adds cylindrical billboarding, enables it for trees.

data/behavior_data.c

@@ -219,6 +219,9 @@
 #define BILLBOARD() \
     BC_B(0x21)
 
+#define CYLBOARD() \
+    BC_B(0x38)
+
 // Hides the current object.
 #define HIDE() \
     BC_B(0x22)
@@ -3181,6 +3184,7 @@ const BehaviorScript bhvFloorTrapInCastle[] = {
 const BehaviorScript bhvTree[] = {
     BEGIN(OBJ_LIST_POLELIKE),
     BILLBOARD(),
+    CYLBOARD(),
     OR_INT(oFlags, OBJ_FLAG_UPDATE_GFX_POS_AND_ANGLE),
     SET_INT(oInteractType, INTERACT_POLE),
     SET_HITBOX(/*Radius*/ 80, /*Height*/ 500),
@@ -6105,5 +6109,3 @@ const BehaviorScript bhvIntroScene[] = {
         CALL_NATIVE(bhv_intro_scene_loop),
     END_LOOP(),
 };
-
-

src/engine/behavior_script.c

@@ -138,6 +138,14 @@ static s32 bhv_cmd_billboard(void) {
     return BHV_PROC_CONTINUE;
 }
 
+// Command 0x
+static s32 bhv_cmd_cylboard(void) {
+    gCurrentObject->header.gfx.node.flags |= GRAPH_RENDER_CYLBOARD;
+
+    gCurBhvCommand++;
+    return BHV_PROC_CONTINUE;
+}
+
 // Command 0x1B: Sets the current model ID of the object.
 // Usage: SET_MODEL(modelID)
 static s32 bhv_cmd_set_model(void) {
@@ -842,62 +850,63 @@ void stub_behavior_script_2(void) {
 
 typedef s32 (*BhvCommandProc)(void);
 static BhvCommandProc BehaviorCmdTable[] = {
-    bhv_cmd_begin,
-    bhv_cmd_delay,
-    bhv_cmd_call,
-    bhv_cmd_return,
-    bhv_cmd_goto,
-    bhv_cmd_begin_repeat,
-    bhv_cmd_end_repeat,
-    bhv_cmd_end_repeat_continue,
-    bhv_cmd_begin_loop,
-    bhv_cmd_end_loop,
-    bhv_cmd_break,
-    bhv_cmd_break_unused,
-    bhv_cmd_call_native,
-    bhv_cmd_add_float,
-    bhv_cmd_set_float,
-    bhv_cmd_add_int,
-    bhv_cmd_set_int,
-    bhv_cmd_or_int,
-    bhv_cmd_bit_clear,
-    bhv_cmd_set_int_rand_rshift,
-    bhv_cmd_set_random_float,
-    bhv_cmd_set_random_int,
-    bhv_cmd_add_random_float,
-    bhv_cmd_add_int_rand_rshift,
-    bhv_cmd_nop_1,
-    bhv_cmd_nop_2,
-    bhv_cmd_nop_3,
-    bhv_cmd_set_model,
-    bhv_cmd_spawn_child,
-    bhv_cmd_deactivate,
-    bhv_cmd_drop_to_floor,
-    bhv_cmd_sum_float,
-    bhv_cmd_sum_int,
-    bhv_cmd_billboard,
-    bhv_cmd_hide,
-    bhv_cmd_set_hitbox,
-    bhv_cmd_nop_4,
-    bhv_cmd_delay_var,
-    bhv_cmd_begin_repeat_unused,
-    bhv_cmd_load_animations,
-    bhv_cmd_animate,
-    bhv_cmd_spawn_child_with_param,
-    bhv_cmd_load_collision_data,
-    bhv_cmd_set_hitbox_with_offset,
-    bhv_cmd_spawn_obj,
-    bhv_cmd_set_home,
-    bhv_cmd_set_hurtbox,
-    bhv_cmd_set_interact_type,
-    bhv_cmd_set_obj_physics,
-    bhv_cmd_set_interact_subtype,
-    bhv_cmd_scale,
-    bhv_cmd_parent_bit_clear,
-    bhv_cmd_animate_texture,
-    bhv_cmd_disable_rendering,
-    bhv_cmd_set_int_unused,
-    bhv_cmd_spawn_water_droplet,
+    bhv_cmd_begin, //00
+    bhv_cmd_delay, //01
+    bhv_cmd_call,  //02
+    bhv_cmd_return, //03
+    bhv_cmd_goto, //04
+    bhv_cmd_begin_repeat, //05
+    bhv_cmd_end_repeat, //06
+    bhv_cmd_end_repeat_continue, //07
+    bhv_cmd_begin_loop, //08
+    bhv_cmd_end_loop, //09
+    bhv_cmd_break, //0A
+    bhv_cmd_break_unused, //0B
+    bhv_cmd_call_native, //0C
+    bhv_cmd_add_float, //0D
+    bhv_cmd_set_float, //0E
+    bhv_cmd_add_int, //0F
+    bhv_cmd_set_int, //10
+    bhv_cmd_or_int, //11
+    bhv_cmd_bit_clear, //12
+    bhv_cmd_set_int_rand_rshift, //13
+    bhv_cmd_set_random_float, //14
+    bhv_cmd_set_random_int, //15
+    bhv_cmd_add_random_float, //16
+    bhv_cmd_add_int_rand_rshift, //17
+    bhv_cmd_nop_1, //18
+    bhv_cmd_nop_2, //19
+    bhv_cmd_nop_3, //1A
+    bhv_cmd_set_model, //1B
+    bhv_cmd_spawn_child, //1C
+    bhv_cmd_deactivate, //1D
+    bhv_cmd_drop_to_floor, //1E
+    bhv_cmd_sum_float, //1F
+    bhv_cmd_sum_int, //20
+    bhv_cmd_billboard, //21
+    bhv_cmd_hide, //22
+    bhv_cmd_set_hitbox, //23
+    bhv_cmd_nop_4, //24
+    bhv_cmd_delay_var, //25
+    bhv_cmd_begin_repeat_unused, //26
+    bhv_cmd_load_animations, //27
+    bhv_cmd_animate, //28
+    bhv_cmd_spawn_child_with_param, //29
+    bhv_cmd_load_collision_data, //2A
+    bhv_cmd_set_hitbox_with_offset, //2B
+    bhv_cmd_spawn_obj, //2C
+    bhv_cmd_set_home, //2D
+    bhv_cmd_set_hurtbox, //2E
+    bhv_cmd_set_interact_type, //2F
+    bhv_cmd_set_obj_physics, //30
+    bhv_cmd_set_interact_subtype, //31
+    bhv_cmd_scale, //32
+    bhv_cmd_parent_bit_clear, //33
+    bhv_cmd_animate_texture, //34
+    bhv_cmd_disable_rendering, //35
+    bhv_cmd_set_int_unused, //36
+    bhv_cmd_spawn_water_droplet, //37
+    bhv_cmd_cylboard //38
 };
 
