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#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();
};
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