Adding a jump hold

include/components/jump_action.h

@@ -14,6 +14,8 @@ struct jump_action
 {
     gc_component base;
     int acceleration;
+    int counterforce;
+    bool contered;
 };
 
 extern const struct jump_action jump_action;

prefabs/player.gcprefab

@@ -12,7 +12,7 @@
         <gravity_component speed="2000" />
         <keyboard_controller left="16" right="3" jump="57" />
         <walk_action acceleration="3000" max_acceleration="10000" />
-        <jump_action acceleration="7000"/>
+        <jump_action acceleration="7000" counterforce="6000"/>
         <friction_component value=".7" />
         <collision_component />
     </gc_entity>

src/components/jump_component.c

@@ -24,6 +24,7 @@ static void fdctr(gc_scene *scene, void *component, node *n)
     struct jump_action *cmp = (struct jump_action *)component;
 
     cmp->acceleration = xml_getintprop(n, "acceleration");
+    cmp->counterforce = xml_getintprop(n, "counterforce");
     (void)scene;
 }
 

src/systems/jump_system.c

@@ -25,8 +25,13 @@ gc_entity *entity, float dtime)
     struct movable_component *mov = GETCMP(movable_component);
     struct jump_action *jump = GETCMP(jump_action);
 
-    if (col->distance_down == 0)
+    if (col->distance_down == 0) {
         mov->acceleration.y += con->jumping * jump->acceleration;
+        jump->contered = false;
+    } else if (!jump->contered && mov->acceleration.y > 0 && !con->jumping) {
+        jump->contered = true;
+        mov->acceleration.y = MAX(mov->acceleration.y - jump->counterforce, 0);
+    }
     (void)system;
     (void)dtime;
     (void)engine;