diff gamesceneview.py @ 0:7a89ea5404b1

Initial commit of parpg-core.
author M. George Hansen <technopolitica@gmail.com>
date Sat, 14 May 2011 01:12:35 -0700
parents
children 98f26f7636d8
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gamesceneview.py	Sat May 14 01:12:35 2011 -0700
@@ -0,0 +1,159 @@
+#   This file is part of PARPG.
+
+#   PARPG is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+
+#   PARPG is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+
+#   You should have received a copy of the GNU General Public License
+#   along with PARPG.  If not, see <http://www.gnu.org/licenses/>.
+
+from sounds import SoundEngine
+from viewbase import ViewBase
+from fife import fife
+
+class GameSceneView(ViewBase):
+    """GameSceneView is responsible for drawing the scene"""
+    def __init__(self, engine, model):
+        """Constructor for GameSceneView
+           @param engine: A fife.Engine instance
+           @type engine: fife.Engine
+           @param model: a script.GameModel instance
+           @type model: script.GameModel 
+           """
+        super(GameSceneView, self).__init__(engine, model)
+
+        # init the sound
+        self.sounds = SoundEngine(engine)
+
+        self.hud = None        
+
+        # The current highlighted object
+        self.highlight_obj = None
+     
+        # faded objects in top layer
+        self.faded_objects = set()
+
+    def displayObjectText(self, obj_id, text, time=1000):
+        """Display on screen the text of the object over the object.
+           @type obj_id: id of fife.instance
+           @param obj: id of object to draw over
+           @type text: String
+           @param text: text to display over object
+           @return: None"""
+        try:
+            if obj_id:
+                obj = self.model.active_map.agent_layer.getInstance(obj_id)
+            else:
+                obj = None
+        except RuntimeError as error:
+            if error.args[0].split(',')[0].strip() == "_[NotFound]_":
+                obj = None
+            else:
+                raise
+        if obj:
+            obj.say(str(text), time)
+
+    def onWalk(self, click):
+        """Callback sample for the context menu."""
+        self.hud.hideContainer()
+        self.model.game_state.player_character.run(click)
+
+    def refreshTopLayerTransparencies(self):
+        """Fade or unfade TopLayer instances if the PlayerCharacter 
+        is under them."""
+        if not self.model.active_map:
+            return
+
+        # get the PlayerCharacter's screen coordinates
+        camera = self.model.active_map.cameras[self.model.active_map.my_cam_id]
+        point = self.model.game_state.player_character.\
+                                        behaviour.agent.getLocation()
+        scr_coords = camera.toScreenCoordinates(point.getMapCoordinates())
+
+        # find all instances on TopLayer that fall on those coordinates
+        instances = camera.getMatchingInstances(scr_coords,
+                        self.model.active_map.top_layer)
+        instance_ids = [ instance.getId() for instance in instances ]
+        faded_objects = self.faded_objects
+
+        # fade instances
+        for instance_id in instance_ids:
+            if instance_id not in faded_objects:
+                faded_objects.add(instance_id)
+                self.model.active_map.top_layer.getInstance(instance_id).\
+                        get2dGfxVisual().setTransparency(128)
+
+        # unfade previously faded instances
+        for instance_id in faded_objects.copy():
+            if instance_id not in instance_ids:
+                faded_objects.remove(instance_id)
+                self.model.active_map.top_layer.getInstance(instance_id).\
+                        get2dGfxVisual().setTransparency(0)
+
+
+    #def removeHighlight(self):
+        
+    
+    def highlightFrontObject(self, mouse_coords):
+        """Highlights the object that is at the 
+        current mouse coordinates"""        
+        if not self.model.active_map:
+            return
+        if mouse_coords:
+            front_obj = self.model.getObjectAtCoords(mouse_coords)
+            if front_obj != None:
+                if self.highlight_obj == None \
+                                    or front_obj.getId() != \
+                                    self.highlight_obj:
+                    if self.model.game_state.hasObject(front_obj.getId()):
+                        self.displayObjectText(self.highlight_obj, "")
+                    self.model.active_map.outline_renderer.removeAllOutlines()
+                    self.highlight_obj = front_obj.getId()
+                    self.model.active_map.outline_renderer.addOutlined(
+                                                    front_obj, 
+                                                    0,
+                                                    137, 255, 2)
+                    # get the text
+                    item = self.model.objectActive(self.highlight_obj)
+                    if item is not None:
+                        self.displayObjectText(self.highlight_obj, 
+                                                    item.name)
+            else:
+                self.model.active_map.outline_renderer.removeAllOutlines()
+                self.highlight_obj = None  
+           
+
+    def moveCamera(self, direction):
+        """Move the camera in the given direction.
+        @type direction: list of two integers
+        @param direction: the two integers can be 1, -1, or 0
+        @return: None """  
+        
+        if 'cameras' in dir(self.model.active_map):
+            cam = self.model.active_map.cameras[self.model.active_map.my_cam_id]
+            location = cam.getLocation()
+            position = location.getMapCoordinates()
+            
+            #how many pixls to move by each call
+            move_by = 1
+            #create a new DoublePoint3D and add it to position DoublePoint3D
+            new_x, new_y = move_by * direction[0], move_by * direction[1]
+
+            position_offset = fife.DoublePoint3D(int(new_x), int(new_y))
+            position += position_offset
+            
+            #give location the new position
+            location.setMapCoordinates(position)
+
+            #detach the camera from any objects
+            cam.detach()
+            #move the camera to the new location
+            cam.setLocation(location)
+            
+