Patch by Matt McCutchen to prevent division by zero when Tux spawns exactly at a...

[supertux.git] / src / badguy / mrtree.cpp

diff --git a/src/badguy/mrtree.cpp b/src/badguy/mrtree.cpp
index 775c821..3828225 100644 (file)
--- a/src/badguy/mrtree.cpp
+++ b/src/badguy/mrtree.cpp
@@ -20,11 +20,17 @@
 #include <config.h>
 
 #include "mrtree.hpp"
+
 #include "stumpy.hpp"
 #include "poisonivy.hpp"
 #include "random_generator.hpp"
 #include "object/sprite_particle.hpp"
 #include "sector.hpp"
+#include "lisp/writer.hpp"
+#include "object_factory.hpp"
+#include "audio/sound_manager.hpp"
+
+#include <math.h>
 
 static const float WALKSPEED = 100;
 
@@ -37,7 +43,7 @@ MrTree::MrTree(const lisp::Lisp& reader)
   : WalkingBadguy(reader, "images/creatures/mr_tree/mr_tree.sprite","left","right")
 {
   walk_speed = WALKSPEED;
-  max_drop_height = 0;
+  max_drop_height = 16;
   sound_manager->preload("sounds/mr_tree.ogg");
 }
 
@@ -50,7 +56,7 @@ MrTree::write(lisp::Writer& writer)
 }
 
 bool
-MrTree::collision_squished(Player& player)
+MrTree::collision_squished(GameObject& object)
 {
   // replace with Stumpy
   Vector stumpy_pos = get_pos();
@@ -62,7 +68,8 @@ MrTree::collision_squished(Player& player)
 
   // give Feedback
   sound_manager->play("sounds/mr_tree.ogg", get_pos());
-  player.bounce(*this);
+  Player* player = dynamic_cast<Player*>(&object);
+  if (player) player->bounce(*this);
 
   // spawn some particles
   // TODO: provide convenience function in MovingSprite or MovingObject?
@@ -80,7 +87,7 @@ MrTree::collision_squished(Player& player)
   // spawn PoisonIvy
   Vector leaf1_pos = Vector(stumpy_pos.x - POISONIVY_WIDTH - 1, stumpy_pos.y - POISONIVY_Y_OFFSET);
   Rect leaf1_bbox = Rect(leaf1_pos.x, leaf1_pos.y, leaf1_pos.x + POISONIVY_WIDTH, leaf1_pos.y + POISONIVY_HEIGHT);
-  if (Sector::current()->is_free_space(leaf1_bbox)) {
+  if (Sector::current()->is_free_of_movingstatics(leaf1_bbox, this)) {
     PoisonIvy* leaf1 = new PoisonIvy(leaf1_bbox.p1, LEFT);
     leaf1 = leaf1;
     Sector::current()->add_object(leaf1);
@@ -89,7 +96,7 @@ MrTree::collision_squished(Player& player)
   // spawn PoisonIvy
   Vector leaf2_pos = Vector(stumpy_pos.x + sprite->get_current_hitbox_width() + 1, stumpy_pos.y - POISONIVY_Y_OFFSET);
   Rect leaf2_bbox = Rect(leaf2_pos.x, leaf2_pos.y, leaf2_pos.x + POISONIVY_WIDTH, leaf2_pos.y + POISONIVY_HEIGHT);
-  if (Sector::current()->is_free_space(leaf2_bbox)) {
+  if (Sector::current()->is_free_of_movingstatics(leaf2_bbox, this)) {
     PoisonIvy* leaf2 = new PoisonIvy(leaf2_bbox.p1, RIGHT);
     leaf2 = leaf2;
     Sector::current()->add_object(leaf2);