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circular visualizer progress

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This commit is contained in:
Harrison Deng 2018-02-12 09:41:00 -06:00
parent e939bffc68
commit de38d1c863
2 changed files with 72 additions and 2 deletions
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2
core/src/zero1hd/rhythmbullet/RhythmBullet.java
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@ -41,7 +41,7 @@ public class RhythmBullet extends Game {
public static final int WORLD_WIDTH = 64; public static final int WORLD_WIDTH = 64;
public static final int WORLD_HEIGHT = 48; public static final int WORLD_HEIGHT = 48;
public static final int SPAWN_CIRCLE_RADIUS = 4; public static final int SPAWN_CIRCLE_RADIUS = 4;
public static float pixels_per_unit; public static int pixels_per_unit;
private boolean initComplete = false; private boolean initComplete = false;
private boolean resizing; private boolean resizing;
private int screenWidth, screenHeight; private int screenWidth, screenHeight;

70
core/src/zero1hd/rhythmbullet/graphics/meshes/CircularVisualizerMesh.java
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@ -1,5 +1,75 @@
package zero1hd.rhythmbullet.graphics.meshes; package zero1hd.rhythmbullet.graphics.meshes;
import zero1hd.rhythmbullet.RhythmBullet;
public class CircularVisualizerMesh { public class CircularVisualizerMesh {
private int x, y;
private int componentCount = 2 + 4;
private float[] verts;
public CircularVisualizerMesh() {
}
public void applyPositionChanges() {
verts = new float[calculateVertices(x, y, RhythmBullet.pixels_per_unit) * componentCount];
}
private void createCircleVertices(int centerX, int centerY, int radius) {
int x = radius - 1;
int y = 0;
int dx = 1;
int dy = 1;
int err = dx - (radius << 1);
while (x >= y)
{
putVertex(centerX + x, centerY + y);
putVertex(centerX + y, centerY + x);
putVertex(centerX - y, centerY + x);
putVertex(centerX - x, centerY + y);
putVertex(centerX - x, centerY - y);
putVertex(centerX - y, centerY - x);
putVertex(centerX + y, centerY - x);
putVertex(centerX + x, centerY - y);
if (err <= 0) {
y++;
err += dy;
dy += 2;
} else {
x--;
dx += 2;
err += dx - (radius << 1);
}
}
}
private int calculateVertices(int centerX, int centerY, int radius) {
int x = radius - 1;
int y = 0;
int dx = 1;
int dy = 1;
int err = dx - (radius << 1);
int vertCount = 0;
while (x >= y)
{
vertCount += 8;
if (err <= 0) {
y++;
err += dy;
dy += 2;
} else {
x--;
dx += 2;
err += dx - (radius << 1);
}
}
return vertCount;
}
private void putVertex(int x, int y) {
} }
}