png支持

examples/square/config.ceg

@@ -2,29 +2,22 @@
     "window": {
         "width": 800,
         "height": 600,
-        "title": "OpenCGE - Square Example"
+        "title": "Boundard - Square Example"
     },
 
     "input": [
         { "action": "quit", "keys": ["Escape"] },
-        { "action": "reset", "mouse_buttons": ["Left"] },
+        { "action": "switch_scene", "keys": ["Tab"] },
         { "action": "move_left", "keys": ["Left"] },
         { "action": "move_right", "keys": ["Right"] },
         { "action": "move_up", "keys": ["Up"] },
         { "action": "move_down", "keys": ["Down"] }
     ],
 
-    "actors": [
-        {
-            "name": "square",
-            "init": "square_init",
-            "tick": "square_tick",
-            "position": { "x": 0, "y": 0 },
-            "facing": { "x": 1, "y": 0 },
-            "mesh": {
-                "shape": "quad",
-                "color": { "r": 0.2, "g": 0.8, "b": 0.9, "a": 1.0 }
-            }
-        }
+    "start_scene": "square",
+
+    "scenes": [
+        { "name": "square", "path": "scenes/square.json" },
+        { "name": "square_alt", "path": "scenes/square_alt.json" }
     ]
 }

examples/square/main.cpp

@@ -38,6 +38,47 @@ void register_square_behaviors() {
             position[0] += input.get_axis("move_left", "move_right") * move_speed * dt;
             position[1] += input.get_axis("move_up", "move_down") * move_speed * dt;
             actor.set_position(position);
+
+            if (input.is_action_just_pressed("switch_scene")) {
+                boundard::Game::getInstance().switch_scene("square_alt");
+            }
+        });
+
+    behaviors.register_init("square_alt_init", [](boundard::Actor& actor) {
+        actor.set_position({0.0F, 0.0F});
+        actor.set_facing({0.0F, 1.0F});
+        if (actor.mesh() != nullptr) {
+            actor.mesh()->set_color({0.9F, 0.3F, 0.2F, 1.0F});
+        }
+    });
+
+    behaviors.register_tick(
+        "square_alt_tick",
+        [](boundard::Actor& actor, float dt, const boundard::render::InputMap& input) {
+            const float t = actor.age();
+            actor.set_facing({
+                std::sin(t * 1.3F),
+                std::cos(t * 1.3F),
+            });
+
+            if (actor.mesh() != nullptr) {
+                actor.mesh()->set_color({
+                    0.5F + 0.5F * std::sin(t * 2.0F + 4.189F),
+                    0.5F + 0.5F * std::sin(t * 2.0F),
+                    0.5F + 0.5F * std::sin(t * 2.0F + 2.094F),
+                    1.0F,
+                });
+            }
+
+            auto position = actor.position();
+            const float move_speed = 0.7F;
+            position[0] += input.get_axis("move_left", "move_right") * move_speed * dt;
+            position[1] += input.get_axis("move_up", "move_down") * move_speed * dt;
+            actor.set_position(position);
+
+            if (input.is_action_just_pressed("switch_scene")) {
+                boundard::Game::getInstance().switch_scene("square");
+            }
         });
 }
 

examples/square/scenes/square.json

@@ -0,0 +1,21 @@
+{
+  "actors": [
+    {
+      "name": "square",
+      "init": "square_init",
+      "tick": "square_tick",
+      "position": {
+        "x": 0,
+        "y": 0
+      },
+      "facing": {
+        "x": 1,
+        "y": 0
+      },
+      "mesh": {
+        "shape": "quad",
+        "texture": "Dank.png"
+      }
+    }
+  ]
+}

examples/square/scenes/square_alt.json

@@ -0,0 +1,15 @@
+{
+    "actors": [
+        {
+            "name": "square_alt",
+            "init": "square_alt_init",
+            "tick": "square_alt_tick",
+            "position": { "x": 0, "y": 0 },
+            "facing": { "x": 0, "y": 1 },
+            "mesh": {
+                "shape": "quad",
+                "color": { "r": 0.9, "g": 0.3, "b": 0.2, "a": 1.0 }
+            }
+        }
+    ]
+}