/**
* if the fill colour is non-null, fill the polygon with this colour if the line colour is
* non-null, draw the outline with this colour
*
* @see ass1.spec.GameObject#drawSelf(javax.media.opengl.GL2)
*/
@Override
public void drawSelf(GL2 gl) {
// First draw the filling by using a polygon and looping
if (myFillColour != null) {
gl.glColor4d(myFillColour[0], myFillColour[1], myFillColour[2], myFillColour[3]);
gl.glBegin(GL2.GL_POLYGON);
int numPoints = myPoints.length / 2;
for (int i = 0; i < numPoints; i++) {
gl.glVertex2d(myPoints[i * 2], myPoints[i * 2 + 1]);
}
gl.glEnd();
}
// Now draw the outline by using a line loop
if (myLineColour != null) {
gl.glColor4d(myLineColour[0], myLineColour[1], myLineColour[2], myLineColour[3]);
gl.glBegin(GL2.GL_LINE_LOOP);
int numPoints = myPoints.length / 2;
for (int i = 0; i < numPoints; i++) {
gl.glVertex2d(myPoints[i * 2], myPoints[i * 2 + 1]);
}
gl.glEnd();
}
}
protected void setBlendingFunction(DrawContext dc) {
GL2 gl = dc.getGL().getGL2();
double alpha = this.getOpacity();
gl.glColor4d(alpha, alpha, alpha, alpha);
gl.glEnable(GL2.GL_BLEND);
gl.glBlendFunc(GL2.GL_SRC_ALPHA, GL2.GL_ONE_MINUS_SRC_ALPHA);
}
@Override
protected void doRender(DrawContext dc) {
if (!loaded) {
loaded = true;
loadAttempts++;
downloadData();
}
if (lastVerticalExaggeration != dc.getVerticalExaggeration() || lastGlobe != dc.getGlobe()) {
lastVerticalExaggeration = dc.getVerticalExaggeration();
lastGlobe = dc.getGlobe();
recalculateVertices(lastGlobe, lastVerticalExaggeration);
recalculateColors();
}
GL2 gl = dc.getGL().getGL2();
int push = GL2.GL_CLIENT_VERTEX_ARRAY_BIT;
if (colors != null) {
push |= GL2.GL_COLOR_BUFFER_BIT;
}
if (getOpacity() < 1.0) {
push |= GL2.GL_CURRENT_BIT;
}
gl.glPushClientAttrib(push);
if (colors != null) {
gl.glEnableClientState(GL2.GL_COLOR_ARRAY);
gl.glColorPointer(4, GL2.GL_DOUBLE, 0, colors.rewind());
}
if (getOpacity() < 1.0) {
setBlendingFunction(dc);
}
gl.glEnableClientState(GL2.GL_VERTEX_ARRAY);
gl.glVertexPointer(3, GL2.GL_DOUBLE, 0, vertices.rewind());
gl.glDrawElements(
GL2.GL_TRIANGLE_STRIP, indices.limit(), GL2.GL_UNSIGNED_INT, indices.rewind());
gl.glColor4d(1, 1, 1, 1);
gl.glPopClientAttrib();
}
public void renderSelection(GL2 g) {
if ((Globals.tab == Tab.labels || Globals.tab == Tab.height)) {
g.glDisable(GL2.GL_ALPHA_TEST);
g.glEnable(GL2.GL_BLEND);
g.glBlendFunc(GL2.GL_SRC_ALPHA, GL2.GL_ONE_MINUS_SRC_ALPHA);
double color = System.currentTimeMillis();
color %= 2000d;
color -= 1000d;
color = Math.abs(color);
color /= 1000d;
g.glColor4d(1, 1, 0, 0.1d + 0.2d * color);
g.glBegin(GL2.GL_QUADS);
g.glVertex2f(0, 0);
g.glVertex2f(0, 4);
g.glVertex2f(4, 4);
g.glVertex2f(4, 0);
g.glEnd();
g.glColor4f(1, 1, 1, 1);
g.glDisable(GL2.GL_BLEND);
g.glEnable(GL2.GL_ALPHA_TEST);
}
}
public void renderObj(GL2 gl) {
gl.glPushMatrix();
gl.glEnable(GL2.GL_TEXTURE_2D);
gl.glTexParameterf(GL2.GL_TEXTURE_2D, GL2.GL_TEXTURE_MAG_FILTER, GL2.GL_NEAREST);
gl.glTexParameterf(GL2.GL_TEXTURE_2D, GL2.GL_TEXTURE_MIN_FILTER, GL2.GL_NEAREST);
texture.enable(gl);
texture.bind(gl);
gl.glDisable(GL2.GL_DEPTH_TEST);
gl.glColor4d(1, 1, 1, transparancy);
gl.glScalef(canvas.orthoCoordWidth / 2, canvas.orthoCoordWidth / 2 / canvas.aspectRatio, 1);
gl.glBegin(GL2.GL_QUADS);
gl.glTexCoord2f(0, 0);
gl.glVertex2f(-1, -1);
gl.glTexCoord2f(1, 0);
gl.glVertex2f(1, -1);
gl.glTexCoord2f(1, 1);
gl.glVertex2f(1, 1);
gl.glTexCoord2f(0, 1);
gl.glVertex2f(-1, 1);
gl.glEnd();
gl.glEnable(GL2.GL_DEPTH_TEST);
gl.glDisable(GL2.GL_TEXTURE_2D);
gl.glPopMatrix();
}