public void point(float x, float y) {
if (stroke) {
// if (strokeWeight > 1) {
line(x, y, x + EPSILON, y + EPSILON);
// } else {
// set((int) screenX(x, y), (int) screenY(x, y), strokeColor);
// }
}
}
public void vertex(float x, float y) {
curveVertexCount = 0;
// float vertex[];
if (vertexCount == vertices.length) {
float temp[][] = new float[vertexCount << 1][VERTEX_FIELD_COUNT];
System.arraycopy(vertices, 0, temp, 0, vertexCount);
vertices = temp;
// message(CHATTER, "allocating more vertices " + vertices.length);
}
// not everyone needs this, but just easier to store rather
// than adding another moving part to the code...
vertices[vertexCount][X] = x;
vertices[vertexCount][Y] = y;
vertexCount++;
switch (shape) {
case POINTS:
point(x, y);
break;
case LINES:
if ((vertexCount % 2) == 0) {
line(vertices[vertexCount - 2][X], vertices[vertexCount - 2][Y], x, y);
}
break;
case TRIANGLES:
if ((vertexCount % 3) == 0) {
triangle(
vertices[vertexCount - 3][X],
vertices[vertexCount - 3][Y],
vertices[vertexCount - 2][X],
vertices[vertexCount - 2][Y],
x,
y);
}
break;
case TRIANGLE_STRIP:
if (vertexCount >= 3) {
triangle(
vertices[vertexCount - 2][X],
vertices[vertexCount - 2][Y],
vertices[vertexCount - 1][X],
vertices[vertexCount - 1][Y],
vertices[vertexCount - 3][X],
vertices[vertexCount - 3][Y]);
}
break;
case TRIANGLE_FAN:
if (vertexCount == 3) {
triangle(vertices[0][X], vertices[0][Y], vertices[1][X], vertices[1][Y], x, y);
} else if (vertexCount > 3) {
gpath = new GeneralPath();
// when vertexCount > 3, draw an un-closed triangle
// for indices 0 (center), previous, current
gpath.moveTo(vertices[0][X], vertices[0][Y]);
gpath.lineTo(vertices[vertexCount - 2][X], vertices[vertexCount - 2][Y]);
gpath.lineTo(x, y);
drawShape(gpath);
}
break;
case QUADS:
if ((vertexCount % 4) == 0) {
quad(
vertices[vertexCount - 4][X],
vertices[vertexCount - 4][Y],
vertices[vertexCount - 3][X],
vertices[vertexCount - 3][Y],
vertices[vertexCount - 2][X],
vertices[vertexCount - 2][Y],
x,
y);
}
break;
case QUAD_STRIP:
// 0---2---4
// | | |
// 1---3---5
if ((vertexCount >= 4) && ((vertexCount % 2) == 0)) {
quad(
vertices[vertexCount - 4][X],
vertices[vertexCount - 4][Y],
vertices[vertexCount - 2][X],
vertices[vertexCount - 2][Y],
x,
y,
vertices[vertexCount - 3][X],
vertices[vertexCount - 3][Y]);
}
break;
case POLYGON:
if (gpath == null) {
gpath = new GeneralPath();
gpath.moveTo(x, y);
} else if (breakShape) {
gpath.moveTo(x, y);
breakShape = false;
} else {
gpath.lineTo(x, y);
}
break;
}
}