 // Execute the behavior script of the current object, process the object flags, and other miscellaneous code for updating objects.

src/engine/graph_node.h

@@ -30,6 +30,7 @@ extern Vec3s gVec3sOne;
 #define GRAPH_RENDER_Z_BUFFER       (1 << 3)
 #define GRAPH_RENDER_INVISIBLE      (1 << 4)
 #define GRAPH_RENDER_HAS_ANIMATION  (1 << 5)
+#define GRAPH_RENDER_CYLBOARD       (1 << 6)
 
 // Whether the node type has a function pointer of type GraphNodeFunc
 #define GRAPH_NODE_TYPE_FUNCTIONAL            0x100

src/engine/math_util.c

@@ -377,6 +377,26 @@ void mtxf_billboard(Mat4 dest, Mat4 mtx, Vec3f position, s16 angle) {
     dest[3][3] = 1;
 }
 
+void mtxf_cylboard(Mat4 dest, Mat4 mtx, Vec3f position, s16 angle) { //straight up mtxf_billboard but minus the dest[1][n] lines. transform for cylindrical billboards
+    dest[0][0] = coss(angle);
+    dest[0][1] = sins(angle);
+    dest[0][2] = 0;
+    dest[0][3] = 0;
+
+    dest[2][0] = 0;
+    dest[2][1] = 0;
+    dest[2][2] = 1;
+    dest[2][3] = 0;
+
+    dest[3][0] =
+        mtx[0][0] * position[0] + mtx[1][0] * position[1] + mtx[2][0] * position[2] + mtx[3][0];
+    dest[3][1] =
+        mtx[0][1] * position[0] + mtx[1][1] * position[1] + mtx[2][1] * position[2] + mtx[3][1];
+    dest[3][2] =
+        mtx[0][2] * position[0] + mtx[1][2] * position[1] + mtx[2][2] * position[2] + mtx[3][2];
+    dest[3][3] = 1;
+}
+
 /**
  * Set 'dest' to a transformation matrix that aligns an object with the terrain
  * based on the normal. Used for enemies.

