isometric tilemap rendering added

CONTROLS.md

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+# OpenIsopix Controls
+
+## Camera Controls
+- **Arrow Keys** - Move camera around the world
+- **Q/E** - Rotate camera view (4 directions: N, E, S, W)
+- **P** - Change pitch angle (cycle through 30°, 45°, 60°, 90°)
+- **Mouse Wheel / +/-** - Zoom in/out
+
+## Block Selection (1-5 Keys)
+- **1** - Select Grass block
+- **2** - Select Stone block
+- **3** - Select Water block
+- **4** - Select Wood block
+- **5** - Select Soil block
+
+## Interaction Modes (Space to Cycle)
+- **SELECT Mode** - Click blocks to query/select
+- **PLACE Mode** - Click to place selected block type
+- **REMOVE Mode** - Click to remove blocks
+- **QUERY Mode** - Click to get block information
+
+## Mouse Actions
+- **Left Click** - Place block (when in PLACE mode) or Select/Query
+- **Right Click** - Remove block (when in REMOVE mode)
+
+## Special Features
+- **F** - Toggle Fog of War (shows/hides explored areas)
+
+## Tips
+1. Use **Space** to cycle between interaction modes
+2. Select block type with **1-5** before placing
+3. Right-click to quickly remove unwanted blocks
+4. Use **Q/E** to rotate and view from different angles

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