efl/legacy/edje/src/examples/physics_actions.edc

/* It can be tested with edje_player slave mode
 * $ edje_player -S physics_actions.edj
 *
 * signal up impulse   -> will throw both balls up
 * signal left impulse -> will throw blue ball to the left
 * signal clockwise impulse -> will roll blue ball in clockwise
 * signal counterclockwise impulse -> will roll blue ball in counterclockwise
 *
 * message 1 FLOAT_SET 3 50 -100 0 -> apply an impulse on blue ball with
 *    x = 50, y = -100, z = 0, for example
 * message 2 FLOAT_SET 3 0 0 8.2 -> apply a torque impulse on blue ball with
 *    x = 4, y = 0, z = 0.8, for example
 */

#define ID_IMPULSE (1)
#define ID_TORQUE_IMPULSE (2)

collections {

   images {
      image: "bubble-blue.png" COMP;
   }

   group {
      name: "example_group";

      script {
         public message(Msg_Type:type, id, ...) {
            if ((id == ID_IMPULSE) && (type == MSG_FLOAT_SET)) {
               new Float:x, Float:y, Float:z;
               new n = numargs();
               if (n < 5) return;
               x = getfarg(2);
               y = getfarg(3);
               z = getfarg(4);
               physics_impulse(PART:"blue_circle", x, y, z);
            }
            else if ((id == ID_TORQUE_IMPULSE) && (type == MSG_FLOAT_SET)) {
               new Float:x, Float:y, Float:z;
               new n = numargs();
               if (n < 5) return;
               x = getfarg(2);
               y = getfarg(3);
               z = getfarg(4);
               physics_torque_impulse(PART:"blue_circle", x, y, z);
            }
         }
      }

      parts {
         part {
            name: "background";
            type: RECT;
            physics_body: NONE;
            description {
               state: "default" 0.0;
               color: 255 255 255 255; /* white */
               rel1.relative: 0.0 0.0;
               rel2.relative: 1.0 1.0;
            }
         }

         part {
            name: "blue_circle";
            type: IMAGE;
            physics_body: RIGID_CIRCLE;
            description {
               state: "default" 0.0;
               rel1.relative: 0.35 0.1;
               rel2.relative: 0.55 0.2;
               aspect: 1 1;
               image {
                  normal: "bubble-blue.png";
               }
               physics {
                  restitution: 0.85;
                  friction: 1.0;
               }
            }
         }

         part {
            name: "red_circle";
            type: IMAGE;
            physics_body: RIGID_CIRCLE;
            description {
               state: "default" 0.0;
               color: 255 0 0 255; /* light red */
               rel1.relative: 0.65 0.1;
               rel2.relative: 0.85 0.2;
               aspect: 1 1;
               image {
                  normal: "bubble-blue.png";
               }
               physics {
                  restitution: 0.85;
                  friction: 1.0;
               }
            }
         }

         part {
            name: "floor";
            type: RECT;
            physics_body: BOUNDARY_BOTTOM;
            description {
               state: "default" 0.0;
               visible: 0;
               physics {
                  restitution: 0.6;
                  friction: 1.0;
               }
            }
         }

         part {
            name: "right_wall";
            type: RECT;
            physics_body: BOUNDARY_RIGHT;
            description {
               state: "default" 0.0;
               visible: 0;
               physics {
                  restitution: 0.3;
               }
            }
         }

         part {
            name: "left_wall";
            type: RECT;
            physics_body: BOUNDARY_LEFT;
            description {
               state: "default" 0.0;
               visible: 0;
               physics {
                  restitution: 0.3;
               }
            }
         }

         part {
            name: "roof";
            type: RECT;
            physics_body: BOUNDARY_TOP;
            description {
               state: "default" 0.0;
               visible: 0;
               physics {
                  restitution: 0.2;
               }
            }
         }
      }

      programs {

         program {
            name: "impulse_up";
            signal: "up";
            source: "impulse";
            action: PHYSICS_IMPULSE 0 -300 0;
            target: "blue_circle";
            target: "red_circle";
         }

         program {
            name: "impulse_down";
            signal: "down";
            source: "impulse";
            action: PHYSICS_IMPULSE 0 300 0;
            target: "red_circle";
            target: "blue_circle";
         }

         program {
            name: "impulse_left";
            signal: "left";
            source: "impulse";
            action: PHYSICS_IMPULSE -300 0 0;
            target: "blue_circle";
         }

         program {
            name: "impulse_right";
            signal: "right";
            source: "impulse";
            action: PHYSICS_IMPULSE 300 0 0;
            target: "red_circle";
         }

         program {
            name: "impulse_clockwise";
            signal: "clockwise";
            source: "impulse";
            action: PHYSICS_TORQUE_IMPULSE 0 0 4;
            target: "blue_circle";
         }

         program {
            name: "impulse_counterclockwise";
            signal: "counterclockwise";
            source: "impulse";
            action: PHYSICS_TORQUE_IMPULSE 0 0 -4;
            target: "blue_circle";
         }

      }

   }
}