src/engine/math_util.h

@@ -56,6 +56,7 @@ void mtxf_lookat(f32 mtx[4][4], Vec3f b, Vec3f c, s16 d);
 void mtxf_rotate_zxy_and_translate(f32 mtx[4][4], Vec3f b, Vec3s c);
 void mtxf_rotate_xyz_and_translate(f32 mtx[4][4], Vec3f b, Vec3s c);
 void mtxf_billboard(f32 mtx1[4][4], f32 mtx2[4][4], Vec3f c, s16 d);
+void mtxf_cylboard(f32 mtx1[4][4], f32 mtx2[4][4], Vec3f c, s16 d);
 void mtxf_align_terrain_normal(f32 mtx[4][4], Vec3f b, Vec3f c, s16 d);
 void mtxf_align_terrain_triangle(f32 mtx[4][4], Vec3f b, s16 c, f32 d);
 void mtxf_mul(f32 dest[4][4], f32 a[4][4], f32 b[4][4]);

src/game/behaviors/cannon.inc.c

@@ -17,9 +17,11 @@ void opened_cannon_act_0(void) {
         cur_obj_enable_rendering();
         cur_obj_become_tangible();
     }
-    if (o->oDistanceToMario < 500.0f) {
     cur_obj_become_tangible();
     cur_obj_enable_rendering();
+    if (o->oDistanceToMario < 500.0f) {
+        //cur_obj_become_tangible();
+        //cur_obj_enable_rendering();
         if (o->oInteractStatus & INT_STATUS_INTERACTED
             && (!(o->oInteractStatus
                   & INT_STATUS_TOUCHED_BOB_OMB))) // bob-omb explodes when it gets into a cannon
@@ -30,8 +32,8 @@ void opened_cannon_act_0(void) {
         } else
             o->oInteractStatus = 0;
     } else {
-        cur_obj_become_intangible();
-        cur_obj_disable_rendering();
+        //cur_obj_become_intangible();
+        //cur_obj_disable_rendering();
         o->oCannonUnk10C = 0;
     }
 }

src/game/object_helpers.c

@@ -1595,6 +1595,10 @@ void obj_set_billboard(struct Object *obj) {
     obj->header.gfx.node.flags |= GRAPH_RENDER_BILLBOARD;
 }
 
+void obj_set_cylboard(struct Object *obj) {
+    obj->header.gfx.node.flags |= GRAPH_RENDER_CYLBOARD;
+}
+
 void cur_obj_set_hitbox_radius_and_height(f32 radius, f32 height) {
     o->hitboxRadius = radius;
     o->hitboxHeight = height;

src/game/object_helpers.h

@@ -292,6 +292,7 @@ extern void cur_obj_shake_y(f32);
 void cur_obj_start_cam_event(struct Object *obj, s32 cameraEvent);
 // extern ? set_mario_interact_hoot_if_in_range(?);
 void obj_set_billboard(struct Object *a0);
+void obj_set_cylboard(struct Object *a0);
 void cur_obj_set_hitbox_radius_and_height(f32,f32);
 void cur_obj_set_hurtbox_radius_and_height(f32,f32);
 // extern ? obj_spawn_loot_coins(?);

src/game/rendering_graph_node.c

@@ -803,8 +803,13 @@ static void geo_process_object(struct Object *node) {
             mtxf_mul(gMatStack[gMatStackIndex + 1], (void *) node->header.gfx.throwMatrix,
                      gMatStack[gMatStackIndex]);
         } else if (node->header.gfx.node.flags & GRAPH_RENDER_BILLBOARD) {
+            if (node->header.gfx.node.flags & GRAPH_RENDER_CYLBOARD){
+              mtxf_cylboard(gMatStack[gMatStackIndex + 1], gMatStack[gMatStackIndex],
+                             node->header.gfx.pos, gCurGraphNodeCamera->roll);
+            } else {
               mtxf_billboard(gMatStack[gMatStackIndex + 1], gMatStack[gMatStackIndex],
                              node->header.gfx.pos, gCurGraphNodeCamera->roll);
+            }
         } else {
             mtxf_rotate_zxy_and_translate(mtxf, node->header.gfx.pos, node->header.gfx.angle);
             mtxf_mul(gMatStack[gMatStackIndex + 1], mtxf, gMatStack[gMatStackIndex]);