83 lines
2.3 KiB
C#
83 lines
2.3 KiB
C#
using System.Collections.Generic;
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using System;
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using System.Linq;
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namespace OpenRa.Game.Graphics
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{
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class Viewport
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{
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readonly float2 size;
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readonly float2 mapSize;
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float2 scrollPosition;
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readonly Renderer renderer;
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public float2 Location { get { return scrollPosition; } }
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public float2 Size { get { return size; } }
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public int Width { get { return (int)size.X; } }
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public int Height { get { return (int)size.Y; } }
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public Cursor cursor = Cursor.Move;
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SpriteRenderer cursorRenderer;
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int2 mousePos;
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float cursorFrame = 0f;
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public void Scroll(float2 delta)
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{
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scrollPosition = ( scrollPosition + delta ).Constrain( float2.Zero, mapSize );
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}
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public Viewport(float2 size, float2 mapSize, Renderer renderer)
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{
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this.size = size;
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this.mapSize = Game.CellSize * mapSize - size + new float2(128, 0);
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if( this.mapSize.X < 0 ) this.mapSize.X = 0;
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if( this.mapSize.Y < 0 ) this.mapSize.Y = 0;
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this.renderer = renderer;
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cursorRenderer = new SpriteRenderer(renderer, true);
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}
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List<Region> regions = new List<Region>();
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public void AddRegion(Region r) { regions.Add(r); }
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public void DrawRegions()
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{
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float2 r1 = new float2(2, -2) / Size;
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float2 r2 = new float2(-1, 1);
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renderer.BeginFrame(r1, r2, scrollPosition);
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foreach (Region region in regions)
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region.Draw(renderer);
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cursorFrame += 0.01f;
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cursorRenderer.DrawSprite(cursor.GetSprite((int)cursorFrame), mousePos + Location - cursor.GetHotspot(), 0);
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cursorRenderer.Flush();
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renderer.EndFrame();
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}
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Region dragRegion = null;
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public void DispatchMouseInput(MouseInput mi)
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{
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if (mi.Event == MouseInputEvent.Move)
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mousePos = mi.Location;
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if (dragRegion != null) {
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dragRegion.HandleMouseInput( mi );
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if (mi.Event == MouseInputEvent.Up) dragRegion = null;
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return;
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}
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dragRegion = regions.FirstOrDefault(r => r.Contains(mi.Location) && r.HandleMouseInput(mi));
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if (mi.Event != MouseInputEvent.Down)
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dragRegion = null;
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}
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public float2 ViewToWorld(MouseInput mi)
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{
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return (1 / 24.0f) * (new float2(mi.Location.X, mi.Location.Y) + Location);
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}
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}
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}
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