field object data

asm/macros.s

@@ -28,3 +28,64 @@
 	.macro zero_fill count
 	.fill \count
 	.endm
+
+; Berry trees have a table defining the palette slot used for each of their 5
+; stages. However, the first 2 stages always use the same slots regardless of
+; the type of tree and the slots of the last 3 stages always equal each other.
+	.macro berry_tree_palette_slot_table slot
+	.byte 3, 4, \slot, \slot, \slot
+	.endm
+
+	.macro sprite_oam x, y, priority, tile_num_offset, size
+	.byte \x
+	.byte \y
+	.2byte ((\priority) << 14) | ((\tile_num_offset) << 4) | SPRITE_SIZE_\size
+	.endm
+
+	.macro obj_image_anim_frame pic_id, duration, flags = 0
+	.2byte \pic_id
+	.byte (\flags) | (\duration)
+	.byte 0 ; padding
+	.endm
+
+	.macro obj_image_anim_loop count
+	.2byte 0xfffd
+	.byte \count
+	.byte 0 ; padding
+	.endm
+
+	.macro obj_image_anim_jump target_index
+	.2byte 0xfffe
+	.byte \target_index
+	.byte 0 ; padding
+	.endm
+
+	.macro obj_image_anim_end
+	.2byte 0xffff
+	.2byte 0 ; padding
+	.endm
+
+	.macro obj_rot_scal_anim_frame delta_x_scale, delta_y_scale, delta_angle, duration
+	.2byte \delta_x_scale
+	.2byte \delta_y_scale
+	.byte \delta_angle
+	.byte \duration
+	.2byte 0 ; padding
+	.endm
+
+	.macro obj_rot_scal_anim_loop count
+	.2byte 0x7ffd
+	.2byte \count
+	.4byte 0 ; padding
+	.endm
+
+	.macro obj_rot_scal_anim_jump target_index
+	.2byte 0x7ffe
+	.2byte \target_index
+	.4byte 0 ; padding
+	.endm
+
+	.macro obj_rot_scal_anim_end
+	.2byte 0x7fff
+	.fill 6 ; padding
+	.endm