From 5d3ff36045bfb11af0f373d5ecee7c9b54e4c4f9 Mon Sep 17 00:00:00 2001 From: mattkae Date: Mon, 3 Apr 2023 06:35:27 -0400 Subject: Folderized all of the seasons and loading the shaders from a remote source --- themes/src/autumn/AutumnTheme.cpp | 23 ++++ themes/src/autumn/AutumnTheme.hpp | 20 +++ themes/src/autumn/LeafParticleRender.cpp | 166 ++++++++++++++++++++++++ themes/src/autumn/LeafParticleRender.h | 58 +++++++++ themes/src/autumn/TreeShape.cpp | 214 +++++++++++++++++++++++++++++++ themes/src/autumn/TreeShape.h | 74 +++++++++++ 6 files changed, 555 insertions(+) create mode 100644 themes/src/autumn/AutumnTheme.cpp create mode 100644 themes/src/autumn/AutumnTheme.hpp create mode 100644 themes/src/autumn/LeafParticleRender.cpp create mode 100644 themes/src/autumn/LeafParticleRender.h create mode 100644 themes/src/autumn/TreeShape.cpp create mode 100644 themes/src/autumn/TreeShape.h (limited to 'themes/src/autumn') diff --git a/themes/src/autumn/AutumnTheme.cpp b/themes/src/autumn/AutumnTheme.cpp new file mode 100644 index 0000000..6e6fe2b --- /dev/null +++ b/themes/src/autumn/AutumnTheme.cpp @@ -0,0 +1,23 @@ +#include "AutumnTheme.hpp" +#include "../Renderer2d.h" + +void AutumnTheme::load(Renderer2d* renderer) { + renderer->clearColor = Vector4(252, 210, 153, 255).toNormalizedColor(); + auto lr = tree.load(renderer); + leafParticles.load(renderer, &lr); +} + +void AutumnTheme::update(f32 dtSeconds) { + tree.update(dtSeconds); + leafParticles.update(dtSeconds); +} + +void AutumnTheme::render(Renderer2d* renderer) { + tree.render(renderer); + leafParticles.render(renderer); +} + +void AutumnTheme::unload() { + tree.unload(); + leafParticles.unload(); +} \ No newline at end of file diff --git a/themes/src/autumn/AutumnTheme.hpp b/themes/src/autumn/AutumnTheme.hpp new file mode 100644 index 0000000..18da959 --- /dev/null +++ b/themes/src/autumn/AutumnTheme.hpp @@ -0,0 +1,20 @@ +#ifndef AUTUMN_THEME_HPP +#define AUTUMN_THEME_HPP + +#include "TreeShape.h" +#include "LeafParticleRender.h" +#include "../types.h" + +struct Renderer2d; + +struct AutumnTheme { + TreeShape tree; + LeafParticleRender leafParticles; + + void load(Renderer2d* renderer); + void update(f32 dtSeconds); + void render(Renderer2d* renderer); + void unload(); +}; + +#endif \ No newline at end of file diff --git a/themes/src/autumn/LeafParticleRender.cpp b/themes/src/autumn/LeafParticleRender.cpp new file mode 100644 index 0000000..fee3df2 --- /dev/null +++ b/themes/src/autumn/LeafParticleRender.cpp @@ -0,0 +1,166 @@ +#include "LeafParticleRender.h" +#include "../Renderer2d.h" +#include "../mathlib.h" +#include "TreeShape.h" +#include "../types.h" +#include + +const i32 verticesPerLeaf = 6; +const f32 leafRadius = 3.f; +const i32 fallChanceMax = 100; + +inline void updateLeaf(Vertex2D* vertices, Vector2 position, Vector4 color, f32 scale) { + f32 radius = scale * leafRadius; + Vector2 bottomLeft = Vector2(-radius, -radius) + position; + Vector2 bottomRight = Vector2(radius, -radius) + position; + Vector2 topLeft = Vector2(-radius, radius) + position; + Vector2 topRight = Vector2(radius, radius) + position; + + vertices[0] = { bottomLeft, color, Mat4x4() }; + vertices[1] = { bottomRight, color, Mat4x4() }; + vertices[2] = { topLeft, color, Mat4x4() }; + vertices[3] = { topLeft, color, Mat4x4() }; + vertices[4] = { topRight, color, Mat4x4() }; + vertices[5] = { bottomRight, color, Mat4x4() }; +} + +void LeafParticleRender::load(Renderer2d *renderer, TreeShapeLoadResult* lr) { + LeafParticleLoadData ld; + ld.numLeaves = 256; + numLeaves = ld.numLeaves; + numVertices = ld.numLeaves * verticesPerLeaf; + + updateData = new LeafParticleUpdateData[numLeaves]; + vertices = new Vertex2D[numVertices]; + + for (i32 leafIdx = 0; leafIdx < numLeaves; leafIdx++) { + i32 randomBranch = randomIntBetween(0, lr->numBranches); + i32 randomVertex = randomIntBetween(0, 6); // TODO: Manually entering num vertices per branch. + updateData[leafIdx].vertexToFollow = &lr->updateData[randomBranch].vertices[randomVertex]; + updateData[leafIdx].fallChance = randomIntBetween(0, fallChanceMax); + updateData[leafIdx].color = Vector4(randomFloatBetween(0.3, 0.9), randomFloatBetween(0.1, 0.6), 0, 1); + updateData[leafIdx].vertexPtr = &vertices[leafIdx * verticesPerLeaf]; + updateData[leafIdx].resetTime = randomFloatBetween(4.f, 6.f); + } + + useShader(renderer->shader); + + glGenVertexArrays(1, &vao); + glBindVertexArray(vao); + + glGenBuffers(1, &vbo); + glBindBuffer(GL_ARRAY_BUFFER, vbo); + glBufferData(GL_ARRAY_BUFFER, numVertices * sizeof(Vertex2D), &vertices[0], GL_DYNAMIC_DRAW); + + glEnableVertexAttribArray(renderer->attributes.position); + glVertexAttribPointer(renderer->attributes.position, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex2D), (GLvoid *)0); + + glEnableVertexAttribArray(renderer->attributes.color); + glVertexAttribPointer(renderer->attributes.color, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex2D), (GLvoid *)offsetof(Vertex2D, color)); + + for (i32 idx = 0; idx < 4; idx++) { + glEnableVertexAttribArray(renderer->attributes.vMatrix + idx); + glVertexAttribPointer(renderer->attributes.vMatrix + idx, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex2D), (GLvoid *)(offsetof(Vertex2D, vMatrix) + (idx * 16))); + } + + glBindBuffer(GL_ARRAY_BUFFER, 0); + glBindVertexArray(0); +} + +void LeafParticleRender::update(f32 dtSeconds) { + elapsedTimeSeconds += dtSeconds; + + // Every time the fallIntervalSeconds passes, we remove one leaf + // from the tree and send it barrelling towards the earth. + i32 fallRoll; + bool didGenerateFall = false; + if (elapsedTimeSeconds >= fallIntervalSeconds) { + fallRoll = randomIntBetween(0, fallChanceMax); + didGenerateFall = true; + elapsedTimeSeconds = 0; + } + + for (i32 leafIdx = 0; leafIdx < numLeaves; leafIdx++) { + auto updateDataItem = &updateData[leafIdx]; + + if (didGenerateFall) { + if (updateDataItem->state == LeafParticleState::OnTree && updateDataItem->fallChance == fallRoll) { + updateDataItem->state = LeafParticleState::Falling; + updateDataItem->fallPosition = updateDataItem->vertexToFollow->position; + updateDataItem->fallVerticalVelocity = -randomFloatBetween(15.f, 25.f); + updateDataItem->fallHorizontalFrequency = randomFloatBetween(3.f, 5.f); + } + } + + switch (updateDataItem->state) { + case (LeafParticleState::Remerging): { + updateDataItem->timeElapsedSeconds += dtSeconds; + + if (updateDataItem->timeElapsedSeconds >= updateDataItem->resetTime) { + updateDataItem->timeElapsedSeconds = 0.f; + updateDataItem->state = LeafParticleState::OnTree; + updateDataItem->color.w = 1.f; + updateDataItem->scale = 1.f; + } + else { + updateDataItem->color.w = (updateDataItem->timeElapsedSeconds / updateDataItem->resetTime); + updateDataItem->scale = (updateDataItem->timeElapsedSeconds / updateDataItem->resetTime); + } + + updateLeaf(updateDataItem->vertexPtr, updateDataItem->vertexToFollow->position, updateDataItem->color, updateDataItem->scale); + break; + } + case (LeafParticleState::OnGround): { + updateDataItem->timeElapsedSeconds += dtSeconds; + + if (updateDataItem->timeElapsedSeconds >= updateDataItem->resetTime) { + updateDataItem->timeElapsedSeconds = 0.f; + updateDataItem->color.w = 0.f; + updateDataItem->state = LeafParticleState::Remerging; + } + else { + updateDataItem->color.w = 1.f - (updateDataItem->timeElapsedSeconds / updateDataItem->resetTime); + updateLeaf(updateDataItem->vertexPtr, updateDataItem->fallPosition, updateDataItem->color, updateDataItem->scale); + } + break; + } + case (LeafParticleState::Falling): { + updateDataItem->timeElapsedSeconds += dtSeconds; + const f32 xPosUpdate = cosf(updateDataItem->fallHorizontalFrequency * updateDataItem->timeElapsedSeconds); + updateDataItem->fallPosition.x += xPosUpdate; + updateDataItem->fallPosition.y += updateDataItem->fallVerticalVelocity * dtSeconds; + if (updateDataItem->fallPosition.y <= 50.f) { // TODO: Hardcoded ground for now + updateDataItem->fallPosition.y = 50.f; + updateDataItem->state = LeafParticleState::OnGround; + updateDataItem->timeElapsedSeconds = 0; + updateDataItem->resetTime = randomFloatBetween(2.f, 5.f); // TODO: Hardcoded reset interval + } + updateLeaf(updateDataItem->vertexPtr, updateDataItem->fallPosition, updateDataItem->color, updateDataItem->scale); + break; + } + case (LeafParticleState::OnTree): { + updateLeaf(updateDataItem->vertexPtr, updateDataItem->vertexToFollow->position, updateDataItem->color, updateDataItem->scale); + break; + } + } + } +} + +void LeafParticleRender::render(Renderer2d *renderer) { + setShaderMat4(renderer->uniforms.model, model); + + glBindBuffer(GL_ARRAY_BUFFER, vbo); + glBufferSubData(GL_ARRAY_BUFFER, 0, numVertices * sizeof(Vertex2D), &vertices[0]); + + glBindVertexArray(vao); + glDrawArrays(GL_TRIANGLES, 0, numVertices); + glBindVertexArray(0); +} + +void LeafParticleRender::unload() { + glDeleteVertexArrays(1, &vao); + glDeleteBuffers(1, &vbo); + delete [] vertices; + + elapsedTimeSeconds = 0; +} diff --git a/themes/src/autumn/LeafParticleRender.h b/themes/src/autumn/LeafParticleRender.h new file mode 100644 index 0000000..f6efe1f --- /dev/null +++ b/themes/src/autumn/LeafParticleRender.h @@ -0,0 +1,58 @@ +#include "../Renderer2d.h" +#include "../mathlib.h" +#include "../types.h" + +struct TreeShapeLoadResult; + +struct LeafParticleLoadData { + Vector2 initPosition; + Vector4 initColor; + int numLeaves = 48; +}; + +enum LeafParticleState { + OnTree, + Falling, + OnGround, + Remerging +}; + +struct LeafParticleUpdateData { + LeafParticleState state = LeafParticleState::Remerging; + + Vertex2D* vertexToFollow = NULL; + Vector4 color = Vector4(1.f, 0.f, 0.f, 0.f); + f32 scale = 1.f; + + f32 timeElapsedSeconds = 0.f; + i32 fallChance = -1; + Vector2 fallPosition; + f32 fallVerticalVelocity; + f32 fallHorizontalFrequency; + + f32 resetTime = 0.f; + + Vertex2D* vertexPtr = NULL; +}; + +struct LeafParticleRender { + f32 elapsedTimeSeconds = 0.5; + f32 fallIntervalSeconds = 1.f; + + // Update data + i32 numLeaves = 0; + + LeafParticleUpdateData* updateData = NULL; + Vertex2D* vertices = NULL; + + // Render data + u32 vao; + u32 vbo; + u32 numVertices = 0; + Mat4x4 model; + + void load(Renderer2d* renderer, TreeShapeLoadResult* lr); + void update(f32 dtSeconds); + void render(Renderer2d* renderer); + void unload(); +}; \ No newline at end of file diff --git a/themes/src/autumn/TreeShape.cpp b/themes/src/autumn/TreeShape.cpp new file mode 100644 index 0000000..9738fd5 --- /dev/null +++ b/themes/src/autumn/TreeShape.cpp @@ -0,0 +1,214 @@ +#include "TreeShape.h" +#include "../mathlib.h" +#include +#include +#include +#include + +void TreeBranchLoadData::fillVertices(Vertex2D* vertices, int branchTier) { + bottomLeft = Vector2 { position.x - width / 2.f, position.y }.rotateAround(rotation, position); + bottomRight = Vector2 { position.x + width / 2.f, position.y }.rotateAround(rotation, position); + topLeft = (Vector2 { position.x - width / 2.f, position.y + height }).rotateAround(rotation, position); + topRight = (Vector2 { position.x + width / 2.f, position.y + height }).rotateAround(rotation, position); + + topMidpoint = topLeft + (topRight - topLeft) / 2.f; + + vertices[0] = { bottomLeft, color}; + vertices[1] = { bottomRight, color}; + vertices[2] = { topLeft, color}; + vertices[3] = { topLeft, color}; + vertices[4] = { topRight, color}; + vertices[5] = { bottomRight, color}; +}; + +TreeShapeLoadResult TreeShape::load(Renderer2d* renderer) { + srand ( time(NULL) ); + + timeElapsedSeconds = 0; + + TreeLoadData ld; + + numBranches = pow(ld.divisionsPerBranch, ld.numBranchLevels + 1); + numVertices = 6 * numBranches; + + TreeBranchLoadData* generationData = new TreeBranchLoadData[numBranches]; + updateData = new TreeBranchUpdateData[numBranches]; + vertices = new Vertex2D[numVertices]; + + // The load result will contain information that we can pass on to our leaf renderer. + TreeShapeLoadResult lr; + lr.lowerBounds = Vector2(FLT_MAX, FLT_MAX); + lr.upperBounds = Vector2(FLT_MIN, FLT_MIN); + lr.updateData = updateData; + lr.numBranches = numBranches; + i32 branchIndex = 0; + createBranch(&ld, generationData, numBranches, &branchIndex, 0, ld.trunkWidth, ld.trunkHeight, Vector2 { 300.f, 50.f }, 0, NULL, vertices, &lr); + + useShader(renderer->shader); + + glGenVertexArrays(1, &vao); + glBindVertexArray(vao); + + glGenBuffers(1, &vbo); + glBindBuffer(GL_ARRAY_BUFFER, vbo); + glBufferData(GL_ARRAY_BUFFER, numVertices * sizeof(Vertex2D), &vertices[0], GL_DYNAMIC_DRAW); + + glEnableVertexAttribArray(renderer->attributes.position); + glVertexAttribPointer(renderer->attributes.position, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex2D), (GLvoid *)0); + + glEnableVertexAttribArray(renderer->attributes.color); + glVertexAttribPointer(renderer->attributes.color, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex2D), (GLvoid *)offsetof(Vertex2D, color)); + + for (i32 idx = 0; idx < 4; idx++) { + glEnableVertexAttribArray(renderer->attributes.vMatrix + idx); + glVertexAttribPointer(renderer->attributes.vMatrix + idx, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex2D), (GLvoid *)(offsetof(Vertex2D, vMatrix) + (idx * 16))); + glVertexAttribDivisor(renderer->attributes.vMatrix + idx, 1); + } + + glBindBuffer(GL_ARRAY_BUFFER, 0); + glBindVertexArray(0); + + delete [] generationData; + + return lr; +} + +const f32 ninetyDegreeRotation = PI / 2.f; + +void TreeShape::createBranch(TreeLoadData* ld, TreeBranchLoadData* generationData, i32 numBranches, i32* branchIndex, + i32 branchLevel, f32 width, f32 height, Vector2 position, f32 rotation, + TreeBranchUpdateData* parent, Vertex2D* vertices, TreeShapeLoadResult* lr) { + TreeBranchLoadData* branchLoadData = &generationData[*branchIndex]; + branchLoadData->width = width; + branchLoadData->height = height; + branchLoadData->position = position; + branchLoadData->rotation = rotation; + branchLoadData->fillVertices(&vertices[(*branchIndex) * 6], branchLevel); + + // Fil in the bounds for the LeafRenderer later. + if (branchLoadData->topMidpoint.x > lr->upperBounds.x) { + lr->upperBounds.x = branchLoadData->topMidpoint.x; + } + if (branchLoadData->topMidpoint.y > lr->upperBounds.y) { + lr->upperBounds.y = branchLoadData->topMidpoint.y; + } + if (branchLoadData->topMidpoint.x < lr->lowerBounds.x) { + lr->lowerBounds.x = branchLoadData->topMidpoint.x; + } + if (branchLoadData->topMidpoint.y < lr->lowerBounds.y) { + lr->lowerBounds.y = branchLoadData->topMidpoint.y; + } + + TreeBranchUpdateData* branchUpdateData = &updateData[*branchIndex]; + branchUpdateData->tier = branchLevel; + branchUpdateData->periodOffset = randomFloatBetween(0.f, 2.f * PI); + branchUpdateData->period = randomFloatBetween(3.f, 5.f); + branchUpdateData->amplitude = randomFloatBetween(0.01f, 0.05f); + branchUpdateData->branchToFollow = parent; + branchUpdateData->vertices = &vertices[(*branchIndex) * 6]; + + if (branchLevel == ld->numBranchLevels) { + return; + } + + for (int division = 0; division < ld->divisionsPerBranch; division++) { + // Weight between [0, 1] + float weight = static_cast(division) / static_cast(ld->divisionsPerBranch - 1); + + // Normalize the weight between [-1, 1] + f32 normalizedWeight = (0.5f - (weight)) * 2.f; + + // We want a rotation that takes the current rotation of the branch, and averages it between the two branches. + f32 branchRotationAmount = randomFloatBetween(PI / 8.f, PI / 3.f); + f32 branchRotation = branchLoadData->rotation + (normalizedWeight * branchRotationAmount); + + // Since trees are taller vertically, we will find a normalized value that describes how far the direction is from + // being horizontal. If it is closer to 1, we will make the branch taller on average. + f32 verticalHeightScaler = (fabs(fabs(branchRotation) - ninetyDegreeRotation) / ninetyDegreeRotation) * 0.1; + f32 branchWidth = width * randomFloatBetween(ld->trunkWidthScalerMin, ld->trunkWidthScalerMax); + f32 branchHeight = height * randomFloatBetween(ld->trunkHeightScalerMin + verticalHeightScaler, ld->trunkHeightScalerMax + verticalHeightScaler); + + + // We want the branch to start within the previous branch, so we drop it down into it based off of the rotation. + Vector2 branchOffsetVertical = Vector2{ 0, branchWidth }.rotate(branchRotation); + + Vector2 branchPosition = branchLoadData->topLeft + ((branchLoadData->topRight - branchLoadData->topLeft) * weight) - branchOffsetVertical; // Position of branch along the top of the parent branch + + (*branchIndex)++; + createBranch(ld, generationData, numBranches, branchIndex, branchLevel + 1, branchWidth, branchHeight, branchPosition, branchRotation, branchUpdateData, vertices, lr); + } +} + +void TreeShape::update(f32 dtSeconds) { + timeElapsedSeconds += dtSeconds; + + for (i32 bIdx = 0; bIdx < numBranches; bIdx++) { + TreeBranchUpdateData* branchUpdataData = &updateData[bIdx]; + + // Fade in simulation. We fade in based on the tier. + f32 animationStart = (branchUpdataData->tier * animateStaggerPerTier); + f32 animationEnd = animationStart + animateTimePerTier; + + f32 alpha = 0.f; + if (timeElapsedSeconds < animationStart) { + alpha = 0.f; + } + else if (timeElapsedSeconds > animationEnd) { + alpha = 1.f; + } + else { + alpha = (1.f - (animationEnd - timeElapsedSeconds)) / animateTimePerTier; + } + + i32 startParentIndex = bIdx * 6; + + branchUpdataData->currentOffset.x = branchUpdataData->amplitude * cosf(branchUpdataData->periodOffset + branchUpdataData->period * timeElapsedSeconds); + branchUpdataData->currentOffset.y = branchUpdataData->amplitude * sinf(branchUpdataData->periodOffset + branchUpdataData->period * timeElapsedSeconds); + + if (branchUpdataData->branchToFollow != NULL) { + branchUpdataData->currentOffset += branchUpdataData->branchToFollow->currentOffset; + + // The root of the branch only moves according to the change of the end of the parent. + branchUpdataData->vertices[0].color.w = alpha; + branchUpdataData->vertices[0].position += branchUpdataData->branchToFollow->currentOffset; + branchUpdataData->vertices[1].color.w = alpha; + branchUpdataData->vertices[1].position += branchUpdataData->branchToFollow->currentOffset; + branchUpdataData->vertices[5].color.w = alpha; + branchUpdataData->vertices[5].position += branchUpdataData->branchToFollow->currentOffset; + } + else { + branchUpdataData->vertices[0].color.w = alpha; + branchUpdataData->vertices[1].color.w = alpha; + branchUpdataData->vertices[5].color.w = alpha; + } + + + branchUpdataData->vertices[2].color.w = alpha; + branchUpdataData->vertices[2].position += branchUpdataData->currentOffset; + branchUpdataData->vertices[3].color.w = alpha; + branchUpdataData->vertices[3].position += branchUpdataData->currentOffset; + branchUpdataData->vertices[4].color.w = alpha; + branchUpdataData->vertices[4].position += branchUpdataData->currentOffset; + } +} + +void TreeShape::render(Renderer2d* renderer) { + setShaderMat4(renderer->uniforms.model, model); + + glBindBuffer(GL_ARRAY_BUFFER, vbo); + glBufferSubData(GL_ARRAY_BUFFER, 0, numVertices * sizeof(Vertex2D), &vertices[0]); + + glBindVertexArray(vao); + glDrawArrays(GL_TRIANGLES, 0, numVertices); + glBindVertexArray(0); +} + +void TreeShape::unload() { + glDeleteVertexArrays(1, &vao); + glDeleteBuffers(1, &vbo); + delete[] vertices; + delete [] updateData; + timeElapsedSeconds = 0; + vertices = NULL; + updateData = NULL; +} diff --git a/themes/src/autumn/TreeShape.h b/themes/src/autumn/TreeShape.h new file mode 100644 index 0000000..fc0d11e --- /dev/null +++ b/themes/src/autumn/TreeShape.h @@ -0,0 +1,74 @@ +#include "../Renderer2d.h" +#include "../types.h" +#include "../mathlib.h" + +struct TreeLoadData { + f32 trunkHeight = 96.f; // Height of the trunk start + f32 trunkWidth = 32.f; // Width of the trunk start + f32 trunkHeightScalerMin = 0.7f; + f32 trunkHeightScalerMax = 0.8f; + f32 trunkWidthScalerMin = 0.35f; + f32 trunkWidthScalerMax = 0.75f; + i32 divisionsPerBranch = 2; // How many branches to split into at each branch split + i32 numBranchLevels = 8; // How many branch levels to display +}; + +struct TreeBranchLoadData { + f32 width = 0.f; + f32 height = 0.f; + Vector2 position; // Center point + f32 rotation = 0; // How much we are rotated off of the center point in radians + Vector4 color = Vector4(101,56,24, 1.f).toNormalizedColor(); + + // Calculated while filling in vertices + Vector2 bottomLeft; + Vector2 bottomRight; + Vector2 topLeft; + Vector2 topRight; + Vector2 topMidpoint; + + void fillVertices(Vertex2D* vertices, int branchTier); +}; + +struct TreeBranchUpdateData { + i32 tier = 0; + f32 periodOffset = 0; + f32 period = 0; + f32 amplitude = 0; + Vector2 currentOffset; + Vertex2D* vertices = NULL; + TreeBranchUpdateData* branchToFollow = NULL; +}; + +struct TreeShapeLoadResult { + Vector2 lowerBounds; + Vector2 upperBounds; + Vector2 center; + TreeBranchUpdateData* updateData; + u32 numBranches = 0; +}; + +struct TreeShape { + // Update data + TreeBranchUpdateData* updateData = NULL; + Vertex2D* vertices = NULL; + f32 timeElapsedSeconds = 0.f; + f32 animateTimePerTier = 1.f; + f32 animateStaggerPerTier = 0.2f; + u32 numBranches = 0; + + // Render data + u32 vao; + u32 vbo; + u32 numVertices = 0; + Mat4x4 model; + + TreeShapeLoadResult load(Renderer2d* renderer); + void createBranch(TreeLoadData* ld, TreeBranchLoadData* branchList, i32 numBranches, + i32* branchIndex, i32 branchLevel, f32 width, f32 height, + Vector2 position, f32 rotation, TreeBranchUpdateData* parent, Vertex2D* vertices, TreeShapeLoadResult* lr); + void update(f32 dtSeconds); + void render(Renderer2d* renderer); + void unload(); +}; + -- cgit v1.2.1