[152] | 1 | package solarsim.renderer; |
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| 2 | |
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| 3 | import java.awt.Canvas; |
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| 4 | import java.awt.Graphics; |
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| 5 | import java.util.LinkedList; |
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| 6 | import solarsim.common.Particle; |
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| 7 | import solarsim.common.State; |
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| 8 | import solarsim.common.Vector; |
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| 9 | |
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| 10 | class MyCanvas extends Canvas { |
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| 11 | |
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| 12 | private final LinkedList<State> states; |
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| 13 | MyCanvas() { |
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| 14 | super(); |
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| 15 | this.setSize(800, 600); |
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| 16 | states = new LinkedList<State>(); |
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| 17 | } |
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| 18 | |
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| 19 | void drawState(State s) { |
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| 20 | synchronized( states ) { |
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| 21 | if( states.size() == RenderConstants.MAX_STATES ) { |
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| 22 | states.removeLast(); |
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| 23 | } |
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| 24 | states.addFirst(s); |
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| 25 | } |
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| 26 | this.repaint(); |
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| 27 | } |
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| 28 | |
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| 29 | @Override |
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| 30 | public void paint(Graphics g) { |
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| 31 | g.translate(400, 300); |
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| 32 | g.drawLine(-300, -300, 300, 300); |
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| 33 | g.drawLine(-300, 300, 300, -300); |
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| 34 | g.drawLine(-300, -300, -300, 300); |
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| 35 | g.drawLine(300, -300, 300, 300); |
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| 36 | g.drawLine(-400, 0, 400, 0); |
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| 37 | g.drawLine(0, -300, 0, 300); |
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| 38 | synchronized(states) { |
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| 39 | for( State s : states ) { |
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| 40 | for( Particle p : s.getParticles() ) { |
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| 41 | Vector r = p.getPosition(); |
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| 42 | int dx = +(int)(r.x/RenderConstants.SCALE_FACTOR*300); |
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| 43 | int dy = -(int)(r.y/RenderConstants.SCALE_FACTOR*300); |
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| 44 | g.translate(dx, dy); |
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| 45 | g.fillOval(-1, -1, 3, 3); |
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| 46 | g.translate(-dx, -dy); |
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| 47 | } |
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| 48 | } |
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| 49 | } |
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| 50 | g.translate(-400, -300); |
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| 51 | } |
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| 52 | |
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| 53 | } |
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