.z = offset.z, offset.x
+
+		show_heart(vector.add(player_pos,offset))
+	end
+end
+
+minetest.register_on_player_hpchange(function(player, hp_change, reason) 
+	if hp_change < 0 then
+		show_hearts(player)
+	end
+end)

mod.conf

@@ -0,0 +1,2 @@
+name=testochism
+description="A small mod to show heart particles when taking damage"