things on the seesaw platforms move when the seesaw moves

Author: DragoniteSpam

datafiles/meshes.derg

@@ -30,6 +30,9 @@ self.matrix_block_left = undefined;
 self.matrix_block_right = undefined;
 
 self.CalculateAllPositions = function() {
+    var on_left = obj_game.collision.CheckObject(self.cobject_activation_left);
+    var on_right = obj_game.collision.CheckObject(self.cobject_activation_right);
+    
     var base_position_matrix = matrix_build(self.x, self.y, self.z, 0, 0, 0, 1, 1, 1);
     self.matrix_base = matrix_multiply(self.rotation_mat, base_position_matrix);
 
@@ -44,20 +47,46 @@ self.CalculateAllPositions = function() {
     var block_left_position_object = matrix_transform_vertex(seesaw_transform_matrix, block_left_position.x, block_left_position.y, block_left_position.z);
     var block_left_transform_matrix = matrix_build(block_left_position_object[0], block_left_position_object[1], block_left_position_object[2], 0, 0, 0, 1, 1, 1);
     var block_left_final_position_matrix = matrix_multiply(base_position_matrix, block_left_transform_matrix);
+    var block_left_previous_y = is_array(self.matrix_block_left) ? self.matrix_block_left[13] : 0;
     self.matrix_block_left = matrix_multiply(self.rotation_mat, block_left_final_position_matrix);
+    var block_left_delta_y = self.matrix_block_left[13] - block_left_previous_y;
 
     var block_right_position = array_search_with_name(self.mesh_seesaw.collision_shapes, "#AnchorRight").position;
     var block_right_position_object = matrix_transform_vertex(seesaw_transform_matrix, block_right_position.x, block_right_position.y, block_right_position.z);
     var block_right_transform_matrix = matrix_build(block_right_position_object[0], block_right_position_object[1], block_right_position_object[2], 0, 0, 0, 1, 1, 1);
     var block_right_final_position_matrix = matrix_multiply(base_position_matrix, block_right_transform_matrix);
+    var block_right_previous_y = is_array(self.matrix_block_right) ? self.matrix_block_right[13] : 0;
     self.matrix_block_right = matrix_multiply(self.rotation_mat, block_right_final_position_matrix);
+    var block_right_delta_y = self.matrix_block_right[13] - block_right_previous_y;
 
     col_object_update_position(self.cobject_seesaw, self.matrix_seesaw);
     col_object_update_position(self.cobject_block_left, self.matrix_block_left);
     col_object_update_position(self.cobject_block_right, self.matrix_block_right);
 
     col_object_update_position(self.cobject_activation_left, self.matrix_block_left);
     col_object_update_position(self.cobject_activation_right, self.matrix_block_right);
+    
+    if (on_left) {
+        on_left = on_left.reference;
+        if (on_left.object_index != obj_npc && !object_is_ancestor(on_left.object_index, obj_npc)) {
+            on_left.y += block_left_delta_y;
+            on_left.UpdateCollisionPositions();
+        } else {
+            on_left.cobject.shape.position.y += block_left_delta_y;
+            on_left.y += block_left_delta_y;
+        }
+    }
+    
+    if (on_right) {
+        on_right = on_right.reference;
+        if (on_right.object_index != obj_npc && !object_is_ancestor(on_right.object_index, obj_npc)) {
+            on_right.y += block_right_delta_y;
+            on_right.UpdateCollisionPositions();
+        } else {
+            on_right.cobject.shape.position.y += block_right_delta_y;
+            on_right.y += block_right_delta_y;
+        }
+    }
 };
 
 self.HandleActivation = function() {

objects/obj_3d_seesaw/Create_0.gml

@@ -11,12 +11,6 @@ self.state = new SnowState("idle")
         }
 	})
 	.add("falling", {
-        enter: function() {
-            show_debug_message("block is now falling")
-        },
-        leave: function() {
-            show_debug_message("block has landed")
-        },
         update: function() {
             // properly do this later
             static grav = 9;

objects/obj_3d_spell_block/Create_0.gml

@@ -88,6 +88,9 @@ var map = new UnityMapImport("test.place", self.meshes);
 var seesaw = instance_create_depth(100, 0, -300, obj_3d_seesaw);
 seesaw.UpdateCollisionPositions();
 
+var seesaw = instance_create_depth(100, 0, -450, obj_3d_seesaw);
+seesaw.UpdateCollisionPositions();
+
 var block = instance_create_depth(228, 100, -300, obj_3d_spell_block);
 block.SetMesh(self.meshes.block);
 block.UpdateCollisionPositions();

objects/obj_game/Create_0.gml

@@ -160,7 +160,7 @@ self.cobject_climb = new ColObject(climb_shape, self.id, ECollisionMasks.NONE, E
 var player_activator_collision = array_search_with_name(player_data.collision_shapes, "#Activator");
 
 original_position = new Vector3(player_activator_collision.position.x, player_activator_collision.position.y, player_activator_collision.position.z);
-var activator_shape = new ColSphere(original_position, player_climb_collision.radius);
+var activator_shape = new ColAABB(original_position, player_activator_collision.scale);
 activator_shape.original_position = original_position.Mul(1);
 self.cobject_activator = new ColObject(activator_shape, self.id, ECollisionMasks.ACTIVATOR, ECollisionMasks.NONE);
 #endregion