| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.fountain; |
| |
| import android.content.res.Resources; |
| import android.renderscript.*; |
| import android.util.Log; |
| |
| |
| public class FountainRS { |
| public static final int PART_COUNT = 50000; |
| |
| public FountainRS() { |
| } |
| |
| private Resources mRes; |
| private RenderScriptGL mRS; |
| private ScriptC_fountain mScript; |
| public void init(RenderScriptGL rs, Resources res, int width, int height) { |
| mRS = rs; |
| mRes = res; |
| |
| ProgramFragmentFixedFunction.Builder pfb = new ProgramFragmentFixedFunction.Builder(rs); |
| pfb.setVaryingColor(true); |
| rs.bindProgramFragment(pfb.create()); |
| |
| ScriptField_Point points = new ScriptField_Point(mRS, PART_COUNT);// |
| // Allocation.USAGE_GRAPHICS_VERTEX); |
| |
| Mesh.AllocationBuilder smb = new Mesh.AllocationBuilder(mRS); |
| smb.addVertexAllocation(points.getAllocation()); |
| smb.addIndexSetType(Mesh.Primitive.POINT); |
| Mesh sm = smb.create(); |
| |
| mScript = new ScriptC_fountain(mRS, mRes, R.raw.fountain); |
| mScript.set_partMesh(sm); |
| mScript.bind_point(points); |
| mRS.bindRootScript(mScript); |
| } |
| |
| boolean holdingColor[] = new boolean[10]; |
| public void newTouchPosition(float x, float y, float pressure, int id) { |
| if (id >= holdingColor.length) { |
| return; |
| } |
| int rate = (int)(pressure * pressure * 500.f); |
| if (rate > 500) { |
| rate = 500; |
| } |
| if (rate > 0) { |
| mScript.invoke_addParticles(rate, x, y, id, !holdingColor[id]); |
| holdingColor[id] = true; |
| } else { |
| holdingColor[id] = false; |
| } |
| |
| } |
| } |