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--- skills:jumping [2007/01/24 21:17]
127.0.0.1 external edit
+++ skills:jumping [2018/02/21 20:15]
karl Add hint that jumping as attack may work since server version 1.70.y correctly, add math example to compute the amount of tiles to jump
@@ Line 1: / Line 1: @@
+====== Skill Jumping ======
+===== Description =====
-====== Description ======
+User can 'skip' over 1-2 spaces in a selected direction. Distance depends on [[:characters:carrying_capacity|weight carried]] , [[:characters:str|STR]] and [[:characters:dex|DEX]] of the user. This skill may also be used as an attack.  Jumping is a Physique skill type.
-User can 'skip' over 1-2 spaces in a selected direction. Distance depends on weight carried, STR and DEX of the user. This skill may also be used as an attack.  Jumping is a Physique skill type.
+:!: The jumping attack works as a [[:skills:melee]] attack probably as of server version //1.70.y// . \\ The current server //1.12.svn// at [[:servers:metalforge]] [[http://www.metalforge.net/|.net]] seems not to compute the jump attack in //attack_ob_simple()// or the functions before correctly. \\
+The server since v.1.70.y issues the message //You feel more confident in combat.// to the client, when one of the melee skills is readied.
-====== Use Skill ======
-Unknown
+===== Use Skill =====
-====== Ready Skill ======
+Unknown, should immediately attempt to jump in the direction, the player is facing. \\
+Syntax : ''use_skill jumping''
+===== Ready Skill =====
+User can 'skip' over 1-2 spaces in a selected direction when fired with the shift key. \\
+This will attack if a creature is in the way. \\
+Syntax : ''ready_skill jumping''
+===== Mathematics =====
+From [[:server:server_compiling|Server]] source code file // crossfire/server/skills.c // function // int jump(object *pl, int dir, object *skill) // : \\
+''stats=str*str*str*dex * skill->level;''\\
+Which then translates as STR<sup>3</sup> **multiply** DEX **multiply** SKILL_LEVEL \\
+and this number is then **divided** by the carrying weight of the inventory to receive the sum of tiles to jump.
+Example : STR=25, DEX=17, JUMP_LEVEL=4, PL_CARRYING=500'000
+>  ( (25 * 25 *25) * 17 * 4 ) / 500000
+>> ( 15625 * 17 * 4 ) / 500000
+>> ( 1062500 ) / 500000
+>>> 2.125
+Distance limited to 2 tiles:
+<code c>
+    if(pl->carrying!=0)		/* don't want div by zero !! */
+	spaces=(int) (stats/pl->carrying);
+    else
+	spaces=2;	/* pl has no objects - gets the far jump */
+    if(spaces>2)
+	 spaces = 2;
+    else if(spaces==0) {
+	new_draw_info(NDI_UNIQUE, 0,pl,"You are carrying too much weight to jump.");
+	return 0;
+</code>
+===== Discussion =====
+The source code has a comment that asks for allowing a greater distance to jump :
+> * Perhaps we should allow more spaces based on level, eg, level 50
+> * jumper can jump several spaces?
-User can 'skip' over 1-2 spaces in a selected direction when fired with the shift key.  This will attack if a creature is in the way.

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