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attempts to merge mirrored curves

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This commit is contained in:
yugecin
2016-12-25 17:30:09 +01:00
parent 0e30a1e0e4
commit 9ec2d1a5a8
4 changed files with 67 additions and 29 deletions
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78
src/itdelatrisu/opsu/render/CurveRenderState.java
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@@ -18,6 +18,7 @@
package itdelatrisu.opsu.render;
import itdelatrisu.opsu.GameImage;
import itdelatrisu.opsu.Options;
import itdelatrisu.opsu.Utils;
import itdelatrisu.opsu.beatmap.HitObject;
import itdelatrisu.opsu.objects.Circle;
@@ -31,7 +32,6 @@ import org.lwjgl.BufferUtils;
import org.lwjgl.opengl.EXTFramebufferObject;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL13;
import org.lwjgl.opengl.GL14;
import org.lwjgl.opengl.GL15;
import org.lwjgl.opengl.GL20;
import org.newdawn.slick.Color;
@@ -69,6 +69,8 @@ public class CurveRenderState {
private int spliceFrom;
private int spliceTo;
private final int mirrors;
/**
* Set the width and height of the container that Curves get drawn into.
* Should be called before any curves are drawn.
@@ -102,9 +104,14 @@ public class CurveRenderState {
* @param hitObject the HitObject that represents this curve, just used as a unique ID
* @param curve the points along the curve to be drawn
*/
public CurveRenderState(HitObject hitObject, Vec2f[] curve) {
public CurveRenderState(HitObject hitObject, Vec2f[] curve, boolean isKnorkeSlider) {
this.hitObject = hitObject;
this.curve = curve;
if (isKnorkeSlider) {
this.mirrors = Options.getMergingSlidersMirrorPool();
} else {
this.mirrors = 1;
}
initFBO();
}
@@ -280,28 +287,33 @@ public class CurveRenderState {
*/
private void createVertexBuffer(int bufferID) {
int arrayBufferBinding = GL11.glGetInteger(GL15.GL_ARRAY_BUFFER_BINDING);
FloatBuffer buff = BufferUtils.createByteBuffer(4 * (4 + 2) * (2 * curve.length - 1) * (NewCurveStyleState.DIVIDES + 2)).asFloatBuffer();
FloatBuffer buff = BufferUtils.createByteBuffer(4 * (4 + 2) * (2 * curve.length * mirrors - 1) * (NewCurveStyleState.DIVIDES + 2)).asFloatBuffer();
if (curve.length > 0) {
fillCone(buff, curve[0].x, curve[0].y);
fillCone(buff, curve[0].x, curve[0].y, 0);
}
for (int i = 1; i < curve.length; ++i) {
float x = curve[i].x;
float y = curve[i].y;
fillCone(buff, x, y);
float last_x = curve[i - 1].x;
float last_y = curve[i - 1].y;
double diff_x = x - last_x;
double diff_y = y - last_y;
float dist = Utils.distance(x, y, last_x, last_y);
if (dist < Circle.diameter / 8) {
x = (float) (x - diff_x / 2);
y = (float) (y - diff_y / 2);
} else {
// don't mind me
x = -100f;
y = -100f;
for (int mirror = 0; mirror < mirrors; mirror++) {
//final float angle = 360f * mirror / mirrors;
final float angle = 180f;
for (int i = 1; i < curve.length; ++i) {
float x = curve[i].x;
float y = curve[i].y;
fillCone(buff, x, y, angle);
float last_x = curve[i - 1].x;
float last_y = curve[i - 1].y;
double diff_x = x - last_x;
double diff_y = y - last_y;
float dist = Utils.distance(x, y, last_x, last_y);
if (dist < Circle.diameter / 8) {
x = (float) (x - diff_x / 2);
y = (float) (y - diff_y / 2);
} else {
// don't mind me
x = -100f;
y = -100f;
}
fillCone(buff, x, y, angle);
}
fillCone(buff, x, y);
}
buff.flip();
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, bufferID);
@@ -332,11 +344,9 @@ public class CurveRenderState {
if (clearFirst) {
GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
}
for (int i = from * 2; i < to * 2 - 1; ++i) {
if (spliceFrom <= i && i <= spliceTo) {
continue;
}
GL11.glDrawArrays(GL11.GL_TRIANGLE_FAN, i * (NewCurveStyleState.DIVIDES + 2), NewCurveStyleState.DIVIDES + 2);
renderCurve(from, to, 0);
if (mirrors > 1 && Options.isMirror()) {
renderCurve(from, to, 1);
}
GL11.glFlush();
GL20.glDisableVertexAttribArray(staticState.texCoordLoc);
@@ -344,6 +354,15 @@ public class CurveRenderState {
restoreRenderState(state);
}
private void renderCurve(int from, int to, int mirror) {
for (int i = from * 2; i < to * 2 - 1; ++i) {
if (spliceFrom <= i && i <= spliceTo) {
continue;
}
GL11.glDrawArrays(GL11.GL_TRIANGLE_FAN, i * (NewCurveStyleState.DIVIDES + 2) + mirror * curve.length, NewCurveStyleState.DIVIDES + 2);
}
}
/**
* Fill {@code buff} with the texture coordinates and positions for a cone
* that has its center at the coordinates {@code (x1,y1)}.
@@ -351,7 +370,12 @@ public class CurveRenderState {
* @param x1 x-coordinate of the cone
* @param y1 y-coordinate of the cone
*/
protected void fillCone(FloatBuffer buff, float x1, float y1) {
protected void fillCone(FloatBuffer buff, float x1, float y1, float angle) {
if (mirrors > 1) {
float[] m = Utils.mirrorPoint(x1, y1, angle);
x1 = m[0];
y1 = m[1];
}
float divx = containerWidth / 2.0f;
float divy = containerHeight / 2.0f;
float offx = -1.0f;